diff --git a/www/apps/book/public/llms-full.txt b/www/apps/book/public/llms-full.txt index cd2acfbec3..2ac13e9c05 100644 --- a/www/apps/book/public/llms-full.txt +++ b/www/apps/book/public/llms-full.txt @@ -345,6 +345,28 @@ Refer to [this documentation](https://docs.medusajs.com/learn/update/index.html. In the next chapters, you'll learn about the architecture of your Medusa application, then learn how to customize your application to build custom features. +# Storefront Development + +The Medusa application is made up of a Node.js server and an admin dashboard. Storefronts are installed, built, and hosted separately from the Medusa application, giving you the flexibility to choose the frontend tech stack that you and your team are proficient in, and implement unique design systems and user experience. + +You can build your storefront from scratch with your preferred tech stack, or start with our Next.js Starter storefront. The Next.js Starter storefront provides rich commerce features and a sleek design. Developers and businesses can use it as-is or build on top of it to tailor it for the business's unique use case, design, and customer experience. + +- [Install Next.js Starter Storefront](https://docs.medusajs.com/resources/nextjs-starter/index.html.md) +- [Build Custom Storefront](https://docs.medusajs.com/resources/storefront-development/index.html.md) + +*** + +## Passing a Publishable API Key in Storefront Requests + +When sending a request to an API route starting with `/store`, you must include a publishable API key in the header of your request. + +A publishable API key sets the scope of your request to one or more sales channels. + +Then, when you retrieve products, only products of those sales channels are retrieved. This also ensures you retrieve correct inventory data, and associate created orders with the scoped sales channel. + +Learn more about passing the publishable API key in [this storefront development guide](https://docs.medusajs.com/resources/storefront-development/publishable-api-keys/index.html.md). + + # Updating Medusa In this chapter, you'll learn about updating your Medusa application and packages. @@ -451,72 +473,6 @@ npm install ``` -# Storefront Development - -The Medusa application is made up of a Node.js server and an admin dashboard. Storefronts are installed, built, and hosted separately from the Medusa application, giving you the flexibility to choose the frontend tech stack that you and your team are proficient in, and implement unique design systems and user experience. - -You can build your storefront from scratch with your preferred tech stack, or start with our Next.js Starter storefront. The Next.js Starter storefront provides rich commerce features and a sleek design. Developers and businesses can use it as-is or build on top of it to tailor it for the business's unique use case, design, and customer experience. - -- [Install Next.js Starter Storefront](https://docs.medusajs.com/resources/nextjs-starter/index.html.md) -- [Build Custom Storefront](https://docs.medusajs.com/resources/storefront-development/index.html.md) - -*** - -## Passing a Publishable API Key in Storefront Requests - -When sending a request to an API route starting with `/store`, you must include a publishable API key in the header of your request. - -A publishable API key sets the scope of your request to one or more sales channels. - -Then, when you retrieve products, only products of those sales channels are retrieved. This also ensures you retrieve correct inventory data, and associate created orders with the scoped sales channel. - -Learn more about passing the publishable API key in [this storefront development guide](https://docs.medusajs.com/resources/storefront-development/publishable-api-keys/index.html.md). - - -# Using TypeScript Aliases - -By default, Medusa doesn't support TypeScript aliases in production. - -If you prefer using TypeScript aliases, install following development dependencies: - -```bash npm2yarn -npm install --save-dev tsc-alias rimraf -``` - -Where `tsc-alias` is a package that resolves TypeScript aliases, and `rimraf` is a package that removes files and directories. - -Then, add a new `resolve:aliases` script to your `package.json` and update the `build` script: - -```json title="package.json" -{ - "scripts": { - // other scripts... - "resolve:aliases": "tsc --showConfig -p tsconfig.json > tsconfig.resolved.json && tsc-alias -p tsconfig.resolved.json && rimraf tsconfig.resolved.json", - "build": "medusa build && npm run resolve:aliases" - } -} -``` - -You can now use TypeScript aliases in your Medusa application. For example, add the following in `tsconfig.json`: - -```json title="tsconfig.json" -{ - "compilerOptions": { - // ... - "paths": { - "@/*": ["./src/*"] - } - } -} -``` - -Now, you can import modules, for example, using TypeScript aliases: - -```ts -import { BrandModuleService } from "@/modules/brand/service" -``` - - # Medusa Application Configuration In this chapter, you'll learn available configurations in the Medusa application. You can change the application's configurations to customize the behavior of the application, its integrated modules and plugins, and more. @@ -1420,386 +1376,177 @@ npx medusa db:migrate ``` -# Medusa's Architecture +# Using TypeScript Aliases -In this chapter, you'll learn about the architectural layers in Medusa. +By default, Medusa doesn't support TypeScript aliases in production. -Find the full architectural diagram at the [end of this chapter](#full-diagram-of-medusas-architecture). - -## HTTP, Workflow, and Module Layers - -Medusa is a headless commerce platform. So, storefronts, admin dashboards, and other clients consume Medusa's functionalities through its API routes. - -In a common Medusa application, requests go through four layers in the stack. In order of entry, those are: - -1. API Routes (HTTP): Our API Routes are the typical entry point. The Medusa server is based on Express.js, which handles incoming requests. It can also connect to a Redis database that stores the server session data. -2. Workflows: API Routes consume workflows that hold the opinionated business logic of your application. -3. Modules: Workflows use domain-specific modules for resource management. -4. Data store: Modules query the underlying datastore, which is a PostgreSQL database in common cases. - -These layers of stack can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). - -![This diagram illustrates the entry point of requests into the Medusa application through API routes. It shows a storefront and an admin that can send a request to the HTTP layer. The HTTP layer then uses workflows to handle the business logic. Finally, the workflows use modules to query and manipulate data in the data stores.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175296/Medusa%20Book/http-layer_sroafr.jpg) - -*** - -## Database Layer - -The Medusa application injects into each module, including your [custom modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), a connection to the configured PostgreSQL database. Modules use that connection to read and write data to the database. - -Modules can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). - -![This diagram illustrates how modules connect to the database.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175379/Medusa%20Book/db-layer_pi7tix.jpg) - -*** - -## Third-Party Integrations Layer - -Third-party services and systems are integrated through Medusa's Commerce and Infrastructure Modules. You also create custom third-party integrations through a [custom module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). - -Modules can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). - -### Commerce Modules - -[Commerce Modules](https://docs.medusajs.com/resources/commerce-modules/index.html.md) integrate third-party services relevant for commerce or user-facing features. For example, you can integrate [Stripe](https://docs.medusajs.com/resources/commerce-modules/payment/payment-provider/stripe/index.html.md) through a Payment Module Provider, or [ShipStation](https://docs.medusajs.com/resources/integrations/guides/shipstation/index.html.md) through a Fulfillment Module Provider. - -You can also integrate third-party services for custom functionalities. For example, you can integrate [Sanity](https://docs.medusajs.com/resources/integrations/guides/sanity/index.html.md) for rich CMS capabilities, or [Odoo](https://docs.medusajs.com/resources/recipes/erp/odoo/index.html.md) to sync your Medusa application with your ERP system. - -You can replace any of the third-party services mentioned above to build your preferred commerce ecosystem. - -![Diagram illustrating the Commerce Modules integration to third-party services](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175357/Medusa%20Book/service-commerce_qcbdsl.jpg) - -### Infrastructure Modules - -[Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) integrate third-party services and systems that customize Medusa's infrastructure. Medusa has the following Infrastructure Modules: - -- [Analytics Module](https://docs.medusajs.com/resources/infrastructure-modules/analytics/index.html.md): Tracks and analyzes user interactions and system events with third-party analytic providers. You can integrate [PostHog](https://docs.medusajs.com/resources/infrastructure-modules/analytics/posthog/index.html.md) as the analytics provider. -- [Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/index.html.md): Caches data that require heavy computation. You can integrate a custom module to handle the caching with services like Memcached, or use the existing [Redis Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/redis/index.html.md). -- [Event Module](https://docs.medusajs.com/resources/infrastructure-modules/event/index.html.md): A pub/sub system that allows you to subscribe to events and trigger them. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/event/redis/index.html.md) as the pub/sub system. -- [File Module](https://docs.medusajs.com/resources/infrastructure-modules/file/index.html.md): Manages file uploads and storage, such as upload of product images. You can integrate [AWS S3](https://docs.medusajs.com/resources/infrastructure-modules/file/s3/index.html.md) for file storage. -- [Locking Module](https://docs.medusajs.com/resources/infrastructure-modules/locking/index.html.md): Manages access to shared resources by multiple processes or threads, preventing conflict between processes and ensuring data consistency. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/locking/redis/index.html.md) for locking. -- [Notification Module](https://docs.medusajs.com/resources/infrastructure-modules/notification/index.html.md): Sends notifications to customers and users, such as for order updates or newsletters. You can integrate [SendGrid](https://docs.medusajs.com/resources/infrastructure-modules/notification/sendgrid/index.html.md) for sending emails. -- [Workflow Engine Module](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/index.html.md): Orchestrates workflows that hold the business logic of your application. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) to orchestrate workflows. - -All of the third-party services mentioned above can be replaced to help you build your preferred architecture and ecosystem. - -![Diagram illustrating the Infrastructure Modules integration to third-party services and systems](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175342/Medusa%20Book/service-arch_ozvryw.jpg) - -*** - -## Full Diagram of Medusa's Architecture - -The following diagram illustrates Medusa's architecture including all its layers. - -![Full diagram illustrating Medusa's architecture combining all the different layers.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727174897/Medusa%20Book/architectural-diagram-full.jpg) - - -# General Medusa Application Deployment Guide - -In this document, you'll learn the general steps to deploy your Medusa application. How you apply these steps depend on your chosen hosting provider or platform. - -Find how-to guides for specific platforms in [this documentation](https://docs.medusajs.com/resources/deployment/index.html.md). - -Want Medusa to manage and maintain your infrastructure? [Sign up and learn more about Medusa Cloud](https://medusajs.com/pricing) - -Medusa Cloud is our managed services offering that makes deploying and operating Medusa applications possible without having to worry about configuring, scaling, and maintaining infrastructure. Medusa Cloud hosts your server, Admin dashboard, database, and Redis instance. - -With Medusa Cloud, you maintain full customization control as you deploy your own modules and customizations directly from GitHub: - -- Push to deploy. -- Multiple testing environments. -- Preview environments for new PRs. -- Test on production-like data. - -### Prerequisites - -- [Medusa application’s codebase hosted on GitHub repository.](https://docs.medusajs.com/learn/index.html.md) - -## What You'll Deploy - -When you deploy the Medusa application, you need to deploy the following resources: - -1. PostgreSQL database: This is the database that will hold your Medusa application's details. -2. Redis database: This is the database that will store the Medusa server's session. -3. Medusa application in [server and worker mode](https://docs.medusajs.com/learn/production/worker-mode/index.html.md), where: - - The server mode handles incoming API requests and serving the Medusa Admin dashboard. - - The worker mode handles background tasks, such as scheduled jobs and subscribers. - -So, when choosing a hosting provider, make sure it supports deploying these resources. Also, for optimal experience, the hosting provider and plan must offer at least 2GB of RAM. - -*** - -## 1. Configure Medusa Application - -### Worker Mode - -The `workerMode` configuration determines which mode the Medusa application runs in. When you deploy the Medusa application, you deploy two instances: one in server mode, and one in worker mode. - -Learn more about worker mode in the [Worker Module chapter](https://docs.medusajs.com/learn/production/worker-mode/index.html.md). - -So, add the following configuration in `medusa-config.ts`: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - projectConfig: { - // ... - workerMode: process.env.MEDUSA_WORKER_MODE as "shared" | "worker" | "server", - }, -}) -``` - -Later, you’ll set different values of the `MEDUSA_WORKER_MODE` environment variable for each Medusa application deployment or instance. - -### Configure Medusa Admin - -The Medusa Admin is served by the Medusa server application. So, you need to disable it in the worker Medusa application only. - -To disable the Medusa Admin in the worker Medusa application while keeping it enabled in the server Medusa application, add the following configuration in `medusa-config.ts`: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - admin: { - disable: process.env.DISABLE_MEDUSA_ADMIN === "true", - }, -}) -``` - -Later, you’ll set different values of the `DISABLE_MEDUSA_ADMIN` environment variable for each Medusa application instance. - -### Configure Redis URL - -The `redisUrl` configuration specifies the connection URL to Redis to store the Medusa server's session. - -Learn more in the [Medusa Configuration documentation](https://docs.medusajs.com/learn/configurations/medusa-config#redisurl/index.html.md). - -So, add the following configuration in `medusa-config.ts` : - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - projectConfig: { - // ... - redisUrl: process.env.REDIS_URL, - }, -}) -``` - -*** - -## 2. Add predeploy Script - -Before you start the Medusa application in production, you should always run migrations and sync links. - -So, add the following script in `package.json`: - -```json -"scripts": { - // ... - "predeploy": "medusa db:migrate" -}, -``` - -*** - -## 3. Install Production Modules and Providers - -By default, your Medusa application uses modules and providers useful for development, such as the In-Memory Cache Module or the Local File Module Provider. - -It’s highly recommended to instead use modules and providers suitable for production, including: - -- [Redis Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/redis/index.html.md) -- [Redis Event Bus Module](https://docs.medusajs.com/resources/infrastructure-modules/event/redis/index.html.md) -- [Workflow Engine Redis Module](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) -- [S3 File Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/file/s3/index.html.md) (or other file module providers production-ready). -- [SendGrid Notification Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/notification/sendgrid/index.html.md) (or other notification module providers production-ready). - -Then, add these modules in `medusa-config.ts`: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/cache-redis", - options: { - redisUrl: process.env.REDIS_URL, - }, - }, - { - resolve: "@medusajs/medusa/event-bus-redis", - options: { - redisUrl: process.env.REDIS_URL, - }, - }, - { - resolve: "@medusajs/medusa/workflow-engine-redis", - options: { - redis: { - url: process.env.REDIS_URL, - }, - }, - }, - ], -}) -``` - -Check out the [Integrations](https://docs.medusajs.com/resources/integrations/index.html.md) and [Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) documentation for other modules and providers to use. - -*** - -## 4. Create PostgreSQL and Redis Databases - -Your Medusa application must connect to PostgreSQL and Redis databases. So, before you deploy it, create production PostgreSQL and Redis databases. - -If your hosting provider doesn't support databases, you can use [Neon for PostgreSQL database hosting](https://neon.tech/), and [Redis Cloud for the Redis database hosting](https://redis.io/cloud/). - -After hosting both databases, keep their connection URLs for the next steps. - -*** - -## 5. Deploy Medusa Application in Server Mode - -As mentioned earlier, you'll deploy two instances or create two deployments of your Medusa application: one in server mode, and the other in worker mode. - -The deployment steps depend on your hosting provider. This section provides the general steps to perform during the deployment. - -### Set Environment Variables - -When setting the environment variables of the Medusa application, set the following variables: - -```bash -COOKIE_SECRET=supersecret # TODO GENERATE SECURE SECRET -JWT_SECRET=supersecret # TODO GENERATE SECURE SECRET -STORE_CORS= # STOREFRONT URL -ADMIN_CORS= # ADMIN URL -AUTH_CORS= # STOREFRONT AND ADMIN URLS, SEPARATED BY COMMAS -DISABLE_MEDUSA_ADMIN=false -MEDUSA_WORKER_MODE=server -PORT=9000 -DATABASE_URL= # POSTGRES DATABASE URL -REDIS_URL= # REDIS DATABASE URL -``` - -Where: - -- The value of `COOKIE_SECRET` and `JWT_SECRET` must be a randomly generated secret. -- `STORE_CORS`'s value is the URL of your storefront. If you don’t have it yet, you can skip adding it for now. -- `ADMIN_CORS`'s value is the URL of the admin dashboard, which is the same as the server Medusa application. You can add it later if you don't currently have it. -- `AUTH_CORS`'s value is the URLs of any application authenticating users, customers, or other actor types, such as the storefront and admin URLs. The URLs are separated by commas. If you don’t have the URLs yet, you can set its value later. -- Set `DISABLE_MEDUSA_ADMIN`'s value to `false` so that the admin is built with the server application. -- Set the PostgreSQL database's connection URL as the value of `DATABASE_URL` -- Set the Redis database's connection URL as the value of `REDIS_URL`. - -Feel free to add any other relevant environment variables, such as for integrations and Infrastructure Modules. If you're using environment variables in your admin customizations, make sure to set them as well, as they're inlined during the build process. - -### Set Start Command - -The Medusa application's production build, which is created using the `build` command, outputs the Medusa application to `.medusa/server`. So, you must install the dependencies in the `.medusa/server` directory, then run the `start` command in it. - -If your hosting provider doesn't support setting a current-working directory, set the start command to the following: +If you prefer using TypeScript aliases, install following development dependencies: ```bash npm2yarn -cd .medusa/server && npm install && npm run predeploy && npm run start +npm install --save-dev tsc-alias rimraf ``` -Notice that you run the `predeploy` command before starting the Medusa application to run migrations and sync links whenever there's an update. +Where `tsc-alias` is a package that resolves TypeScript aliases, and `rimraf` is a package that removes files and directories. -### Set Backend URL in Admin Configuration +Then, add a new `resolve:aliases` script to your `package.json` and update the `build` script: -The Medusa Admin is built and hosted statically. To send requests to the Medusa server application, you must set the backend URL in the Medusa Admin's configuration. +```json title="package.json" +{ + "scripts": { + // other scripts... + "resolve:aliases": "tsc --showConfig -p tsconfig.json > tsconfig.resolved.json && tsc-alias -p tsconfig.resolved.json && rimraf tsconfig.resolved.json", + "build": "medusa build && npm run resolve:aliases" + } +} +``` -After you’ve obtained the Medusa application’s URL, add the following configuration to `medusa-config.ts`: +You can now use TypeScript aliases in your Medusa application. For example, add the following in `tsconfig.json`: -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - admin: { +```json title="tsconfig.json" +{ + "compilerOptions": { // ... - backendUrl: process.env.MEDUSA_BACKEND_URL, - }, -}) + "paths": { + "@/*": ["./src/*"] + } + } +} ``` -Then, push the changes to the GitHub repository or deployed application. +Now, you can import modules, for example, using TypeScript aliases: -In your hosting provider, add or modify the following environment variables for the Medusa application in server mode: - -```bash -ADMIN_CORS= # MEDUSA APPLICATION URL -AUTH_CORS= # ADD MEDUSA APPLICATION URL -MEDUSA_BACKEND_URL= # URL TO DEPLOYED MEDUSA APPLICATION +```ts +import { BrandModuleService } from "@/modules/brand/service" ``` -Where you set the value of `ADMIN_CORS` and `MEDUSA_BACKEND_URL` to the Medusa application’s URL, and you add the URL to `AUTH_CORS`. -After setting the environment variables, make sure to restart the deployment for the changes to take effect. +# Build Custom Features -Remember to separate URLs in `AUTH_CORS` by commas. +In the upcoming chapters, you'll follow step-by-step guides to build custom features in Medusa. These guides gradually introduce Medusa's concepts to help you understand what they are and how to use them. + +By following these guides, you'll add brands to the Medusa application that you can associate with products. + +To build a custom feature in Medusa, you need three main tools: + +- [Module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md): a package with commerce logic for a single domain. It defines new tables to add to the database, and a class of methods to manage these tables. +- [Workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md): a tool to perform an operation comprising multiple steps with built-in rollback and retry mechanisms. +- [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md): a REST endpoint that exposes commerce features to clients, such as the admin dashboard or a storefront. The API route executes a workflow that implements the commerce feature using modules. + +![Diagram showcasing the flow of a custom developed feature](https://res.cloudinary.com/dza7lstvk/image/upload/v1725867628/Medusa%20Book/custom-development_nofvp6.jpg) *** -## 6. Deploy Medusa Application in Worker Mode +## Next Chapters: Brand Module Example -Next, you'll deploy the Medusa application in worker mode. +The next chapters will guide you to: -As explained in the previous section, the deployment steps depend on your hosting provider. This section provides the general steps to perform during the deployment. +1. Build a Brand Module that creates a `Brand` data model and provides data-management features. +2. Add a workflow to create a brand. +3. Expose an API route that allows admin users to create a brand using the workflow. -### Set Environment Variables -When setting the environment variables of the Medusa application, set the following variables: +# Customize Medusa Admin Dashboard -```bash -COOKIE_SECRET=supersecret # TODO GENERATE SECURE SECRET -JWT_SECRET=supersecret # TODO GENERATE SECURE SECRET -DISABLE_MEDUSA_ADMIN=true -MEDUSA_WORKER_MODE=worker -PORT=9000 -DATABASE_URL= # POSTGRES DATABASE URL -REDIS_URL= # REDIS DATABASE URL -``` +In the previous chapters, you've customized your Medusa application to [add brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md), [expose an API route to create brands](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), and [linked brands to products](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md). -Where: +After customizing and extending your application with new features, you may need to provide an interface for admin users to utilize these features. The Medusa Admin dashboard is extendable, allowing you to: -- The value of `COOKIE_SECRET` and `JWT_SECRET` must be a randomly generated secret. -- Set `DISABLE_MEDUSA_ADMIN`'s value to `true` so that the admin isn't built with the worker application. -- Set the PostgreSQL database's connection URL as the value of `DATABASE_URL` -- Set the Redis database's connection URL as the value of `REDIS_URL`. +- Insert components, called [widgets](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md), on existing pages. +- Add new pages, called [UI Routes](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md). -Feel free to add any other relevant environment variables, such as for integrations and Infrastructure Modules. - -### Set Start Command - -The Medusa application's production build, which is created using the `build` command, outputs the Medusa application to `.medusa/server`. So, you must install the dependencies in the `.medusa/server` directory, then run the `start` command in it. - -If your hosting provider doesn't support setting a current-working directory, set the start command to the following: - -```bash npm2yarn -cd .medusa/server && npm install && npm run start -``` +From these customizations, you can send requests to custom API routes, allowing admin users to manage custom resources on the dashboard *** -## 7. Test Deployed Application +## Next Chapters: View Brands in Dashboard -Once the application is deployed and live, go to `/health`, where `` is the URL of the Medusa application in server mode. If the deployment was successful, you’ll see the `OK` response. +In the next chapters, you'll continue with the brands example to: -The Medusa Admin is also available at `/app`. +- Add a new section to the product details page that shows the product's brand. +- Add a new page in the dashboard that shows all brands in the store. + + +# Extend Core Commerce Features + +In the upcoming chapters, you'll learn about the concepts and tools to extend Medusa's core commerce features. + +In other commerce platforms, you extend core features and models through hacky workarounds that can introduce unexpected issues and side effects across the platform. It also makes your application difficult to maintain and upgrade in the long run. + +The Medusa Framework and orchestration tools mitigate these issues while supporting all your customization needs: + +- [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md): Link data models of different modules without building direct dependencies, ensuring that the Medusa application integrates your modules without side effects. +- [Workflow Hooks](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md): inject custom functionalities into a workflow at predefined points, called hooks. This allows you to perform custom actions as a part of a core workflow without hacky workarounds. +- [Additional Data in API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md): Configure core API routes to accept request parameters relevant to your customizations. These parameters are passed to the underlying workflow's hooks, where you can manage your custom data as part of an existing flow. *** -## Create Admin User +## Next Chapters: Link Brands to Products Example -If your hosting provider supports running commands in your Medusa application's directory, run the following command to create an admin user: +The next chapters explain how to use the tools mentioned above with step-by-step guides. You'll continue with the [brands example from the previous chapters](https://docs.medusajs.com/learn/customization/custom-features/index.html.md) to: -```bash -npx medusa user -e admin-medusa@test.com -p supersecret -``` +- Link brands from the custom [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) to products from Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md). +- Extend the core product-creation workflow and the API route that uses it to allow setting the brand of a newly created product. +- Retrieve a product's associated brand's details. -Replace the email `admin-medusa@test.com` and password `supersecret` with the credentials you want. -You can use these credentials to log into the Medusa Admin dashboard. +# Integrate Third-Party Systems + +Commerce applications often connect to third-party systems that provide additional or specialized features. For example, you may integrate a Content-Management System (CMS) for rich content features, a payment provider to process credit-card payments, and a notification service to send emails. + +The Medusa Framework facilitates integrating these systems and orchestrating operations across them, saving you the effort of managing them yourself. You won't find those capabilities in other commerce platforms that in these scenarios become a bottleneck to building customizations and iterating quickly. + +In Medusa, you integrate a third-party system by: + +1. Creating a module whose service provides the methods to connect to and perform operations in the third-party system. +2. Building workflows that complete tasks spanning across systems. You use the module that integrates a third-party system in the workflow's steps. +3. Executing the workflows you built in an [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md), at a scheduled time, or when an event is emitted. + +*** + +## Next Chapters: Sync Brands Example + +In the previous chapters, you've [added brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) to your Medusa application. In the next chapters, you will: + +1. Integrate a dummy third-party CMS in the Brand Module. +2. Sync brands to the CMS when a brand is created. +3. Sync brands from the CMS at a daily schedule. + + +# Customizations Next Steps: Learn the Fundamentals + +The previous guides introduced Medusa's different concepts and how you can use them to customize Medusa for a realistic use case, You added brands to your application, linked them to products, customized the admin dashboard, and integrated a third-party CMS. + +The next chapters will cover each of these concepts in depth, with the different ways you can use them, their options or configurations, and more advanced features that weren't covered in the previous guides. While you can start building with Medusa, it's highly recommended to follow the next chapters for a better understanding of Medusa's fundamentals. + +## Useful Guides + +The following guides and references are useful for your development journey: + +3. [Commerce Modules](https://docs.medusajs.com/resources/commerce-modules/index.html.md): Browse the list of Commerce Modules in Medusa and their references to learn how to use them. +4. [Service Factory Reference](https://docs.medusajs.com/resources/service-factory-reference/index.html.md): Learn about the methods generated by `MedusaService` with examples. +5. [Workflows Reference](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md): Browse the list of core workflows and their hooks that are useful for your customizations. +6. [Admin Injection Zones](https://docs.medusajs.com/resources/admin-widget-injection-zones/index.html.md): Browse the injection zones in the Medusa Admin to learn where you can inject widgets. + +*** + +## More Examples in Recipes + +In the [Recipes](https://docs.medusajs.com/resources/recipes/index.html.md) documentation, you'll also find step-by-step guides for different use cases, such as building a marketplace, digital products, and more. + + +# Re-Use Customizations with Plugins + +In the previous chapters, you've learned important concepts related to creating modules, implementing commerce features in workflows, exposing those features in API routes, customizing the Medusa Admin dashboard with Admin Extensions, and integrating third-party systems. + +You've implemented the brands example within a single Medusa application. However, this approach is not scalable when you want to reuse your customizations across multiple projects. + +To reuse your customizations across multiple Medusa applications, such as implementing brands in different projects, you can create a plugin. A plugin is an NPM package that encapsulates your customizations and can be installed in any Medusa application. Plugins can include modules, workflows, API routes, Admin Extensions, and more. + +![Diagram showcasing how the Brand Plugin would add its resources to any application it's installed in](https://res.cloudinary.com/dza7lstvk/image/upload/v1737540091/Medusa%20Book/brand-plugin_bk9zi9.jpg) + +Medusa provides the tooling to create a plugin package, test it in a local Medusa application, and publish it to NPM. + +To learn more about plugins and how to create them, refer to [this chapter](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). # Configure Instrumentation @@ -2148,6 +1895,314 @@ Medusa's Testing Framework works for integration tests only. You can write unit The next chapters explain how to use the testing tools provided by `@medusajs/test-utils` to write tests. +# General Medusa Application Deployment Guide + +In this document, you'll learn the general steps to deploy your Medusa application. How you apply these steps depend on your chosen hosting provider or platform. + +Find how-to guides for specific platforms in [this documentation](https://docs.medusajs.com/resources/deployment/index.html.md). + +Want Medusa to manage and maintain your infrastructure? [Sign up and learn more about Medusa Cloud](https://medusajs.com/pricing) + +Medusa Cloud is our managed services offering that makes deploying and operating Medusa applications possible without having to worry about configuring, scaling, and maintaining infrastructure. Medusa Cloud hosts your server, Admin dashboard, database, and Redis instance. + +With Medusa Cloud, you maintain full customization control as you deploy your own modules and customizations directly from GitHub: + +- Push to deploy. +- Multiple testing environments. +- Preview environments for new PRs. +- Test on production-like data. + +### Prerequisites + +- [Medusa application’s codebase hosted on GitHub repository.](https://docs.medusajs.com/learn/index.html.md) + +## What You'll Deploy + +When you deploy the Medusa application, you need to deploy the following resources: + +1. PostgreSQL database: This is the database that will hold your Medusa application's details. +2. Redis database: This is the database that will store the Medusa server's session. +3. Medusa application in [server and worker mode](https://docs.medusajs.com/learn/production/worker-mode/index.html.md), where: + - The server mode handles incoming API requests and serving the Medusa Admin dashboard. + - The worker mode handles background tasks, such as scheduled jobs and subscribers. + +So, when choosing a hosting provider, make sure it supports deploying these resources. Also, for optimal experience, the hosting provider and plan must offer at least 2GB of RAM. + +*** + +## 1. Configure Medusa Application + +### Worker Mode + +The `workerMode` configuration determines which mode the Medusa application runs in. When you deploy the Medusa application, you deploy two instances: one in server mode, and one in worker mode. + +Learn more about worker mode in the [Worker Module chapter](https://docs.medusajs.com/learn/production/worker-mode/index.html.md). + +So, add the following configuration in `medusa-config.ts`: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + projectConfig: { + // ... + workerMode: process.env.MEDUSA_WORKER_MODE as "shared" | "worker" | "server", + }, +}) +``` + +Later, you’ll set different values of the `MEDUSA_WORKER_MODE` environment variable for each Medusa application deployment or instance. + +### Configure Medusa Admin + +The Medusa Admin is served by the Medusa server application. So, you need to disable it in the worker Medusa application only. + +To disable the Medusa Admin in the worker Medusa application while keeping it enabled in the server Medusa application, add the following configuration in `medusa-config.ts`: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + admin: { + disable: process.env.DISABLE_MEDUSA_ADMIN === "true", + }, +}) +``` + +Later, you’ll set different values of the `DISABLE_MEDUSA_ADMIN` environment variable for each Medusa application instance. + +### Configure Redis URL + +The `redisUrl` configuration specifies the connection URL to Redis to store the Medusa server's session. + +Learn more in the [Medusa Configuration documentation](https://docs.medusajs.com/learn/configurations/medusa-config#redisurl/index.html.md). + +So, add the following configuration in `medusa-config.ts` : + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + projectConfig: { + // ... + redisUrl: process.env.REDIS_URL, + }, +}) +``` + +*** + +## 2. Add predeploy Script + +Before you start the Medusa application in production, you should always run migrations and sync links. + +So, add the following script in `package.json`: + +```json +"scripts": { + // ... + "predeploy": "medusa db:migrate" +}, +``` + +*** + +## 3. Install Production Modules and Providers + +By default, your Medusa application uses modules and providers useful for development, such as the In-Memory Cache Module or the Local File Module Provider. + +It’s highly recommended to instead use modules and providers suitable for production, including: + +- [Redis Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/redis/index.html.md) +- [Redis Event Bus Module](https://docs.medusajs.com/resources/infrastructure-modules/event/redis/index.html.md) +- [Workflow Engine Redis Module](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) +- [S3 File Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/file/s3/index.html.md) (or other file module providers production-ready). +- [SendGrid Notification Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/notification/sendgrid/index.html.md) (or other notification module providers production-ready). + +Then, add these modules in `medusa-config.ts`: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/cache-redis", + options: { + redisUrl: process.env.REDIS_URL, + }, + }, + { + resolve: "@medusajs/medusa/event-bus-redis", + options: { + redisUrl: process.env.REDIS_URL, + }, + }, + { + resolve: "@medusajs/medusa/workflow-engine-redis", + options: { + redis: { + url: process.env.REDIS_URL, + }, + }, + }, + ], +}) +``` + +Check out the [Integrations](https://docs.medusajs.com/resources/integrations/index.html.md) and [Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) documentation for other modules and providers to use. + +*** + +## 4. Create PostgreSQL and Redis Databases + +Your Medusa application must connect to PostgreSQL and Redis databases. So, before you deploy it, create production PostgreSQL and Redis databases. + +If your hosting provider doesn't support databases, you can use [Neon for PostgreSQL database hosting](https://neon.tech/), and [Redis Cloud for the Redis database hosting](https://redis.io/cloud/). + +After hosting both databases, keep their connection URLs for the next steps. + +*** + +## 5. Deploy Medusa Application in Server Mode + +As mentioned earlier, you'll deploy two instances or create two deployments of your Medusa application: one in server mode, and the other in worker mode. + +The deployment steps depend on your hosting provider. This section provides the general steps to perform during the deployment. + +### Set Environment Variables + +When setting the environment variables of the Medusa application, set the following variables: + +```bash +COOKIE_SECRET=supersecret # TODO GENERATE SECURE SECRET +JWT_SECRET=supersecret # TODO GENERATE SECURE SECRET +STORE_CORS= # STOREFRONT URL +ADMIN_CORS= # ADMIN URL +AUTH_CORS= # STOREFRONT AND ADMIN URLS, SEPARATED BY COMMAS +DISABLE_MEDUSA_ADMIN=false +MEDUSA_WORKER_MODE=server +PORT=9000 +DATABASE_URL= # POSTGRES DATABASE URL +REDIS_URL= # REDIS DATABASE URL +``` + +Where: + +- The value of `COOKIE_SECRET` and `JWT_SECRET` must be a randomly generated secret. +- `STORE_CORS`'s value is the URL of your storefront. If you don’t have it yet, you can skip adding it for now. +- `ADMIN_CORS`'s value is the URL of the admin dashboard, which is the same as the server Medusa application. You can add it later if you don't currently have it. +- `AUTH_CORS`'s value is the URLs of any application authenticating users, customers, or other actor types, such as the storefront and admin URLs. The URLs are separated by commas. If you don’t have the URLs yet, you can set its value later. +- Set `DISABLE_MEDUSA_ADMIN`'s value to `false` so that the admin is built with the server application. +- Set the PostgreSQL database's connection URL as the value of `DATABASE_URL` +- Set the Redis database's connection URL as the value of `REDIS_URL`. + +Feel free to add any other relevant environment variables, such as for integrations and Infrastructure Modules. If you're using environment variables in your admin customizations, make sure to set them as well, as they're inlined during the build process. + +### Set Start Command + +The Medusa application's production build, which is created using the `build` command, outputs the Medusa application to `.medusa/server`. So, you must install the dependencies in the `.medusa/server` directory, then run the `start` command in it. + +If your hosting provider doesn't support setting a current-working directory, set the start command to the following: + +```bash npm2yarn +cd .medusa/server && npm install && npm run predeploy && npm run start +``` + +Notice that you run the `predeploy` command before starting the Medusa application to run migrations and sync links whenever there's an update. + +### Set Backend URL in Admin Configuration + +The Medusa Admin is built and hosted statically. To send requests to the Medusa server application, you must set the backend URL in the Medusa Admin's configuration. + +After you’ve obtained the Medusa application’s URL, add the following configuration to `medusa-config.ts`: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + admin: { + // ... + backendUrl: process.env.MEDUSA_BACKEND_URL, + }, +}) +``` + +Then, push the changes to the GitHub repository or deployed application. + +In your hosting provider, add or modify the following environment variables for the Medusa application in server mode: + +```bash +ADMIN_CORS= # MEDUSA APPLICATION URL +AUTH_CORS= # ADD MEDUSA APPLICATION URL +MEDUSA_BACKEND_URL= # URL TO DEPLOYED MEDUSA APPLICATION +``` + +Where you set the value of `ADMIN_CORS` and `MEDUSA_BACKEND_URL` to the Medusa application’s URL, and you add the URL to `AUTH_CORS`. + +After setting the environment variables, make sure to restart the deployment for the changes to take effect. + +Remember to separate URLs in `AUTH_CORS` by commas. + +*** + +## 6. Deploy Medusa Application in Worker Mode + +Next, you'll deploy the Medusa application in worker mode. + +As explained in the previous section, the deployment steps depend on your hosting provider. This section provides the general steps to perform during the deployment. + +### Set Environment Variables + +When setting the environment variables of the Medusa application, set the following variables: + +```bash +COOKIE_SECRET=supersecret # TODO GENERATE SECURE SECRET +JWT_SECRET=supersecret # TODO GENERATE SECURE SECRET +DISABLE_MEDUSA_ADMIN=true +MEDUSA_WORKER_MODE=worker +PORT=9000 +DATABASE_URL= # POSTGRES DATABASE URL +REDIS_URL= # REDIS DATABASE URL +``` + +Where: + +- The value of `COOKIE_SECRET` and `JWT_SECRET` must be a randomly generated secret. +- Set `DISABLE_MEDUSA_ADMIN`'s value to `true` so that the admin isn't built with the worker application. +- Set the PostgreSQL database's connection URL as the value of `DATABASE_URL` +- Set the Redis database's connection URL as the value of `REDIS_URL`. + +Feel free to add any other relevant environment variables, such as for integrations and Infrastructure Modules. + +### Set Start Command + +The Medusa application's production build, which is created using the `build` command, outputs the Medusa application to `.medusa/server`. So, you must install the dependencies in the `.medusa/server` directory, then run the `start` command in it. + +If your hosting provider doesn't support setting a current-working directory, set the start command to the following: + +```bash npm2yarn +cd .medusa/server && npm install && npm run start +``` + +*** + +## 7. Test Deployed Application + +Once the application is deployed and live, go to `/health`, where `` is the URL of the Medusa application in server mode. If the deployment was successful, you’ll see the `OK` response. + +The Medusa Admin is also available at `/app`. + +*** + +## Create Admin User + +If your hosting provider supports running commands in your Medusa application's directory, run the following command to create an admin user: + +```bash +npx medusa user -e admin-medusa@test.com -p supersecret +``` + +Replace the email `admin-medusa@test.com` and password `supersecret` with the credentials you want. + +You can use these credentials to log into the Medusa Admin dashboard. + + # Admin Development In this chapter, you'll learn about the Medusa Admin dashboard and the possible ways to customize it. @@ -2264,6 +2319,65 @@ npx medusa exec ./src/scripts/my-script.ts arg1 arg2 ``` +# API Routes + +In this chapter, you’ll learn what API Routes are and how to create them. + +## What is an API Route? + +An API Route is an endpoint. It exposes commerce features to external applications, such as storefronts, the admin dashboard, or third-party systems. + +The Medusa core application provides a set of admin and store API routes out-of-the-box. You can also create custom API routes to expose your custom functionalities. + +*** + +## How to Create an API Route? + +An API Route is created in a TypeScript or JavaScript file under the `src/api` directory of your Medusa application. The file’s name must be `route.ts` or `route.js`. + +![Example of API route in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732808645/Medusa%20Book/route-dir-overview_dqgzmk.jpg) + +Each file exports API Route handler functions for at least one HTTP method (`GET`, `POST`, `DELETE`, etc…). + +For example, to create a `GET` API Route at `/hello-world`, create the file `src/api/hello-world/route.ts` with the following content: + +```ts title="src/api/hello-world/route.ts" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "[GET] Hello world!", + }) +} +``` + +### Test API Route + +To test the API route above, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +Then, send a `GET` request to the `/hello-world` API Route: + +```bash +curl http://localhost:9000/hello-world +``` + +*** + +## When to Use API Routes + +You're exposing custom functionality to be used by a storefront, admin dashboard, or any external application. + + # Data Models In this chapter, you'll learn what a data model is and how to create a data model. @@ -2368,65 +2482,6 @@ For example, the Blog Module's service would have methods like `retrievePost` an Refer to the [Service Factory](https://docs.medusajs.com/learn/fundamentals/modules/service-factory/index.html.md) chapter to learn more about how to extend the service factory and manage data models, and refer to the [Service Factory Reference](https://docs.medusajs.com/resources/service-factory-reference/index.html.md) for the full list of generated methods and how to use them. -# API Routes - -In this chapter, you’ll learn what API Routes are and how to create them. - -## What is an API Route? - -An API Route is an endpoint. It exposes commerce features to external applications, such as storefronts, the admin dashboard, or third-party systems. - -The Medusa core application provides a set of admin and store API routes out-of-the-box. You can also create custom API routes to expose your custom functionalities. - -*** - -## How to Create an API Route? - -An API Route is created in a TypeScript or JavaScript file under the `src/api` directory of your Medusa application. The file’s name must be `route.ts` or `route.js`. - -![Example of API route in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732808645/Medusa%20Book/route-dir-overview_dqgzmk.jpg) - -Each file exports API Route handler functions for at least one HTTP method (`GET`, `POST`, `DELETE`, etc…). - -For example, to create a `GET` API Route at `/hello-world`, create the file `src/api/hello-world/route.ts` with the following content: - -```ts title="src/api/hello-world/route.ts" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "[GET] Hello world!", - }) -} -``` - -### Test API Route - -To test the API route above, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, send a `GET` request to the `/hello-world` API Route: - -```bash -curl http://localhost:9000/hello-world -``` - -*** - -## When to Use API Routes - -You're exposing custom functionality to be used by a storefront, admin dashboard, or any external application. - - # Environment Variables In this chapter, you'll learn how environment variables are loaded in Medusa. @@ -2602,156 +2657,6 @@ Medusa provides two Event Modules out of the box: Medusa's [architecture](https://docs.medusajs.com/learn/introduction/architecture/index.html.md) also allows you to build a custom Event Module that uses a different service or logic to implement the pub/sub system. Learn how to build an Event Module in [this guide](https://docs.medusajs.com/resources/infrastructure-modules/event/create/index.html.md). -# Medusa Container - -In this chapter, you’ll learn about the Medusa container and how to use it. - -## What is the Medusa Container? - -The Medusa container is a registry of Framework and commerce tools that's accessible across your application. Medusa automatically registers these tools in the container, including custom ones that you've built, so that you can use them in your customizations. - -In other platforms, if you have a resource A (for example, a class) that depends on a resource B, you have to manually add resource B to the container or specify it beforehand as A's dependency, which is often done in a file separate from A's code. This becomes difficult to manage as you maintain larger applications with many changing dependencies. - -Medusa simplifies this process by giving you access to the container, with the tools or resources already registered, at all times in your customizations. When you reach a point in your code where you need a tool, you resolve it from the container and use it. - -For example, consider you're creating an API route that retrieves products based on filters using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md), a tool that fetches data across the application. In the API route's function, you can resolve Query from the container passed to the API route and use it: - -```ts highlights={highlights} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const query = req.scope.resolve("query") - - const { data: products } = await query.graph({ - entity: "product", - fields: ["*"], - filters: { - id: "prod_123", - }, - }) - - res.json({ - products, - }) -} -``` - -The API route accepts as a first parameter a request object that has a `scope` property, which is the Medusa container. It has a `resolve` method that resolves a resource from the container by the key it's registered with. - -You can learn more about how Query works in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). - -*** - -## List of Resources Registered in the Medusa Container - -Find a full list of the registered resources and their registration key in [this reference](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) - -*** - -## How to Resolve From the Medusa Container - -This section gives quick examples of how to resolve resources from the Medusa container in customizations other than an API route, which is covered in the section above. - -### Subscriber - -A [subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) function, which is executed when an event is emitted, accepts as a parameter an object with a `container` property, whose value is the Medusa container. Use its `resolve` method to resolve a resource by its registration key: - -```ts highlights={subscriberHighlights} -import { SubscriberArgs, type SubscriberConfig } from "@medusajs/framework" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" - -export default async function productCreateHandler({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const query = container.resolve(ContainerRegistrationKeys.QUERY) - - const { data: products } = await query.graph({ - entity: "product", - fields: ["*"], - filters: { - id: data.id, - }, - }) - - console.log(`You created a product with the title ${products[0].title}`) -} - -export const config: SubscriberConfig = { - event: `product.created`, -} -``` - -### Scheduled Job - -A [scheduled job](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md) function, which is executed at a specified interval, accepts the Medusa container as a parameter. Use its `resolve` method to resolve a resource by its registration key: - -```ts highlights={scheduledJobHighlights} -import { MedusaContainer } from "@medusajs/framework/types" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" - -export default async function myCustomJob( - container: MedusaContainer -) { - const query = container.resolve(ContainerRegistrationKeys.QUERY) - - const { data: products } = await query.graph({ - entity: "product", - fields: ["*"], - filters: { - id: "prod_123", - }, - }) - - console.log( - `You have ${products.length} matching your filters.` - ) -} - -export const config = { - name: "every-minute-message", - // execute every minute - schedule: "* * * * *", -} -``` - -### Workflow Step - -A [step in a workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md), which is a special function where you build durable execution logic across multiple modules, accepts in its second parameter a `container` property, whose value is the Medusa container. Use its `resolve` method to resolve a resource by its registration key: - -```ts highlights={workflowStepsHighlight} -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" - -const step1 = createStep("step-1", async (_, { container }) => { - const query = container.resolve(ContainerRegistrationKeys.QUERY) - - const { data: products } = await query.graph({ - entity: "product", - fields: ["*"], - filters: { - id: "prod_123", - }, - }) - - return new StepResponse(products) -}) -``` - -### Module Services and Loaders - -A [module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), which is a package of functionalities for a single feature or domain, has its own container, so it can't resolve resources from the Medusa container. - -Learn more about the module's container in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md). - - # Framework Overview In this chapter, you'll learn about the Medusa Framework and how it facilitates building customizations in your Medusa application. @@ -3522,6 +3427,156 @@ To learn more about the different concepts useful for building plugins, check ou - [Plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md) +# Medusa Container + +In this chapter, you’ll learn about the Medusa container and how to use it. + +## What is the Medusa Container? + +The Medusa container is a registry of Framework and commerce tools that's accessible across your application. Medusa automatically registers these tools in the container, including custom ones that you've built, so that you can use them in your customizations. + +In other platforms, if you have a resource A (for example, a class) that depends on a resource B, you have to manually add resource B to the container or specify it beforehand as A's dependency, which is often done in a file separate from A's code. This becomes difficult to manage as you maintain larger applications with many changing dependencies. + +Medusa simplifies this process by giving you access to the container, with the tools or resources already registered, at all times in your customizations. When you reach a point in your code where you need a tool, you resolve it from the container and use it. + +For example, consider you're creating an API route that retrieves products based on filters using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md), a tool that fetches data across the application. In the API route's function, you can resolve Query from the container passed to the API route and use it: + +```ts highlights={highlights} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework" +import { ContainerRegistrationKeys } from "@medusajs/framework/utils" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const query = req.scope.resolve("query") + + const { data: products } = await query.graph({ + entity: "product", + fields: ["*"], + filters: { + id: "prod_123", + }, + }) + + res.json({ + products, + }) +} +``` + +The API route accepts as a first parameter a request object that has a `scope` property, which is the Medusa container. It has a `resolve` method that resolves a resource from the container by the key it's registered with. + +You can learn more about how Query works in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). + +*** + +## List of Resources Registered in the Medusa Container + +Find a full list of the registered resources and their registration key in [this reference](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) + +*** + +## How to Resolve From the Medusa Container + +This section gives quick examples of how to resolve resources from the Medusa container in customizations other than an API route, which is covered in the section above. + +### Subscriber + +A [subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) function, which is executed when an event is emitted, accepts as a parameter an object with a `container` property, whose value is the Medusa container. Use its `resolve` method to resolve a resource by its registration key: + +```ts highlights={subscriberHighlights} +import { SubscriberArgs, type SubscriberConfig } from "@medusajs/framework" +import { ContainerRegistrationKeys } from "@medusajs/framework/utils" + +export default async function productCreateHandler({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const query = container.resolve(ContainerRegistrationKeys.QUERY) + + const { data: products } = await query.graph({ + entity: "product", + fields: ["*"], + filters: { + id: data.id, + }, + }) + + console.log(`You created a product with the title ${products[0].title}`) +} + +export const config: SubscriberConfig = { + event: `product.created`, +} +``` + +### Scheduled Job + +A [scheduled job](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md) function, which is executed at a specified interval, accepts the Medusa container as a parameter. Use its `resolve` method to resolve a resource by its registration key: + +```ts highlights={scheduledJobHighlights} +import { MedusaContainer } from "@medusajs/framework/types" +import { ContainerRegistrationKeys } from "@medusajs/framework/utils" + +export default async function myCustomJob( + container: MedusaContainer +) { + const query = container.resolve(ContainerRegistrationKeys.QUERY) + + const { data: products } = await query.graph({ + entity: "product", + fields: ["*"], + filters: { + id: "prod_123", + }, + }) + + console.log( + `You have ${products.length} matching your filters.` + ) +} + +export const config = { + name: "every-minute-message", + // execute every minute + schedule: "* * * * *", +} +``` + +### Workflow Step + +A [step in a workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md), which is a special function where you build durable execution logic across multiple modules, accepts in its second parameter a `container` property, whose value is the Medusa container. Use its `resolve` method to resolve a resource by its registration key: + +```ts highlights={workflowStepsHighlight} +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { ContainerRegistrationKeys } from "@medusajs/framework/utils" + +const step1 = createStep("step-1", async (_, { container }) => { + const query = container.resolve(ContainerRegistrationKeys.QUERY) + + const { data: products } = await query.graph({ + entity: "product", + fields: ["*"], + filters: { + id: "prod_123", + }, + }) + + return new StepResponse(products) +}) +``` + +### Module Services and Loaders + +A [module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), which is a package of functionalities for a single feature or domain, has its own container, so it can't resolve resources from the Medusa container. + +Learn more about the module's container in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md). + + # Define Module Link In this chapter, you’ll learn what a module link is and how to define one. @@ -3775,6 +3830,100 @@ For example, in a plugin, you can define a module that integrates a third-party The next chapter explains how you can create and publish a plugin. +# Scheduled Jobs + +In this chapter, you’ll learn about scheduled jobs and how to use them. + +## What is a Scheduled Job? + +When building your commerce application, you may need to automate tasks and run them repeatedly at a specific schedule. For example, you need to automatically sync products to a third-party service once a day. + +In other commerce platforms, this feature isn't natively supported. Instead, you have to setup a separate application to execute cron jobs, which adds complexity as to how you expose this task to be executed in a cron job, or how do you debug it when it's not running within the platform's tooling. + +Medusa removes this overhead by supporting this feature natively with scheduled jobs. A scheduled job is an asynchronous function that the Medusa application runs at the interval you specify during the Medusa application's runtime. Your efforts are only spent on implementing the functionality performed by the job, such as syncing products to an ERP. + +- You want the action to execute at a specified schedule while the Medusa application **isn't** running. Instead, use the operating system's equivalent of a cron job. +- You want to execute the action once when the application loads. Use [loaders](https://docs.medusajs.com/learn/fundamentals/modules/loaders/index.html.md) instead. +- You want to execute the action if an event occurs. Use [subscribers](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) instead. + +*** + +## How to Create a Scheduled Job? + +You create a scheduled job in a TypeScript or JavaScript file under the `src/jobs` directory. The file exports the asynchronous function to run, and the configurations indicating the schedule to run the function. + +For example, create the file `src/jobs/hello-world.ts` with the following content: + +![Example of scheduled job file in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732866423/Medusa%20Book/scheduled-job-dir-overview_ediqgm.jpg) + +```ts title="src/jobs/hello-world.ts" highlights={highlights} +import { MedusaContainer } from "@medusajs/framework/types" + +export default async function greetingJob(container: MedusaContainer) { + const logger = container.resolve("logger") + + logger.info("Greeting!") +} + +export const config = { + name: "greeting-every-minute", + schedule: "* * * * *", +} +``` + +You export an asynchronous function that receives the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) as a parameter. In the function, you resolve the [Logger utility](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md) from the Medusa container and log a message. + +You also export a `config` object that has the following properties: + +- `name`: A unique name for the job. +- `schedule`: A string that holds a [cron expression](https://crontab.guru/) indicating the schedule to run the job. + +This scheduled job executes every minute and logs into the terminal `Greeting!`. + +### Test the Scheduled Job + +To test out your scheduled job, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +After a minute, the following message will be logged to the terminal: + +```bash +info: Greeting! +``` + +*** + +## Example: Sync Products Once a Day + +In this section, you'll find a brief example of how you use a scheduled job to sync products to a third-party service. + +When implementing flows spanning across systems or [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), you use [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). A workflow is a task made up of a series of steps, and you construct it like you would a regular function, but it's a special function that supports rollback mechanism in case of errors, background execution, and more. + +You can learn how to create a workflow in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md), but this example assumes you already have a `syncProductToErpWorkflow` implemented. To execute this workflow once a day, create a scheduled job at `src/jobs/sync-products.ts` with the following content: + +```ts title="src/jobs/sync-products.ts" +import { MedusaContainer } from "@medusajs/framework/types" +import { syncProductToErpWorkflow } from "../workflows/sync-products-to-erp" + +export default async function syncProductsJob(container: MedusaContainer) { + await syncProductToErpWorkflow(container) + .run() +} + +export const config = { + name: "sync-products-job", + schedule: "0 0 * * *", +} +``` + +In the scheduled job function, you execute the `syncProductToErpWorkflow` by invoking it and passing it the container, then invoking the `run` method. You also specify in the exported configurations the schedule `0 0 * * *` which indicates midnight time of every day. + +The next time you start the Medusa application, it will run this job every day at midnight. + + # Modules In this chapter, you’ll learn about modules and how to create them. @@ -4075,121 +4224,170 @@ This will create a post and return it in the response: You can also execute the workflow from a [subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) when an event occurs, or from a [scheduled job](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md) to run it at a specified interval. -# Scheduled Jobs +# Worker Mode of Medusa Instance -In this chapter, you’ll learn about scheduled jobs and how to use them. +In this chapter, you'll learn about the different modes of running a Medusa instance and how to configure the mode. -## What is a Scheduled Job? +## What is Worker Mode? -When building your commerce application, you may need to automate tasks and run them repeatedly at a specific schedule. For example, you need to automatically sync products to a third-party service once a day. +By default, the Medusa application runs both the server, which handles all incoming requests, and the worker, which processes background tasks, in a single process. While this setup is suitable for development, it is not optimal for production environments where background tasks can be long-running or resource-intensive. -In other commerce platforms, this feature isn't natively supported. Instead, you have to setup a separate application to execute cron jobs, which adds complexity as to how you expose this task to be executed in a cron job, or how do you debug it when it's not running within the platform's tooling. +In a production environment, you should deploy two separate instances of your Medusa application: -Medusa removes this overhead by supporting this feature natively with scheduled jobs. A scheduled job is an asynchronous function that the Medusa application runs at the interval you specify during the Medusa application's runtime. Your efforts are only spent on implementing the functionality performed by the job, such as syncing products to an ERP. +1. A server instance that handles incoming requests to the application's API routes. +2. A worker instance that processes background tasks. This includes scheduled jobs and subscribers. -- You want the action to execute at a specified schedule while the Medusa application **isn't** running. Instead, use the operating system's equivalent of a cron job. -- You want to execute the action once when the application loads. Use [loaders](https://docs.medusajs.com/learn/fundamentals/modules/loaders/index.html.md) instead. -- You want to execute the action if an event occurs. Use [subscribers](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) instead. +You don't need to set up different projects for each instance. Instead, you can configure the Medusa application to run in different modes based on environment variables, as you'll see later in this chapter. + +This separation ensures that the server instance remains responsive to incoming requests, while the worker instance processes tasks in the background. + +![Diagram showcasing how the server and worker work together](https://res.cloudinary.com/dza7lstvk/image/upload/fl_lossy/f_auto/r_16/ar_16:9,c_pad/v1/Medusa%20Book/medusa-worker_klkbch.jpg?_a=BATFJtAA0) *** -## How to Create a Scheduled Job? +## How to Set Worker Mode -You create a scheduled job in a TypeScript or JavaScript file under the `src/jobs` directory. The file exports the asynchronous function to run, and the configurations indicating the schedule to run the function. +You can set the worker mode of your application using the `projectConfig.workerMode` configuration in the `medusa-config.ts`. The `workerMode` configuration accepts the following values: -For example, create the file `src/jobs/hello-world.ts` with the following content: +- `shared`: (default) run the application in a single process, meaning the worker and server run in the same process. +- `worker`: run a worker process only. +- `server`: run the application server only. -![Example of scheduled job file in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732866423/Medusa%20Book/scheduled-job-dir-overview_ediqgm.jpg) +Instead of creating different projects with different worker mode configurations, you can set the worker mode using an environment variable. Then, the worker mode configuration will change based on the environment variable. -```ts title="src/jobs/hello-world.ts" highlights={highlights} -import { MedusaContainer } from "@medusajs/framework/types" +For example, set the worker mode in `medusa-config.ts` to the following: -export default async function greetingJob(container: MedusaContainer) { - const logger = container.resolve("logger") - - logger.info("Greeting!") -} - -export const config = { - name: "greeting-every-minute", - schedule: "* * * * *", -} +```ts title="medusa-config.ts" +module.exports = defineConfig({ + projectConfig: { + workerMode: process.env.WORKER_MODE || "shared", + // ... + }, + // ... +}) ``` -You export an asynchronous function that receives the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) as a parameter. In the function, you resolve the [Logger utility](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md) from the Medusa container and log a message. +You set the worker mode configuration to the `process.env.WORKER_MODE` environment variable and set a default value of `shared`. -You also export a `config` object that has the following properties: +Then, in the deployed server Medusa instance, set `WORKER_MODE` to `server`, and in the worker Medusa instance, set `WORKER_MODE` to `worker`: -- `name`: A unique name for the job. -- `schedule`: A string that holds a [cron expression](https://crontab.guru/) indicating the schedule to run the job. - -This scheduled job executes every minute and logs into the terminal `Greeting!`. - -### Test the Scheduled Job - -To test out your scheduled job, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -After a minute, the following message will be logged to the terminal: +### Server Medusa Instance ```bash -info: Greeting! +WORKER_MODE=server ``` +### Worker Medusa Instance + +```bash +WORKER_MODE=worker +``` + +### Disable Admin in Worker Mode + +Since the worker instance only processes background tasks, you should disable the admin interface in it. That will save resources in the worker instance. + +To disable the admin interface, set the `admin.disable` configuration in the `medusa-config.ts` file: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + admin: { + disable: process.env.ADMIN_DISABLED === "true" || + false, + }, + // ... +}) +``` + +Similar to before, you set the value in an environment variable, allowing you to enable or disable the admin interface based on the environment. + +Then, in the deployed server Medusa instance, set `ADMIN_DISABLED` to `false`, and in the worker Medusa instance, set `ADMIN_DISABLED` to `true`: + +### Server Medusa Instance + +```bash +ADMIN_DISABLED=false +``` + +### Worker Medusa Instance + +```bash +ADMIN_DISABLED=true +``` + + +# Medusa's Architecture + +In this chapter, you'll learn about the architectural layers in Medusa. + +Find the full architectural diagram at the [end of this chapter](#full-diagram-of-medusas-architecture). + +## HTTP, Workflow, and Module Layers + +Medusa is a headless commerce platform. So, storefronts, admin dashboards, and other clients consume Medusa's functionalities through its API routes. + +In a common Medusa application, requests go through four layers in the stack. In order of entry, those are: + +1. API Routes (HTTP): Our API Routes are the typical entry point. The Medusa server is based on Express.js, which handles incoming requests. It can also connect to a Redis database that stores the server session data. +2. Workflows: API Routes consume workflows that hold the opinionated business logic of your application. +3. Modules: Workflows use domain-specific modules for resource management. +4. Data store: Modules query the underlying datastore, which is a PostgreSQL database in common cases. + +These layers of stack can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). + +![This diagram illustrates the entry point of requests into the Medusa application through API routes. It shows a storefront and an admin that can send a request to the HTTP layer. The HTTP layer then uses workflows to handle the business logic. Finally, the workflows use modules to query and manipulate data in the data stores.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175296/Medusa%20Book/http-layer_sroafr.jpg) + *** -## Example: Sync Products Once a Day +## Database Layer -In this section, you'll find a brief example of how you use a scheduled job to sync products to a third-party service. +The Medusa application injects into each module, including your [custom modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), a connection to the configured PostgreSQL database. Modules use that connection to read and write data to the database. -When implementing flows spanning across systems or [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), you use [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). A workflow is a task made up of a series of steps, and you construct it like you would a regular function, but it's a special function that supports rollback mechanism in case of errors, background execution, and more. +Modules can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). -You can learn how to create a workflow in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md), but this example assumes you already have a `syncProductToErpWorkflow` implemented. To execute this workflow once a day, create a scheduled job at `src/jobs/sync-products.ts` with the following content: - -```ts title="src/jobs/sync-products.ts" -import { MedusaContainer } from "@medusajs/framework/types" -import { syncProductToErpWorkflow } from "../workflows/sync-products-to-erp" - -export default async function syncProductsJob(container: MedusaContainer) { - await syncProductToErpWorkflow(container) - .run() -} - -export const config = { - name: "sync-products-job", - schedule: "0 0 * * *", -} -``` - -In the scheduled job function, you execute the `syncProductToErpWorkflow` by invoking it and passing it the container, then invoking the `run` method. You also specify in the exported configurations the schedule `0 0 * * *` which indicates midnight time of every day. - -The next time you start the Medusa application, it will run this job every day at midnight. - - -# Extend Core Commerce Features - -In the upcoming chapters, you'll learn about the concepts and tools to extend Medusa's core commerce features. - -In other commerce platforms, you extend core features and models through hacky workarounds that can introduce unexpected issues and side effects across the platform. It also makes your application difficult to maintain and upgrade in the long run. - -The Medusa Framework and orchestration tools mitigate these issues while supporting all your customization needs: - -- [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md): Link data models of different modules without building direct dependencies, ensuring that the Medusa application integrates your modules without side effects. -- [Workflow Hooks](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md): inject custom functionalities into a workflow at predefined points, called hooks. This allows you to perform custom actions as a part of a core workflow without hacky workarounds. -- [Additional Data in API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md): Configure core API routes to accept request parameters relevant to your customizations. These parameters are passed to the underlying workflow's hooks, where you can manage your custom data as part of an existing flow. +![This diagram illustrates how modules connect to the database.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175379/Medusa%20Book/db-layer_pi7tix.jpg) *** -## Next Chapters: Link Brands to Products Example +## Third-Party Integrations Layer -The next chapters explain how to use the tools mentioned above with step-by-step guides. You'll continue with the [brands example from the previous chapters](https://docs.medusajs.com/learn/customization/custom-features/index.html.md) to: +Third-party services and systems are integrated through Medusa's Commerce and Infrastructure Modules. You also create custom third-party integrations through a [custom module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). -- Link brands from the custom [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) to products from Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md). -- Extend the core product-creation workflow and the API route that uses it to allow setting the brand of a newly created product. -- Retrieve a product's associated brand's details. +Modules can be implemented within [plugins](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). + +### Commerce Modules + +[Commerce Modules](https://docs.medusajs.com/resources/commerce-modules/index.html.md) integrate third-party services relevant for commerce or user-facing features. For example, you can integrate [Stripe](https://docs.medusajs.com/resources/commerce-modules/payment/payment-provider/stripe/index.html.md) through a Payment Module Provider, or [ShipStation](https://docs.medusajs.com/resources/integrations/guides/shipstation/index.html.md) through a Fulfillment Module Provider. + +You can also integrate third-party services for custom functionalities. For example, you can integrate [Sanity](https://docs.medusajs.com/resources/integrations/guides/sanity/index.html.md) for rich CMS capabilities, or [Odoo](https://docs.medusajs.com/resources/recipes/erp/odoo/index.html.md) to sync your Medusa application with your ERP system. + +You can replace any of the third-party services mentioned above to build your preferred commerce ecosystem. + +![Diagram illustrating the Commerce Modules integration to third-party services](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175357/Medusa%20Book/service-commerce_qcbdsl.jpg) + +### Infrastructure Modules + +[Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) integrate third-party services and systems that customize Medusa's infrastructure. Medusa has the following Infrastructure Modules: + +- [Analytics Module](https://docs.medusajs.com/resources/infrastructure-modules/analytics/index.html.md): Tracks and analyzes user interactions and system events with third-party analytic providers. You can integrate [PostHog](https://docs.medusajs.com/resources/infrastructure-modules/analytics/posthog/index.html.md) as the analytics provider. +- [Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/index.html.md): Caches data that require heavy computation. You can integrate a custom module to handle the caching with services like Memcached, or use the existing [Redis Cache Module](https://docs.medusajs.com/resources/infrastructure-modules/cache/redis/index.html.md). +- [Event Module](https://docs.medusajs.com/resources/infrastructure-modules/event/index.html.md): A pub/sub system that allows you to subscribe to events and trigger them. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/event/redis/index.html.md) as the pub/sub system. +- [File Module](https://docs.medusajs.com/resources/infrastructure-modules/file/index.html.md): Manages file uploads and storage, such as upload of product images. You can integrate [AWS S3](https://docs.medusajs.com/resources/infrastructure-modules/file/s3/index.html.md) for file storage. +- [Locking Module](https://docs.medusajs.com/resources/infrastructure-modules/locking/index.html.md): Manages access to shared resources by multiple processes or threads, preventing conflict between processes and ensuring data consistency. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/locking/redis/index.html.md) for locking. +- [Notification Module](https://docs.medusajs.com/resources/infrastructure-modules/notification/index.html.md): Sends notifications to customers and users, such as for order updates or newsletters. You can integrate [SendGrid](https://docs.medusajs.com/resources/infrastructure-modules/notification/sendgrid/index.html.md) for sending emails. +- [Workflow Engine Module](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/index.html.md): Orchestrates workflows that hold the business logic of your application. You can integrate [Redis](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) to orchestrate workflows. + +All of the third-party services mentioned above can be replaced to help you build your preferred architecture and ecosystem. + +![Diagram illustrating the Infrastructure Modules integration to third-party services and systems](https://res.cloudinary.com/dza7lstvk/image/upload/v1727175342/Medusa%20Book/service-arch_ozvryw.jpg) + +*** + +## Full Diagram of Medusa's Architecture + +The following diagram illustrates Medusa's architecture including all its layers. + +![Full diagram illustrating Medusa's architecture combining all the different layers.](https://res.cloudinary.com/dza7lstvk/image/upload/v1727174897/Medusa%20Book/architectural-diagram-full.jpg) # Workflows @@ -4446,112 +4644,6 @@ You can now execute this workflow in a custom API route, scheduled job, or subsc Find a full list of the registered resources in the Medusa container and their registration key in [this reference](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md). You can use these resources in your custom workflows. -# Build Custom Features - -In the upcoming chapters, you'll follow step-by-step guides to build custom features in Medusa. These guides gradually introduce Medusa's concepts to help you understand what they are and how to use them. - -By following these guides, you'll add brands to the Medusa application that you can associate with products. - -To build a custom feature in Medusa, you need three main tools: - -- [Module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md): a package with commerce logic for a single domain. It defines new tables to add to the database, and a class of methods to manage these tables. -- [Workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md): a tool to perform an operation comprising multiple steps with built-in rollback and retry mechanisms. -- [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md): a REST endpoint that exposes commerce features to clients, such as the admin dashboard or a storefront. The API route executes a workflow that implements the commerce feature using modules. - -![Diagram showcasing the flow of a custom developed feature](https://res.cloudinary.com/dza7lstvk/image/upload/v1725867628/Medusa%20Book/custom-development_nofvp6.jpg) - -*** - -## Next Chapters: Brand Module Example - -The next chapters will guide you to: - -1. Build a Brand Module that creates a `Brand` data model and provides data-management features. -2. Add a workflow to create a brand. -3. Expose an API route that allows admin users to create a brand using the workflow. - - -# Customize Medusa Admin Dashboard - -In the previous chapters, you've customized your Medusa application to [add brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md), [expose an API route to create brands](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), and [linked brands to products](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md). - -After customizing and extending your application with new features, you may need to provide an interface for admin users to utilize these features. The Medusa Admin dashboard is extendable, allowing you to: - -- Insert components, called [widgets](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md), on existing pages. -- Add new pages, called [UI Routes](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md). - -From these customizations, you can send requests to custom API routes, allowing admin users to manage custom resources on the dashboard - -*** - -## Next Chapters: View Brands in Dashboard - -In the next chapters, you'll continue with the brands example to: - -- Add a new section to the product details page that shows the product's brand. -- Add a new page in the dashboard that shows all brands in the store. - - -# Integrate Third-Party Systems - -Commerce applications often connect to third-party systems that provide additional or specialized features. For example, you may integrate a Content-Management System (CMS) for rich content features, a payment provider to process credit-card payments, and a notification service to send emails. - -The Medusa Framework facilitates integrating these systems and orchestrating operations across them, saving you the effort of managing them yourself. You won't find those capabilities in other commerce platforms that in these scenarios become a bottleneck to building customizations and iterating quickly. - -In Medusa, you integrate a third-party system by: - -1. Creating a module whose service provides the methods to connect to and perform operations in the third-party system. -2. Building workflows that complete tasks spanning across systems. You use the module that integrates a third-party system in the workflow's steps. -3. Executing the workflows you built in an [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md), at a scheduled time, or when an event is emitted. - -*** - -## Next Chapters: Sync Brands Example - -In the previous chapters, you've [added brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) to your Medusa application. In the next chapters, you will: - -1. Integrate a dummy third-party CMS in the Brand Module. -2. Sync brands to the CMS when a brand is created. -3. Sync brands from the CMS at a daily schedule. - - -# Customizations Next Steps: Learn the Fundamentals - -The previous guides introduced Medusa's different concepts and how you can use them to customize Medusa for a realistic use case, You added brands to your application, linked them to products, customized the admin dashboard, and integrated a third-party CMS. - -The next chapters will cover each of these concepts in depth, with the different ways you can use them, their options or configurations, and more advanced features that weren't covered in the previous guides. While you can start building with Medusa, it's highly recommended to follow the next chapters for a better understanding of Medusa's fundamentals. - -## Useful Guides - -The following guides and references are useful for your development journey: - -3. [Commerce Modules](https://docs.medusajs.com/resources/commerce-modules/index.html.md): Browse the list of Commerce Modules in Medusa and their references to learn how to use them. -4. [Service Factory Reference](https://docs.medusajs.com/resources/service-factory-reference/index.html.md): Learn about the methods generated by `MedusaService` with examples. -5. [Workflows Reference](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md): Browse the list of core workflows and their hooks that are useful for your customizations. -6. [Admin Injection Zones](https://docs.medusajs.com/resources/admin-widget-injection-zones/index.html.md): Browse the injection zones in the Medusa Admin to learn where you can inject widgets. - -*** - -## More Examples in Recipes - -In the [Recipes](https://docs.medusajs.com/resources/recipes/index.html.md) documentation, you'll also find step-by-step guides for different use cases, such as building a marketplace, digital products, and more. - - -# Re-Use Customizations with Plugins - -In the previous chapters, you've learned important concepts related to creating modules, implementing commerce features in workflows, exposing those features in API routes, customizing the Medusa Admin dashboard with Admin Extensions, and integrating third-party systems. - -You've implemented the brands example within a single Medusa application. However, this approach is not scalable when you want to reuse your customizations across multiple projects. - -To reuse your customizations across multiple Medusa applications, such as implementing brands in different projects, you can create a plugin. A plugin is an NPM package that encapsulates your customizations and can be installed in any Medusa application. Plugins can include modules, workflows, API routes, Admin Extensions, and more. - -![Diagram showcasing how the Brand Plugin would add its resources to any application it's installed in](https://res.cloudinary.com/dza7lstvk/image/upload/v1737540091/Medusa%20Book/brand-plugin_bk9zi9.jpg) - -Medusa provides the tooling to create a plugin package, test it in a local Medusa application, and publish it to NPM. - -To learn more about plugins and how to create them, refer to [this chapter](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md). - - # Usage Information At Medusa, we strive to provide the best experience for developers using our platform. For that reason, Medusa collects anonymous and non-sensitive data that provides a global understanding of how users are using Medusa. @@ -4642,96 +4734,2204 @@ MEDUSA_FF_ANALYTICS=false ``` -# Worker Mode of Medusa Instance +# Guide: Create Brand API Route -In this chapter, you'll learn about the different modes of running a Medusa instance and how to configure the mode. +In the previous two chapters, you created a [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) that added the concepts of brands to your application, then created a [workflow to create a brand](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). In this chapter, you'll expose an API route that allows admin users to create a brand using the workflow from the previous chapter. -## What is Worker Mode? +An API Route is an endpoint that acts as an entry point for other clients to interact with your Medusa customizations, such as the admin dashboard, storefronts, or third-party systems. -By default, the Medusa application runs both the server, which handles all incoming requests, and the worker, which processes background tasks, in a single process. While this setup is suitable for development, it is not optimal for production environments where background tasks can be long-running or resource-intensive. +The Medusa core application provides a set of [admin](https://docs.medusajs.com/api/admin) and [store](https://docs.medusajs.com/api/store) API routes out-of-the-box. You can also create custom API routes to expose your custom functionalities. -In a production environment, you should deploy two separate instances of your Medusa application: +### Prerequisites -1. A server instance that handles incoming requests to the application's API routes. -2. A worker instance that processes background tasks. This includes scheduled jobs and subscribers. +- [createBrandWorkflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) -You don't need to set up different projects for each instance. Instead, you can configure the Medusa application to run in different modes based on environment variables, as you'll see later in this chapter. +## 1. Create the API Route -This separation ensures that the server instance remains responsive to incoming requests, while the worker instance processes tasks in the background. +You create an API route in a `route.{ts,js}` file under a sub-directory of the `src/api` directory. The file exports API Route handler functions for at least one HTTP method (`GET`, `POST`, `DELETE`, etc…). -![Diagram showcasing how the server and worker work together](https://res.cloudinary.com/dza7lstvk/image/upload/fl_lossy/f_auto/r_16/ar_16:9,c_pad/v1/Medusa%20Book/medusa-worker_klkbch.jpg?_a=BATFJtAA0) +Learn more about API routes [in this guide](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md). + +The route's path is the path of `route.{ts,js}` relative to `src/api`. So, to create the API route at `/admin/brands`, create the file `src/api/admin/brands/route.ts` with the following content: + +![Directory structure of the Medusa application after adding the route](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869882/Medusa%20Book/brand-route-dir-overview-2_hjqlnf.jpg) + +```ts title="src/api/admin/brands/route.ts" +import { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { + createBrandWorkflow, +} from "../../../workflows/create-brand" + +type PostAdminCreateBrandType = { + name: string +} + +export const POST = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + const { result } = await createBrandWorkflow(req.scope) + .run({ + input: req.validatedBody, + }) + + res.json({ brand: result }) +} +``` + +You export a route handler function with its name (`POST`) being the HTTP method of the API route you're exposing. + +The function receives two parameters: a `MedusaRequest` object to access request details, and `MedusaResponse` object to return or manipulate the response. The `MedusaRequest` object's `scope` property is the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) that holds Framework tools and custom and core modules' services. + +`MedusaRequest` accepts the request body's type as a type argument. + +In the API route's handler, you execute the `createBrandWorkflow` by invoking it and passing the Medusa container `req.scope` as a parameter, then invoking its `run` method. You pass the workflow's input in the `input` property of the `run` method's parameter. You pass the request body's parameters using the `validatedBody` property of `MedusaRequest`. + +You return a JSON response with the created brand using the `res.json` method. *** -## How to Set Worker Mode +## 2. Create Validation Schema -You can set the worker mode of your application using the `projectConfig.workerMode` configuration in the `medusa-config.ts`. The `workerMode` configuration accepts the following values: +The API route you created accepts the brand's name in the request body. So, you'll create a schema used to validate incoming request body parameters. -- `shared`: (default) run the application in a single process, meaning the worker and server run in the same process. -- `worker`: run a worker process only. -- `server`: run the application server only. +Medusa uses [Zod](https://zod.dev/) to create validation schemas. These schemas are then used to validate incoming request bodies or query parameters. -Instead of creating different projects with different worker mode configurations, you can set the worker mode using an environment variable. Then, the worker mode configuration will change based on the environment variable. +Learn more about API route validation in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/validation/index.html.md). -For example, set the worker mode in `medusa-config.ts` to the following: +You create a validation schema in a TypeScript or JavaScript file under a sub-directory of the `src/api` directory. So, create the file `src/api/admin/brands/validators.ts` with the following content: + +![Directory structure of Medusa application after adding validators file](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869806/Medusa%20Book/brand-route-dir-overview-1_yfyjss.jpg) + +```ts title="src/api/admin/brands/validators.ts" +import { z } from "zod" + +export const PostAdminCreateBrand = z.object({ + name: z.string(), +}) +``` + +You export a validation schema that expects in the request body an object having a `name` property whose value is a string. + +You can then replace `PostAdminCreateBrandType` in `src/api/admin/brands/route.ts` with the following: + +```ts title="src/api/admin/brands/route.ts" +// ... +import { z } from "zod" +import { PostAdminCreateBrand } from "./validators" + +type PostAdminCreateBrandType = z.infer + +// ... +``` + +*** + +## 3. Add Validation Middleware + +A middleware is a function executed before the route handler when a request is sent to an API Route. It's useful to guard API routes, parse custom request body types, and apply validation on an API route. + +Learn more about middlewares in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). + +Medusa provides a `validateAndTransformBody` middleware that accepts a Zod validation schema and returns a response error if a request is sent with body parameters that don't satisfy the validation schema. + +Middlewares are defined in the special file `src/api/middlewares.ts`. So, to add the validation middleware on the API route you created in the previous step, create the file `src/api/middlewares.ts` with the following content: + +![Directory structure of the Medusa application after adding the middleware](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869977/Medusa%20Book/brand-route-dir-overview-3_kcx511.jpg) + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + validateAndTransformBody, +} from "@medusajs/framework/http" +import { PostAdminCreateBrand } from "./admin/brands/validators" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/admin/brands", + method: "POST", + middlewares: [ + validateAndTransformBody(PostAdminCreateBrand), + ], + }, + ], +}) +``` + +You define the middlewares using the `defineMiddlewares` function and export its returned value. The function accepts an object having a `routes` property, which is an array of middleware objects. + +In the middleware object, you define three properties: + +- `matcher`: a string or regular expression indicating the API route path to apply the middleware on. You pass the create brand's route `/admin/brand`. +- `method`: The HTTP method to restrict the middleware to, which is `POST`. +- `middlewares`: An array of middlewares to apply on the route. You pass the `validateAndTransformBody` middleware, passing it the Zod schema you created earlier. + +The Medusa application will now validate the body parameters of `POST` requests sent to `/admin/brands` to ensure they match the Zod validation schema. If not, an error is returned in the response specifying the issues to fix in the request body. + +*** + +## Test API Route + +To test out the API route, start the Medusa application with the following command: + +```bash npm2yarn +npm run dev +``` + +Since the `/admin/brands` API route has a `/admin` prefix, it's only accessible by authenticated admin users. + +So, to retrieve an authenticated token of your admin user, send a `POST` request to the `/auth/user/emailpass` API Route: + +```bash +curl -X POST 'http://localhost:9000/auth/user/emailpass' \ +-H 'Content-Type: application/json' \ +--data-raw '{ + "email": "admin@medusa-test.com", + "password": "supersecret" +}' +``` + +Make sure to replace the email and password with your admin user's credentials. + +Don't have an admin user? Refer to [this guide](https://docs.medusajs.com/learn/installation#create-medusa-admin-user/index.html.md). + +Then, send a `POST` request to `/admin/brands`, passing the token received from the previous request in the `Authorization` header: + +```bash +curl -X POST 'http://localhost:9000/admin/brands' \ +-H 'Content-Type: application/json' \ +-H 'Authorization: Bearer {token}' \ +--data '{ + "name": "Acme" +}' +``` + +This returns the created brand in the response: + +```json title="Example Response" +{ + "brand": { + "id": "01J7AX9ES4X113HKY6C681KDZJ", + "name": "Acme", + "created_at": "2024-09-09T08:09:34.244Z", + "updated_at": "2024-09-09T08:09:34.244Z" + } +} +``` + +*** + +## Summary + +By following the previous example chapters, you implemented a custom feature that allows admin users to create a brand. You did that by: + +1. Creating a module that defines and manages a `brand` table in the database. +2. Creating a workflow that uses the module's service to create a brand record, and implements the compensation logic to delete that brand in case an error occurs. +3. Creating an API route that allows admin users to create a brand. + +*** + +## Next Steps: Associate Brand with Product + +Now that you have brands in your Medusa application, you want to associate a brand with a product, which is defined in the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md). + +In the next chapters, you'll learn how to build associations between data models defined in different modules. + + +# Guide: Implement Brand Module + +In this chapter, you'll build a Brand Module that adds a `brand` table to the database and provides data-management features for it. + +A module is a reusable package of functionalities related to a single domain or integration. Medusa comes with multiple pre-built modules for core commerce needs, such as the [Cart Module](https://docs.medusajs.com/resources/commerce-modules/cart/index.html.md) that holds the data models and business logic for cart operations. + +In a module, you create data models and business logic to manage them. In the next chapters, you'll see how you use the module to build commerce features. + +![Diagram showcasing an overview of the Brand Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1746546820/Medusa%20Resources/brand-module_pg86gm.jpg) + +Learn more about modules in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). + +## 1. Create Module Directory + +Modules are created in a sub-directory of `src/modules`. So, start by creating the directory `src/modules/brand` that will hold the Brand Module's files. + +![Directory structure in Medusa project after adding the brand directory](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868844/Medusa%20Book/brand-dir-overview-1_hxwvgx.jpg) + +*** + +## 2. Create Data Model + +A data model represents a table in the database. You create data models using Medusa's Data Model Language (DML). It simplifies defining a table's columns, relations, and indexes with straightforward methods and configurations. + +Learn more about data models in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#1-create-data-model/index.html.md). + +You create a data model in a TypeScript or JavaScript file under the `models` directory of a module. So, to create a data model that represents a new `brand` table in the database, create the file `src/modules/brand/models/brand.ts` with the following content: + +![Directory structure in module after adding the brand data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868920/Medusa%20Book/brand-dir-overview-2_lexhdl.jpg) + +```ts title="src/modules/brand/models/brand.ts" +import { model } from "@medusajs/framework/utils" + +export const Brand = model.define("brand", { + id: model.id().primaryKey(), + name: model.text(), +}) +``` + +You create a `Brand` data model which has an `id` primary key property, and a `name` text property. + +You define the data model using the `define` method of the DML. It accepts two parameters: + +1. The first one is the name of the data model's table in the database. Use snake-case names. +2. The second is an object, which is the data model's schema. + +Learn about other property types in [this chapter](https://docs.medusajs.com/learn/fundamentals/data-models/properties/index.html.md). + +*** + +## 3. Create Module Service + +You perform database operations on your data models in a service, which is a class exported by the module and acts like an interface to its functionalities. + +In this step, you'll create the Brand Module's service that provides methods to manage the `Brand` data model. In the next chapters, you'll use this service when exposing custom features that involve managing brands. + +Learn more about services in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#2-create-service/index.html.md). + +You define a service in a `service.ts` or `service.js` file at the root of your module's directory. So, create the file `src/modules/brand/service.ts` with the following content: + +![Directory structure in module after adding the service](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868984/Medusa%20Book/brand-dir-overview-3_jo7baj.jpg) + +```ts title="src/modules/brand/service.ts" highlights={serviceHighlights} +import { MedusaService } from "@medusajs/framework/utils" +import { Brand } from "./models/brand" + +class BrandModuleService extends MedusaService({ + Brand, +}) { + +} + +export default BrandModuleService +``` + +The `BrandModuleService` extends a class returned by `MedusaService` from the Modules SDK. This function generates a class with data-management methods for your module's data models. + +The `MedusaService` function receives an object of the module's data models as a parameter, and generates methods to manage those data models. So, the `BrandModuleService` now has methods like `createBrands` and `retrieveBrand` to manage the `Brand` data model. + +You'll use these methods in the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). + +Find a reference of all generated methods in [this guide](https://docs.medusajs.com/resources/service-factory-reference/index.html.md). + +*** + +## 4. Export Module Definition + +A module must export a definition that tells Medusa the name of the module and its main service. This definition is exported in an `index.ts` file at the module's root directory. + +So, to export the Brand Module's definition, create the file `src/modules/brand/index.ts` with the following content: + +![Directory structure in module after adding the definition file](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869045/Medusa%20Book/brand-dir-overview-4_nf8ymw.jpg) + +```ts title="src/modules/brand/index.ts" +import { Module } from "@medusajs/framework/utils" +import BrandModuleService from "./service" + +export const BRAND_MODULE = "brand" + +export default Module(BRAND_MODULE, { + service: BrandModuleService, +}) +``` + +You use `Module` from the Modules SDK to create the module's definition. It accepts two parameters: + +1. The module's name (`brand`). You'll use this name when you use this module in other customizations. +2. An object with a required property `service` indicating the module's main service. + +You export `BRAND_MODULE` to reference the module's name more reliably in other customizations. + +*** + +## 5. Add Module to Medusa's Configurations + +To start using your module, you must add it to Medusa's configurations in `medusa-config.ts`. + +The object passed to `defineConfig` in `medusa-config.ts` accepts a `modules` property, whose value is an array of modules to add to the application. So, add the following in `medusa-config.ts`: ```ts title="medusa-config.ts" module.exports = defineConfig({ - projectConfig: { - workerMode: process.env.WORKER_MODE || "shared", + // ... + modules: [ + { + resolve: "./src/modules/brand", + }, + ], +}) +``` + +The Brand Module is now added to your Medusa application. You'll start using it in the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). + +*** + +## 6. Generate and Run Migrations + +A migration is a TypeScript or JavaScript file that defines database changes made by a module. Migrations ensure that your module is re-usable and removes friction when working in a team, making it easy to reflect changes across team members' databases. + +Learn more about migrations in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#5-generate-migrations/index.html.md). + +[Medusa's CLI tool](https://docs.medusajs.com/resources/medusa-cli/index.html.md) allows you to generate migration files for your module, then run those migrations to reflect the changes in the database. So, run the following commands in your Medusa application's directory: + +```bash +npx medusa db:generate brand +npx medusa db:migrate +``` + +The `db:generate` command accepts as an argument the name of the module to generate the migrations for, and the `db:migrate` command runs all migrations that haven't been run yet in the Medusa application. + +*** + +## Next Step: Create Brand Workflow + +The Brand Module now creates a `brand` table in the database and provides a class to manage its records. + +In the next chapter, you'll implement the functionality to create a brand in a workflow. You'll then use that workflow in a later chapter to expose an endpoint that allows admin users to create a brand. + + +# Guide: Create Brand Workflow + +This chapter builds on the work from the [previous chapter](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) where you created a Brand Module. + +After adding custom modules to your application, you build commerce features around them using workflows. A workflow is a series of queries and actions, called steps, that complete a task spanning across modules. You construct a workflow similar to a regular function, but it's a special function that allows you to define roll-back logic, retry configurations, and more advanced features. + +The workflow you'll create in this chapter will use the Brand Module's service to implement the feature of creating a brand. In the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), you'll expose an API route that allows admin users to create a brand, and you'll use this workflow in the route's implementation. + +Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). + +### Prerequisites + +- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) + +*** + +## 1. Create createBrandStep + +A workflow consists of a series of steps, each step created in a TypeScript or JavaScript file under the `src/workflows` directory. A step is defined using `createStep` from the Workflows SDK + +The workflow you're creating in this guide has one step to create the brand. So, create the file `src/workflows/create-brand.ts` with the following content: + +![Directory structure in the Medusa project after adding the file for createBrandStep](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869184/Medusa%20Book/brand-workflow-dir-overview-1_fjvf5j.jpg) + +```ts title="src/workflows/create-brand.ts" +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { BRAND_MODULE } from "../modules/brand" +import BrandModuleService from "../modules/brand/service" + +export type CreateBrandStepInput = { + name: string +} + +export const createBrandStep = createStep( + "create-brand-step", + async (input: CreateBrandStepInput, { container }) => { + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + const brand = await brandModuleService.createBrands(input) + + return new StepResponse(brand, brand.id) + } +) +``` + +You create a `createBrandStep` using the `createStep` function. It accepts the step's unique name as a first parameter, and the step's function as a second parameter. + +The step function receives two parameters: input passed to the step when it's invoked, and an object of general context and configurations. This object has a `container` property, which is the Medusa container. + +The [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) is a registry of Framework and commerce tools accessible in your customizations, such as a workflow's step. The Medusa application registers the services of core and custom modules in the container, allowing you to resolve and use them. + +So, In the step function, you use the Medusa container to resolve the Brand Module's service and use its generated `createBrands` method, which accepts an object of brands to create. + +Learn more about the generated `create` method's usage in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/create/index.html.md). + +A step must return an instance of `StepResponse`. Its first parameter is the data returned by the step, and the second is the data passed to the compensation function, which you'll learn about next. + +### Add Compensation Function to Step + +You define for each step a compensation function that's executed when an error occurs in the workflow. The compensation function defines the logic to roll-back the changes made by the step. This ensures your data remains consistent if an error occurs, which is especially useful when you integrate third-party services. + +Learn more about the compensation function in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). + +To add a compensation function to the `createBrandStep`, pass it as a third parameter to `createStep`: + +```ts title="src/workflows/create-brand.ts" +export const createBrandStep = createStep( + // ... + async (id: string, { container }) => { + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + await brandModuleService.deleteBrands(id) + } +) +``` + +The compensation function's first parameter is the brand's ID which you passed as a second parameter to the step function's returned `StepResponse`. It also accepts a context object with a `container` property as a second parameter, similar to the step function. + +In the compensation function, you resolve the Brand Module's service from the Medusa container, then use its generated `deleteBrands` method to delete the brand created by the step. This method accepts the ID of the brand to delete. + +Learn more about the generated `delete` method's usage in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/delete/index.html.md). + +So, if an error occurs during the workflow's execution, the brand that was created by the step is deleted to maintain data consistency. + +*** + +## 2. Create createBrandWorkflow + +You can now create the workflow that runs the `createBrandStep`. A workflow is created in a TypeScript or JavaScript file under the `src/workflows` directory. In the file, you use `createWorkflow` from the Workflows SDK to create the workflow. + +Add the following content in the same `src/workflows/create-brand.ts` file: + +```ts title="src/workflows/create-brand.ts" +// other imports... +import { + // ... + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +// ... + +type CreateBrandWorkflowInput = { + name: string +} + +export const createBrandWorkflow = createWorkflow( + "create-brand", + (input: CreateBrandWorkflowInput) => { + const brand = createBrandStep(input) + + return new WorkflowResponse(brand) + } +) +``` + +You create the `createBrandWorkflow` using the `createWorkflow` function. This function accepts two parameters: the workflow's unique name, and the workflow's constructor function holding the workflow's implementation. + +The constructor function accepts the workflow's input as a parameter. In the function, you invoke the `createBrandStep` you created in the previous step to create a brand. + +A workflow must return an instance of `WorkflowResponse`. It accepts as a parameter the data to return to the workflow's executor. + +*** + +## Next Steps: Expose Create Brand API Route + +You now have a `createBrandWorkflow` that you can execute to create a brand. + +In the next chapter, you'll add an API route that allows admin users to create a brand. You'll learn how to create the API route, and execute in it the workflow you implemented in this chapter. + + +# Create Brands UI Route in Admin + +In this chapter, you'll add a UI route to the admin dashboard that shows all [brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) in a new page. You'll retrieve the brands from the server and display them in a table with pagination. + +### Prerequisites + +- [Brands Module](https://docs.medusajs.com/learn/customization/custom-features/modules/index.html.md) + +## 1. Get Brands API Route + +In a [previous chapter](https://docs.medusajs.com/learn/customization/extend-features/query-linked-records/index.html.md), you learned how to add an API route that retrieves brands and their products using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). You'll expand that API route to support pagination, so that on the admin dashboard you can show the brands in a paginated table. + +Replace or create the `GET` API route at `src/api/admin/brands/route.ts` with the following: + +```ts title="src/api/admin/brands/route.ts" highlights={apiRouteHighlights} +// other imports... +import { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + const query = req.scope.resolve("query") + + const { + data: brands, + metadata: { count, take, skip } = {}, + } = await query.graph({ + entity: "brand", + ...req.queryConfig, + }) + + res.json({ + brands, + count, + limit: take, + offset: skip, + }) +} +``` + +In the API route, you use Query's `graph` method to retrieve the brands. In the method's object parameter, you spread the `queryConfig` property of the request object. This property holds configurations for pagination and retrieved fields. + +The query configurations are combined from default configurations, which you'll add next, and the request's query parameters: + +- `fields`: The fields to retrieve in the brands. +- `limit`: The maximum number of items to retrieve. +- `offset`: The number of items to skip before retrieving the returned items. + +When you pass pagination configurations to the `graph` method, the returned object has the pagination's details in a `metadata` property, whose value is an object having the following properties: + +- `count`: The total count of items. +- `take`: The maximum number of items returned in the `data` array. +- `skip`: The number of items skipped before retrieving the returned items. + +You return in the response the retrieved brands and the pagination configurations. + +Learn more about pagination with Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-pagination/index.html.md). + +*** + +## 2. Add Default Query Configurations + +Next, you'll set the default query configurations of the above API route and allow passing query parameters to change the configurations. + +Medusa provides a `validateAndTransformQuery` middleware that validates the accepted query parameters for a request and sets the default Query configuration. So, in `src/api/middlewares.ts`, add a new middleware configuration object: + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + validateAndTransformQuery, +} from "@medusajs/framework/http" +import { createFindParams } from "@medusajs/medusa/api/utils/validators" +// other imports... + +export const GetBrandsSchema = createFindParams() + +export default defineMiddlewares({ + routes: [ // ... - }, - // ... + { + matcher: "/admin/brands", + method: "GET", + middlewares: [ + validateAndTransformQuery( + GetBrandsSchema, + { + defaults: [ + "id", + "name", + "products.*", + ], + isList: true, + } + ), + ], + }, + + ], }) ``` -You set the worker mode configuration to the `process.env.WORKER_MODE` environment variable and set a default value of `shared`. +You apply the `validateAndTransformQuery` middleware on the `GET /admin/brands` API route. The middleware accepts two parameters: -Then, in the deployed server Medusa instance, set `WORKER_MODE` to `server`, and in the worker Medusa instance, set `WORKER_MODE` to `worker`: +- A [Zod](https://zod.dev/) schema that a request's query parameters must satisfy. Medusa provides `createFindParams` that generates a Zod schema with the following properties: + - `fields`: A comma-separated string indicating the fields to retrieve. + - `limit`: The maximum number of items to retrieve. + - `offset`: The number of items to skip before retrieving the returned items. + - `order`: The name of the field to sort the items by. Learn more about sorting in [the API reference](https://docs.medusajs.com/api/admin#sort-order) +- An object of Query configurations having the following properties: + - `defaults`: An array of default fields and relations to retrieve. + - `isList`: Whether the API route returns a list of items. -### Server Medusa Instance +By applying the above middleware, you can pass pagination configurations to `GET /admin/brands`, which will return a paginated list of brands. You'll see how it works when you create the UI route. -```bash -WORKER_MODE=server +Learn more about using the `validateAndTransformQuery` middleware to configure Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query#request-query-configurations/index.html.md). + +*** + +## 3. Initialize JS SDK + +In your custom UI route, you'll retrieve the brands by sending a request to the Medusa server. Medusa has a [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) that simplifies sending requests to the core API route. + +If you didn't follow the [previous chapter](https://docs.medusajs.com/learn/customization/customize-admin/widget/index.html.md), create the file `src/admin/lib/sdk.ts` with the following content: + +![The directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414606/Medusa%20Book/brands-admin-dir-overview-1_jleg0t.jpg) + +```ts title="src/admin/lib/sdk.ts" +import Medusa from "@medusajs/js-sdk" + +export const sdk = new Medusa({ + baseUrl: import.meta.env.VITE_BACKEND_URL || "/", + debug: import.meta.env.DEV, + auth: { + type: "session", + }, +}) ``` -### Worker Medusa Instance +You initialize the SDK passing it the following options: -```bash -WORKER_MODE=worker +- `baseUrl`: The URL to the Medusa server. +- `debug`: Whether to enable logging debug messages. This should only be enabled in development. +- `auth.type`: The authentication method used in the client application, which is `session` in the Medusa Admin dashboard. + +Notice that you use `import.meta.env` to access environment variables in your customizations because the Medusa Admin is built on top of Vite. Learn more in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md). + +You can now use the SDK to send requests to the Medusa server. + +Learn more about the JS SDK and its options in [this reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). + +*** + +## 4. Add a UI Route to Show Brands + +You'll now add the UI route that shows the paginated list of brands. A UI route is a React component created in a `page.tsx` file under a sub-directory of `src/admin/routes`. The file's path relative to src/admin/routes determines its path in the dashboard. + +Learn more about UI routes in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md). + +So, to add the UI route at the `localhost:9000/app/brands` path, create the file `src/admin/routes/brands/page.tsx` with the following content: + +![Directory structure of the Medusa application after adding the UI route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733472011/Medusa%20Book/brands-admin-dir-overview-3_syytld.jpg) + +```tsx title="src/admin/routes/brands/page.tsx" highlights={uiRouteHighlights} +import { defineRouteConfig } from "@medusajs/admin-sdk" +import { TagSolid } from "@medusajs/icons" +import { + Container, +} from "@medusajs/ui" +import { useQuery } from "@tanstack/react-query" +import { sdk } from "../../lib/sdk" +import { useMemo, useState } from "react" + +const BrandsPage = () => { + // TODO retrieve brands + + return ( + + {/* TODO show brands */} + + ) +} + +export const config = defineRouteConfig({ + label: "Brands", + icon: TagSolid, +}) + +export default BrandsPage ``` -### Disable Admin in Worker Mode +A route's file must export the React component that will be rendered in the new page. It must be the default export of the file. You can also export configurations that add a link in the sidebar for the UI route. You create these configurations using `defineRouteConfig` from the Admin Extension SDK. -Since the worker instance only processes background tasks, you should disable the admin interface in it. That will save resources in the worker instance. +So far, you only show a container. In admin customizations, use components from the [Medusa UI package](https://docs.medusajs.com/ui/index.html.md) to maintain a consistent user interface and design in the dashboard. -To disable the admin interface, set the `admin.disable` configuration in the `medusa-config.ts` file: +### Retrieve Brands From API Route + +You'll now update the UI route to retrieve the brands from the API route you added earlier. + +First, add the following type in `src/admin/routes/brands/page.tsx`: + +```tsx title="src/admin/routes/brands/page.tsx" +type Brand = { + id: string + name: string +} +type BrandsResponse = { + brands: Brand[] + count: number + limit: number + offset: number +} +``` + +You define the type for a brand, and the type of expected response from the `GET /admin/brands` API route. + +To display the brands, you'll use Medusa UI's [DataTable](https://docs.medusajs.com/ui/components/data-table/index.html.md) component. So, add the following imports in `src/admin/routes/brands/page.tsx`: + +```tsx title="src/admin/routes/brands/page.tsx" +import { + // ... + Heading, + createDataTableColumnHelper, + DataTable, + DataTablePaginationState, + useDataTable, +} from "@medusajs/ui" +``` + +You import the `DataTable` component and the following utilities: + +- `createDataTableColumnHelper`: A utility to create columns for the data table. +- `DataTablePaginationState`: A type that holds the pagination state of the data table. +- `useDataTable`: A hook to initialize and configure the data table. + +You also import the `Heading` component to show a heading above the data table. + +Next, you'll define the table's columns. Add the following before the `BrandsPage` component: + +```tsx title="src/admin/routes/brands/page.tsx" +const columnHelper = createDataTableColumnHelper() + +const columns = [ + columnHelper.accessor("id", { + header: "ID", + }), + columnHelper.accessor("name", { + header: "Name", + }), +] +``` + +You use the `createDataTableColumnHelper` utility to create columns for the data table. You define two columns for the ID and name of the brands. + +Then, replace the `// TODO retrieve brands` in the component with the following: + +```tsx title="src/admin/routes/brands/page.tsx" highlights={queryHighlights} +const limit = 15 +const [pagination, setPagination] = useState({ + pageSize: limit, + pageIndex: 0, +}) +const offset = useMemo(() => { + return pagination.pageIndex * limit +}, [pagination]) + +const { data, isLoading } = useQuery({ + queryFn: () => sdk.client.fetch(`/admin/brands`, { + query: { + limit, + offset, + }, + }), + queryKey: [["brands", limit, offset]], +}) + +// TODO configure data table +``` + +To enable pagination in the `DataTable` component, you need to define a state variable of type `DataTablePaginationState`. It's an object having the following properties: + +- `pageSize`: The maximum number of items per page. You set it to `15`. +- `pageIndex`: A zero-based index of the current page of items. + +You also define a memoized `offset` value that indicates the number of items to skip before retrieving the current page's items. + +Then, you use `useQuery` from [Tanstack (React) Query](https://tanstack.com/query/latest) to query the Medusa server. Tanstack Query provides features like asynchronous state management and optimized caching. + +Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. + +In the `queryFn` function that executes the query, you use the JS SDK's `client.fetch` method to send a request to your custom API route. The first parameter is the route's path, and the second is an object of request configuration and data. You pass the query parameters in the `query` property. + +This sends a request to the [Get Brands API route](#1-get-brands-api-route), passing the pagination query parameters. Whenever `currentPage` is updated, the `offset` is also updated, which will send a new request to retrieve the brands for the current page. + +### Display Brands Table + +Finally, you'll display the brands in a data table. Replace the `// TODO configure data table` in the component with the following: + +```tsx title="src/admin/routes/brands/page.tsx" +const table = useDataTable({ + columns, + data: data?.brands || [], + getRowId: (row) => row.id, + rowCount: data?.count || 0, + isLoading, + pagination: { + state: pagination, + onPaginationChange: setPagination, + }, +}) +``` + +You use the `useDataTable` hook to initialize and configure the data table. It accepts an object with the following properties: + +- `columns`: The columns of the data table. You created them using the `createDataTableColumnHelper` utility. +- `data`: The brands to display in the table. +- `getRowId`: A function that returns a unique identifier for a row. +- `rowCount`: The total count of items. This is used to determine the number of pages. +- `isLoading`: A boolean indicating whether the data is loading. +- `pagination`: An object to configure pagination. It accepts the following properties: + - `state`: The pagination state of the data table. + - `onPaginationChange`: A function to update the pagination state. + +Then, replace the `{/* TODO show brands */}` in the return statement with the following: + +```tsx title="src/admin/routes/brands/page.tsx" + + + Brands + + + + +``` + +This renders the data table that shows the brands with pagination. The `DataTable` component accepts the `instance` prop, which is the object returned by the `useDataTable` hook. + +*** + +## Test it Out + +To test out the UI route, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +Then, open the admin dashboard at `http://localhost:9000/app`. After you log in, you'll find a new "Brands" sidebar item. Click on it to see the brands in your store. You can also go to `http://localhost:9000/app/brands` to see the page. + +![A new sidebar item is added for the new brands UI route. The UI route shows the table of brands with pagination.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733421074/Medusa%20Book/Screenshot_2024-12-05_at_7.46.52_PM_slcdqd.png) + +*** + +## Summary + +By following the previous chapters, you: + +- Injected a widget into the product details page to show the product's brand. +- Created a UI route in the Medusa Admin that shows the list of brands. + +*** + +## Next Steps: Integrate Third-Party Systems + +Your customizations often span across systems, where you need to retrieve data or perform operations in a third-party system. + +In the next chapters, you'll learn about the concepts that facilitate integrating third-party systems in your application. You'll integrate a dummy third-party system and sync the brands between it and the Medusa application. + + +# Guide: Add Product's Brand Widget in Admin + +In this chapter, you'll customize the product details page of the Medusa Admin dashboard to show the product's [brand](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md). You'll create a widget that is injected into a pre-defined zone in the page, and in the widget you'll retrieve the product's brand from the server and display it. + +### Prerequisites + +- [Brands linked to products](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) + +## 1. Initialize JS SDK + +In your custom widget, you'll retrieve the product's brand by sending a request to the Medusa server. Medusa has a [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) that simplifies sending requests to the server's API routes. + +So, you'll start by configuring the JS SDK. Create the file `src/admin/lib/sdk.ts` with the following content: + +![The directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414606/Medusa%20Book/brands-admin-dir-overview-1_jleg0t.jpg) + +```ts title="src/admin/lib/sdk.ts" +import Medusa from "@medusajs/js-sdk" + +export const sdk = new Medusa({ + baseUrl: import.meta.env.VITE_BACKEND_URL || "/", + debug: import.meta.env.DEV, + auth: { + type: "session", + }, +}) +``` + +You initialize the SDK passing it the following options: + +- `baseUrl`: The URL to the Medusa server. +- `debug`: Whether to enable logging debug messages. This should only be enabled in development. +- `auth.type`: The authentication method used in the client application, which is `session` in the Medusa Admin dashboard. + +Notice that you use `import.meta.env` to access environment variables in your customizations because the Medusa Admin is built on top of Vite. Learn more in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md). + +You can now use the SDK to send requests to the Medusa server. + +Learn more about the JS SDK and its options in [this reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). + +*** + +## 2. Add Widget to Product Details Page + +You'll now add a widget to the product-details page. A widget is a React component that's injected into pre-defined zones in the Medusa Admin dashboard. It's created in a `.tsx` file under the `src/admin/widgets` directory. + +Learn more about widgets in [this documentation](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md). + +To create a widget that shows a product's brand in its details page, create the file `src/admin/widgets/product-brand.tsx` with the following content: + +![Directory structure of the Medusa application after adding the widget](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414684/Medusa%20Book/brands-admin-dir-overview-2_eq5xhi.jpg) + +```tsx title="src/admin/widgets/product-brand.tsx" highlights={highlights} +import { defineWidgetConfig } from "@medusajs/admin-sdk" +import { DetailWidgetProps, AdminProduct } from "@medusajs/framework/types" +import { clx, Container, Heading, Text } from "@medusajs/ui" +import { useQuery } from "@tanstack/react-query" +import { sdk } from "../lib/sdk" + +type AdminProductBrand = AdminProduct & { + brand?: { + id: string + name: string + } +} + +const ProductBrandWidget = ({ + data: product, +}: DetailWidgetProps) => { + const { data: queryResult } = useQuery({ + queryFn: () => sdk.admin.product.retrieve(product.id, { + fields: "+brand.*", + }), + queryKey: [["product", product.id]], + }) + const brandName = (queryResult?.product as AdminProductBrand)?.brand?.name + + return ( + +
+
+ Brand +
+
+
+ + Name + + + + {brandName || "-"} + +
+ + ) +} + +export const config = defineWidgetConfig({ + zone: "product.details.before", +}) + +export default ProductBrandWidget +``` + +A widget's file must export: + +- A React component to be rendered in the specified injection zone. The component must be the file's default export. +- A configuration object created with `defineWidgetConfig` from the Admin Extension SDK. The function receives an object as a parameter that has a `zone` property, whose value is the zone to inject the widget to. + +Since the widget is injected at the top of the product details page, the widget receives the product's details as a parameter. + +In the widget, you use [Tanstack (React) Query](https://tanstack.com/query/latest) to query the Medusa server. Tanstack Query provides features like asynchronous state management and optimized caching. In the `queryFn` function that executes the query, you use the JS SDK to send a request to the [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid), passing `+brand.*` in the `fields` query parameter to retrieve the product's brand. + +Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. + +You then render a section that shows the brand's name. In admin customizations, use components from the [Medusa UI package](https://docs.medusajs.com/ui/index.html.md) to maintain a consistent user interface and design in the dashboard. + +*** + +## Test it Out + +To test out your widget, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +Then, open the admin dashboard at `http://localhost:9000/app`. After you log in, open the page of a product that has a brand. You'll see a new section at the top showing the brand's name. + +![The widget is added as the first section of the product details page.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414415/Medusa%20Book/Screenshot_2024-12-05_at_5.59.25_PM_y85m14.png) + +*** + +## Admin Components Guides + +When building your widget, you may need more complicated components. For example, you may add a form to the above widget to set the product's brand. + +The [Admin Components guides](https://docs.medusajs.com/resources/admin-components/index.html.md) show you how to build and use common components in the Medusa Admin, such as forms, tables, JSON data viewer, and more. The components in the guides also follow the Medusa Admin's design convention. + +*** + +## Next Chapter: Add UI Route for Brands + +In the next chapter, you'll add a UI route that displays the list of brands in your application and allows admin users. + + +# Guide: Define Module Link Between Brand and Product + +In this chapter, you'll learn how to define a module link between a brand defined in the [custom Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md), and a product defined in the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md) that's available in your Medusa application out-of-the-box. + +Modules are [isolated](https://docs.medusajs.com/learn/fundamentals/modules/isolation/index.html.md) from other resources, ensuring that they're integrated into the Medusa application without side effects. However, you may need to associate data models of different modules, or you're trying to extend data models from Commerce Modules with custom properties. To do that, you define module links. + +A module link forms an association between two data models of different modules while maintaining module isolation. You can then manage and query linked records of the data models using Medusa's Modules SDK. + +In this chapter, you'll define a module link between the `Brand` data model of the Brand Module, and the `Product` data model of the Product Module. In later chapters, you'll manage and retrieve linked product and brand records. + +Learn more about module links in [this chapters](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). + +### Prerequisites + +- [Brand Module having a Brand data model](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) + +## 1. Define Link + +Links are defined in a TypeScript or JavaScript file under the `src/links` directory. The file defines and exports the link using `defineLink` from the Modules SDK. + +So, to define a link between the `Product` and `Brand` models, create the file `src/links/product-brand.ts` with the following content: + +![The directory structure of the Medusa application after adding the link.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733329897/Medusa%20Book/brands-link-dir-overview_t1rhlp.jpg) + +```ts title="src/links/product-brand.ts" highlights={highlights} +import BrandModule from "../modules/brand" +import ProductModule from "@medusajs/medusa/product" +import { defineLink } from "@medusajs/framework/utils" + +export default defineLink( + { + linkable: ProductModule.linkable.product, + isList: true, + }, + BrandModule.linkable.brand +) +``` + +You import each module's definition object from the `index.ts` file of the module's directory. Each module object has a special `linkable` property that holds the data models' link configurations. + +The `defineLink` function accepts two parameters of the same type, which is either: + +- The data model's link configuration, which you access from the Module's `linkable` property; +- Or an object that has two properties: + - `linkable`: the data model's link configuration, which you access from the Module's `linkable` property. + - `isList`: A boolean indicating whether many records of the data model can be linked to the other model. + +So, in the above code snippet, you define a link between the `Product` and `Brand` data models. Since a brand can be associated with multiple products, you enable `isList` in the `Product` model's object. + +*** + +## 2. Sync the Link to the Database + +A module link is represented in the database as a table that stores the IDs of linked records. So, after defining the link, run the following command to create the module link's table in the database: + +```bash +npx medusa db:migrate +``` + +This command reflects migrations on the database and syncs module links, which creates a table for the `product-brand` link. + +You can also run the `npx medusa db:sync-links` to just sync module links without running migrations. + +*** + +## Next Steps: Extend Create Product Flow + +In the next chapter, you'll extend Medusa's workflow and API route that create a product to allow associating a brand with a product. You'll also learn how to link brand and product records. + + +# Guide: Extend Create Product Flow + +After linking the [custom Brand data model](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) and Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md) in the [previous chapter](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md), you'll extend the create product workflow and API route to allow associating a brand with a product. + +Some API routes, including the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts), accept an `additional_data` request body parameter. This parameter can hold custom data that's passed to the [hooks](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md) of the workflow executed in the API route, allowing you to consume those hooks and perform actions with the custom data. + +So, in this chapter, to extend the create product flow and associate a brand with a product, you will: + +- Consume the [productsCreated](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow#productsCreated/index.html.md) hook of the [createProductsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md), which is executed within the workflow after the product is created. You'll link the product with the brand passed in the `additional_data` parameter. +- Extend the Create Product API route to allow passing a brand ID in `additional_data`. + +To learn more about the `additional_data` property and the API routes that accept additional data, refer to [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md). + +### Prerequisites + +- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) +- [Defined link between the Brand and Product data models.](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) + +*** + +## 1. Consume the productsCreated Hook + +A workflow hook is a point in a workflow where you can inject a step to perform a custom functionality. Consuming a workflow hook allows you to extend the features of a workflow and, consequently, the API route that uses it. + +Learn more about the workflow hooks in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md). + +The [createProductsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md) used in the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts) has a `productsCreated` hook that runs after the product is created. You'll consume this hook to link the created product with the brand specified in the request parameters. + +To consume the `productsCreated` hook, create the file `src/workflows/hooks/created-product.ts` with the following content: + +![Directory structure after creating the hook's file.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733384338/Medusa%20Book/brands-hook-dir-overview_ltwr5h.jpg) + +```ts title="src/workflows/hooks/created-product.ts" highlights={hook1Highlights} +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" +import { StepResponse } from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" +import { LinkDefinition } from "@medusajs/framework/types" +import { BRAND_MODULE } from "../../modules/brand" +import BrandModuleService from "../../modules/brand/service" + +createProductsWorkflow.hooks.productsCreated( + (async ({ products, additional_data }, { container }) => { + if (!additional_data?.brand_id) { + return new StepResponse([], []) + } + + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + // if the brand doesn't exist, an error is thrown. + await brandModuleService.retrieveBrand(additional_data.brand_id as string) + + // TODO link brand to product + }) +) +``` + +Workflows have a special `hooks` property to access its hooks and consume them. Each hook, such as `productsCreated`, accepts a step function as a parameter. The step function accepts the following parameters: + +1. An object having an `additional_data` property, which is the custom data passed in the request body under `additional_data`. The object will also have properties passed from the workflow to the hook, which in this case is the `products` property that holds an array of the created products. +2. An object of properties related to the step's context. It has a `container` property whose value is the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) to resolve Framework and commerce tools. + +In the step, if a brand ID is passed in `additional_data`, you resolve the Brand Module's service and use its generated `retrieveBrand` method to retrieve the brand by its ID. The `retrieveBrand` method will throw an error if the brand doesn't exist. + +### Link Brand to Product + +Next, you want to create a link between the created products and the brand. To do so, you use Link, which is a class from the Modules SDK that provides methods to manage linked records. + +Learn more about Link in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/link/index.html.md). + +To use Link in the `productsCreated` hook, replace the `TODO` with the following: + +```ts title="src/workflows/hooks/created-product.ts" highlights={hook2Highlights} +const link = container.resolve("link") +const logger = container.resolve("logger") + +const links: LinkDefinition[] = [] + +for (const product of products) { + links.push({ + [Modules.PRODUCT]: { + product_id: product.id, + }, + [BRAND_MODULE]: { + brand_id: additional_data.brand_id, + }, + }) +} + +await link.create(links) + +logger.info("Linked brand to products") + +return new StepResponse(links, links) +``` + +You resolve Link from the container. Then you loop over the created products to assemble an array of links to be created. After that, you pass the array of links to Link's `create` method, which will link the product and brand records. + +Each property in the link object is the name of a module, and its value is an object having a `{model_name}_id` property, where `{model_name}` is the snake-case name of the module's data model. Its value is the ID of the record to be linked. The link object's properties must be set in the same order as the link configurations passed to `defineLink`. + +![Diagram showcasing how the order of defining a link affects creating the link](https://res.cloudinary.com/dza7lstvk/image/upload/v1733386156/Medusa%20Book/remote-link-brand-product-exp_fhjmg4.jpg) + +Finally, you return an instance of `StepResponse` returning the created links. + +### Dismiss Links in Compensation + +You can pass as a second parameter of the hook a compensation function that undoes what the step did. It receives as a first parameter the returned `StepResponse`'s second parameter, and the step context object as a second parameter. + +To undo creating the links in the hook, pass the following compensation function as a second parameter to `productsCreated`: + +```ts title="src/workflows/hooks/created-product.ts" +createProductsWorkflow.hooks.productsCreated( + // ... + (async (links, { container }) => { + if (!links?.length) { + return + } + + const link = container.resolve("link") + + await link.dismiss(links) + }) +) +``` + +In the compensation function, if the `links` parameter isn't empty, you resolve Link from the container and use its `dismiss` method. This method removes a link between two records. It accepts the same parameter as the `create` method. + +*** + +## 2. Configure Additional Data Validation + +Now that you've consumed the `productsCreated` hook, you want to configure the `/admin/products` API route that creates a new product to accept a brand ID in its `additional_data` parameter. + +You configure the properties accepted in `additional_data` in the `src/api/middlewares.ts` that exports middleware configurations. So, create the file (or, if already existing, add to the file) `src/api/middlewares.ts` the following content: + +![Directory structure after adding the middelwares file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733386868/Medusa%20Book/brands-middleware-dir-overview_uczos1.jpg) + +```ts title="src/api/middlewares.ts" +import { defineMiddlewares } from "@medusajs/framework/http" +import { z } from "zod" + +// ... + +export default defineMiddlewares({ + routes: [ + // ... + { + matcher: "/admin/products", + method: ["POST"], + additionalDataValidator: { + brand_id: z.string().optional(), + }, + }, + ], +}) +``` + +Objects in `routes` accept an `additionalDataValidator` property that configures the validation rules for custom properties passed in the `additional_data` request parameter. It accepts an object whose keys are custom property names, and their values are validation rules created using [Zod](https://zod.dev/). + +So, `POST` requests sent to `/admin/products` can now pass the ID of a brand in the `brand_id` property of `additional_data`. + +*** + +## Test it Out + +To test it out, first, retrieve the authentication token of your admin user by sending a `POST` request to `/auth/user/emailpass`: + +```bash +curl -X POST 'http://localhost:9000/auth/user/emailpass' \ +-H 'Content-Type: application/json' \ +--data-raw '{ + "email": "admin@medusa-test.com", + "password": "supersecret" +}' +``` + +Make sure to replace the email and password in the request body with your user's credentials. + +Then, send a `POST` request to `/admin/products` to create a product, and pass in the `additional_data` parameter a brand's ID: + +```bash +curl -X POST 'http://localhost:9000/admin/products' \ +-H 'Content-Type: application/json' \ +-H 'Authorization: Bearer {token}' \ +--data '{ + "title": "Product 1", + "options": [ + { + "title": "Default option", + "values": ["Default option value"] + } + ], + "shipping_profile_id": "{shipping_profile_id}", + "additional_data": { + "brand_id": "{brand_id}" + } +}' +``` + +Make sure to replace `{token}` with the token you received from the previous request, `shipping_profile_id` with the ID of a shipping profile in your application, and `{brand_id}` with the ID of a brand in your application. You can retrieve the ID of a shipping profile either from the Medusa Admin, or the [List Shipping Profiles API route](https://docs.medusajs.com/api/admin#shipping-profiles_getshippingprofiles). + +The request creates a product and returns it. + +In the Medusa application's logs, you'll find the message `Linked brand to products`, indicating that the workflow hook handler ran and linked the brand to the products. + +*** + +## Next Steps: Query Linked Brands and Products + +Now that you've extending the create-product flow to link a brand to it, you want to retrieve the brand details of a product. You'll learn how to do so in the next chapter. + + +# Guide: Query Product's Brands + +In the previous chapters, you [defined a link](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) between the [custom Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) and Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md), then [extended the create-product flow](https://docs.medusajs.com/learn/customization/extend-features/extend-create-product/index.html.md) to link a product to a brand. + +In this chapter, you'll learn how to retrieve a product's brand (and vice-versa) in two ways: Using Medusa's existing API route, or in customizations, such as a custom API route. + +### Prerequisites + +- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) +- [Defined link between the Brand and Product data models.](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) + +*** + +## Approach 1: Retrieve Brands in Existing API Routes + +Medusa's existing API routes accept a `fields` query parameter that allows you to specify the fields and relations of a model to retrieve. So, when you send a request to the [List Products](https://docs.medusajs.com/api/admin#products_getproducts), [Get Product](https://docs.medusajs.com/api/admin#products_getproductsid), or any product-related store or admin routes that accept a `fields` query parameter, you can specify in this parameter to return the product's brands. + +Learn more about using the `fields` query parameter to retrieve custom linked data models in the [Retrieve Custom Linked Data Models from Medusa's API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/retrieve-custom-links/index.html.md) chapter. + +For example, send the following request to retrieve the list of products with their brands: + +```bash +curl 'http://localhost:9000/admin/products?fields=+brand.*' \ +--header 'Authorization: Bearer {token}' +``` + +Make sure to replace `{token}` with your admin user's authentication token. Learn how to retrieve it in the [API reference](https://docs.medusajs.com/api/store#authentication). + +Any product that is linked to a brand will have a `brand` property in its object: + +```json title="Example Product Object" +{ + "id": "prod_123", + // ... + "brand": { + "id": "01JEB44M61BRM3ARM2RRMK7GJF", + "name": "Acme", + "created_at": "2024-12-05T09:59:08.737Z", + "updated_at": "2024-12-05T09:59:08.737Z", + "deleted_at": null + } +} +``` + +By using the `fields` query parameter, you don't have to re-create existing API routes to get custom data models that you linked to core data models. + +### Limitations: Filtering by Brands in Existing API Routes + +While you can retrieve linked records using the `fields` query parameter of an existing API route, you can't filter by linked records. + +Instead, you'll have to create a custom API route that uses Query to retrieve linked records with filters, as explained in the [Query documentation](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-filters-and-pagination-on-linked-records/index.html.md). + +*** + +## Approach 2: Use Query to Retrieve Linked Records + +You can also retrieve linked records using Query. Query allows you to retrieve data across modules with filters, pagination, and more. You can resolve Query from the Medusa container and use it in your API route or workflow. + +Learn more about Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). + +For example, you can create an API route that retrieves brands and their products. If you followed the [Create Brands API route chapter](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), you'll have the file `src/api/admin/brands/route.ts` with a `POST` API route. Add a new `GET` function to the same file: + +```ts title="src/api/admin/brands/route.ts" highlights={highlights} +// other imports... +import { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + const query = req.scope.resolve("query") + + const { data: brands } = await query.graph({ + entity: "brand", + fields: ["*", "products.*"], + }) + + res.json({ brands }) +} +``` + +This adds a `GET` API route at `/admin/brands`. In the API route, you resolve Query from the Medusa container. Query has a `graph` method that runs a query to retrieve data. It accepts an object having the following properties: + +- `entity`: The data model's name as specified in the first parameter of `model.define`. +- `fields`: An array of properties and relations to retrieve. You can pass: + - A property's name, such as `id`, or `*` for all properties. + - A relation or linked model's name, such as `products` (use the plural name since brands are linked to list of products). You suffix the name with `.*` to retrieve all its properties. + +`graph` returns an object having a `data` property, which is the retrieved brands. You return the brands in the response. + +### Test it Out + +To test the API route out, send a `GET` request to `/admin/brands`: + +```bash +curl 'http://localhost:9000/admin/brands' \ +-H 'Authorization: Bearer {token}' +``` + +Make sure to replace `{token}` with your admin user's authentication token. Learn how to retrieve it in the [API reference](https://docs.medusajs.com/api/store#authentication). + +This returns the brands in your store with their linked products. For example: + +```json title="Example Response" +{ + "brands": [ + { + "id": "123", + // ... + "products": [ + { + "id": "prod_123", + // ... + } + ] + } + ] +} +``` + +### Limitations: Filtering by Brand in Query + +While you can use Query to retrieve linked records, you can't filter by linked records. + +For an alternative approach, refer to the [Query documentation](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-filters-and-pagination-on-linked-records/index.html.md). + +*** + +## Summary + +By following the examples of the previous chapters, you: + +- Defined a link between the Brand and Product modules's data models, allowing you to associate a product with a brand. +- Extended the create-product workflow and route to allow setting the product's brand while creating the product. +- Queried a product's brand, and vice versa. + +*** + +## Next Steps: Customize Medusa Admin + +Clients, such as the Medusa Admin dashboard, can now use brand-related features, such as creating a brand or setting the brand of a product. + +In the next chapters, you'll learn how to customize the Medusa Admin to show a product's brand on its details page, and to show a new page with the list of brands in your store. + + +# Guide: Sync Brands from Medusa to Third-Party + +In the [previous chapter](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md), you created a CMS Module that integrates a dummy third-party system. You can now perform actions using that module within your custom flows. + +In another previous chapter, you [added a workflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) that creates a brand. After integrating the CMS, you want to sync that brand to the third-party system as well. + +Medusa has an event system that emits events when an operation is performed. It allows you to listen to those events and perform an asynchronous action in a function called a [subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). This is useful to perform actions that aren't integral to the original flow, such as syncing data to a third-party system. + +Learn more about Medusa's event system and subscribers in [this chapter](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). + +In this chapter, you'll modify the `createBrandWorkflow` you created before to emit a custom event that indicates a brand was created. Then, you'll listen to that event in a subscriber to sync the brand to the third-party CMS. You'll implement the sync logic within a workflow that you execute in the subscriber. + +### Prerequisites + +- [createBrandWorkflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) +- [CMS Module](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) + +## 1. Emit Event in createBrandWorkflow + +Since syncing the brand to the third-party system isn't integral to creating a brand, you'll emit a custom event indicating that a brand was created. + +Medusa provides an `emitEventStep` that allows you to emit an event in your workflows. So, in the `createBrandWorkflow` defined in `src/workflows/create-brand.ts`, use the `emitEventStep` helper step after the `createBrandStep`: + +```ts title="src/workflows/create-brand.ts" highlights={eventHighlights} +// other imports... +import { + emitEventStep, +} from "@medusajs/medusa/core-flows" + +// ... + +export const createBrandWorkflow = createWorkflow( + "create-brand", + (input: CreateBrandInput) => { + // ... + + emitEventStep({ + eventName: "brand.created", + data: { + id: brand.id, + }, + }) + + return new WorkflowResponse(brand) + } +) +``` + +The `emitEventStep` accepts an object parameter having two properties: + +- `eventName`: The name of the event to emit. You'll use this name later to listen to the event in a subscriber. +- `data`: The data payload to emit with the event. This data is passed to subscribers that listen to the event. You add the brand's ID to the data payload, informing the subscribers which brand was created. + +You'll learn how to handle this event in a later step. + +*** + +## 2. Create Sync to Third-Party System Workflow + +The subscriber that will listen to the `brand.created` event will sync the created brand to the third-party CMS. So, you'll implement the syncing logic in a workflow, then execute the workflow in the subscriber. + +Workflows have a built-in durable execution engine that helps you complete tasks spanning multiple systems. Also, their rollback mechanism ensures that data is consistent across systems even when errors occur during execution. + +Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). + +You'll create a `syncBrandToSystemWorkflow` that has two steps: + +- `useQueryGraphStep`: a step that Medusa provides to retrieve data using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). You'll use this to retrieve the brand's details using its ID. +- `syncBrandToCmsStep`: a step that you'll create to sync the brand to the CMS. + +### syncBrandToCmsStep + +To implement the step that syncs the brand to the CMS, create the file `src/workflows/sync-brands-to-cms.ts` with the following content: + +![Directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733493547/Medusa%20Book/cms-dir-overview-4_u5t0ug.jpg) + +```ts title="src/workflows/sync-brands-to-cms.ts" highlights={syncStepHighlights} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { createStep, StepResponse } from "@medusajs/framework/workflows-sdk" +import { InferTypeOf } from "@medusajs/framework/types" +import { Brand } from "../modules/brand/models/brand" +import { CMS_MODULE } from "../modules/cms" +import CmsModuleService from "../modules/cms/service" + +type SyncBrandToCmsStepInput = { + brand: InferTypeOf +} + +const syncBrandToCmsStep = createStep( + "sync-brand-to-cms", + async ({ brand }: SyncBrandToCmsStepInput, { container }) => { + const cmsModuleService: CmsModuleService = container.resolve(CMS_MODULE) + + await cmsModuleService.createBrand(brand) + + return new StepResponse(null, brand.id) + }, + async (id, { container }) => { + if (!id) { + return + } + + const cmsModuleService: CmsModuleService = container.resolve(CMS_MODULE) + + await cmsModuleService.deleteBrand(id) + } +) +``` + +You create the `syncBrandToCmsStep` that accepts a brand as an input. In the step, you resolve the CMS Module's service from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) and use its `createBrand` method. This method will create the brand in the third-party CMS. + +You also pass the brand's ID to the step's compensation function. In this function, you delete the brand in the third-party CMS if an error occurs during the workflow's execution. + +Learn more about compensation functions in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). + +### Create Workflow + +You can now create the workflow that uses the above step. Add the workflow to the same `src/workflows/sync-brands-to-cms.ts` file: + +```ts title="src/workflows/sync-brands-to-cms.ts" highlights={syncWorkflowHighlights} +// other imports... +import { + // ... + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +type SyncBrandToCmsWorkflowInput = { + id: string +} + +export const syncBrandToCmsWorkflow = createWorkflow( + "sync-brand-to-cms", + (input: SyncBrandToCmsWorkflowInput) => { + // @ts-ignore + const { data: brands } = useQueryGraphStep({ + entity: "brand", + fields: ["*"], + filters: { + id: input.id, + }, + options: { + throwIfKeyNotFound: true, + }, + }) + + syncBrandToCmsStep({ + brand: brands[0], + } as SyncBrandToCmsStepInput) + + return new WorkflowResponse({}) + } +) +``` + +You create a `syncBrandToCmsWorkflow` that accepts the brand's ID as input. The workflow has the following steps: + +- `useQueryGraphStep`: Retrieve the brand's details using Query. You pass the brand's ID as a filter, and set the `throwIfKeyNotFound` option to true so that the step throws an error if a brand with the specified ID doesn't exist. +- `syncBrandToCmsStep`: Create the brand in the third-party CMS. + +You'll execute this workflow in the subscriber next. + +Learn more about `useQueryGraphStep` in [this reference](https://docs.medusajs.com/resources/references/helper-steps/useQueryGraphStep/index.html.md). + +*** + +## 3. Handle brand.created Event + +You now have a workflow with the logic to sync a brand to the CMS. You need to execute this workflow whenever the `brand.created` event is emitted. So, you'll create a subscriber that listens to and handle the event. + +Subscribers are created in a TypeScript or JavaScript file under the `src/subscribers` directory. So, create the file `src/subscribers/brand-created.ts` with the following content: + +![Directory structure of the Medusa application after adding the subscriber](https://res.cloudinary.com/dza7lstvk/image/upload/v1733493774/Medusa%20Book/cms-dir-overview-5_iqqwvg.jpg) + +```ts title="src/subscribers/brand-created.ts" highlights={subscriberHighlights} +import type { + SubscriberConfig, + SubscriberArgs, +} from "@medusajs/framework" +import { syncBrandToCmsWorkflow } from "../workflows/sync-brands-to-cms" + +export default async function brandCreatedHandler({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + await syncBrandToCmsWorkflow(container).run({ + input: data, + }) +} + +export const config: SubscriberConfig = { + event: "brand.created", +} +``` + +A subscriber file must export: + +- The asynchronous function that's executed when the event is emitted. This must be the file's default export. +- An object that holds the subscriber's configurations. It has an `event` property that indicates the name of the event that the subscriber is listening to. + +The subscriber function accepts an object parameter that has two properties: + +- `event`: An object of event details. Its `data` property holds the event's data payload, which is the brand's ID. +- `container`: The Medusa container used to resolve Framework and commerce tools. + +In the function, you execute the `syncBrandToCmsWorkflow`, passing it the data payload as an input. So, everytime a brand is created, Medusa will execute this function, which in turn executes the workflow to sync the brand to the CMS. + +Learn more about subscribers in [this chapter](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). + +*** + +## Test it Out + +To test the subscriber and workflow out, you'll use the [Create Brand API route](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md) you created in a previous chapter. + +First, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +Since the `/admin/brands` API route has a `/admin` prefix, it's only accessible by authenticated admin users. So, to retrieve an authenticated token of your admin user, send a `POST` request to the `/auth/user/emailpass` API Route: + +```bash +curl -X POST 'http://localhost:9000/auth/user/emailpass' \ +-H 'Content-Type: application/json' \ +--data-raw '{ + "email": "admin@medusa-test.com", + "password": "supersecret" +}' +``` + +Make sure to replace the email and password with your admin user's credentials. + +Don't have an admin user? Refer to [this guide](https://docs.medusajs.com/learn/installation#create-medusa-admin-user/index.html.md). + +Then, send a `POST` request to `/admin/brands`, passing the token received from the previous request in the `Authorization` header: + +```bash +curl -X POST 'http://localhost:9000/admin/brands' \ +-H 'Content-Type: application/json' \ +-H 'Authorization: Bearer {token}' \ +--data '{ + "name": "Acme" +}' +``` + +This request returns the created brand. If you check the logs, you'll find the `brand.created` event was emitted, and that the request to the third-party system was simulated: + +```plain +info: Processing brand.created which has 1 subscribers +http: POST /admin/brands ← - (200) - 16.418 ms +info: Sending a POST request to /brands. +info: Request Data: { + "id": "01JEDWENYD361P664WRQPMC3J8", + "name": "Acme", + "created_at": "2024-12-06T11:42:32.909Z", + "updated_at": "2024-12-06T11:42:32.909Z", + "deleted_at": null +} +info: API Key: "123" +``` + +*** + +## Next Chapter: Sync Brand from Third-Party CMS to Medusa + +You can also automate syncing data from a third-party system to Medusa at a regular interval. In the next chapter, you'll learn how to sync brands from the third-party CMS to Medusa once a day. + + +# Guide: Schedule Syncing Brands from Third-Party + +In the previous chapters, you've [integrated a third-party CMS](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) and implemented the logic to [sync created brands](https://docs.medusajs.com/learn/customization/integrate-systems/handle-event/index.html.md) from Medusa to the CMS. + +However, when you integrate a third-party system, you want the data to be in sync between the Medusa application and the system. One way to do so is by automatically syncing the data once a day. + +You can create an action to be automatically executed at a specified interval using scheduled jobs. A scheduled job is an asynchronous function with a specified schedule of when the Medusa application should run it. Scheduled jobs are useful to automate repeated tasks. + +Learn more about scheduled jobs in [this chapter](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md). + +In this chapter, you'll create a scheduled job that triggers syncing the brands from the third-party CMS to Medusa once a day. You'll implement the syncing logic in a workflow, and execute that workflow in the scheduled job. + +### Prerequisites + +- [CMS Module](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) + +*** + +## 1. Implement Syncing Workflow + +You'll start by implementing the syncing logic in a workflow, then execute the workflow later in the scheduled job. + +Workflows have a built-in durable execution engine that helps you complete tasks spanning multiple systems. Also, their rollback mechanism ensures that data is consistent across systems even when errors occur during execution. + +Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). + +This workflow will have three steps: + +1. `retrieveBrandsFromCmsStep` to retrieve the brands from the CMS. +2. `createBrandsStep` to create the brands retrieved in the first step that don't exist in Medusa. +3. `updateBrandsStep` to update the brands retrieved in the first step that exist in Medusa. + +### retrieveBrandsFromCmsStep + +To create the step that retrieves the brands from the third-party CMS, create the file `src/workflows/sync-brands-from-cms.ts` with the following content: + +![Directory structure of the Medusa application after creating the file.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733494196/Medusa%20Book/cms-dir-overview-6_z1omsi.jpg) + +```ts title="src/workflows/sync-brands-from-cms.ts" collapsibleLines="1-7" expandButtonLabel="Show Imports" +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import CmsModuleService from "../modules/cms/service" +import { CMS_MODULE } from "../modules/cms" + +const retrieveBrandsFromCmsStep = createStep( + "retrieve-brands-from-cms", + async (_, { container }) => { + const cmsModuleService: CmsModuleService = container.resolve( + CMS_MODULE + ) + + const brands = await cmsModuleService.retrieveBrands() + + return new StepResponse(brands) + } +) +``` + +You create a `retrieveBrandsFromCmsStep` that resolves the CMS Module's service and uses its `retrieveBrands` method to retrieve the brands in the CMS. You return those brands in the step's response. + +### createBrandsStep + +The brands retrieved in the first step may have brands that don't exist in Medusa. So, you'll create a step that creates those brands. Add the step to the same `src/workflows/sync-brands-from-cms.ts` file: + +```ts title="src/workflows/sync-brands-from-cms.ts" highlights={createBrandsHighlights} collapsibleLines="1-8" expandButtonLabel="Show Imports" +// other imports... +import BrandModuleService from "../modules/brand/service" +import { BRAND_MODULE } from "../modules/brand" + +// ... + +type CreateBrand = { + name: string +} + +type CreateBrandsInput = { + brands: CreateBrand[] +} + +export const createBrandsStep = createStep( + "create-brands-step", + async (input: CreateBrandsInput, { container }) => { + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + const brands = await brandModuleService.createBrands(input.brands) + + return new StepResponse(brands, brands) + }, + async (brands, { container }) => { + if (!brands) { + return + } + + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + await brandModuleService.deleteBrands(brands.map((brand) => brand.id)) + } +) +``` + +The `createBrandsStep` accepts the brands to create as an input. It resolves the [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md)'s service and uses the generated `createBrands` method to create the brands. + +The step passes the created brands to the compensation function, which deletes those brands if an error occurs during the workflow's execution. + +Learn more about compensation functions in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). + +### Update Brands Step + +The brands retrieved in the first step may also have brands that exist in Medusa. So, you'll create a step that updates their details to match that of the CMS. Add the step to the same `src/workflows/sync-brands-from-cms.ts` file: + +```ts title="src/workflows/sync-brands-from-cms.ts" highlights={updateBrandsHighlights} +// ... + +type UpdateBrand = { + id: string + name: string +} + +type UpdateBrandsInput = { + brands: UpdateBrand[] +} + +export const updateBrandsStep = createStep( + "update-brands-step", + async ({ brands }: UpdateBrandsInput, { container }) => { + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + const prevUpdatedBrands = await brandModuleService.listBrands({ + id: brands.map((brand) => brand.id), + }) + + const updatedBrands = await brandModuleService.updateBrands(brands) + + return new StepResponse(updatedBrands, prevUpdatedBrands) + }, + async (prevUpdatedBrands, { container }) => { + if (!prevUpdatedBrands) { + return + } + + const brandModuleService: BrandModuleService = container.resolve( + BRAND_MODULE + ) + + await brandModuleService.updateBrands(prevUpdatedBrands) + } +) +``` + +The `updateBrandsStep` receives the brands to update in Medusa. In the step, you retrieve the brand's details in Medusa before the update to pass them to the compensation function. You then update the brands using the Brand Module's `updateBrands` generated method. + +In the compensation function, which receives the brand's old data, you revert the update using the same `updateBrands` method. + +### Create Workflow + +Finally, you'll create the workflow that uses the above steps to sync the brands from the CMS to Medusa. Add to the same `src/workflows/sync-brands-from-cms.ts` file the following: + +```ts title="src/workflows/sync-brands-from-cms.ts" +// other imports... +import { + // ... + createWorkflow, + transform, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +// ... + +export const syncBrandsFromCmsWorkflow = createWorkflow( + "sync-brands-from-system", + () => { + const brands = retrieveBrandsFromCmsStep() + + // TODO create and update brands + } +) +``` + +In the workflow, you only use the `retrieveBrandsFromCmsStep` for now, which retrieves the brands from the third-party CMS. + +Next, you need to identify which brands must be created or updated. Since workflows are constructed internally and are only evaluated during execution, you can't access values to perform data manipulation directly. Instead, use [transform](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md) from the Workflows SDK that gives you access to the real-time values of the data, allowing you to create new variables using those values. + +Learn more about data manipulation using `transform` in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). + +So, replace the `TODO` with the following: + +```ts title="src/workflows/sync-brands-from-cms.ts" +const { toCreate, toUpdate } = transform( + { + brands, + }, + (data) => { + const toCreate: CreateBrand[] = [] + const toUpdate: UpdateBrand[] = [] + + data.brands.forEach((brand) => { + if (brand.external_id) { + toUpdate.push({ + id: brand.external_id as string, + name: brand.name as string, + }) + } else { + toCreate.push({ + name: brand.name as string, + }) + } + }) + + return { toCreate, toUpdate } + } +) + +// TODO create and update the brands +``` + +`transform` accepts two parameters: + +1. The data to be passed to the function in the second parameter. +2. A function to execute only when the workflow is executed. Its return value can be consumed by the rest of the workflow. + +In `transform`'s function, you loop over the brands array to check which should be created or updated. This logic assumes that a brand in the CMS has an `external_id` property whose value is the brand's ID in Medusa. + +You now have the list of brands to create and update. So, replace the new `TODO` with the following: + +```ts title="src/workflows/sync-brands-from-cms.ts" +const created = createBrandsStep({ brands: toCreate }) +const updated = updateBrandsStep({ brands: toUpdate }) + +return new WorkflowResponse({ + created, + updated, +}) +``` + +You first run the `createBrandsStep` to create the brands that don't exist in Medusa, then the `updateBrandsStep` to update the brands that exist in Medusa. You pass the arrays returned by `transform` as the inputs for the steps. + +Finally, you return an object of the created and updated brands. You'll execute this workflow in the scheduled job next. + +*** + +## 2. Schedule Syncing Task + +You now have the workflow to sync the brands from the CMS to Medusa. Next, you'll create a scheduled job that runs this workflow once a day to ensure the data between Medusa and the CMS are always in sync. + +A scheduled job is created in a TypeScript or JavaScript file under the `src/jobs` directory. So, create the file `src/jobs/sync-brands-from-cms.ts` with the following content: + +![Directory structure of the Medusa application after adding the scheduled job](https://res.cloudinary.com/dza7lstvk/image/upload/v1733494592/Medusa%20Book/cms-dir-overview-7_dkjb9s.jpg) + +```ts title="src/jobs/sync-brands-from-cms.ts" +import { MedusaContainer } from "@medusajs/framework/types" +import { syncBrandsFromCmsWorkflow } from "../workflows/sync-brands-from-cms" + +export default async function (container: MedusaContainer) { + const logger = container.resolve("logger") + + const { result } = await syncBrandsFromCmsWorkflow(container).run() + + logger.info( + `Synced brands from third-party system: ${ + result.created.length + } brands created and ${result.updated.length} brands updated.`) +} + +export const config = { + name: "sync-brands-from-system", + schedule: "0 0 * * *", // change to * * * * * for debugging +} +``` + +A scheduled job file must export: + +- An asynchronous function that will be executed at the specified schedule. This function must be the file's default export. +- An object of scheduled jobs configuration. It has two properties: + - `name`: A unique name for the scheduled job. + - `schedule`: A string that holds a [cron expression](https://crontab.guru/) indicating the schedule to run the job. + +The scheduled job function accepts as a parameter the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) used to resolve Framework and commerce tools. You then execute the `syncBrandsFromCmsWorkflow` and use its result to log how many brands were created or updated. + +Based on the cron expression specified in `config.schedule`, Medusa will run the scheduled job every day at midnight. You can also change it to `* * * * *` to run it every minute for easier debugging. + +*** + +## Test it Out + +To test out the scheduled job, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +If you set the schedule to `* * * * *` for debugging, the scheduled job will run in a minute. You'll see in the logs how many brands were created or updated. + +*** + +## Summary + +By following the previous chapters, you utilized the Medusa Framework and orchestration tools to perform and automate tasks that span across systems. + +With Medusa, you can integrate any service from your commerce ecosystem with ease. You don't have to set up separate applications to manage your different customizations, or worry about data inconsistency across systems. Your efforts only go into implementing the business logic that ties your systems together. + + +# Guide: Integrate Third-Party Brand System + +In the previous chapters, you've created a [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) that adds brands to your application. In this chapter, you'll integrate a dummy Content-Management System (CMS) in a new module. The module's service will provide methods to retrieve and manage brands in the CMS. You'll later use this service to sync data from and to the CMS. + +Learn more about modules in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). + +## 1. Create Module Directory + +You'll integrate the third-party system in a new CMS Module. So, create the directory `src/modules/cms` that will hold the module's resources. + +![Directory structure after adding the directory for the CMS Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492447/Medusa%20Book/cms-dir-overview-1_gasguk.jpg) + +*** + +## 2. Create Module Service + +Next, you'll create the module's service. It will provide methods to connect and perform actions with the third-party system. + +Create the CMS Module's service at `src/modules/cms/service.ts` with the following content: + +![Directory structure after adding the CMS Module's service](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492583/Medusa%20Book/cms-dir-overview-2_zwcwh3.jpg) + +```ts title="src/modules/cms/service.ts" highlights={serviceHighlights} +import { Logger, ConfigModule } from "@medusajs/framework/types" + +export type ModuleOptions = { + apiKey: string +} + +type InjectedDependencies = { + logger: Logger + configModule: ConfigModule +} + +class CmsModuleService { + private options_: ModuleOptions + private logger_: Logger + + constructor({ logger }: InjectedDependencies, options: ModuleOptions) { + this.logger_ = logger + this.options_ = options + + // TODO initialize SDK + } +} + +export default CmsModuleService +``` + +You create a `CmsModuleService` that will hold the methods to connect to the third-party CMS. A service's constructor accepts two parameters: + +1. The module's container. Since a module is [isolated](https://docs.medusajs.com/learn/fundamentals/modules/isolation/index.html.md), it has a [local container](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md) different than the Medusa container you use in other customizations. This container holds Framework tools like the [Logger utility](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md) and resources within the module. +2. Options passed to the module when it's later added in Medusa's configurations. These options are useful to pass secret keys or configurations that ensure your module is re-usable across applications. For the CMS Module, you accept the API key to connect to the dummy CMS as an option. + +When integrating a third-party system that has a Node.js SDK or client, you can initialize that client in the constructor to be used in the service's methods. + +### Integration Methods + +Next, you'll add methods that simulate sending requests to a third-party CMS. You'll use these methods later to sync brands from and to the CMS. + +Add the following methods in the `CmsModuleService`: + +```ts title="src/modules/cms/service.ts" highlights={methodsHighlights} +export class CmsModuleService { + // ... + + // a dummy method to simulate sending a request, + // in a realistic scenario, you'd use an SDK, fetch, or axios clients + private async sendRequest(url: string, method: string, data?: any) { + this.logger_.info(`Sending a ${method} request to ${url}.`) + this.logger_.info(`Request Data: ${JSON.stringify(data, null, 2)}`) + this.logger_.info(`API Key: ${JSON.stringify(this.options_.apiKey, null, 2)}`) + } + + async createBrand(brand: Record) { + await this.sendRequest("/brands", "POST", brand) + } + + async deleteBrand(id: string) { + await this.sendRequest(`/brands/${id}`, "DELETE") + } + + async retrieveBrands(): Promise[]> { + await this.sendRequest("/brands", "GET") + + return [] + } +} +``` + +The `sendRequest` method sends requests to the third-party CMS. Since this guide isn't using a real CMS, it only simulates the sending by logging messages in the terminal. + +You also add three methods that use the `sendRequest` method: + +- `createBrand` that creates a brand in the third-party system. +- `deleteBrand` that deletes the brand in the third-party system. +- `retrieveBrands` to retrieve a brand from the third-party system. + +*** + +## 3. Export Module Definition + +After creating the module's service, you'll export the module definition indicating the module's name and service. + +Create the file `src/modules/cms/index.ts` with the following content: + +![Directory structure of the Medusa application after adding the module definition file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492991/Medusa%20Book/cms-dir-overview-3_b0byks.jpg) + +```ts title="src/modules/cms/index.ts" +import { Module } from "@medusajs/framework/utils" +import CmsModuleService from "./service" + +export const CMS_MODULE = "cms" + +export default Module(CMS_MODULE, { + service: CmsModuleService, +}) +``` + +You use `Module` from the Modules SDK to export the module's defintion, indicating that the module's name is `cms` and its service is `CmsModuleService`. + +*** + +## 4. Add Module to Medusa's Configurations + +Finally, add the module to the Medusa configurations at `medusa-config.ts`: ```ts title="medusa-config.ts" module.exports = defineConfig({ - admin: { - disable: process.env.ADMIN_DISABLED === "true" || - false, - }, // ... + modules: [ + // ... + { + resolve: "./src/modules/cms", + options: { + apiKey: process.env.CMS_API_KEY, + }, + }, + ], }) ``` -Similar to before, you set the value in an environment variable, allowing you to enable or disable the admin interface based on the environment. +The object passed in `modules` accept an `options` property, whose value is an object of options to pass to the module. These are the options you receive in the `CmsModuleService`'s constructor. -Then, in the deployed server Medusa instance, set `ADMIN_DISABLED` to `false`, and in the worker Medusa instance, set `ADMIN_DISABLED` to `true`: - -### Server Medusa Instance +You can add the `CMS_API_KEY` environment variable to `.env`: ```bash -ADMIN_DISABLED=false +CMS_API_KEY=123 ``` -### Worker Medusa Instance +*** -```bash -ADMIN_DISABLED=true -``` +## Next Steps: Sync Brand From Medusa to CMS + +You can now use the CMS Module's service to perform actions on the third-party CMS. + +In the next chapter, you'll learn how to emit an event when a brand is created, then handle that event to sync the brand from Medusa to the third-party service. # Write Integration Tests @@ -4816,51 +7016,6 @@ To manage that database, such as changing its name or perform operations on it i The next chapters provide examples of writing integration tests for API routes and workflows. -# Admin Development Constraints - -This chapter lists some constraints of admin widgets and UI routes. - -## Arrow Functions - -Widget and UI route components must be created as arrow functions. - -```ts highlights={arrowHighlights} -// Don't -function ProductWidget() { - // ... -} - -// Do -const ProductWidget = () => { - // ... -} -``` - -*** - -## Widget Zone - -A widget zone's value must be wrapped in double or single quotes. It can't be a template literal or a variable. - -```ts highlights={zoneHighlights} -// Don't -export const config = defineWidgetConfig({ - zone: `product.details.before`, -}) - -// Don't -const ZONE = "product.details.after" -export const config = defineWidgetConfig({ - zone: ZONE, -}) - -// Do -export const config = defineWidgetConfig({ - zone: "product.details.before", -}) -``` - - # Write Tests for Modules In this chapter, you'll learn about `moduleIntegrationTestRunner` from Medusa's Testing Framework and how to use it to write integration tests for a module's main service. @@ -4980,6 +7135,51 @@ The `moduleIntegrationTestRunner` function creates a database with a random name To manage that database, such as changing its name or perform operations on it in your tests, refer to [the Test Tooling Reference](https://docs.medusajs.com/resources/test-tools-reference/moduleIntegrationTestRunner/index.html.md). +# Admin Development Constraints + +This chapter lists some constraints of admin widgets and UI routes. + +## Arrow Functions + +Widget and UI route components must be created as arrow functions. + +```ts highlights={arrowHighlights} +// Don't +function ProductWidget() { + // ... +} + +// Do +const ProductWidget = () => { + // ... +} +``` + +*** + +## Widget Zone + +A widget zone's value must be wrapped in double or single quotes. It can't be a template literal or a variable. + +```ts highlights={zoneHighlights} +// Don't +export const config = defineWidgetConfig({ + zone: `product.details.before`, +}) + +// Don't +const ZONE = "product.details.after" +export const config = defineWidgetConfig({ + zone: ZONE, +}) + +// Do +export const config = defineWidgetConfig({ + zone: "product.details.before", +}) +``` + + # Environment Variables in Admin Customizations In this chapter, you'll learn how to use environment variables in your admin customizations. @@ -5247,103 +7447,120 @@ export const handle = { Refer to [react-router-dom’s documentation](https://reactrouter.com/en/6.29.0) for components and hooks that you can use in your admin customizations. -# Admin Widgets +# Admin Development Tips -In this chapter, you’ll learn more about widgets and how to use them. +In this chapter, you'll find some tips for your admin development. -## What is an Admin Widget? +## Send Requests to API Routes -The Medusa Admin dashboard's pages are customizable to insert widgets of custom content in pre-defined injection zones. You create these widgets as React components that allow admin users to perform custom actions. +To send a request to an API route in the Medusa Application, use Medusa's [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) with [Tanstack Query](https://tanstack.com/query/latest). Both of these tools are installed in your project by default. -For example, you can add a widget on the product details page that allow admin users to sync products to a third-party service. +Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. -*** +First, create the file `src/admin/lib/config.ts` to setup the SDK for use in your customizations: -## How to Create a Widget? +### Medusa Project -### Prerequisites +```ts title="src/admin/lib/config.ts" +import Medusa from "@medusajs/js-sdk" -- [Medusa application installed](https://docs.medusajs.com/learn/installation/index.html.md) +export const sdk = new Medusa({ + baseUrl: import.meta.env.VITE_BACKEND_URL || "/", + debug: import.meta.env.DEV, + auth: { + type: "session", + }, +}) +``` -You create a widget in a `.tsx` file under the `src/admin/widgets` directory. The file’s default export must be the widget, which is the React component that renders the custom content. The file must also export the widget’s configurations indicating where to insert the widget. +### Medusa Plugin -For example, create the file `src/admin/widgets/product-widget.tsx` with the following content: +```ts title="src/admin/lib/config.ts" +import Medusa from "@medusajs/js-sdk" -![Example of widget file in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732867137/Medusa%20Book/widget-dir-overview_dqsbct.jpg) +export const sdk = new Medusa({ + baseUrl: __BACKEND_URL__ || "/", + auth: { + type: "session", + }, +}) +``` -```tsx title="src/admin/widgets/product-widget.tsx" highlights={widgetHighlights} +Notice that you use `import.meta.env` in a Medusa project to access environment variables in your customizations, whereas in a plugin you use the global variable `__BACKEND_URL__` to access the backend URL. You can learn more in the [Admin Environment Variables](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md) chapter. + +Learn more about the JS SDK's configurations [this documentation](https://docs.medusajs.com/resources/js-sdk#js-sdk-configurations/index.html.md). + +Then, use the configured SDK with the `useQuery` Tanstack Query hook to send `GET` requests, and `useMutation` hook to send `POST` or `DELETE` requests. + +For example: + +### Query + +```tsx title="src/admin/widgets/product-widget.ts" highlights={queryHighlights} import { defineWidgetConfig } from "@medusajs/admin-sdk" -import { Container, Heading } from "@medusajs/ui" +import { Button, Container } from "@medusajs/ui" +import { useQuery } from "@tanstack/react-query" +import { sdk } from "../lib/config" +import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types" -// The widget const ProductWidget = () => { + const { data, isLoading } = useQuery({ + queryFn: () => sdk.admin.product.list(), + queryKey: ["products"], + }) + return ( -
- Product Widget -
+ {isLoading && Loading...} + {data?.products && ( +
    + {data.products.map((product) => ( +
  • {product.title}
    • + ))} +
+ )} ) } -// The widget's configurations export const config = defineWidgetConfig({ - zone: "product.details.before", + zone: "product.list.before", }) export default ProductWidget ``` -You export the `ProductWidget` component, which shows the heading `Product Widget`. In the widget, you use [Medusa UI](https://docs.medusajs.com/ui/index.html.md), a package that Medusa maintains to allow you to customize the dashboard with the same components used to build it. +### Mutation -To export the widget's configurations, you use `defineWidgetConfig` from the Admin Extension SDK. It accepts as a parameter an object with the `zone` property, whose value is a string or an array of strings, each being the name of the zone to inject the widget into. - -In the example above, the widget is injected at the top of a product’s details. - -The widget component must be created as an arrow function. - -### Test the Widget - -To test out the widget, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open a product’s details page. You’ll find your custom widget at the top of the page. - -*** - -## Props Passed in Detail Pages - -Widgets that are injected into a details page receive a `data` prop, which is the main data of the details page. - -For example, a widget injected into the `product.details.before` zone receives the product's details in the `data` prop: - -```tsx title="src/admin/widgets/product-widget.tsx" highlights={detailHighlights} +```tsx title="src/admin/widgets/product-widget.ts" highlights={mutationHighlights} import { defineWidgetConfig } from "@medusajs/admin-sdk" -import { Container, Heading } from "@medusajs/ui" -import { - DetailWidgetProps, - AdminProduct, -} from "@medusajs/framework/types" +import { Button, Container } from "@medusajs/ui" +import { useMutation } from "@tanstack/react-query" +import { sdk } from "../lib/config" +import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types" -// The widget const ProductWidget = ({ - data, -}: DetailWidgetProps) => { + data: productData, +}: DetailWidgetProps) => { + const { mutateAsync } = useMutation({ + mutationFn: (payload: HttpTypes.AdminUpdateProduct) => + sdk.admin.product.update(productData.id, payload), + onSuccess: () => alert("updated product"), + }) + + const handleUpdate = () => { + mutateAsync({ + title: "New Product Title", + }) + } + return ( -
- - Product Widget {data.title} - -
+ ) } -// The widget's configurations export const config = defineWidgetConfig({ zone: "product.details.before", }) @@ -5351,19 +7568,29 @@ export const config = defineWidgetConfig({ export default ProductWidget ``` -The props type is `DetailWidgetProps`, and it accepts as a type argument the expected type of `data`. For the product details page, it's `AdminProduct`. +You can also send requests to custom routes as explained in the [JS SDK reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). + +### Use Route Loaders for Initial Data + +You may need to retrieve data before your component is rendered, or you may need to pass some initial data to your component to be used while data is being fetched. In those cases, you can use a [route loader](https://docs.medusajs.com/learn/fundamentals/admin/routing/index.html.md). *** -## Injection Zone +## Global Variables in Admin Customizations -Refer to [this reference](https://docs.medusajs.com/resources/admin-widget-injection-zones/index.html.md) for the full list of injection zones and their props. +In your admin customizations, you can use the following global variables: + +- `__BASE__`: The base path of the Medusa Admin, as set in the [admin.path](https://docs.medusajs.com/learn/configurations/medusa-config#path/index.html.md) configuration in `medusa-config.ts`. +- `__BACKEND_URL__`: The URL to the Medusa backend, as set in the [admin.backendUrl](https://docs.medusajs.com/learn/configurations/medusa-config#backendurl/index.html.md) configuration in `medusa-config.ts`. +- `__STOREFRONT_URL__`: The URL to the storefront, as set in the [admin.storefrontUrl](https://docs.medusajs.com/learn/configurations/medusa-config#storefrontUrl/index.html.md) configuration in `medusa-config.ts`. *** -## Admin Components List +## Admin Translations -To build admin customizations that match the Medusa Admin's designs and layouts, refer to [this guide](https://docs.medusajs.com/resources/admin-components/index.html.md) to find common components. +The Medusa Admin dashboard can be displayed in languages other than English, which is the default. Other languages are added through community contributions. + +Learn how to add a new language translation for the Medusa Admin in [this guide](https://docs.medusajs.com/learn/resources/contribution-guidelines/admin-translations/index.html.md). # Admin UI Routes @@ -5602,6 +7829,125 @@ To build admin customizations that match the Medusa Admin's designs and layouts, For more customizations related to routes, refer to the [Routing Customizations chapter](https://docs.medusajs.com/learn/fundamentals/admin/routing/index.html.md). +# Admin Widgets + +In this chapter, you’ll learn more about widgets and how to use them. + +## What is an Admin Widget? + +The Medusa Admin dashboard's pages are customizable to insert widgets of custom content in pre-defined injection zones. You create these widgets as React components that allow admin users to perform custom actions. + +For example, you can add a widget on the product details page that allow admin users to sync products to a third-party service. + +*** + +## How to Create a Widget? + +### Prerequisites + +- [Medusa application installed](https://docs.medusajs.com/learn/installation/index.html.md) + +You create a widget in a `.tsx` file under the `src/admin/widgets` directory. The file’s default export must be the widget, which is the React component that renders the custom content. The file must also export the widget’s configurations indicating where to insert the widget. + +For example, create the file `src/admin/widgets/product-widget.tsx` with the following content: + +![Example of widget file in the application's directory structure](https://res.cloudinary.com/dza7lstvk/image/upload/v1732867137/Medusa%20Book/widget-dir-overview_dqsbct.jpg) + +```tsx title="src/admin/widgets/product-widget.tsx" highlights={widgetHighlights} +import { defineWidgetConfig } from "@medusajs/admin-sdk" +import { Container, Heading } from "@medusajs/ui" + +// The widget +const ProductWidget = () => { + return ( + +
+ Product Widget +
+ + ) +} + +// The widget's configurations +export const config = defineWidgetConfig({ + zone: "product.details.before", +}) + +export default ProductWidget +``` + +You export the `ProductWidget` component, which shows the heading `Product Widget`. In the widget, you use [Medusa UI](https://docs.medusajs.com/ui/index.html.md), a package that Medusa maintains to allow you to customize the dashboard with the same components used to build it. + +To export the widget's configurations, you use `defineWidgetConfig` from the Admin Extension SDK. It accepts as a parameter an object with the `zone` property, whose value is a string or an array of strings, each being the name of the zone to inject the widget into. + +In the example above, the widget is injected at the top of a product’s details. + +The widget component must be created as an arrow function. + +### Test the Widget + +To test out the widget, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +Then, open a product’s details page. You’ll find your custom widget at the top of the page. + +*** + +## Props Passed in Detail Pages + +Widgets that are injected into a details page receive a `data` prop, which is the main data of the details page. + +For example, a widget injected into the `product.details.before` zone receives the product's details in the `data` prop: + +```tsx title="src/admin/widgets/product-widget.tsx" highlights={detailHighlights} +import { defineWidgetConfig } from "@medusajs/admin-sdk" +import { Container, Heading } from "@medusajs/ui" +import { + DetailWidgetProps, + AdminProduct, +} from "@medusajs/framework/types" + +// The widget +const ProductWidget = ({ + data, +}: DetailWidgetProps) => { + return ( + +
+ + Product Widget {data.title} + +
+ + ) +} + +// The widget's configurations +export const config = defineWidgetConfig({ + zone: "product.details.before", +}) + +export default ProductWidget +``` + +The props type is `DetailWidgetProps`, and it accepts as a type argument the expected type of `data`. For the product details page, it's `AdminProduct`. + +*** + +## Injection Zone + +Refer to [this reference](https://docs.medusajs.com/resources/admin-widget-injection-zones/index.html.md) for the full list of injection zones and their props. + +*** + +## Admin Components List + +To build admin customizations that match the Medusa Admin's designs and layouts, refer to [this guide](https://docs.medusajs.com/resources/admin-components/index.html.md) to find common components. + + # Seed Data with Custom CLI Script In this chapter, you'll learn how to seed data using a custom CLI script. @@ -5790,262 +8136,1910 @@ npx medusa exec ./src/scripts/demo-products.ts This seeds the products to your database. If you run your Medusa application and view the products in the dashboard, you'll find fifty new products. -# Admin Development Tips +# Pass Additional Data to Medusa's API Route -In this chapter, you'll find some tips for your admin development. +In this chapter, you'll learn how to pass additional data in requests to Medusa's API Route. -## Send Requests to API Routes +## Why Pass Additional Data? -To send a request to an API route in the Medusa Application, use Medusa's [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) with [Tanstack Query](https://tanstack.com/query/latest). Both of these tools are installed in your project by default. +Some of Medusa's API Routes accept an `additional_data` parameter whose type is an object. The API Route passes the `additional_data` to the workflow, which in turn passes it to its hooks. -Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. +This is useful when you have a link from your custom module to a Commerce Module, and you want to perform an additional action when a request is sent to an existing API route. -First, create the file `src/admin/lib/config.ts` to setup the SDK for use in your customizations: +For example, the [Create Product API Route](https://docs.medusajs.com/api/admin#products_postproducts) accepts an `additional_data` parameter. If you have a data model linked to it, you consume the `productsCreated` hook to create a record of the data model using the custom data and link it to the product. -### Medusa Project +### API Routes Accepting Additional Data -```ts title="src/admin/lib/config.ts" -import Medusa from "@medusajs/js-sdk" +### API Routes List -export const sdk = new Medusa({ - baseUrl: import.meta.env.VITE_BACKEND_URL || "/", - debug: import.meta.env.DEV, - auth: { - type: "session", - }, -}) -``` - -### Medusa Plugin - -```ts title="src/admin/lib/config.ts" -import Medusa from "@medusajs/js-sdk" - -export const sdk = new Medusa({ - baseUrl: __BACKEND_URL__ || "/", - auth: { - type: "session", - }, -}) -``` - -Notice that you use `import.meta.env` in a Medusa project to access environment variables in your customizations, whereas in a plugin you use the global variable `__BACKEND_URL__` to access the backend URL. You can learn more in the [Admin Environment Variables](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md) chapter. - -Learn more about the JS SDK's configurations [this documentation](https://docs.medusajs.com/resources/js-sdk#js-sdk-configurations/index.html.md). - -Then, use the configured SDK with the `useQuery` Tanstack Query hook to send `GET` requests, and `useMutation` hook to send `POST` or `DELETE` requests. - -For example: - -### Query - -```tsx title="src/admin/widgets/product-widget.ts" highlights={queryHighlights} -import { defineWidgetConfig } from "@medusajs/admin-sdk" -import { Button, Container } from "@medusajs/ui" -import { useQuery } from "@tanstack/react-query" -import { sdk } from "../lib/config" -import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types" - -const ProductWidget = () => { - const { data, isLoading } = useQuery({ - queryFn: () => sdk.admin.product.list(), - queryKey: ["products"], - }) - - return ( - - {isLoading && Loading...} - {data?.products && ( -
    - {data.products.map((product) => ( -
  • {product.title}
    • - ))} -
- )} - - ) -} - -export const config = defineWidgetConfig({ - zone: "product.list.before", -}) - -export default ProductWidget -``` - -### Mutation - -```tsx title="src/admin/widgets/product-widget.ts" highlights={mutationHighlights} -import { defineWidgetConfig } from "@medusajs/admin-sdk" -import { Button, Container } from "@medusajs/ui" -import { useMutation } from "@tanstack/react-query" -import { sdk } from "../lib/config" -import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types" - -const ProductWidget = ({ - data: productData, -}: DetailWidgetProps) => { - const { mutateAsync } = useMutation({ - mutationFn: (payload: HttpTypes.AdminUpdateProduct) => - sdk.admin.product.update(productData.id, payload), - onSuccess: () => alert("updated product"), - }) - - const handleUpdate = () => { - mutateAsync({ - title: "New Product Title", - }) - } - - return ( - - - - ) -} - -export const config = defineWidgetConfig({ - zone: "product.details.before", -}) - -export default ProductWidget -``` - -You can also send requests to custom routes as explained in the [JS SDK reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). - -### Use Route Loaders for Initial Data - -You may need to retrieve data before your component is rendered, or you may need to pass some initial data to your component to be used while data is being fetched. In those cases, you can use a [route loader](https://docs.medusajs.com/learn/fundamentals/admin/routing/index.html.md). +- Campaigns + - [Create Campaign](https://docs.medusajs.com/api/admin#campaigns_postcampaigns) + - [Update Campaign](https://docs.medusajs.com/api/admin#campaigns_postcampaignsid) +- Cart + - [Create Cart](https://docs.medusajs.com/api/store#carts_postcarts) + - [Update Cart](https://docs.medusajs.com/api/store#carts_postcartsid) +- Collections + - [Create Collection](https://docs.medusajs.com/api/admin#collections_postcollections) + - [Update Collection](https://docs.medusajs.com/api/admin#collections_postcollectionsid) +- Customers + - [Create Customer](https://docs.medusajs.com/api/admin#customers_postcustomers) + - [Update Customer](https://docs.medusajs.com/api/admin#customers_postcustomersid) + - [Create Address](https://docs.medusajs.com/api/admin#customers_postcustomersidaddresses) + - [Update Address](https://docs.medusajs.com/api/admin#customers_postcustomersidaddressesaddress_id) +- Draft Orders + - [Create Draft Order](https://docs.medusajs.com/api/admin#draft-orders_postdraftorders) +- Orders + - [Complete Orders](https://docs.medusajs.com/api/admin#orders_postordersidcomplete) + - [Cancel Order's Fulfillment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillmentsfulfillment_idcancel) + - [Create Shipment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillmentsfulfillment_idshipments) + - [Create Fulfillment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillments) +- Products + - [Create Product](https://docs.medusajs.com/api/admin#products_postproducts) + - [Update Product](https://docs.medusajs.com/api/admin#products_postproductsid) + - [Create Product Variant](https://docs.medusajs.com/api/admin#products_postproductsidvariants) + - [Update Product Variant](https://docs.medusajs.com/api/admin#products_postproductsidvariantsvariant_id) + - [Create Product Option](https://docs.medusajs.com/api/admin#products_postproductsidoptions) + - [Update Product Option](https://docs.medusajs.com/api/admin#products_postproductsidoptionsoption_id) +- Product Tags + - [Create Product Tag](https://docs.medusajs.com/api/admin#product-tags_postproducttags) + - [Update Product Tag](https://docs.medusajs.com/api/admin#product-tags_postproducttagsid) +- Product Types + - [Create Product Type](https://docs.medusajs.com/api/admin#product-types_postproducttypes) + - [Update Product Type](https://docs.medusajs.com/api/admin#product-types_postproducttypesid) +- Promotions + - [Create Promotion](https://docs.medusajs.com/api/admin#promotions_postpromotions) + - [Update Promotion](https://docs.medusajs.com/api/admin#promotions_postpromotionsid) *** -## Global Variables in Admin Customizations +## How to Pass Additional Data -In your admin customizations, you can use the following global variables: +### 1. Specify Validation of Additional Data -- `__BASE__`: The base path of the Medusa Admin, as set in the [admin.path](https://docs.medusajs.com/learn/configurations/medusa-config#path/index.html.md) configuration in `medusa-config.ts`. -- `__BACKEND_URL__`: The URL to the Medusa backend, as set in the [admin.backendUrl](https://docs.medusajs.com/learn/configurations/medusa-config#backendurl/index.html.md) configuration in `medusa-config.ts`. -- `__STOREFRONT_URL__`: The URL to the storefront, as set in the [admin.storefrontUrl](https://docs.medusajs.com/learn/configurations/medusa-config#storefrontUrl/index.html.md) configuration in `medusa-config.ts`. +Before passing custom data in the `additional_data` object parameter, you must specify validation rules for the allowed properties in the object. -*** +To do that, use the middleware route object defined in `src/api/middlewares.ts`. -## Admin Translations +For example, create the file `src/api/middlewares.ts` with the following content: -The Medusa Admin dashboard can be displayed in languages other than English, which is the default. Other languages are added through community contributions. +```ts title="src/api/middlewares.ts" +import { defineMiddlewares } from "@medusajs/framework/http" +import { z } from "zod" -Learn how to add a new language translation for the Medusa Admin in [this guide](https://docs.medusajs.com/learn/resources/contribution-guidelines/admin-translations/index.html.md). - - -# Data Model Database Index - -In this chapter, you’ll learn how to define a database index on a data model. - -You can also define an index on a property as explained in the [Properties chapter](https://docs.medusajs.com/learn/fundamentals/data-models/properties#define-database-index-on-property/index.html.md). - -## Define Database Index on Data Model - -A data model has an `indexes` method that defines database indices on its properties. - -The index can be on multiple columns (composite index). For example: - -```ts highlights={dataModelIndexHighlights} -import { model } from "@medusajs/framework/utils" - -const MyCustom = model.define("my_custom", { - id: model.id().primaryKey(), - name: model.text(), - age: model.number(), -}).indexes([ - { - on: ["name", "age"], - }, -]) - -export default MyCustom -``` - -The `indexes` method receives an array of indices as a parameter. Each index is an object with a required `on` property indicating the properties to apply the index on. - -In the above example, you define a composite index on the `name` and `age` properties. - -### Index Conditions - -An index can have conditions. For example: - -```ts highlights={conditionHighlights} -import { model } from "@medusajs/framework/utils" - -const MyCustom = model.define("my_custom", { - id: model.id().primaryKey(), - name: model.text(), - age: model.number(), -}).indexes([ - { - on: ["name", "age"], - where: { - age: 30, - }, - }, -]) - -export default MyCustom -``` - -The index object passed to `indexes` accepts a `where` property whose value is an object of conditions. The object's key is a property's name, and its value is the condition on that property. - -In the example above, the composite index is created on the `name` and `age` properties when the `age`'s value is `30`. - -A property's condition can be a negation. For example: - -```ts highlights={negationHighlights} -import { model } from "@medusajs/framework/utils" - -const MyCustom = model.define("my_custom", { - id: model.id().primaryKey(), - name: model.text(), - age: model.number().nullable(), -}).indexes([ - { - on: ["name", "age"], - where: { - age: { - $ne: null, +export default defineMiddlewares({ + routes: [ + { + method: "POST", + matcher: "/admin/products", + additionalDataValidator: { + brand: z.string().optional(), }, }, - }, -]) - -export default MyCustom + ], +}) ``` -A property's value in `where` can be an object having a `$ne` property. `$ne`'s value indicates what the specified property's value shouldn't be. +The middleware route object accepts an optional parameter `additionalDataValidator` whose value is an object of key-value pairs. The keys indicate the name of accepted properties in the `additional_data` parameter, and the value is [Zod](https://zod.dev/) validation rules of the property. -In the example above, the composite index is created on the `name` and `age` properties when `age`'s value is not `null`. +In this example, you indicate that the `additional_data` parameter accepts a `brand` property whose value is an optional string. -### Unique Database Index +Refer to [Zod's documentation](https://zod.dev) for all available validation rules. -The object passed to `indexes` accepts a `unique` property indicating that the created index must be a unique index. +### 2. Pass the Additional Data in a Request + +You can now pass a `brand` property in the `additional_data` parameter of a request to the Create Product API Route. For example: -```ts highlights={uniqueHighlights} -import { model } from "@medusajs/framework/utils" - -const MyCustom = model.define("my_custom", { - id: model.id().primaryKey(), - name: model.text(), - age: model.number(), -}).indexes([ - { - on: ["name", "age"], - unique: true, - }, -]) - -export default MyCustom +```bash +curl -X POST 'http://localhost:9000/admin/products' \ +-H 'Content-Type: application/json' \ +-H 'Authorization: Bearer {token}' \ +--data '{ + "title": "Product 1", + "options": [ + { + "title": "Default option", + "values": ["Default option value"] + } + ], + "shipping_profile_id": "{shipping_profile_id}", + "additional_data": { + "brand": "Acme" + } +}' ``` -This creates a unique composite index on the `name` and `age` properties. +Make sure to replace the `{token}` in the authorization header with an admin user's authentication token, and `{shipping_profile_id}` with an existing shipping profile's ID. + +In this request, you pass in the `additional_data` parameter a `brand` property and set its value to `Acme`. + +The `additional_data` is then passed to hooks in the `createProductsWorkflow` used by the API route. + +*** + +## Use Additional Data in a Hook + +Learn about workflow hooks in [this guide](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md). + +Step functions consuming the workflow hook can access the `additional_data` in the first parameter. + +For example, consider you want to store the data passed in `additional_data` in the product's `metadata` property. + +To do that, create the file `src/workflows/hooks/product-created.ts` with the following content: + +```ts title="src/workflows/hooks/product-created.ts" +import { StepResponse } from "@medusajs/framework/workflows-sdk" +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" +import { Modules } from "@medusajs/framework/utils" + +createProductsWorkflow.hooks.productsCreated( + async ({ products, additional_data }, { container }) => { + if (!additional_data?.brand) { + return + } + + const productModuleService = container.resolve( + Modules.PRODUCT + ) + + await productModuleService.upsertProducts( + products.map((product) => ({ + ...product, + metadata: { + ...product.metadata, + brand: additional_data.brand, + }, + })) + ) + + return new StepResponse(products, { + products, + additional_data, + }) + } +) +``` + +This consumes the `productsCreated` hook, which runs after the products are created. + +If `brand` is passed in `additional_data`, you resolve the Product Module's main service and use its `upsertProducts` method to update the products, adding the brand to the `metadata` property. + +### Compensation Function + +Hooks also accept a compensation function as a second parameter to undo the actions made by the step function. + +For example, pass the following second parameter to the `productsCreated` hook: + +```ts title="src/workflows/hooks/product-created.ts" +createProductsWorkflow.hooks.productsCreated( + async ({ products, additional_data }, { container }) => { + // ... + }, + async ({ products, additional_data }, { container }) => { + if (!additional_data.brand) { + return + } + + const productModuleService = container.resolve( + Modules.PRODUCT + ) + + await productModuleService.upsertProducts( + products + ) + } +) +``` + +This updates the products to their original state before adding the brand to their `metadata` property. + + +# Handling CORS in API Routes + +In this chapter, you’ll learn about the CORS middleware and how to configure it for custom API routes. + +## CORS Overview + +Cross-Origin Resource Sharing (CORS) allows only configured origins to access your API Routes. + +For example, if you allow only origins starting with `http://localhost:7001` to access your Admin API Routes, other origins accessing those routes get a CORS error. + +### CORS Configurations + +The `storeCors` and `adminCors` properties of Medusa's `http` configuration set the allowed origins for routes starting with `/store` and `/admin` respectively. + +These configurations accept a URL pattern to identify allowed origins. + +For example: + +```js title="medusa-config.ts" +module.exports = defineConfig({ + projectConfig: { + http: { + storeCors: "http://localhost:8000", + adminCors: "http://localhost:7001", + // ... + }, + }, +}) +``` + +This allows the `http://localhost:7001` origin to access the Admin API Routes, and the `http://localhost:8000` origin to access Store API Routes. + +Learn more about the CORS configurations in [this resource guide](https://docs.medusajs.com/learn/configurations/medusa-config#http/index.html.md). + +*** + +## CORS in Store and Admin Routes + +To disable the CORS middleware for a route, export a `CORS` variable in the route file with its value set to `false`. + +For example: + +```ts title="src/api/store/custom/route.ts" highlights={[["15"]]} +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "[GET] Hello world!", + }) +} + +export const CORS = false +``` + +This disables the CORS middleware on API Routes at the path `/store/custom`. + +*** + +## CORS in Custom Routes + +If you create a route that doesn’t start with `/store` or `/admin`, you must apply the CORS middleware manually. Otherwise, all requests to your API route lead to a CORS error. + +You can do that in the exported middlewares configurations in `src/api/middlewares.ts`. + +For example: + +```ts title="src/api/middlewares.ts" highlights={highlights} collapsibleLines="1-10" expandButtonLabel="Show Imports" +import { defineMiddlewares } from "@medusajs/framework/http" +import type { + MedusaNextFunction, + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { ConfigModule } from "@medusajs/framework/types" +import { parseCorsOrigins } from "@medusajs/framework/utils" +import cors from "cors" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom*", + middlewares: [ + ( + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + const configModule: ConfigModule = + req.scope.resolve("configModule") + + return cors({ + origin: parseCorsOrigins( + configModule.projectConfig.http.storeCors + ), + credentials: true, + })(req, res, next) + }, + ], + }, + ], +}) +``` + +This retrieves the configurations exported from `medusa-config.ts` and applies the `storeCors` to routes starting with `/custom`. + + +# Middlewares + +In this chapter, you’ll learn about middlewares and how to create them. + +## What is a Middleware? + +A middleware is a function executed when a request is sent to an API Route. It's executed before the route handler function. + +Middlewares are used to guard API routes, parse request content types other than `application/json`, manipulate request data, and more. + +![Diagram showcasing how a middleware is executed when a request is sent to an API route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746775148/Medusa%20Book/middleware-overview_wc2ws5.jpg) + +As Medusa's server is based on Express, you can use any [Express middleware](https://expressjs.com/en/resources/middleware.html). + +### Middleware Types + +There are two types of middlewares: + +|Type|Description|Example| +|---|---|---| +|Global Middleware|A middleware that applies to all routes matching a specified pattern.|\`/custom\*\`| +|Route Middleware|A middleware that applies to routes matching a specified pattern and HTTP method(s).|A middleware that applies to all | + +These middlewares generally have the same definition and usage, but they differ in the routes they apply to. You'll learn how to create both types in the following sections. + +*** + +## How to Create a Middleware? + +Middlewares of all types are defined in the special file `src/api/middlewares.ts`. Use the `defineMiddlewares` function from the Medusa Framework to define the middlewares, and export its value. + +For example: + +### Global Middleware + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + MedusaNextFunction, + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom*", + middlewares: [ + ( + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + console.log("Received a request!") + + next() + }, + ], + }, + ], +}) +``` + +### Route Middleware + +```ts title="src/api/middlewares.ts" highlights={highlights} +import { + defineMiddlewares, + MedusaNextFunction, + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom*", + method: ["POST", "PUT"], + middlewares: [ + ( + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + console.log("Received a request!") + + next() + }, + ], + }, + ], +}) +``` + +The `defineMiddlewares` function accepts a middleware configurations object that has the property `routes`. `routes`'s value is an array of middleware route objects, each having the following properties: + +- `matcher`: a string or regular expression indicating the API route path to apply the middleware on. The regular expression must be compatible with [path-to-regexp](https://github.com/pillarjs/path-to-regexp). +- `middlewares`: An array of global and route middleware functions. +- `method`: (optional) By default, a middleware is applied on all HTTP methods for a route. You can specify one or more HTTP methods to apply the middleware to in this option, making it a route middleware. + +### Test the Middleware + +To test the middleware: + +1. Start the application: + +```bash npm2yarn +npm run dev +``` + +2. Send a request to any API route starting with `/custom`. If you specified an HTTP method in the `method` property, make sure to use that method. +3. See the following message in the terminal: + +```bash +Received a request! +``` + +*** + +## When to Use Middlewares + +Middlewares are useful for: + +- [Protecting API routes](https://docs.medusajs.com/learn/fundamentals/api-routes/protected-routes/index.html.md) to ensure that only authenticated users can access them. +- [Validating](https://docs.medusajs.com/learn/fundamentals/api-routes/validation/index.html.md) request query and body parameters. +- [Parsing](https://docs.medusajs.com/learn/fundamentals/api-routes/parse-body/index.html.md) request content types other than `application/json`. +- [Applying CORS](https://docs.medusajs.com/learn/fundamentals/api-routes/cors/index.html.md) configurations to custom API routes. + +*** + +## Middleware Function Parameters + +The middleware function accepts three parameters: + +1. A request object of type `MedusaRequest`. +2. A response object of type `MedusaResponse`. +3. A function of type `MedusaNextFunction` that executes the next middleware in the stack. + +You must call the `next` function in the middleware. Otherwise, other middlewares and the API route handler won’t execute. + +For example: + +```ts title="src/api/middlewares.ts" +import { + MedusaNextFunction, + MedusaRequest, + MedusaResponse, + defineMiddlewares, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom*", + middlewares: [ + ( + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + console.log("Received a request!", req.body) + + next() + }, + ], + }, + ], +}) +``` + +This middleware logs the request body to the terminal, then calls the `next` function to execute the next middleware in the stack. + +*** + +## Middleware for Routes with Path Parameters + +To indicate a path parameter in a middleware's `matcher` pattern, use the format `:{param-name}`. + +A middleware applied on a route with path parameters is a route middleware. + +For example: + +```ts title="src/api/middlewares.ts" collapsibleLines="1-7" expandMoreLabel="Show Imports" highlights={pathParamHighlights} +import { + MedusaNextFunction, + MedusaRequest, + MedusaResponse, + defineMiddlewares, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom/:id", + middlewares: [ + // ... + ], + }, + ], +}) +``` + +This applies a middleware to the routes defined in the file `src/api/custom/[id]/route.ts`. + +*** + +## Request URLs with Trailing Backslashes + +A middleware whose `matcher` pattern doesn't end with a backslash won't be applied for requests to URLs with a trailing backslash. + +For example, consider you have the following middleware: + +```ts title="src/api/middlewares.ts" collapsibleLines="1-7" expandMoreLabel="Show Imports" +import { + MedusaNextFunction, + MedusaRequest, + MedusaResponse, + defineMiddlewares, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom", + middlewares: [ + ( + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + console.log("Received a request!") + + next() + }, + ], + }, + ], +}) +``` + +If you send a request to `http://localhost:9000/custom`, the middleware will run. + +However, if you send a request to `http://localhost:9000/custom/`, the middleware won't run. + +In general, avoid adding trailing backslashes when sending requests to API routes. + +*** + +## How Are Middlewares Ordered and Applied? + +The information explained in this section is applicable starting from [Medusa v2.6](https://github.com/medusajs/medusa/releases/tag/v2.6). + +### Middleware and Routes Execution Order + +The Medusa application registers middlewares and API route handlers in the following order, stacking them on top of each other: + +![Diagram showcasing the order in which middlewares and route handlers are registered.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746776911/Medusa%20Book/middleware-registration-overview_spc02f.jpg) + +1. Global middlewares in the following order: + 1. Global middleware defined in the Medusa's core. + 2. Global middleware defined in the plugins (in the order the plugins are registered in). + 3. Global middleware you define in the application. +2. Route middlewares in the following order: + 1. Route middleware defined in the Medusa's core. + 2. Route middleware defined in the plugins (in the order the plugins are registered in). + 3. Route middleware you define in the application. +3. API routes in the following order: + 1. API routes defined in the Medusa's core. + 2. API routes defined in the plugins (in the order the plugins are registered in). + 3. API routes you define in the application. + +Then, when a request is sent to an API route, the stack is executed in order: global middlewares are executed first, then the route middlewares, and finally the route handlers. + +![Diagram showcasing the order in which middlewares and route handlers are executed when a request is sent to an API route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746776172/Medusa%20Book/middleware-order-overview_h7kzfl.jpg) + +For example, consider you have the following middlewares: + +```ts title="src/api/middlewares.ts" +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom", + middlewares: [ + (req, res, next) => { + console.log("Global middleware") + next() + }, + ], + }, + { + matcher: "/custom", + method: ["GET"], + middlewares: [ + (req, res, next) => { + console.log("Route middleware") + next() + }, + ], + }, + ], +}) +``` + +When you send a request to `/custom` route, the following messages are logged in the terminal: + +```bash +Global middleware +Route middleware +Hello from custom! # message logged from API route handler +``` + +The global middleware runs first, then the route middleware, and finally the route handler, assuming that it logs the message `Hello from custom!`. + +### Middlewares Sorting + +On top of the previous ordering, Medusa sorts global and route middlewares based on their matcher pattern in the following order: + +1. Wildcard matchers. For example, `/custom*`. +2. Regex matchers. For example, `/custom/(products|collections)`. +3. Static matchers without parameters. For example, `/custom`. +4. Static matchers with parameters. For example, `/custom/:id`. + +For example, if you have the following middlewares: + +```ts title="src/api/middlewares.ts" +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom/:id", + middlewares: [/* ... */], + }, + { + matcher: "/custom", + middlewares: [/* ... */], + }, + { + matcher: "/custom*", + method: ["GET"], + middlewares: [/* ... */], + }, + { + matcher: "/custom/:id", + method: ["GET"], + middlewares: [/* ... */], + }, + ], +}) +``` + +The global middlewares are sorted into the following order before they're registered: + +1. Global middleware `/custom`. +2. Global middleware `/custom/:id`. + +And the route middlewares are sorted into the following order before they're registered: + +1. Route middleware `/custom*`. +2. Route middleware `/custom/:id`. + +![Diagram showcasing the order in which middlewares are sorted before being registered.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746777297/Medusa%20Book/middleware-registration-sorting_oyfqhw.jpg) + +Then, the middlwares are registered in the order mentioned earlier, with global middlewares first, then the route middlewares. + +*** + +## Overriding Middlewares + +A middleware can not override an existing middleware. Instead, middlewares are added to the end of the middleware stack. + +For example, if you define a custom validation middleware, such as `validateAndTransformBody`, on an existing route, then both the original and the custom validation middleware will run. + +Similarly, if you add an [authenticate](https://docs.medusajs.com/learn/fundamentals/api-routes/protected-routes#protect-custom-api-routes/index.html.md) middleware to an existing route, both the original and the custom authentication middleware will run. So, you can't override the original authentication middleware. + +### Alternative Solution to Overriding Middlewares + +If you need to change the middlewares applied to a route, you can create a custom [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) that executes the same functionality as the original route, but with the middlewares you want. + +Learn more in the [Override API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/override/index.html.md) chapter. + + +# HTTP Methods + +In this chapter, you'll learn about how to add new API routes for each HTTP method. + +## HTTP Method Handler + +An API route is created for every HTTP method you export a handler function for in a route file. + +Allowed HTTP methods are: `GET`, `POST`, `DELETE`, `PUT`, `PATCH`, `OPTIONS`, and `HEAD`. + +For example, create the file `src/api/hello-world/route.ts` with the following content: + +```ts title="src/api/hello-world/route.ts" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "[GET] Hello world!", + }) +} + +export const POST = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "[POST] Hello world!", + }) +} +``` + +This adds two API Routes: + +- A `GET` route at `http://localhost:9000/hello-world`. +- A `POST` route at `http://localhost:9000/hello-world`. + + +# Throwing and Handling Errors + +In this guide, you'll learn how to throw errors in your Medusa application, how it affects an API route's response, and how to change the default error handler of your Medusa application. + +## Throw MedusaError + +When throwing an error in your API routes, middlewares, workflows, or any customization, throw a `MedusaError` from the Medusa Framework. + +The Medusa application's API route error handler then wraps your thrown error in a uniform object and returns it in the response. + +For example: + +```ts +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" +import { MedusaError } from "@medusajs/framework/utils" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + if (!req.query.q) { + throw new MedusaError( + MedusaError.Types.INVALID_DATA, + "The `q` query parameter is required." + ) + } + + // ... +} +``` + +The `MedusaError` class accepts in its constructor two parameters: + +1. The first is the error's type. `MedusaError` has a static property `Types` that you can use. `Types` is an enum whose possible values are explained in the next section. +2. The second is the message to show in the error response. + +### Error Object in Response + +The error object returned in the response has two properties: + +- `type`: The error's type. +- `message`: The error message, if available. +- `code`: A common snake-case code. Its values can be: + - `invalid_request_error` for the `DUPLICATE_ERROR` type. + - `api_error`: for the `DB_ERROR` type. + - `invalid_state_error` for `CONFLICT` error type. + - `unknown_error` for any unidentified error type. + - For other error types, this property won't be available unless you provide a code as a third parameter to the `MedusaError` constructor. + +### MedusaError Types + +|Type|Description|Status Code| +|---|---|---|---|---| +|\`DB\_ERROR\`|Indicates a database error.|\`500\`| +|\`DUPLICATE\_ERROR\`|Indicates a duplicate of a record already exists. For example, when trying to create a customer whose email is registered by another customer.|\`422\`| +|\`INVALID\_ARGUMENT\`|Indicates an error that occurred due to incorrect arguments or other unexpected state.|\`500\`| +|\`INVALID\_DATA\`|Indicates a validation error.|\`400\`| +|\`UNAUTHORIZED\`|Indicates that a user is not authorized to perform an action or access a route.|\`401\`| +|\`NOT\_FOUND\`|Indicates that the requested resource, such as a route or a record, isn't found.|\`404\`| +|\`NOT\_ALLOWED\`|Indicates that an operation isn't allowed.|\`400\`| +|\`CONFLICT\`|Indicates that a request conflicts with another previous or ongoing request. The error message in this case is ignored for a default message.|\`409\`| +|\`PAYMENT\_AUTHORIZATION\_ERROR\`|Indicates an error has occurred while authorizing a payment.|\`422\`| +|Other error types|Any other error type results in an |\`500\`| + +*** + +## Override Error Handler + +The `defineMiddlewares` function used to apply middlewares on routes accepts an `errorHandler` in its object parameter. Use it to override the default error handler for API routes. + +This error handler will also be used for errors thrown in Medusa's API routes and resources. + +For example, create `src/api/middlewares.ts` with the following: + +```ts title="src/api/middlewares.ts" collapsibleLines="1-8" expandMoreLabel="Show Imports" +import { + defineMiddlewares, + MedusaNextFunction, + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { MedusaError } from "@medusajs/framework/utils" + +export default defineMiddlewares({ + errorHandler: ( + error: MedusaError | any, + req: MedusaRequest, + res: MedusaResponse, + next: MedusaNextFunction + ) => { + res.status(400).json({ + error: "Something happened.", + }) + }, +}) +``` + +The `errorHandler` property's value is a function that accepts four parameters: + +1. The error thrown. Its type can be `MedusaError` or any other thrown error type. +2. A request object of type `MedusaRequest`. +3. A response object of type `MedusaResponse`. +4. A function of type MedusaNextFunction that executes the next middleware in the stack. + +This example overrides Medusa's default error handler with a handler that always returns a `400` status code with the same message. + + +# Override API Routes + +In this chapter, you'll learn the approach recommended when you need to override an existing API route in Medusa. + +## Approaches to Consider Before Overriding API Routes + +While building customizations in your Medusa application, you may need to make changes to existing API routes for your business use case. + +Medusa provides the following approaches to customize API routes: + +|Approach|Description| +|---|---| +|Pass Additional Data|Pass custom data to the API route with custom validation.| +|Perform Custom Logic within an Existing Flows|API routes execute workflows to perform business logic, which may have hooks that allow you to perform custom logic.| +|Use Custom Middlewares|Use custom middlewares to perform custom logic before the API route is executed. However, you cannot remove or replace middlewares applied to existing API routes.| +|Listen to Events in Subscribers|Functionalities in API routes may trigger events that you can handle in subscribers. This is useful if you're performing an action that isn't integral to the API route's core functionality or response.| + +If the above approaches do not meet your needs, you can consider the approaches mentioned in the rest of this chapter. + +*** + +## Replicate, Don't Override API Routes + +If the approaches mentioned in the [section above](#approaches-to-consider-before-overriding-api-routes) do not meet your needs, you can replicate an existing API route and modify it to suit your requirements. + +By replicating instead of overriding, the original API route remains intact, allowing you to easily revert to the original functionality if needed. You can also update your Medusa version without worrying about breaking changes in the original API route. + +*** + +## How to Replicate an API Route? + +Medusa's API routes are generally slim and use logic contained in [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). So, creating a custom route based on the original route is straightforward. + +You can view the source code for Medusa's API routes in the [Medusa GitHub repository](https://github.com/medusajs/medusa/tree/develop/packages/medusa/src/api). + +For example, if you need to allow vendors to access the `POST /admin/products` API route, you can create an API route in your Medusa project at `src/api/vendor/products/route.ts` with the [same code as the original route](https://github.com/medusajs/medusa/blob/develop/packages/medusa/src/api/admin/products/route.ts#L88). Then, you can make changes to it or its middlewares. + +*** + +## When to Replicate an API Route? + +Some examples of when you might want to replicate an API route include: + +|Use Case|Description| +|---|---| +|Custom Validation|You want to change the validation logic for a specific API route, and the | +|Change Authentication|You want to remove required authentication for a specific API route, or you want to allow custom | +|Custom Response|You want to change the response format of an existing API route.| +|Override Middleware|You want to override the middleware applied on existing API routes. Because of | + + +# API Route Parameters + +In this chapter, you’ll learn about path, query, and request body parameters. + +## Path Parameters + +To create an API route that accepts a path parameter, create a directory within the route file's path whose name is of the format `[param]`. + +For example, to create an API Route at the path `/hello-world/:id`, where `:id` is a path parameter, create the file `src/api/hello-world/[id]/route.ts` with the following content: + +```ts title="src/api/hello-world/[id]/route.ts" highlights={singlePathHighlights} +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: `[GET] Hello ${req.params.id}!`, + }) +} +``` + +The `MedusaRequest` object has a `params` property. `params` holds the path parameters in key-value pairs. + +### Multiple Path Parameters + +To create an API route that accepts multiple path parameters, create within the file's path multiple directories whose names are of the format `[param]`. + +For example, to create an API route at `/hello-world/:id/name/:name`, create the file `src/api/hello-world/[id]/name/[name]/route.ts` with the following content: + +```ts title="src/api/hello-world/[id]/name/[name]/route.ts" highlights={multiplePathHighlights} +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: `[GET] Hello ${ + req.params.id + } - ${req.params.name}!`, + }) +} +``` + +You access the `id` and `name` path parameters using the `req.params` property. + +*** + +## Query Parameters + +You can access all query parameters in the `query` property of the `MedusaRequest` object. `query` is an object of key-value pairs, where the key is a query parameter's name, and the value is its value. + +For example: + +```ts title="src/api/hello-world/route.ts" highlights={queryHighlights} +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: `Hello ${req.query.name}`, + }) +} +``` + +The value of `req.query.name` is the value passed in `?name=John`, for example. + +### Validate Query Parameters + +You can apply validation rules on received query parameters to ensure they match specified rules and types. + +Learn more in [this documentation](https://docs.medusajs.com/learn/fundamentals/api-routes/validation#how-to-validate-request-query-paramters/index.html.md). + +*** + +## Request Body Parameters + +The Medusa application parses the body of any request having a JSON, URL-encoded, or text request content types. The request body parameters are set in the `MedusaRequest`'s `body` property. + +Learn more about configuring body parsing in [this guide](https://docs.medusajs.com/learn/fundamentals/api-routes/parse-body/index.html.md). + +For example: + +```ts title="src/api/hello-world/route.ts" highlights={bodyHighlights} +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +type HelloWorldReq = { + name: string +} + +export const POST = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: `[POST] Hello ${req.body.name}!`, + }) +} +``` + +In this example, you use the `name` request body parameter to create the message in the returned response. + +The `MedusaRequest` type accepts a type argument that indicates the type of the request body. This is useful for auto-completion and to avoid typing errors. + +To test it out, send the following request to your Medusa application: + +```bash +curl -X POST 'http://localhost:9000/hello-world' \ +-H 'Content-Type: application/json' \ +--data-raw '{ + "name": "John" +}' +``` + +This returns the following JSON object: + +```json +{ + "message": "[POST] Hello John!" +} +``` + +### Validate Body Parameters + +You can apply validation rules on received body parameters to ensure they match specified rules and types. + +Learn more in [this documentation](https://docs.medusajs.com/learn/fundamentals/api-routes/validation#how-to-validate-request-body/index.html.md). + + +# Configure Request Body Parser + +In this chapter, you'll learn how to configure the request body parser for your API routes. + +## Default Body Parser Configuration + +The Medusa application configures the body parser by default to parse JSON, URL-encoded, and text request content types. You can parse other data types by adding the relevant [Express middleware](https://expressjs.com/en/guide/using-middleware.html) or preserve the raw body data by configuring the body parser, which is useful for webhook requests. + +This chapter shares some examples of configuring the body parser for different data types or use cases. + +*** + +## Preserve Raw Body Data for Webhooks + +If your API route receives webhook requests, you might want to preserve the raw body data. To do this, you can configure the body parser to parse the raw body data and store it in the `req.rawBody` property. + +To do that, create the file `src/api/middlewares.ts` with the following content: + +```ts title="src/api/middlewares.ts" highlights={preserveHighlights} +import { defineMiddlewares } from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + method: ["POST"], + bodyParser: { preserveRawBody: true }, + matcher: "/custom", + }, + ], +}) +``` + +The middleware route object passed to `routes` accepts a `bodyParser` property whose value is an object of configuration for the default body parser. By enabling the `preserveRawBody` property, the raw body data is preserved and stored in the `req.rawBody` property. + +Learn more about [middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). + +You can then access the raw body data in your API route handler: + +```ts title="src/api/custom/route.ts" +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export async function POST( + req: MedusaRequest, + res: MedusaResponse +) { + console.log(req.rawBody) + + // TODO use raw body +} +``` + +*** + +## Configure Request Body Size Limit + +By default, the body parser limits the request body size to `100kb`. If a request body exceeds that size, the Medusa application throws an error. + +You can configure the body parser to accept larger request bodies by setting the `sizeLimit` property of the `bodyParser` object in a middleware route object. For example: + +```ts title="src/api/middlewares.ts" highlights={sizeLimitHighlights} +import { defineMiddlewares } from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + method: ["POST"], + bodyParser: { sizeLimit: "2mb" }, + matcher: "/custom", + }, + ], +}) +``` + +The `sizeLimit` property accepts one of the following types of values: + +- A string representing the size limit in bytes (For example, `100kb`, `2mb`, `5gb`). It is passed to the [bytes](https://www.npmjs.com/package/bytes) library to parse the size. +- A number representing the size limit in bytes. For example, `1024` for 1kb. + +*** + +## Configure File Uploads + +To accept file uploads in your API routes, you can configure the [Express Multer middleware](https://expressjs.com/en/resources/middleware/multer.html) on your route. + +The `multer` package is available through the `@medusajs/medusa` package, so you don't need to install it. However, for better typing support, install the `@types/multer` package as a development dependency: + +```bash npm2yarn +npm install --save-dev @types/multer +``` + +Then, to configure file upload for your route, create the file `src/api/middlewares.ts` with the following content: + +```ts title="src/api/middlewares.ts" highlights={uploadHighlights} +import { defineMiddlewares } from "@medusajs/framework/http" +import multer from "multer" + +const upload = multer({ storage: multer.memoryStorage() }) + +export default defineMiddlewares({ + routes: [ + { + method: ["POST"], + matcher: "/custom", + middlewares: [ + // @ts-ignore + upload.array("files"), + ], + }, + ], +}) +``` + +In the example above, you configure the `multer` middleware to store the uploaded files in memory. Then, you apply the `upload.array("files")` middleware to the route to accept file uploads. By using the `array` method, you accept multiple file uploads with the same `files` field name. + +You can then access the uploaded files in your API route handler: + +```ts title="src/api/custom/route.ts" +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export async function POST( + req: MedusaRequest, + res: MedusaResponse +) { + const files = req.files as Express.Multer.File[] + + // TODO handle files +} +``` + +The uploaded files are stored in the `req.files` property as an array of Multer file objects that have properties like `filename` and `mimetype`. + +### Uploading Files using File Module Provider + +The recommended way to upload the files to storage using the configured [File Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/file/index.html.md) is to use the [uploadFilesWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/uploadFilesWorkflow/index.html.md): + +```ts title="src/api/custom/route.ts" +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" +import { MedusaError } from "@medusajs/framework/utils" +import { uploadFilesWorkflow } from "@medusajs/medusa/core-flows" + +export async function POST( + req: MedusaRequest, + res: MedusaResponse +) { + const files = req.files as Express.Multer.File[] + + if (!files?.length) { + throw new MedusaError( + MedusaError.Types.INVALID_DATA, + "No files were uploaded" + ) + } + + const { result } = await uploadFilesWorkflow(req.scope).run({ + input: { + files: files?.map((f) => ({ + filename: f.originalname, + mimeType: f.mimetype, + content: f.buffer.toString("binary"), + access: "public", + })), + }, + }) + + res.status(200).json({ files: result }) +} +``` + +Check out the [uploadFilesWorkflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/uploadFilesWorkflow/index.html.md) for details on the expected input and output of the workflow. + + +# Protected API Routes + +In this chapter, you’ll learn how to create protected API routes. + +## What is a Protected API Route? + +By default, an API route is publicly accessible, meaning that any user can access it without authentication. This is useful for public API routes that allow users to browse products, view collections, and so on. + +A protected API route is an API route that requires requests to be user-authenticated before performing the route's functionality. Otherwise, the request fails, and the user is prevented access. + +Protected API routes are useful for routes that require user authentication, such as creating a product or managing an order. These routes must only be accessed by authenticated admin users. + +Refer to the API Reference for [Admin](https://docs.medusajs.com/api/admin#authentication) and [Store](https://docs.medusajs.com/api/store#authentication) to learn how to send authenticated requests. + +*** + +## Default Protected Routes + +Any API route, including your custom API routes, are protected if they start with the following prefixes: + +|Route Prefix|Access| +|---|---| +|\`/admin\`|Only authenticated admin users can access.| +|\`/store/customers/me\`|Only authenticated customers can access.| + +Refer to the API Reference for [Admin](https://docs.medusajs.com/api/admin#authentication) and [Store](https://docs.medusajs.com/api/store#authentication) to learn how to send authenticated requests. + +### Opt-Out of Default Authentication Requirement + +If you create a custom API route under a prefix that is protected by default, you can opt-out of the authentication requirement by exporting an `AUTHENTICATE` variable in the route file with its value set to `false`. + +For example, to disable authentication requirement for a custom API route created at `/admin/custom`, you can export an `AUTHENTICATE` variable in the route file: + +```ts title="src/api/admin/custom/route.ts" highlights={[["15"]]} +import type { + AuthenticatedMedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: AuthenticatedMedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "Hello", + }) +} + +export const AUTHENTICATE = false +``` + +Now, any request sent to the `/admin/custom` API route is allowed, regardless if the admin user is authenticated. + +*** + +## Protect Custom API Routes + +You can protect API routes using the `authenticate` [middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) from the Medusa Framework. When applied to a route, the middleware checks that: + +- The correct actor type (for example, `user`, `customer`, or a custom actor type) is authenticated. +- The correct authentication method is used (for example, `session`, `bearer`, or `api-key`). + +For example, you can add the `authenticate` middleware in the `src/api/middlewares.ts` file to protect a custom API route: + +```ts title="src/api/middlewares.ts" highlights={highlights} +import { + defineMiddlewares, + authenticate, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom/admin*", + middlewares: [authenticate("user", ["session", "bearer", "api-key"])], + }, + { + matcher: "/custom/customer*", + middlewares: [authenticate("customer", ["session", "bearer"])], + }, + ], +}) +``` + +The `authenticate` middleware function accepts three parameters: + +1. The type of user authenticating. Use `user` for authenticating admin users, and `customer` for authenticating customers. You can also pass `*` to allow all types of users, or pass an array of actor types. +2. An array of types of authentication methods allowed. Both `user` and `customer` scopes support `session` and `bearer`. The `admin` scope also supports the `api-key` authentication method. +3. An optional object of configurations accepting the following properties: + - `allowUnauthenticated`: (default: `false`) A boolean indicating whether authentication is required. For example, you may have an API route where you want to access the logged-in customer if available, but guest customers can still access it too. + - `allowUnregistered` (default: `false`): A boolean indicating if unregistered users should be allowed access. This is useful when you want to allow users who aren’t registered to access certain routes. + +### Example: Custom Actor Type + +For example, to require authentication of a custom actor type `manager` to an API route: + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + authenticate, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/manager*", + middlewares: [authenticate("manager", ["session", "bearer"])], + }, + ], +}) +``` + +Refer to the [Custom Actor-Type Guide](https://docs.medusajs.com/resources/commerce-modules/auth/create-actor-type/index.html.md) for detailed explanation on how to create a custom actor type and apply authentication middlewares. + +### Example: Allow Multiple Actor Types + +To allow multiple actor types to access an API route, pass an array of actor types to the `authenticate` middleware: + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + authenticate, +} from "@medusajs/framework/http" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom*", + middlewares: [authenticate(["user", "customer"], ["session", "bearer"])], + }, + ], +}) +``` + +### Override Authentication for Medusa's API Routes + +In some cases, you may want to override the authentication requirement for Medusa's API routes. For example, you may want to allow custom actor types to access existing protected API routes. + +It's not possible to change the [authentication middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) applied to an existing API route. Instead, you need to replicate the API route and apply the authentication middleware to it. + +Learn more in the [Override API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/override/index.html.md) chapter. + +*** + +## Access Authentication Details in API Routes + +To access the authentication details in an API route, such as the logged-in user's ID, set the type of the first request parameter to `AuthenticatedMedusaRequest`. It extends `MedusaRequest`: + +```ts highlights={[["7", "AuthenticatedMedusaRequest"]]} +import type { + AuthenticatedMedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: AuthenticatedMedusaRequest, + res: MedusaResponse +) => { + // ... +} +``` + +The `auth_context.actor_id` property of `AuthenticatedMedusaRequest` holds the ID of the authenticated user or customer. If there isn't any authenticated user or customer, `auth_context` is `undefined`. + +For example: + +```ts title="src/api/store/custom/route.ts" highlights={[["10", "actor_id"]]} +import type { + AuthenticatedMedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: AuthenticatedMedusaRequest, + res: MedusaResponse +) => { + const id = req.auth_context?.actor_id + + // ... +} +``` + +In this example, you retrieve the ID of the authenticated user, customer, or custom actor type from the `auth_context` property of the `AuthenticatedMedusaRequest` object. + +If you opt-out of authentication in a route as mentioned in the [Opt-Out section](#opt-out-of-default-authentication-requirement), you can't access the authenticated user or customer anymore. Use the [authenticate middleware](#protect-custom-api-routes) instead to protect the route. + +### Retrieve Logged-In Customer's Details + +You can access the logged-in customer’s ID in all API routes starting with `/store` using the `auth_context.actor_id` property of the `AuthenticatedMedusaRequest` object. You can then use [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve the customer details, or pass the ID to a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) that performs business logic. + +For example: + +```ts title="src/api/store/custom/route.ts" highlights={customerHighlights} +import type { + AuthenticatedMedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: AuthenticatedMedusaRequest, + res: MedusaResponse +) => { + const customerId = req.auth_context?.actor_id + const query = req.scope.resolve("query") + + const { data: [customer] } = await query.graph({ + entity: "customer", + fields: ["*"], + filters: { + id: customerId, + }, + }, { + throwIfKeyNotFound: true, + }) + + // do something with the customer data... +} +``` + +In this example, you retrieve the customer's ID and resolve Query from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). + +Then, you use Query to retrieve the customer details. The `throwIfKeyNotFound` option throws an error if the customer with the specified ID is not found. + +After that, you can use the customer's details in your API route. + +### Retrieve Logged-In Admin User's Details + +You can access the logged-in admin user’s ID in all API routes starting with `/admin` using the `auth_context.actor_id` property of the `AuthenticatedMedusaRequest` object. You can then use [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve the user details, or pass the ID to a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) that performs business logic. + +For example: + +```ts title="src/api/admin/custom/route.ts" highlights={adminHighlights} +import type { + AuthenticatedMedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" + +export const GET = async ( + req: AuthenticatedMedusaRequest, + res: MedusaResponse +) => { + const userId = req.auth_context?.actor_id + const query = req.scope.resolve("query") + + const { data: [user] } = await query.graph({ + entity: "user", + fields: ["*"], + filters: { + id: userId, + }, + }, { + throwIfKeyNotFound: true, + }) + + // do something with the user data... +} +``` + +In this example, you retrieve the admin user's ID and resolve Query from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). + +Then, you use Query to retrieve the user details. The `throwIfKeyNotFound` option throws an error if the user with the specified ID is not found. + +After that, you can use the user's details in your API route. + + +# API Route Response + +In this chapter, you'll learn how to send a response in your API route. + +## Send a JSON Response + +To send a JSON response, use the `json` method of the `MedusaResponse` object passed as the second parameter of your API route handler. + +For example: + +```ts title="src/api/custom/route.ts" highlights={jsonHighlights} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + message: "Hello, World!", + }) +} +``` + +This API route returns the following JSON object: + +```json +{ + "message": "Hello, World!" +} +``` + +*** + +## Set Response Status Code + +By default, setting the JSON data using the `json` method returns a response with a `200` status code. + +To change the status code, use the `status` method of the `MedusaResponse` object. + +For example: + +```ts title="src/api/custom/route.ts" highlights={statusHighlight} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.status(201).json({ + message: "Hello, World!", + }) +} +``` + +The response of this API route has the status code `201`. + +*** + +## Change Response Content Type + +To return response data other than a JSON object, use the `writeHead` method of the `MedusaResponse` object. It allows you to set the response headers, including the content type. + +For example, to create an API route that returns an event stream: + +```ts highlights={streamHighlights} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.writeHead(200, { + "Content-Type": "text/event-stream", + "Cache-Control": "no-cache", + Connection: "keep-alive", + }) + + const interval = setInterval(() => { + res.write("Streaming data...\n") + }, 3000) + + req.on("end", () => { + clearInterval(interval) + res.end() + }) +} +``` + +The `writeHead` method accepts two parameters: + +1. The first one is the response's status code. +2. The second is an object of key-value pairs to set the headers of the response. + +This API route opens a stream by setting the `Content-Type` in the header to `text/event-stream`. It then simulates a stream by creating an interval that writes the stream data every three seconds. + +*** + +## Do More with Responses + +The `MedusaResponse` type is based on [Express's Response](https://expressjs.com/en/api.html#res). Refer to their API reference for other uses of responses. + + +# Retrieve Custom Links from Medusa's API Route + +In this chapter, you'll learn how to retrieve custom data models linked to existing Medusa data models from Medusa's API routes. + +## Why Retrieve Custom Linked Data Models? + +Often, you'll link custom data models to existing Medusa data models to implement custom features or expand on existing ones. + +For example, to add brands for products, you can create a `Brand` data model in a Brand Module, then [define a link](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) to the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md)'s `Product` data model. + +When you implement this customization, you might need to retrieve the brand of a product using the existing [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid). You can do this by passing the linked data model's name in the `fields` query parameter of the API route. + +*** + +## How to Retrieve Custom Linked Data Models Using `fields`? + +Most of Medusa's API routes accept a `fields` query parameter that allows you to specify the fields and relations to retrieve in the resource, such as a product. + +For example, to retrieve the brand of a product, you can pass the `brand` field in the `fields` query parameter of the [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid): + +```bash +curl 'http://localhost:9000/admin/products/{id}?fields=*brand' \ +-H 'Authorization: Bearer {access_token}' +``` + +The `fields` query parameter accepts a comma-separated list of fields and relations to retrieve. To learn more about using the `fields` query parameter, refer to the [API Reference](https://docs.medusajs.com/api/store#select-fields-and-relations). + +By prefixing `brand` with an asterisk (`*`), you retrieve all the default fields of the product, including the `brand` field. If you don't include the `*` prefix, the response will only include the product's brand. + +*** + +## API Routes that Restrict Retrievable Fields + +Some of Medusa's API routes restrict the fields and relations you can retrieve, which means you can't pass your custom linked data models in the `fields` query parameter. Medusa makes this restriction to ensure the API routes are performant and secure. + +The API routes that restrict the fields and relations you can retrieve are: + +- [Customer Store API Routes](https://docs.medusajs.com/api/store#customers) +- [Customer Admin API Routes](https://docs.medusajs.com/api/admin#customers) +- [Product Category Admin API Routes](https://docs.medusajs.com/api/admin#product-categories) + +### How to Override Allowed Fields and Relations + +For these routes, you need to override the allowed fields and relations to be retrieved. You can do this by adding a [middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) to those routes. + +For example, to allow retrieving the `b2b_company` of a customer using the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid), create the file `src/api/middlewares.ts` with the following content: + +Learn how to create a middleware in the [Middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) chapter. + +```ts title="src/api/middlewares.ts" highlights={highlights} +import { defineMiddlewares } from "@medusajs/medusa" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/store/customers/me", + method: "GET", + middlewares: [ + (req, res, next) => { + req.allowed?.push("b2b_company") + next() + }, + ], + }, + ], +}) +``` + +In this example, you apply a middleware to the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid). + +The request object passed to middlewares has an `allowed` property that contains the fields and relations that can be retrieved. So, you modify the `allowed` array to include the `b2b_company` field. + +You can now retrieve the `b2b_company` field using the `fields` query parameter of the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid): + +```bash +curl 'http://localhost:9000/admin/customers/{id}?fields=*b2b_company' \ +-H 'Authorization: Bearer {access_token}' +``` + +In this example, you retrieve the `b2b_company` relation of the customer using the `fields` query parameter. + + +# Request Body and Query Parameter Validation + +In this chapter, you'll learn how to validate request body and query parameters in your custom API route. + +## Request Validation + +Consider you're creating a `POST` API route at `/custom`. It accepts two parameters `a` and `b` that are required numbers, and returns their sum. + +Medusa provides two middlewares to validate the request body and query paramters of incoming requests to your custom API routes: + +- `validateAndTransformBody` to validate the request's body parameters against a schema. +- `validateAndTransformQuery` to validate the request's query parameters against a schema. + +Both middlewares accept a [Zod](https://zod.dev/) schema as a parameter, which gives you flexibility in how you define your validation schema with complex rules. + +The next steps explain how to add request body and query parameter validation to the API route mentioned earlier. + +*** + +## How to Validate Request Body + +### Step 1: Create Validation Schema + +Medusa uses [Zod](https://zod.dev/) to create validation schemas. These schemas are then used to validate incoming request bodies or query parameters. + +To create a validation schema with Zod, create a `validators.ts` file in any `src/api` subfolder. This file holds Zod schemas for each of your API routes. + +For example, create the file `src/api/custom/validators.ts` with the following content: + +```ts title="src/api/custom/validators.ts" +import { z } from "zod" + +export const PostStoreCustomSchema = z.object({ + a: z.number(), + b: z.number(), +}) +``` + +The `PostStoreCustomSchema` variable is a Zod schema that indicates the request body is valid if: + +1. It's an object. +2. It has a property `a` that is a required number. +3. It has a property `b` that is a required number. + +### Step 2: Add Request Body Validation Middleware + +To use this schema for validating the body parameters of requests to `/custom`, use the `validateAndTransformBody` middleware provided by `@medusajs/framework/http`. It accepts the Zod schema as a parameter. + +For example, create the file `src/api/middlewares.ts` with the following content: + +```ts title="src/api/middlewares.ts" +import { + defineMiddlewares, + validateAndTransformBody, +} from "@medusajs/framework/http" +import { PostStoreCustomSchema } from "./custom/validators" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom", + method: "POST", + middlewares: [ + validateAndTransformBody(PostStoreCustomSchema), + ], + }, + ], +}) +``` + +This applies the `validateAndTransformBody` middleware on `POST` requests to `/custom`. It uses the `PostStoreCustomSchema` as the validation schema. + +#### How the Validation Works + +If a request's body parameters don't pass the validation, the `validateAndTransformBody` middleware throws an error indicating the validation errors. + +If a request's body parameters are validated successfully, the middleware sets the validated body parameters in the `validatedBody` property of `MedusaRequest`. + +### Step 3: Use Validated Body in API Route + +In your API route, consume the validated body using the `validatedBody` property of `MedusaRequest`. + +For example, create the file `src/api/custom/route.ts` with the following content: + +```ts title="src/api/custom/route.ts" highlights={routeHighlights} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" +import { z } from "zod" +import { PostStoreCustomSchema } from "./validators" + +type PostStoreCustomSchemaType = z.infer< + typeof PostStoreCustomSchema +> + +export const POST = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + res.json({ + sum: req.validatedBody.a + req.validatedBody.b, + }) +} +``` + +In the API route, you use the `validatedBody` property of `MedusaRequest` to access the values of the `a` and `b` properties. + +To pass the request body's type as a type parameter to `MedusaRequest`, use Zod's `infer` type that accepts the type of a schema as a parameter. + +### Test it Out + +To test out the validation, send a `POST` request to `/custom` passing `a` and `b` body parameters. You can try sending incorrect request body parameters to test out the validation. + +For example, if you omit the `a` parameter, you'll receive a `400` response code with the following response data: + +```json +{ + "type": "invalid_data", + "message": "Invalid request: Field 'a' is required" +} +``` + +*** + +## How to Validate Request Query Parameters + +The steps to validate the request query parameters are the similar to that of [validating the body](#how-to-validate-request-body). + +### Step 1: Create Validation Schema + +The first step is to create a schema with Zod with the rules of the accepted query parameters. + +Consider that the API route accepts two query parameters `a` and `b` that are numbers, similar to the previous section. + +Create the file `src/api/custom/validators.ts` with the following content: + +```ts title="src/api/custom/validators.ts" +import { z } from "zod" + +export const PostStoreCustomSchema = z.object({ + a: z.preprocess( + (val) => { + if (val && typeof val === "string") { + return parseInt(val) + } + return val + }, + z + .number() + ), + b: z.preprocess( + (val) => { + if (val && typeof val === "string") { + return parseInt(val) + } + return val + }, + z + .number() + ), +}) +``` + +Since a query parameter's type is originally a string or array of strings, you have to use Zod's `preprocess` method to validate other query types, such as numbers. + +For both `a` and `b`, you transform the query parameter's value to an integer first if it's a string, then, you check that the resulting value is a number. + +### Step 2: Add Request Query Validation Middleware + +Next, you'll use the schema to validate incoming requests' query parameters to the `/custom` API route. + +Add the `validateAndTransformQuery` middleware to the API route in the file `src/api/middlewares.ts`: + +```ts title="src/api/middlewares.ts" +import { + validateAndTransformQuery, + defineMiddlewares, +} from "@medusajs/framework/http" +import { PostStoreCustomSchema } from "./custom/validators" + +export default defineMiddlewares({ + routes: [ + { + matcher: "/custom", + method: "POST", + middlewares: [ + validateAndTransformQuery( + PostStoreCustomSchema, + {} + ), + ], + }, + ], +}) +``` + +The `validateAndTransformQuery` accepts two parameters: + +- The first one is the Zod schema to validate the query parameters against. +- The second one is an object of options for retrieving data using Query, which you can learn more about in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). + +#### How the Validation Works + +If a request's query parameters don't pass the validation, the `validateAndTransformQuery` middleware throws an error indicating the validation errors. + +If a request's query parameters are validated successfully, the middleware sets the validated query parameters in the `validatedQuery` property of `MedusaRequest`. + +### Step 3: Use Validated Query in API Route + +Finally, use the validated query in the API route. The `MedusaRequest` parameter has a `validatedQuery` parameter that you can use to access the validated parameters. + +For example, create the file `src/api/custom/route.ts` with the following content: + +```ts title="src/api/custom/route.ts" +import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" + +export const GET = async ( + req: MedusaRequest, + res: MedusaResponse +) => { + const a = req.validatedQuery.a as number + const b = req.validatedQuery.b as number + + res.json({ + sum: a + b, + }) +} +``` + +In the API route, you use the `validatedQuery` property of `MedusaRequest` to access the values of the `a` and `b` properties as numbers, then return in the response their sum. + +### Test it Out + +To test out the validation, send a `POST` request to `/custom` with `a` and `b` query parameters. You can try sending incorrect query parameters to see how the validation works. + +For example, if you omit the `a` parameter, you'll receive a `400` response code with the following response data: + +```json +{ + "type": "invalid_data", + "message": "Invalid request: Field 'a' is required" +} +``` + +*** + +## Learn More About Validation Schemas + +To see different examples and learn more about creating a validation schema, refer to [Zod's documentation](https://zod.dev). # Add Data Model Check Constraints @@ -6160,6 +10154,118 @@ class BlogModuleService extends MedusaService({ Post }) { ``` +# Data Model Database Index + +In this chapter, you’ll learn how to define a database index on a data model. + +You can also define an index on a property as explained in the [Properties chapter](https://docs.medusajs.com/learn/fundamentals/data-models/properties#define-database-index-on-property/index.html.md). + +## Define Database Index on Data Model + +A data model has an `indexes` method that defines database indices on its properties. + +The index can be on multiple columns (composite index). For example: + +```ts highlights={dataModelIndexHighlights} +import { model } from "@medusajs/framework/utils" + +const MyCustom = model.define("my_custom", { + id: model.id().primaryKey(), + name: model.text(), + age: model.number(), +}).indexes([ + { + on: ["name", "age"], + }, +]) + +export default MyCustom +``` + +The `indexes` method receives an array of indices as a parameter. Each index is an object with a required `on` property indicating the properties to apply the index on. + +In the above example, you define a composite index on the `name` and `age` properties. + +### Index Conditions + +An index can have conditions. For example: + +```ts highlights={conditionHighlights} +import { model } from "@medusajs/framework/utils" + +const MyCustom = model.define("my_custom", { + id: model.id().primaryKey(), + name: model.text(), + age: model.number(), +}).indexes([ + { + on: ["name", "age"], + where: { + age: 30, + }, + }, +]) + +export default MyCustom +``` + +The index object passed to `indexes` accepts a `where` property whose value is an object of conditions. The object's key is a property's name, and its value is the condition on that property. + +In the example above, the composite index is created on the `name` and `age` properties when the `age`'s value is `30`. + +A property's condition can be a negation. For example: + +```ts highlights={negationHighlights} +import { model } from "@medusajs/framework/utils" + +const MyCustom = model.define("my_custom", { + id: model.id().primaryKey(), + name: model.text(), + age: model.number().nullable(), +}).indexes([ + { + on: ["name", "age"], + where: { + age: { + $ne: null, + }, + }, + }, +]) + +export default MyCustom +``` + +A property's value in `where` can be an object having a `$ne` property. `$ne`'s value indicates what the specified property's value shouldn't be. + +In the example above, the composite index is created on the `name` and `age` properties when `age`'s value is not `null`. + +### Unique Database Index + +The object passed to `indexes` accepts a `unique` property indicating that the created index must be a unique index. + +For example: + +```ts highlights={uniqueHighlights} +import { model } from "@medusajs/framework/utils" + +const MyCustom = model.define("my_custom", { + id: model.id().primaryKey(), + name: model.text(), + age: model.number(), +}).indexes([ + { + on: ["name", "age"], + unique: true, + }, +]) + +export default MyCustom +``` + +This creates a unique composite index on the `name` and `age` properties. + + # Manage Relationships In this chapter, you'll learn how to manage relationships between data models when creating, updating, or retrieving records using the module's main service. @@ -7027,205 +11133,6 @@ The `cascades` method accepts an object. Its key is the operation’s name, such In the example above, when a store is deleted, its associated products are also deleted. -# Pass Additional Data to Medusa's API Route - -In this chapter, you'll learn how to pass additional data in requests to Medusa's API Route. - -## Why Pass Additional Data? - -Some of Medusa's API Routes accept an `additional_data` parameter whose type is an object. The API Route passes the `additional_data` to the workflow, which in turn passes it to its hooks. - -This is useful when you have a link from your custom module to a Commerce Module, and you want to perform an additional action when a request is sent to an existing API route. - -For example, the [Create Product API Route](https://docs.medusajs.com/api/admin#products_postproducts) accepts an `additional_data` parameter. If you have a data model linked to it, you consume the `productsCreated` hook to create a record of the data model using the custom data and link it to the product. - -### API Routes Accepting Additional Data - -### API Routes List - -- Campaigns - - [Create Campaign](https://docs.medusajs.com/api/admin#campaigns_postcampaigns) - - [Update Campaign](https://docs.medusajs.com/api/admin#campaigns_postcampaignsid) -- Cart - - [Create Cart](https://docs.medusajs.com/api/store#carts_postcarts) - - [Update Cart](https://docs.medusajs.com/api/store#carts_postcartsid) -- Collections - - [Create Collection](https://docs.medusajs.com/api/admin#collections_postcollections) - - [Update Collection](https://docs.medusajs.com/api/admin#collections_postcollectionsid) -- Customers - - [Create Customer](https://docs.medusajs.com/api/admin#customers_postcustomers) - - [Update Customer](https://docs.medusajs.com/api/admin#customers_postcustomersid) - - [Create Address](https://docs.medusajs.com/api/admin#customers_postcustomersidaddresses) - - [Update Address](https://docs.medusajs.com/api/admin#customers_postcustomersidaddressesaddress_id) -- Draft Orders - - [Create Draft Order](https://docs.medusajs.com/api/admin#draft-orders_postdraftorders) -- Orders - - [Complete Orders](https://docs.medusajs.com/api/admin#orders_postordersidcomplete) - - [Cancel Order's Fulfillment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillmentsfulfillment_idcancel) - - [Create Shipment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillmentsfulfillment_idshipments) - - [Create Fulfillment](https://docs.medusajs.com/api/admin#orders_postordersidfulfillments) -- Products - - [Create Product](https://docs.medusajs.com/api/admin#products_postproducts) - - [Update Product](https://docs.medusajs.com/api/admin#products_postproductsid) - - [Create Product Variant](https://docs.medusajs.com/api/admin#products_postproductsidvariants) - - [Update Product Variant](https://docs.medusajs.com/api/admin#products_postproductsidvariantsvariant_id) - - [Create Product Option](https://docs.medusajs.com/api/admin#products_postproductsidoptions) - - [Update Product Option](https://docs.medusajs.com/api/admin#products_postproductsidoptionsoption_id) -- Product Tags - - [Create Product Tag](https://docs.medusajs.com/api/admin#product-tags_postproducttags) - - [Update Product Tag](https://docs.medusajs.com/api/admin#product-tags_postproducttagsid) -- Product Types - - [Create Product Type](https://docs.medusajs.com/api/admin#product-types_postproducttypes) - - [Update Product Type](https://docs.medusajs.com/api/admin#product-types_postproducttypesid) -- Promotions - - [Create Promotion](https://docs.medusajs.com/api/admin#promotions_postpromotions) - - [Update Promotion](https://docs.medusajs.com/api/admin#promotions_postpromotionsid) - -*** - -## How to Pass Additional Data - -### 1. Specify Validation of Additional Data - -Before passing custom data in the `additional_data` object parameter, you must specify validation rules for the allowed properties in the object. - -To do that, use the middleware route object defined in `src/api/middlewares.ts`. - -For example, create the file `src/api/middlewares.ts` with the following content: - -```ts title="src/api/middlewares.ts" -import { defineMiddlewares } from "@medusajs/framework/http" -import { z } from "zod" - -export default defineMiddlewares({ - routes: [ - { - method: "POST", - matcher: "/admin/products", - additionalDataValidator: { - brand: z.string().optional(), - }, - }, - ], -}) -``` - -The middleware route object accepts an optional parameter `additionalDataValidator` whose value is an object of key-value pairs. The keys indicate the name of accepted properties in the `additional_data` parameter, and the value is [Zod](https://zod.dev/) validation rules of the property. - -In this example, you indicate that the `additional_data` parameter accepts a `brand` property whose value is an optional string. - -Refer to [Zod's documentation](https://zod.dev) for all available validation rules. - -### 2. Pass the Additional Data in a Request - -You can now pass a `brand` property in the `additional_data` parameter of a request to the Create Product API Route. - -For example: - -```bash -curl -X POST 'http://localhost:9000/admin/products' \ --H 'Content-Type: application/json' \ --H 'Authorization: Bearer {token}' \ ---data '{ - "title": "Product 1", - "options": [ - { - "title": "Default option", - "values": ["Default option value"] - } - ], - "shipping_profile_id": "{shipping_profile_id}", - "additional_data": { - "brand": "Acme" - } -}' -``` - -Make sure to replace the `{token}` in the authorization header with an admin user's authentication token, and `{shipping_profile_id}` with an existing shipping profile's ID. - -In this request, you pass in the `additional_data` parameter a `brand` property and set its value to `Acme`. - -The `additional_data` is then passed to hooks in the `createProductsWorkflow` used by the API route. - -*** - -## Use Additional Data in a Hook - -Learn about workflow hooks in [this guide](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md). - -Step functions consuming the workflow hook can access the `additional_data` in the first parameter. - -For example, consider you want to store the data passed in `additional_data` in the product's `metadata` property. - -To do that, create the file `src/workflows/hooks/product-created.ts` with the following content: - -```ts title="src/workflows/hooks/product-created.ts" -import { StepResponse } from "@medusajs/framework/workflows-sdk" -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" -import { Modules } from "@medusajs/framework/utils" - -createProductsWorkflow.hooks.productsCreated( - async ({ products, additional_data }, { container }) => { - if (!additional_data?.brand) { - return - } - - const productModuleService = container.resolve( - Modules.PRODUCT - ) - - await productModuleService.upsertProducts( - products.map((product) => ({ - ...product, - metadata: { - ...product.metadata, - brand: additional_data.brand, - }, - })) - ) - - return new StepResponse(products, { - products, - additional_data, - }) - } -) -``` - -This consumes the `productsCreated` hook, which runs after the products are created. - -If `brand` is passed in `additional_data`, you resolve the Product Module's main service and use its `upsertProducts` method to update the products, adding the brand to the `metadata` property. - -### Compensation Function - -Hooks also accept a compensation function as a second parameter to undo the actions made by the step function. - -For example, pass the following second parameter to the `productsCreated` hook: - -```ts title="src/workflows/hooks/product-created.ts" -createProductsWorkflow.hooks.productsCreated( - async ({ products, additional_data }, { container }) => { - // ... - }, - async ({ products, additional_data }, { container }) => { - if (!additional_data.brand) { - return - } - - const productModuleService = container.resolve( - Modules.PRODUCT - ) - - await productModuleService.upsertProducts( - products - ) - } -) -``` - -This updates the products to their original state before adding the brand to their `metadata` property. - - # Migrations In this chapter, you'll learn what a migration is and how to generate a migration or write it manually. @@ -7324,1713 +11231,6 @@ So, always rollback the migration before deleting it. To learn more about the Medusa CLI's database commands, refer to [this CLI reference](https://docs.medusajs.com/resources/medusa-cli/commands/db/index.html.md). -# Handling CORS in API Routes - -In this chapter, you’ll learn about the CORS middleware and how to configure it for custom API routes. - -## CORS Overview - -Cross-Origin Resource Sharing (CORS) allows only configured origins to access your API Routes. - -For example, if you allow only origins starting with `http://localhost:7001` to access your Admin API Routes, other origins accessing those routes get a CORS error. - -### CORS Configurations - -The `storeCors` and `adminCors` properties of Medusa's `http` configuration set the allowed origins for routes starting with `/store` and `/admin` respectively. - -These configurations accept a URL pattern to identify allowed origins. - -For example: - -```js title="medusa-config.ts" -module.exports = defineConfig({ - projectConfig: { - http: { - storeCors: "http://localhost:8000", - adminCors: "http://localhost:7001", - // ... - }, - }, -}) -``` - -This allows the `http://localhost:7001` origin to access the Admin API Routes, and the `http://localhost:8000` origin to access Store API Routes. - -Learn more about the CORS configurations in [this resource guide](https://docs.medusajs.com/learn/configurations/medusa-config#http/index.html.md). - -*** - -## CORS in Store and Admin Routes - -To disable the CORS middleware for a route, export a `CORS` variable in the route file with its value set to `false`. - -For example: - -```ts title="src/api/store/custom/route.ts" highlights={[["15"]]} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "[GET] Hello world!", - }) -} - -export const CORS = false -``` - -This disables the CORS middleware on API Routes at the path `/store/custom`. - -*** - -## CORS in Custom Routes - -If you create a route that doesn’t start with `/store` or `/admin`, you must apply the CORS middleware manually. Otherwise, all requests to your API route lead to a CORS error. - -You can do that in the exported middlewares configurations in `src/api/middlewares.ts`. - -For example: - -```ts title="src/api/middlewares.ts" highlights={highlights} collapsibleLines="1-10" expandButtonLabel="Show Imports" -import { defineMiddlewares } from "@medusajs/framework/http" -import type { - MedusaNextFunction, - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { ConfigModule } from "@medusajs/framework/types" -import { parseCorsOrigins } from "@medusajs/framework/utils" -import cors from "cors" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom*", - middlewares: [ - ( - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - const configModule: ConfigModule = - req.scope.resolve("configModule") - - return cors({ - origin: parseCorsOrigins( - configModule.projectConfig.http.storeCors - ), - credentials: true, - })(req, res, next) - }, - ], - }, - ], -}) -``` - -This retrieves the configurations exported from `medusa-config.ts` and applies the `storeCors` to routes starting with `/custom`. - - -# Throwing and Handling Errors - -In this guide, you'll learn how to throw errors in your Medusa application, how it affects an API route's response, and how to change the default error handler of your Medusa application. - -## Throw MedusaError - -When throwing an error in your API routes, middlewares, workflows, or any customization, throw a `MedusaError` from the Medusa Framework. - -The Medusa application's API route error handler then wraps your thrown error in a uniform object and returns it in the response. - -For example: - -```ts -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" -import { MedusaError } from "@medusajs/framework/utils" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - if (!req.query.q) { - throw new MedusaError( - MedusaError.Types.INVALID_DATA, - "The `q` query parameter is required." - ) - } - - // ... -} -``` - -The `MedusaError` class accepts in its constructor two parameters: - -1. The first is the error's type. `MedusaError` has a static property `Types` that you can use. `Types` is an enum whose possible values are explained in the next section. -2. The second is the message to show in the error response. - -### Error Object in Response - -The error object returned in the response has two properties: - -- `type`: The error's type. -- `message`: The error message, if available. -- `code`: A common snake-case code. Its values can be: - - `invalid_request_error` for the `DUPLICATE_ERROR` type. - - `api_error`: for the `DB_ERROR` type. - - `invalid_state_error` for `CONFLICT` error type. - - `unknown_error` for any unidentified error type. - - For other error types, this property won't be available unless you provide a code as a third parameter to the `MedusaError` constructor. - -### MedusaError Types - -|Type|Description|Status Code| -|---|---|---|---|---| -|\`DB\_ERROR\`|Indicates a database error.|\`500\`| -|\`DUPLICATE\_ERROR\`|Indicates a duplicate of a record already exists. For example, when trying to create a customer whose email is registered by another customer.|\`422\`| -|\`INVALID\_ARGUMENT\`|Indicates an error that occurred due to incorrect arguments or other unexpected state.|\`500\`| -|\`INVALID\_DATA\`|Indicates a validation error.|\`400\`| -|\`UNAUTHORIZED\`|Indicates that a user is not authorized to perform an action or access a route.|\`401\`| -|\`NOT\_FOUND\`|Indicates that the requested resource, such as a route or a record, isn't found.|\`404\`| -|\`NOT\_ALLOWED\`|Indicates that an operation isn't allowed.|\`400\`| -|\`CONFLICT\`|Indicates that a request conflicts with another previous or ongoing request. The error message in this case is ignored for a default message.|\`409\`| -|\`PAYMENT\_AUTHORIZATION\_ERROR\`|Indicates an error has occurred while authorizing a payment.|\`422\`| -|Other error types|Any other error type results in an |\`500\`| - -*** - -## Override Error Handler - -The `defineMiddlewares` function used to apply middlewares on routes accepts an `errorHandler` in its object parameter. Use it to override the default error handler for API routes. - -This error handler will also be used for errors thrown in Medusa's API routes and resources. - -For example, create `src/api/middlewares.ts` with the following: - -```ts title="src/api/middlewares.ts" collapsibleLines="1-8" expandMoreLabel="Show Imports" -import { - defineMiddlewares, - MedusaNextFunction, - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { MedusaError } from "@medusajs/framework/utils" - -export default defineMiddlewares({ - errorHandler: ( - error: MedusaError | any, - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - res.status(400).json({ - error: "Something happened.", - }) - }, -}) -``` - -The `errorHandler` property's value is a function that accepts four parameters: - -1. The error thrown. Its type can be `MedusaError` or any other thrown error type. -2. A request object of type `MedusaRequest`. -3. A response object of type `MedusaResponse`. -4. A function of type MedusaNextFunction that executes the next middleware in the stack. - -This example overrides Medusa's default error handler with a handler that always returns a `400` status code with the same message. - - -# HTTP Methods - -In this chapter, you'll learn about how to add new API routes for each HTTP method. - -## HTTP Method Handler - -An API route is created for every HTTP method you export a handler function for in a route file. - -Allowed HTTP methods are: `GET`, `POST`, `DELETE`, `PUT`, `PATCH`, `OPTIONS`, and `HEAD`. - -For example, create the file `src/api/hello-world/route.ts` with the following content: - -```ts title="src/api/hello-world/route.ts" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "[GET] Hello world!", - }) -} - -export const POST = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "[POST] Hello world!", - }) -} -``` - -This adds two API Routes: - -- A `GET` route at `http://localhost:9000/hello-world`. -- A `POST` route at `http://localhost:9000/hello-world`. - - -# Middlewares - -In this chapter, you’ll learn about middlewares and how to create them. - -## What is a Middleware? - -A middleware is a function executed when a request is sent to an API Route. It's executed before the route handler function. - -Middlewares are used to guard API routes, parse request content types other than `application/json`, manipulate request data, and more. - -![Diagram showcasing how a middleware is executed when a request is sent to an API route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746775148/Medusa%20Book/middleware-overview_wc2ws5.jpg) - -As Medusa's server is based on Express, you can use any [Express middleware](https://expressjs.com/en/resources/middleware.html). - -### Middleware Types - -There are two types of middlewares: - -|Type|Description|Example| -|---|---|---| -|Global Middleware|A middleware that applies to all routes matching a specified pattern.|\`/custom\*\`| -|Route Middleware|A middleware that applies to routes matching a specified pattern and HTTP method(s).|A middleware that applies to all | - -These middlewares generally have the same definition and usage, but they differ in the routes they apply to. You'll learn how to create both types in the following sections. - -*** - -## How to Create a Middleware? - -Middlewares of all types are defined in the special file `src/api/middlewares.ts`. Use the `defineMiddlewares` function from the Medusa Framework to define the middlewares, and export its value. - -For example: - -### Global Middleware - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - MedusaNextFunction, - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom*", - middlewares: [ - ( - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - console.log("Received a request!") - - next() - }, - ], - }, - ], -}) -``` - -### Route Middleware - -```ts title="src/api/middlewares.ts" highlights={highlights} -import { - defineMiddlewares, - MedusaNextFunction, - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom*", - method: ["POST", "PUT"], - middlewares: [ - ( - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - console.log("Received a request!") - - next() - }, - ], - }, - ], -}) -``` - -The `defineMiddlewares` function accepts a middleware configurations object that has the property `routes`. `routes`'s value is an array of middleware route objects, each having the following properties: - -- `matcher`: a string or regular expression indicating the API route path to apply the middleware on. The regular expression must be compatible with [path-to-regexp](https://github.com/pillarjs/path-to-regexp). -- `middlewares`: An array of global and route middleware functions. -- `method`: (optional) By default, a middleware is applied on all HTTP methods for a route. You can specify one or more HTTP methods to apply the middleware to in this option, making it a route middleware. - -### Test the Middleware - -To test the middleware: - -1. Start the application: - -```bash npm2yarn -npm run dev -``` - -2. Send a request to any API route starting with `/custom`. If you specified an HTTP method in the `method` property, make sure to use that method. -3. See the following message in the terminal: - -```bash -Received a request! -``` - -*** - -## When to Use Middlewares - -Middlewares are useful for: - -- [Protecting API routes](https://docs.medusajs.com/learn/fundamentals/api-routes/protected-routes/index.html.md) to ensure that only authenticated users can access them. -- [Validating](https://docs.medusajs.com/learn/fundamentals/api-routes/validation/index.html.md) request query and body parameters. -- [Parsing](https://docs.medusajs.com/learn/fundamentals/api-routes/parse-body/index.html.md) request content types other than `application/json`. -- [Applying CORS](https://docs.medusajs.com/learn/fundamentals/api-routes/cors/index.html.md) configurations to custom API routes. - -*** - -## Middleware Function Parameters - -The middleware function accepts three parameters: - -1. A request object of type `MedusaRequest`. -2. A response object of type `MedusaResponse`. -3. A function of type `MedusaNextFunction` that executes the next middleware in the stack. - -You must call the `next` function in the middleware. Otherwise, other middlewares and the API route handler won’t execute. - -For example: - -```ts title="src/api/middlewares.ts" -import { - MedusaNextFunction, - MedusaRequest, - MedusaResponse, - defineMiddlewares, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom*", - middlewares: [ - ( - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - console.log("Received a request!", req.body) - - next() - }, - ], - }, - ], -}) -``` - -This middleware logs the request body to the terminal, then calls the `next` function to execute the next middleware in the stack. - -*** - -## Middleware for Routes with Path Parameters - -To indicate a path parameter in a middleware's `matcher` pattern, use the format `:{param-name}`. - -A middleware applied on a route with path parameters is a route middleware. - -For example: - -```ts title="src/api/middlewares.ts" collapsibleLines="1-7" expandMoreLabel="Show Imports" highlights={pathParamHighlights} -import { - MedusaNextFunction, - MedusaRequest, - MedusaResponse, - defineMiddlewares, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom/:id", - middlewares: [ - // ... - ], - }, - ], -}) -``` - -This applies a middleware to the routes defined in the file `src/api/custom/[id]/route.ts`. - -*** - -## Request URLs with Trailing Backslashes - -A middleware whose `matcher` pattern doesn't end with a backslash won't be applied for requests to URLs with a trailing backslash. - -For example, consider you have the following middleware: - -```ts title="src/api/middlewares.ts" collapsibleLines="1-7" expandMoreLabel="Show Imports" -import { - MedusaNextFunction, - MedusaRequest, - MedusaResponse, - defineMiddlewares, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom", - middlewares: [ - ( - req: MedusaRequest, - res: MedusaResponse, - next: MedusaNextFunction - ) => { - console.log("Received a request!") - - next() - }, - ], - }, - ], -}) -``` - -If you send a request to `http://localhost:9000/custom`, the middleware will run. - -However, if you send a request to `http://localhost:9000/custom/`, the middleware won't run. - -In general, avoid adding trailing backslashes when sending requests to API routes. - -*** - -## How Are Middlewares Ordered and Applied? - -The information explained in this section is applicable starting from [Medusa v2.6](https://github.com/medusajs/medusa/releases/tag/v2.6). - -### Middleware and Routes Execution Order - -The Medusa application registers middlewares and API route handlers in the following order, stacking them on top of each other: - -![Diagram showcasing the order in which middlewares and route handlers are registered.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746776911/Medusa%20Book/middleware-registration-overview_spc02f.jpg) - -1. Global middlewares in the following order: - 1. Global middleware defined in the Medusa's core. - 2. Global middleware defined in the plugins (in the order the plugins are registered in). - 3. Global middleware you define in the application. -2. Route middlewares in the following order: - 1. Route middleware defined in the Medusa's core. - 2. Route middleware defined in the plugins (in the order the plugins are registered in). - 3. Route middleware you define in the application. -3. API routes in the following order: - 1. API routes defined in the Medusa's core. - 2. API routes defined in the plugins (in the order the plugins are registered in). - 3. API routes you define in the application. - -Then, when a request is sent to an API route, the stack is executed in order: global middlewares are executed first, then the route middlewares, and finally the route handlers. - -![Diagram showcasing the order in which middlewares and route handlers are executed when a request is sent to an API route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746776172/Medusa%20Book/middleware-order-overview_h7kzfl.jpg) - -For example, consider you have the following middlewares: - -```ts title="src/api/middlewares.ts" -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom", - middlewares: [ - (req, res, next) => { - console.log("Global middleware") - next() - }, - ], - }, - { - matcher: "/custom", - method: ["GET"], - middlewares: [ - (req, res, next) => { - console.log("Route middleware") - next() - }, - ], - }, - ], -}) -``` - -When you send a request to `/custom` route, the following messages are logged in the terminal: - -```bash -Global middleware -Route middleware -Hello from custom! # message logged from API route handler -``` - -The global middleware runs first, then the route middleware, and finally the route handler, assuming that it logs the message `Hello from custom!`. - -### Middlewares Sorting - -On top of the previous ordering, Medusa sorts global and route middlewares based on their matcher pattern in the following order: - -1. Wildcard matchers. For example, `/custom*`. -2. Regex matchers. For example, `/custom/(products|collections)`. -3. Static matchers without parameters. For example, `/custom`. -4. Static matchers with parameters. For example, `/custom/:id`. - -For example, if you have the following middlewares: - -```ts title="src/api/middlewares.ts" -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom/:id", - middlewares: [/* ... */], - }, - { - matcher: "/custom", - middlewares: [/* ... */], - }, - { - matcher: "/custom*", - method: ["GET"], - middlewares: [/* ... */], - }, - { - matcher: "/custom/:id", - method: ["GET"], - middlewares: [/* ... */], - }, - ], -}) -``` - -The global middlewares are sorted into the following order before they're registered: - -1. Global middleware `/custom`. -2. Global middleware `/custom/:id`. - -And the route middlewares are sorted into the following order before they're registered: - -1. Route middleware `/custom*`. -2. Route middleware `/custom/:id`. - -![Diagram showcasing the order in which middlewares are sorted before being registered.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746777297/Medusa%20Book/middleware-registration-sorting_oyfqhw.jpg) - -Then, the middlwares are registered in the order mentioned earlier, with global middlewares first, then the route middlewares. - -*** - -## Overriding Middlewares - -A middleware can not override an existing middleware. Instead, middlewares are added to the end of the middleware stack. - -For example, if you define a custom validation middleware, such as `validateAndTransformBody`, on an existing route, then both the original and the custom validation middleware will run. - -Similarly, if you add an [authenticate](https://docs.medusajs.com/learn/fundamentals/api-routes/protected-routes#protect-custom-api-routes/index.html.md) middleware to an existing route, both the original and the custom authentication middleware will run. So, you can't override the original authentication middleware. - -### Alternative Solution to Overriding Middlewares - -If you need to change the middlewares applied to a route, you can create a custom [API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) that executes the same functionality as the original route, but with the middlewares you want. - -Learn more in the [Override API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/override/index.html.md) chapter. - - -# API Route Parameters - -In this chapter, you’ll learn about path, query, and request body parameters. - -## Path Parameters - -To create an API route that accepts a path parameter, create a directory within the route file's path whose name is of the format `[param]`. - -For example, to create an API Route at the path `/hello-world/:id`, where `:id` is a path parameter, create the file `src/api/hello-world/[id]/route.ts` with the following content: - -```ts title="src/api/hello-world/[id]/route.ts" highlights={singlePathHighlights} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: `[GET] Hello ${req.params.id}!`, - }) -} -``` - -The `MedusaRequest` object has a `params` property. `params` holds the path parameters in key-value pairs. - -### Multiple Path Parameters - -To create an API route that accepts multiple path parameters, create within the file's path multiple directories whose names are of the format `[param]`. - -For example, to create an API route at `/hello-world/:id/name/:name`, create the file `src/api/hello-world/[id]/name/[name]/route.ts` with the following content: - -```ts title="src/api/hello-world/[id]/name/[name]/route.ts" highlights={multiplePathHighlights} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: `[GET] Hello ${ - req.params.id - } - ${req.params.name}!`, - }) -} -``` - -You access the `id` and `name` path parameters using the `req.params` property. - -*** - -## Query Parameters - -You can access all query parameters in the `query` property of the `MedusaRequest` object. `query` is an object of key-value pairs, where the key is a query parameter's name, and the value is its value. - -For example: - -```ts title="src/api/hello-world/route.ts" highlights={queryHighlights} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: `Hello ${req.query.name}`, - }) -} -``` - -The value of `req.query.name` is the value passed in `?name=John`, for example. - -### Validate Query Parameters - -You can apply validation rules on received query parameters to ensure they match specified rules and types. - -Learn more in [this documentation](https://docs.medusajs.com/learn/fundamentals/api-routes/validation#how-to-validate-request-query-paramters/index.html.md). - -*** - -## Request Body Parameters - -The Medusa application parses the body of any request having a JSON, URL-encoded, or text request content types. The request body parameters are set in the `MedusaRequest`'s `body` property. - -Learn more about configuring body parsing in [this guide](https://docs.medusajs.com/learn/fundamentals/api-routes/parse-body/index.html.md). - -For example: - -```ts title="src/api/hello-world/route.ts" highlights={bodyHighlights} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -type HelloWorldReq = { - name: string -} - -export const POST = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: `[POST] Hello ${req.body.name}!`, - }) -} -``` - -In this example, you use the `name` request body parameter to create the message in the returned response. - -The `MedusaRequest` type accepts a type argument that indicates the type of the request body. This is useful for auto-completion and to avoid typing errors. - -To test it out, send the following request to your Medusa application: - -```bash -curl -X POST 'http://localhost:9000/hello-world' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "name": "John" -}' -``` - -This returns the following JSON object: - -```json -{ - "message": "[POST] Hello John!" -} -``` - -### Validate Body Parameters - -You can apply validation rules on received body parameters to ensure they match specified rules and types. - -Learn more in [this documentation](https://docs.medusajs.com/learn/fundamentals/api-routes/validation#how-to-validate-request-body/index.html.md). - - -# Override API Routes - -In this chapter, you'll learn the approach recommended when you need to override an existing API route in Medusa. - -## Approaches to Consider Before Overriding API Routes - -While building customizations in your Medusa application, you may need to make changes to existing API routes for your business use case. - -Medusa provides the following approaches to customize API routes: - -|Approach|Description| -|---|---| -|Pass Additional Data|Pass custom data to the API route with custom validation.| -|Perform Custom Logic within an Existing Flows|API routes execute workflows to perform business logic, which may have hooks that allow you to perform custom logic.| -|Use Custom Middlewares|Use custom middlewares to perform custom logic before the API route is executed. However, you cannot remove or replace middlewares applied to existing API routes.| -|Listen to Events in Subscribers|Functionalities in API routes may trigger events that you can handle in subscribers. This is useful if you're performing an action that isn't integral to the API route's core functionality or response.| - -If the above approaches do not meet your needs, you can consider the approaches mentioned in the rest of this chapter. - -*** - -## Replicate, Don't Override API Routes - -If the approaches mentioned in the [section above](#approaches-to-consider-before-overriding-api-routes) do not meet your needs, you can replicate an existing API route and modify it to suit your requirements. - -By replicating instead of overriding, the original API route remains intact, allowing you to easily revert to the original functionality if needed. You can also update your Medusa version without worrying about breaking changes in the original API route. - -*** - -## How to Replicate an API Route? - -Medusa's API routes are generally slim and use logic contained in [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). So, creating a custom route based on the original route is straightforward. - -You can view the source code for Medusa's API routes in the [Medusa GitHub repository](https://github.com/medusajs/medusa/tree/develop/packages/medusa/src/api). - -For example, if you need to allow vendors to access the `POST /admin/products` API route, you can create an API route in your Medusa project at `src/api/vendor/products/route.ts` with the [same code as the original route](https://github.com/medusajs/medusa/blob/develop/packages/medusa/src/api/admin/products/route.ts#L88). Then, you can make changes to it or its middlewares. - -*** - -## When to Replicate an API Route? - -Some examples of when you might want to replicate an API route include: - -|Use Case|Description| -|---|---| -|Custom Validation|You want to change the validation logic for a specific API route, and the | -|Change Authentication|You want to remove required authentication for a specific API route, or you want to allow custom | -|Custom Response|You want to change the response format of an existing API route.| -|Override Middleware|You want to override the middleware applied on existing API routes. Because of | - - -# Configure Request Body Parser - -In this chapter, you'll learn how to configure the request body parser for your API routes. - -## Default Body Parser Configuration - -The Medusa application configures the body parser by default to parse JSON, URL-encoded, and text request content types. You can parse other data types by adding the relevant [Express middleware](https://expressjs.com/en/guide/using-middleware.html) or preserve the raw body data by configuring the body parser, which is useful for webhook requests. - -This chapter shares some examples of configuring the body parser for different data types or use cases. - -*** - -## Preserve Raw Body Data for Webhooks - -If your API route receives webhook requests, you might want to preserve the raw body data. To do this, you can configure the body parser to parse the raw body data and store it in the `req.rawBody` property. - -To do that, create the file `src/api/middlewares.ts` with the following content: - -```ts title="src/api/middlewares.ts" highlights={preserveHighlights} -import { defineMiddlewares } from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - method: ["POST"], - bodyParser: { preserveRawBody: true }, - matcher: "/custom", - }, - ], -}) -``` - -The middleware route object passed to `routes` accepts a `bodyParser` property whose value is an object of configuration for the default body parser. By enabling the `preserveRawBody` property, the raw body data is preserved and stored in the `req.rawBody` property. - -Learn more about [middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). - -You can then access the raw body data in your API route handler: - -```ts title="src/api/custom/route.ts" -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export async function POST( - req: MedusaRequest, - res: MedusaResponse -) { - console.log(req.rawBody) - - // TODO use raw body -} -``` - -*** - -## Configure Request Body Size Limit - -By default, the body parser limits the request body size to `100kb`. If a request body exceeds that size, the Medusa application throws an error. - -You can configure the body parser to accept larger request bodies by setting the `sizeLimit` property of the `bodyParser` object in a middleware route object. For example: - -```ts title="src/api/middlewares.ts" highlights={sizeLimitHighlights} -import { defineMiddlewares } from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - method: ["POST"], - bodyParser: { sizeLimit: "2mb" }, - matcher: "/custom", - }, - ], -}) -``` - -The `sizeLimit` property accepts one of the following types of values: - -- A string representing the size limit in bytes (For example, `100kb`, `2mb`, `5gb`). It is passed to the [bytes](https://www.npmjs.com/package/bytes) library to parse the size. -- A number representing the size limit in bytes. For example, `1024` for 1kb. - -*** - -## Configure File Uploads - -To accept file uploads in your API routes, you can configure the [Express Multer middleware](https://expressjs.com/en/resources/middleware/multer.html) on your route. - -The `multer` package is available through the `@medusajs/medusa` package, so you don't need to install it. However, for better typing support, install the `@types/multer` package as a development dependency: - -```bash npm2yarn -npm install --save-dev @types/multer -``` - -Then, to configure file upload for your route, create the file `src/api/middlewares.ts` with the following content: - -```ts title="src/api/middlewares.ts" highlights={uploadHighlights} -import { defineMiddlewares } from "@medusajs/framework/http" -import multer from "multer" - -const upload = multer({ storage: multer.memoryStorage() }) - -export default defineMiddlewares({ - routes: [ - { - method: ["POST"], - matcher: "/custom", - middlewares: [ - // @ts-ignore - upload.array("files"), - ], - }, - ], -}) -``` - -In the example above, you configure the `multer` middleware to store the uploaded files in memory. Then, you apply the `upload.array("files")` middleware to the route to accept file uploads. By using the `array` method, you accept multiple file uploads with the same `files` field name. - -You can then access the uploaded files in your API route handler: - -```ts title="src/api/custom/route.ts" -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export async function POST( - req: MedusaRequest, - res: MedusaResponse -) { - const files = req.files as Express.Multer.File[] - - // TODO handle files -} -``` - -The uploaded files are stored in the `req.files` property as an array of Multer file objects that have properties like `filename` and `mimetype`. - -### Uploading Files using File Module Provider - -The recommended way to upload the files to storage using the configured [File Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/file/index.html.md) is to use the [uploadFilesWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/uploadFilesWorkflow/index.html.md): - -```ts title="src/api/custom/route.ts" -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" -import { MedusaError } from "@medusajs/framework/utils" -import { uploadFilesWorkflow } from "@medusajs/medusa/core-flows" - -export async function POST( - req: MedusaRequest, - res: MedusaResponse -) { - const files = req.files as Express.Multer.File[] - - if (!files?.length) { - throw new MedusaError( - MedusaError.Types.INVALID_DATA, - "No files were uploaded" - ) - } - - const { result } = await uploadFilesWorkflow(req.scope).run({ - input: { - files: files?.map((f) => ({ - filename: f.originalname, - mimeType: f.mimetype, - content: f.buffer.toString("binary"), - access: "public", - })), - }, - }) - - res.status(200).json({ files: result }) -} -``` - -Check out the [uploadFilesWorkflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/uploadFilesWorkflow/index.html.md) for details on the expected input and output of the workflow. - - -# Protected API Routes - -In this chapter, you’ll learn how to create protected API routes. - -## What is a Protected API Route? - -By default, an API route is publicly accessible, meaning that any user can access it without authentication. This is useful for public API routes that allow users to browse products, view collections, and so on. - -A protected API route is an API route that requires requests to be user-authenticated before performing the route's functionality. Otherwise, the request fails, and the user is prevented access. - -Protected API routes are useful for routes that require user authentication, such as creating a product or managing an order. These routes must only be accessed by authenticated admin users. - -Refer to the API Reference for [Admin](https://docs.medusajs.com/api/admin#authentication) and [Store](https://docs.medusajs.com/api/store#authentication) to learn how to send authenticated requests. - -*** - -## Default Protected Routes - -Any API route, including your custom API routes, are protected if they start with the following prefixes: - -|Route Prefix|Access| -|---|---| -|\`/admin\`|Only authenticated admin users can access.| -|\`/store/customers/me\`|Only authenticated customers can access.| - -Refer to the API Reference for [Admin](https://docs.medusajs.com/api/admin#authentication) and [Store](https://docs.medusajs.com/api/store#authentication) to learn how to send authenticated requests. - -### Opt-Out of Default Authentication Requirement - -If you create a custom API route under a prefix that is protected by default, you can opt-out of the authentication requirement by exporting an `AUTHENTICATE` variable in the route file with its value set to `false`. - -For example, to disable authentication requirement for a custom API route created at `/admin/custom`, you can export an `AUTHENTICATE` variable in the route file: - -```ts title="src/api/admin/custom/route.ts" highlights={[["15"]]} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "Hello", - }) -} - -export const AUTHENTICATE = false -``` - -Now, any request sent to the `/admin/custom` API route is allowed, regardless if the admin user is authenticated. - -*** - -## Protect Custom API Routes - -You can protect API routes using the `authenticate` [middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) from the Medusa Framework. When applied to a route, the middleware checks that: - -- The correct actor type (for example, `user`, `customer`, or a custom actor type) is authenticated. -- The correct authentication method is used (for example, `session`, `bearer`, or `api-key`). - -For example, you can add the `authenticate` middleware in the `src/api/middlewares.ts` file to protect a custom API route: - -```ts title="src/api/middlewares.ts" highlights={highlights} -import { - defineMiddlewares, - authenticate, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom/admin*", - middlewares: [authenticate("user", ["session", "bearer", "api-key"])], - }, - { - matcher: "/custom/customer*", - middlewares: [authenticate("customer", ["session", "bearer"])], - }, - ], -}) -``` - -The `authenticate` middleware function accepts three parameters: - -1. The type of user authenticating. Use `user` for authenticating admin users, and `customer` for authenticating customers. You can also pass `*` to allow all types of users, or pass an array of actor types. -2. An array of types of authentication methods allowed. Both `user` and `customer` scopes support `session` and `bearer`. The `admin` scope also supports the `api-key` authentication method. -3. An optional object of configurations accepting the following properties: - - `allowUnauthenticated`: (default: `false`) A boolean indicating whether authentication is required. For example, you may have an API route where you want to access the logged-in customer if available, but guest customers can still access it too. - - `allowUnregistered` (default: `false`): A boolean indicating if unregistered users should be allowed access. This is useful when you want to allow users who aren’t registered to access certain routes. - -### Example: Custom Actor Type - -For example, to require authentication of a custom actor type `manager` to an API route: - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - authenticate, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/manager*", - middlewares: [authenticate("manager", ["session", "bearer"])], - }, - ], -}) -``` - -Refer to the [Custom Actor-Type Guide](https://docs.medusajs.com/resources/commerce-modules/auth/create-actor-type/index.html.md) for detailed explanation on how to create a custom actor type and apply authentication middlewares. - -### Example: Allow Multiple Actor Types - -To allow multiple actor types to access an API route, pass an array of actor types to the `authenticate` middleware: - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - authenticate, -} from "@medusajs/framework/http" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom*", - middlewares: [authenticate(["user", "customer"], ["session", "bearer"])], - }, - ], -}) -``` - -### Override Authentication for Medusa's API Routes - -In some cases, you may want to override the authentication requirement for Medusa's API routes. For example, you may want to allow custom actor types to access existing protected API routes. - -It's not possible to change the [authentication middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) applied to an existing API route. Instead, you need to replicate the API route and apply the authentication middleware to it. - -Learn more in the [Override API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/override/index.html.md) chapter. - -*** - -## Access Authentication Details in API Routes - -To access the authentication details in an API route, such as the logged-in user's ID, set the type of the first request parameter to `AuthenticatedMedusaRequest`. It extends `MedusaRequest`: - -```ts highlights={[["7", "AuthenticatedMedusaRequest"]]} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - // ... -} -``` - -The `auth_context.actor_id` property of `AuthenticatedMedusaRequest` holds the ID of the authenticated user or customer. If there isn't any authenticated user or customer, `auth_context` is `undefined`. - -For example: - -```ts title="src/api/store/custom/route.ts" highlights={[["10", "actor_id"]]} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - const id = req.auth_context?.actor_id - - // ... -} -``` - -In this example, you retrieve the ID of the authenticated user, customer, or custom actor type from the `auth_context` property of the `AuthenticatedMedusaRequest` object. - -If you opt-out of authentication in a route as mentioned in the [Opt-Out section](#opt-out-of-default-authentication-requirement), you can't access the authenticated user or customer anymore. Use the [authenticate middleware](#protect-custom-api-routes) instead to protect the route. - -### Retrieve Logged-In Customer's Details - -You can access the logged-in customer’s ID in all API routes starting with `/store` using the `auth_context.actor_id` property of the `AuthenticatedMedusaRequest` object. You can then use [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve the customer details, or pass the ID to a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) that performs business logic. - -For example: - -```ts title="src/api/store/custom/route.ts" highlights={customerHighlights} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - const customerId = req.auth_context?.actor_id - const query = req.scope.resolve("query") - - const { data: [customer] } = await query.graph({ - entity: "customer", - fields: ["*"], - filters: { - id: customerId, - }, - }, { - throwIfKeyNotFound: true, - }) - - // do something with the customer data... -} -``` - -In this example, you retrieve the customer's ID and resolve Query from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). - -Then, you use Query to retrieve the customer details. The `throwIfKeyNotFound` option throws an error if the customer with the specified ID is not found. - -After that, you can use the customer's details in your API route. - -### Retrieve Logged-In Admin User's Details - -You can access the logged-in admin user’s ID in all API routes starting with `/admin` using the `auth_context.actor_id` property of the `AuthenticatedMedusaRequest` object. You can then use [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve the user details, or pass the ID to a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) that performs business logic. - -For example: - -```ts title="src/api/admin/custom/route.ts" highlights={adminHighlights} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - const userId = req.auth_context?.actor_id - const query = req.scope.resolve("query") - - const { data: [user] } = await query.graph({ - entity: "user", - fields: ["*"], - filters: { - id: userId, - }, - }, { - throwIfKeyNotFound: true, - }) - - // do something with the user data... -} -``` - -In this example, you retrieve the admin user's ID and resolve Query from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). - -Then, you use Query to retrieve the user details. The `throwIfKeyNotFound` option throws an error if the user with the specified ID is not found. - -After that, you can use the user's details in your API route. - - -# Retrieve Custom Links from Medusa's API Route - -In this chapter, you'll learn how to retrieve custom data models linked to existing Medusa data models from Medusa's API routes. - -## Why Retrieve Custom Linked Data Models? - -Often, you'll link custom data models to existing Medusa data models to implement custom features or expand on existing ones. - -For example, to add brands for products, you can create a `Brand` data model in a Brand Module, then [define a link](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) to the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md)'s `Product` data model. - -When you implement this customization, you might need to retrieve the brand of a product using the existing [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid). You can do this by passing the linked data model's name in the `fields` query parameter of the API route. - -*** - -## How to Retrieve Custom Linked Data Models Using `fields`? - -Most of Medusa's API routes accept a `fields` query parameter that allows you to specify the fields and relations to retrieve in the resource, such as a product. - -For example, to retrieve the brand of a product, you can pass the `brand` field in the `fields` query parameter of the [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid): - -```bash -curl 'http://localhost:9000/admin/products/{id}?fields=*brand' \ --H 'Authorization: Bearer {access_token}' -``` - -The `fields` query parameter accepts a comma-separated list of fields and relations to retrieve. To learn more about using the `fields` query parameter, refer to the [API Reference](https://docs.medusajs.com/api/store#select-fields-and-relations). - -By prefixing `brand` with an asterisk (`*`), you retrieve all the default fields of the product, including the `brand` field. If you don't include the `*` prefix, the response will only include the product's brand. - -*** - -## API Routes that Restrict Retrievable Fields - -Some of Medusa's API routes restrict the fields and relations you can retrieve, which means you can't pass your custom linked data models in the `fields` query parameter. Medusa makes this restriction to ensure the API routes are performant and secure. - -The API routes that restrict the fields and relations you can retrieve are: - -- [Customer Store API Routes](https://docs.medusajs.com/api/store#customers) -- [Customer Admin API Routes](https://docs.medusajs.com/api/admin#customers) -- [Product Category Admin API Routes](https://docs.medusajs.com/api/admin#product-categories) - -### How to Override Allowed Fields and Relations - -For these routes, you need to override the allowed fields and relations to be retrieved. You can do this by adding a [middleware](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) to those routes. - -For example, to allow retrieving the `b2b_company` of a customer using the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid), create the file `src/api/middlewares.ts` with the following content: - -Learn how to create a middleware in the [Middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md) chapter. - -```ts title="src/api/middlewares.ts" highlights={highlights} -import { defineMiddlewares } from "@medusajs/medusa" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/store/customers/me", - method: "GET", - middlewares: [ - (req, res, next) => { - req.allowed?.push("b2b_company") - next() - }, - ], - }, - ], -}) -``` - -In this example, you apply a middleware to the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid). - -The request object passed to middlewares has an `allowed` property that contains the fields and relations that can be retrieved. So, you modify the `allowed` array to include the `b2b_company` field. - -You can now retrieve the `b2b_company` field using the `fields` query parameter of the [Get Customer Admin API Route](https://docs.medusajs.com/api/admin#customers_getcustomersid): - -```bash -curl 'http://localhost:9000/admin/customers/{id}?fields=*b2b_company' \ --H 'Authorization: Bearer {access_token}' -``` - -In this example, you retrieve the `b2b_company` relation of the customer using the `fields` query parameter. - - -# Request Body and Query Parameter Validation - -In this chapter, you'll learn how to validate request body and query parameters in your custom API route. - -## Request Validation - -Consider you're creating a `POST` API route at `/custom`. It accepts two parameters `a` and `b` that are required numbers, and returns their sum. - -Medusa provides two middlewares to validate the request body and query paramters of incoming requests to your custom API routes: - -- `validateAndTransformBody` to validate the request's body parameters against a schema. -- `validateAndTransformQuery` to validate the request's query parameters against a schema. - -Both middlewares accept a [Zod](https://zod.dev/) schema as a parameter, which gives you flexibility in how you define your validation schema with complex rules. - -The next steps explain how to add request body and query parameter validation to the API route mentioned earlier. - -*** - -## How to Validate Request Body - -### Step 1: Create Validation Schema - -Medusa uses [Zod](https://zod.dev/) to create validation schemas. These schemas are then used to validate incoming request bodies or query parameters. - -To create a validation schema with Zod, create a `validators.ts` file in any `src/api` subfolder. This file holds Zod schemas for each of your API routes. - -For example, create the file `src/api/custom/validators.ts` with the following content: - -```ts title="src/api/custom/validators.ts" -import { z } from "zod" - -export const PostStoreCustomSchema = z.object({ - a: z.number(), - b: z.number(), -}) -``` - -The `PostStoreCustomSchema` variable is a Zod schema that indicates the request body is valid if: - -1. It's an object. -2. It has a property `a` that is a required number. -3. It has a property `b` that is a required number. - -### Step 2: Add Request Body Validation Middleware - -To use this schema for validating the body parameters of requests to `/custom`, use the `validateAndTransformBody` middleware provided by `@medusajs/framework/http`. It accepts the Zod schema as a parameter. - -For example, create the file `src/api/middlewares.ts` with the following content: - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - validateAndTransformBody, -} from "@medusajs/framework/http" -import { PostStoreCustomSchema } from "./custom/validators" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom", - method: "POST", - middlewares: [ - validateAndTransformBody(PostStoreCustomSchema), - ], - }, - ], -}) -``` - -This applies the `validateAndTransformBody` middleware on `POST` requests to `/custom`. It uses the `PostStoreCustomSchema` as the validation schema. - -#### How the Validation Works - -If a request's body parameters don't pass the validation, the `validateAndTransformBody` middleware throws an error indicating the validation errors. - -If a request's body parameters are validated successfully, the middleware sets the validated body parameters in the `validatedBody` property of `MedusaRequest`. - -### Step 3: Use Validated Body in API Route - -In your API route, consume the validated body using the `validatedBody` property of `MedusaRequest`. - -For example, create the file `src/api/custom/route.ts` with the following content: - -```ts title="src/api/custom/route.ts" highlights={routeHighlights} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" -import { z } from "zod" -import { PostStoreCustomSchema } from "./validators" - -type PostStoreCustomSchemaType = z.infer< - typeof PostStoreCustomSchema -> - -export const POST = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - sum: req.validatedBody.a + req.validatedBody.b, - }) -} -``` - -In the API route, you use the `validatedBody` property of `MedusaRequest` to access the values of the `a` and `b` properties. - -To pass the request body's type as a type parameter to `MedusaRequest`, use Zod's `infer` type that accepts the type of a schema as a parameter. - -### Test it Out - -To test out the validation, send a `POST` request to `/custom` passing `a` and `b` body parameters. You can try sending incorrect request body parameters to test out the validation. - -For example, if you omit the `a` parameter, you'll receive a `400` response code with the following response data: - -```json -{ - "type": "invalid_data", - "message": "Invalid request: Field 'a' is required" -} -``` - -*** - -## How to Validate Request Query Parameters - -The steps to validate the request query parameters are the similar to that of [validating the body](#how-to-validate-request-body). - -### Step 1: Create Validation Schema - -The first step is to create a schema with Zod with the rules of the accepted query parameters. - -Consider that the API route accepts two query parameters `a` and `b` that are numbers, similar to the previous section. - -Create the file `src/api/custom/validators.ts` with the following content: - -```ts title="src/api/custom/validators.ts" -import { z } from "zod" - -export const PostStoreCustomSchema = z.object({ - a: z.preprocess( - (val) => { - if (val && typeof val === "string") { - return parseInt(val) - } - return val - }, - z - .number() - ), - b: z.preprocess( - (val) => { - if (val && typeof val === "string") { - return parseInt(val) - } - return val - }, - z - .number() - ), -}) -``` - -Since a query parameter's type is originally a string or array of strings, you have to use Zod's `preprocess` method to validate other query types, such as numbers. - -For both `a` and `b`, you transform the query parameter's value to an integer first if it's a string, then, you check that the resulting value is a number. - -### Step 2: Add Request Query Validation Middleware - -Next, you'll use the schema to validate incoming requests' query parameters to the `/custom` API route. - -Add the `validateAndTransformQuery` middleware to the API route in the file `src/api/middlewares.ts`: - -```ts title="src/api/middlewares.ts" -import { - validateAndTransformQuery, - defineMiddlewares, -} from "@medusajs/framework/http" -import { PostStoreCustomSchema } from "./custom/validators" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/custom", - method: "POST", - middlewares: [ - validateAndTransformQuery( - PostStoreCustomSchema, - {} - ), - ], - }, - ], -}) -``` - -The `validateAndTransformQuery` accepts two parameters: - -- The first one is the Zod schema to validate the query parameters against. -- The second one is an object of options for retrieving data using Query, which you can learn more about in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). - -#### How the Validation Works - -If a request's query parameters don't pass the validation, the `validateAndTransformQuery` middleware throws an error indicating the validation errors. - -If a request's query parameters are validated successfully, the middleware sets the validated query parameters in the `validatedQuery` property of `MedusaRequest`. - -### Step 3: Use Validated Query in API Route - -Finally, use the validated query in the API route. The `MedusaRequest` parameter has a `validatedQuery` parameter that you can use to access the validated parameters. - -For example, create the file `src/api/custom/route.ts` with the following content: - -```ts title="src/api/custom/route.ts" -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const a = req.validatedQuery.a as number - const b = req.validatedQuery.b as number - - res.json({ - sum: a + b, - }) -} -``` - -In the API route, you use the `validatedQuery` property of `MedusaRequest` to access the values of the `a` and `b` properties as numbers, then return in the response their sum. - -### Test it Out - -To test out the validation, send a `POST` request to `/custom` with `a` and `b` query parameters. You can try sending incorrect query parameters to see how the validation works. - -For example, if you omit the `a` parameter, you'll receive a `400` response code with the following response data: - -```json -{ - "type": "invalid_data", - "message": "Invalid request: Field 'a' is required" -} -``` - -*** - -## Learn More About Validation Schemas - -To see different examples and learn more about creating a validation schema, refer to [Zod's documentation](https://zod.dev). - - -# API Route Response - -In this chapter, you'll learn how to send a response in your API route. - -## Send a JSON Response - -To send a JSON response, use the `json` method of the `MedusaResponse` object passed as the second parameter of your API route handler. - -For example: - -```ts title="src/api/custom/route.ts" highlights={jsonHighlights} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.json({ - message: "Hello, World!", - }) -} -``` - -This API route returns the following JSON object: - -```json -{ - "message": "Hello, World!" -} -``` - -*** - -## Set Response Status Code - -By default, setting the JSON data using the `json` method returns a response with a `200` status code. - -To change the status code, use the `status` method of the `MedusaResponse` object. - -For example: - -```ts title="src/api/custom/route.ts" highlights={statusHighlight} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.status(201).json({ - message: "Hello, World!", - }) -} -``` - -The response of this API route has the status code `201`. - -*** - -## Change Response Content Type - -To return response data other than a JSON object, use the `writeHead` method of the `MedusaResponse` object. It allows you to set the response headers, including the content type. - -For example, to create an API route that returns an event stream: - -```ts highlights={streamHighlights} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - res.writeHead(200, { - "Content-Type": "text/event-stream", - "Cache-Control": "no-cache", - Connection: "keep-alive", - }) - - const interval = setInterval(() => { - res.write("Streaming data...\n") - }, 3000) - - req.on("end", () => { - clearInterval(interval) - res.end() - }) -} -``` - -The `writeHead` method accepts two parameters: - -1. The first one is the response's status code. -2. The second is an object of key-value pairs to set the headers of the response. - -This API route opens a stream by setting the `Content-Type` in the header to `text/event-stream`. It then simulates a stream by creating an interval that writes the stream data every three seconds. - -*** - -## Do More with Responses - -The `MedusaResponse` type is based on [Express's Response](https://expressjs.com/en/api.html#res). Refer to their API reference for other uses of responses. - - # Event Data Payload In this chapter, you'll learn how subscribers receive an event's data payload. @@ -9402,207 +11602,64 @@ await link.create({ ``` -# Link +# Module Link Direction -In this chapter, you’ll learn what Link is and how to use it to manage links. +In this chapter, you'll learn about the difference in module link directions, and which to use based on your use case. -As of [Medusa v2.2.0](https://github.com/medusajs/medusa/releases/tag/v2.2.0), Remote Link has been deprecated in favor of Link. They have the same usage, so you only need to change the key used to resolve the tool from the Medusa container as explained below. +The details in this chapter don't apply to [Read-Only Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/read-only/index.html.md). Refer to the [Read-Only Module Links chapter](https://docs.medusajs.com/learn/fundamentals/module-links/read-only/index.html.md) for more information on read-only links and their direction. -## What is Link? +## Link Direction -Link is a class with utility methods to manage links between data models. It’s registered in the Medusa container under the `link` registration name. +The module link's direction depends on the order you pass the data model configuration parameters to `defineLink`. -For example: +For example, the following defines a link from the Blog Module's `post` data model to the Product Module's `product` data model: -```ts collapsibleLines="1-9" expandButtonLabel="Show Imports" -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { - ContainerRegistrationKeys, -} from "@medusajs/framework/utils" - -export async function POST( - req: MedusaRequest, - res: MedusaResponse -): Promise { - const link = req.scope.resolve( - ContainerRegistrationKeys.LINK - ) - - // ... -} +```ts +export default defineLink( + BlogModule.linkable.post, + ProductModule.linkable.product +) ``` -You can use its methods to manage links, such as create or delete links. +Whereas the following defines a link from the Product Module's `product` data model to the Blog Module's `post` data model: + +```ts +export default defineLink( + ProductModule.linkable.product, + BlogModule.linkable.post +) +``` + +The above links are two different links that serve different purposes. *** -## Create Link +## Which Link Direction to Use? -To create a link between records of two data models, use the `create` method of Link. +### Extend Data Models -For example: +If you're adding a link to a data model to extend it and add new fields, define the link from the main data model to the custom data model. + +For example, consider you want to add a `subtitle` custom field to the `product` data model. To do that, you define a `Subtitle` data model in your module, then define a link from the `Product` data model to it: ```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_123", - }, -}) +export default defineLink( + ProductModule.linkable.product, + BlogModule.linkable.subtitle +) ``` -The `create` method accepts as a parameter an object. The object’s keys are the names of the linked modules. +### Associate Data Models -The keys (names of linked modules) must be in the same [direction](https://docs.medusajs.com/learn/fundamentals/module-links/directions/index.html.md) of the link definition. +If you're linking data models to indicate an association between them, define the link from the custom data model to the main data model. -The value of each module’s property is an object, whose keys are of the format `{data_model_snake_name}_id`, and values are the IDs of the linked record. - -So, in the example above, you link a record of the `MyCustom` data model in a `hello` module to a `Product` record in the Product Module. - -### Enforced Integrity Constraints on Link Creation - -Medusa enforces integrity constraints on links based on the link's relation type. So, an error is thrown in the following scenarios: - -- If the link is one-to-one and one of the linked records already has a link to another record of the same data model. For example: +For example, consider you have `Post` data model representing a blog post, and you want to associate a blog post with a product. To do that, define a link from the `Post` data model to `Product`: ```ts -// no error -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_123", - }, -}) - -// throws an error because `prod_123` already has a link to `mc_123` -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_456", - }, -}) -``` - -- If the link is one-to-many and the "one" side already has a link to another record of the same data model. For example, if a product can have many `MyCustom` records, but a `MyCustom` record can only have one product: - -```ts -// no error -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_123", - }, -}) - -// also no error -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_456", - }, -}) - -// throws an error because `mc_123` already has a link to `prod_123` -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_456", - }, - "helloModuleService": { - my_custom_id: "mc_123", - }, -}) -``` - -There are no integrity constraints in a many-to-many link, so you can create multiple links between the same records. - -*** - -## Dismiss Link - -To remove a link between records of two data models, use the `dismiss` method of Link. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.dismiss({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - "helloModuleService": { - my_custom_id: "mc_123", - }, -}) -``` - -The `dismiss` method accepts the same parameter type as the [create method](#create-link). - -The keys (names of linked modules) must be in the same [direction](https://docs.medusajs.com/learn/fundamentals/module-links/directions/index.html.md) of the link definition. - -*** - -## Cascade Delete Linked Records - -If a record is deleted, use the `delete` method of Link to delete all linked records. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await productModuleService.deleteVariants([variant.id]) - -await link.delete({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, -}) -``` - -This deletes all records linked to the deleted product. - -*** - -## Restore Linked Records - -If a record that was previously soft-deleted is now restored, use the `restore` method of Link to restore all linked records. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await productModuleService.restoreProducts(["prod_123"]) - -await link.restore({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, -}) +export default defineLink( + BlogModule.linkable.post, + ProductModule.linkable.product +) ``` @@ -10162,6 +12219,900 @@ Try passing one of the Query configuration parameters, like `fields` or `limit`, Learn more about [specifing fields and relations](https://docs.medusajs.com/api/store#select-fields-and-relations) and [pagination](https://docs.medusajs.com/api/store#pagination) in the API reference. +# Link + +In this chapter, you’ll learn what Link is and how to use it to manage links. + +As of [Medusa v2.2.0](https://github.com/medusajs/medusa/releases/tag/v2.2.0), Remote Link has been deprecated in favor of Link. They have the same usage, so you only need to change the key used to resolve the tool from the Medusa container as explained below. + +## What is Link? + +Link is a class with utility methods to manage links between data models. It’s registered in the Medusa container under the `link` registration name. + +For example: + +```ts collapsibleLines="1-9" expandButtonLabel="Show Imports" +import { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { + ContainerRegistrationKeys, +} from "@medusajs/framework/utils" + +export async function POST( + req: MedusaRequest, + res: MedusaResponse +): Promise { + const link = req.scope.resolve( + ContainerRegistrationKeys.LINK + ) + + // ... +} +``` + +You can use its methods to manage links, such as create or delete links. + +*** + +## Create Link + +To create a link between records of two data models, use the `create` method of Link. + +For example: + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_123", + }, +}) +``` + +The `create` method accepts as a parameter an object. The object’s keys are the names of the linked modules. + +The keys (names of linked modules) must be in the same [direction](https://docs.medusajs.com/learn/fundamentals/module-links/directions/index.html.md) of the link definition. + +The value of each module’s property is an object, whose keys are of the format `{data_model_snake_name}_id`, and values are the IDs of the linked record. + +So, in the example above, you link a record of the `MyCustom` data model in a `hello` module to a `Product` record in the Product Module. + +### Enforced Integrity Constraints on Link Creation + +Medusa enforces integrity constraints on links based on the link's relation type. So, an error is thrown in the following scenarios: + +- If the link is one-to-one and one of the linked records already has a link to another record of the same data model. For example: + +```ts +// no error +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_123", + }, +}) + +// throws an error because `prod_123` already has a link to `mc_123` +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_456", + }, +}) +``` + +- If the link is one-to-many and the "one" side already has a link to another record of the same data model. For example, if a product can have many `MyCustom` records, but a `MyCustom` record can only have one product: + +```ts +// no error +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_123", + }, +}) + +// also no error +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_456", + }, +}) + +// throws an error because `mc_123` already has a link to `prod_123` +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_456", + }, + "helloModuleService": { + my_custom_id: "mc_123", + }, +}) +``` + +There are no integrity constraints in a many-to-many link, so you can create multiple links between the same records. + +*** + +## Dismiss Link + +To remove a link between records of two data models, use the `dismiss` method of Link. + +For example: + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.dismiss({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + "helloModuleService": { + my_custom_id: "mc_123", + }, +}) +``` + +The `dismiss` method accepts the same parameter type as the [create method](#create-link). + +The keys (names of linked modules) must be in the same [direction](https://docs.medusajs.com/learn/fundamentals/module-links/directions/index.html.md) of the link definition. + +*** + +## Cascade Delete Linked Records + +If a record is deleted, use the `delete` method of Link to delete all linked records. + +For example: + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await productModuleService.deleteVariants([variant.id]) + +await link.delete({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, +}) +``` + +This deletes all records linked to the deleted product. + +*** + +## Restore Linked Records + +If a record that was previously soft-deleted is now restored, use the `restore` method of Link to restore all linked records. + +For example: + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await productModuleService.restoreProducts(["prod_123"]) + +await link.restore({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, +}) +``` + + +# Query Context + +In this chapter, you'll learn how to pass contexts when retrieving data with [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). + +## What is Query Context? + +Query context is a way to pass additional information when retrieving data with Query. This data can be useful when applying custom transformations to the retrieved data based on the current context. + +For example, consider you have a Blog Module with posts and authors. You can accept the user's language as a context and return the posts in the user's language. Another example is how Medusa uses Query Context to [retrieve product variants' prices based on the customer's currency](https://docs.medusajs.com/resources/commerce-modules/product/guides/price/index.html.md). + +*** + +## How to Use Query Context + +The `query.graph` method accepts an optional `context` parameter that can be used to pass additional context either to the data model you're retrieving (for example, `post`), or its related and linked models (for example, `author`). + +You initialize a context using `QueryContext` from the Modules SDK. It accepts an object of contexts as an argument. + +For example, to retrieve posts using Query while passing the user's language as a context: + +```ts +const { data } = await query.graph({ + entity: "post", + fields: ["*"], + context: QueryContext({ + lang: "es", + }), +}) +``` + +In this example, you pass in the context a `lang` property whose value is `es`. + +Then, to handle the context while retrieving records of the data model, in the associated module's service you override the generated `list` method of the data model. + +For example, continuing the example above, you can override the `listPosts` method of the Blog Module's service to handle the context: + +```ts highlights={highlights2} +import { MedusaContext, MedusaService } from "@medusajs/framework/utils" +import { Context, FindConfig } from "@medusajs/framework/types" +import Post from "./models/post" +import Author from "./models/author" + +class BlogModuleService extends MedusaService({ + Post, + Author, +}){ + // @ts-ignore + async listPosts( + filters?: any, + config?: FindConfig | undefined, + @MedusaContext() sharedContext?: Context | undefined + ) { + const context = filters.context ?? {} + delete filters.context + + let posts = await super.listPosts(filters, config, sharedContext) + + if (context.lang === "es") { + posts = posts.map((post) => { + return { + ...post, + title: post.title + " en español", + } + }) + } + + return posts + } +} + +export default BlogModuleService +``` + +In the above example, you override the generated `listPosts` method. This method receives as a first parameter the filters passed to the query, but it also includes a `context` property that holds the context passed to the query. + +You extract the context from `filters`, then retrieve the posts using the parent's `listPosts` method. After that, if the language is set in the context, you transform the titles of the posts. + +All posts returned will now have their titles appended with "en español". + +Learn more about the generated `list` method in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/list/index.html.md). + +### Using Pagination with Query + +If you pass pagination fields to `query.graph`, you must also override the `listAndCount` method in the service. + +For example, following along with the previous example, you must override the `listAndCountPosts` method of the Blog Module's service: + +```ts +import { MedusaContext, MedusaService } from "@medusajs/framework/utils" +import { Context, FindConfig } from "@medusajs/framework/types" +import Post from "./models/post" +import Author from "./models/author" + +class BlogModuleService extends MedusaService({ + Post, + Author, +}){ + // @ts-ignore + async listAndCountPosts( + filters?: any, + config?: FindConfig | undefined, + @MedusaContext() sharedContext?: Context | undefined + ) { + const context = filters.context ?? {} + delete filters.context + + const result = await super.listAndCountPosts( + filters, + config, + sharedContext + ) + + if (context.lang === "es") { + result.posts = posts.map((post) => { + return { + ...post, + title: post.title + " en español", + } + }) + } + + return result + } +} + +export default BlogModuleService +``` + +Now, the `listAndCountPosts` method will handle the context passed to `query.graph` when you pass pagination fields. You can also move the logic to transform the posts' titles to a separate method and call it from both `listPosts` and `listAndCountPosts`. + +*** + +## Passing Query Context to Related Data Models + +If you're retrieving a data model and you want to pass context to its associated model in the same module, you can pass them as part of `QueryContext`'s parameter, then handle them in the same `list` method. + +For linked data models, check out the [next section](#passing-query-context-to-linked-data-models). + +For example, to pass a context for the post's authors: + +```ts highlights={highlights3} +const { data } = await query.graph({ + entity: "post", + fields: ["*"], + context: QueryContext({ + lang: "es", + author: QueryContext({ + lang: "es", + }), + }), +}) +``` + +Then, in the `listPosts` method, you can handle the context for the post's authors: + +```ts highlights={highlights4} +import { MedusaContext, MedusaService } from "@medusajs/framework/utils" +import { Context, FindConfig } from "@medusajs/framework/types" +import Post from "./models/post" +import Author from "./models/author" + +class BlogModuleService extends MedusaService({ + Post, + Author, +}){ + // @ts-ignore + async listPosts( + filters?: any, + config?: FindConfig | undefined, + @MedusaContext() sharedContext?: Context | undefined + ) { + const context = filters.context ?? {} + delete filters.context + + let posts = await super.listPosts(filters, config, sharedContext) + + const isPostLangEs = context.lang === "es" + const isAuthorLangEs = context.author?.lang === "es" + + if (isPostLangEs || isAuthorLangEs) { + posts = posts.map((post) => { + return { + ...post, + title: isPostLangEs ? post.title + " en español" : post.title, + author: { + ...post.author, + name: isAuthorLangEs ? post.author.name + " en español" : post.author.name, + }, + } + }) + } + + return posts + } +} + +export default BlogModuleService +``` + +The context in `filters` will also have the context for `author`, which you can use to make transformations to the post's authors. + +*** + +## Passing Query Context to Linked Data Models + +If you're retrieving a data model and you want to pass context to a linked model in a different module, pass to the `context` property an object instead, where its keys are the linked model's name and the values are the context for that linked model. + +For example, consider the Product Module's `Product` data model is linked to the Blog Module's `Post` data model. You can pass context to the `Post` data model while retrieving products like so: + +```ts highlights={highlights5} +const { data } = await query.graph({ + entity: "product", + fields: ["*", "post.*"], + context: { + post: QueryContext({ + lang: "es", + }), + }, +}) +``` + +In this example, you retrieve products and their associated posts. You also pass a context for `post`, indicating the customer's language. + +To handle the context, you override the generated `listPosts` method of the Blog Module as explained [previously](#how-to-use-query-context). + + +# Scheduled Jobs Number of Executions + +In this chapter, you'll learn how to set a limit on the number of times a scheduled job is executed. + +## numberOfExecutions Option + +The export configuration object of the scheduled job accepts an optional property `numberOfExecutions`. Its value is a number indicating how many times the scheduled job can be executed during the Medusa application's runtime. + +For example: + +```ts highlights={highlights} +export default async function myCustomJob() { + console.log("I'll be executed three times only.") +} + +export const config = { + name: "hello-world", + // execute every minute + schedule: "* * * * *", + numberOfExecutions: 3, +} +``` + +The above scheduled job has the `numberOfExecutions` configuration set to `3`. + +So, it'll only execute 3 times, each every minute, then it won't be executed anymore. + +If you restart the Medusa application, the scheduled job will be executed again until reaching the number of executions specified. + + +# Create a Plugin + +In this chapter, you'll learn how to create a Medusa plugin and publish it. + +A [plugin](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md) is a package of reusable Medusa customizations that you can install in any Medusa application. By creating and publishing a plugin, you can reuse your Medusa customizations across multiple projects or share them with the community. + +Plugins are available starting from [Medusa v2.3.0](https://github.com/medusajs/medusa/releases/tag/v2.3.0). + +## 1. Create a Plugin Project + +Plugins are created in a separate Medusa project. This makes the development and publishing of the plugin easier. Later, you'll install that plugin in your Medusa application to test it out and use it. + +Medusa's `create-medusa-app` CLI tool provides the option to create a plugin project. Run the following command to create a new plugin project: + +```bash +npx create-medusa-app my-plugin --plugin +``` + +This will create a new Medusa plugin project in the `my-plugin` directory. + +### Plugin Directory Structure + +After the installation is done, the plugin structure will look like this: + +![Directory structure of a plugin project](https://res.cloudinary.com/dza7lstvk/image/upload/v1737019441/Medusa%20Book/project-dir_q4xtri.jpg) + +- `src/`: Contains the Medusa customizations. +- `src/admin`: Contains [admin extensions](https://docs.medusajs.com/learn/fundamentals/admin/index.html.md). +- `src/api`: Contains [API routes](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) and [middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). You can add store, admin, or any custom API routes. +- `src/jobs`: Contains [scheduled jobs](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md). +- `src/links`: Contains [module links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). +- `src/modules`: Contains [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). +- `src/provider`: Contains [module providers](#create-module-providers). +- `src/subscribers`: Contains [subscribers](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). +- `src/workflows`: Contains [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). You can also add [hooks](https://docs.medusajs.com/learn/fundamentals/workflows/add-workflow-hook/index.html.md) under `src/workflows/hooks`. +- `package.json`: Contains the plugin's package information, including general information and dependencies. +- `tsconfig.json`: Contains the TypeScript configuration for the plugin. + +*** + +## 2. Prepare Plugin + +### Package Name + +Before developing, testing, and publishing your plugin, make sure its name in `package.json` is correct. This is the name you'll use to install the plugin in your Medusa application. + +For example: + +```json title="package.json" +{ + "name": "@myorg/plugin-name", + // ... +} +``` + +### Package Keywords + +Medusa scrapes NPM for a list of plugins that integrate third-party services, to later showcase them on the Medusa website. If you want your plugin to appear in that listing, make sure to add the `medusa-v2` and `medusa-plugin-integration` keywords to the `keywords` field in `package.json`. + +Only plugins that integrate third-party services are listed in the Medusa integrations page. If your plugin doesn't integrate a third-party service, you can skip this step. + +```json title="package.json" +{ + "keywords": [ + "medusa-plugin-integration", + "medusa-v2" + ], + // ... +} +``` + +In addition, make sure to use one of the following keywords based on your integration type: + +|Keyword|Description|Example| +|---|---|---| +|\`medusa-plugin-analytics\`|Analytics service integration|Google Analytics| +|\`medusa-plugin-auth\`|Authentication service integration|Auth0| +|\`medusa-plugin-cms\`|CMS service integration|Contentful| +|\`medusa-plugin-notification\`|Notification service integration|Twilio SMS| +|\`medusa-plugin-payment\`|Payment service integration|PayPal| +|\`medusa-plugin-search\`|Search service integration|MeiliSearch| +|\`medusa-plugin-shipping\`|Shipping service integration|DHL| +|\`medusa-plugin-other\`|Other third-party integrations|Sentry| + +### Package Dependencies + +Your plugin project will already have the dependencies mentioned in this section. Unless you made changes to the dependencies, you can skip this section. + +In the `package.json` file you must have the Medusa dependencies as `devDependencies` and `peerDependencies`. In addition, you must have `@swc/core` as a `devDependency`, as it's used by the plugin CLI tools. + +For example, assuming `2.5.0` is the latest Medusa version: + +```json title="package.json" +{ + "devDependencies": { + "@medusajs/admin-sdk": "2.5.0", + "@medusajs/cli": "2.5.0", + "@medusajs/framework": "2.5.0", + "@medusajs/medusa": "2.5.0", + "@medusajs/test-utils": "2.5.0", + "@medusajs/ui": "4.0.4", + "@medusajs/icons": "2.5.0", + "@swc/core": "1.5.7", + }, + "peerDependencies": { + "@medusajs/admin-sdk": "2.5.0", + "@medusajs/cli": "2.5.0", + "@medusajs/framework": "2.5.0", + "@medusajs/test-utils": "2.5.0", + "@medusajs/medusa": "2.5.0", + "@medusajs/ui": "4.0.3", + "@medusajs/icons": "2.5.0", + } +} +``` + +### Package Exports + +Your plugin project will already have the exports mentioned in this section. Unless you made changes to the exports or you created your plugin before [Medusa v2.7.0](https://github.com/medusajs/medusa/releases/tag/v2.7.0), you can skip this section. + +In the `package.json` file, make sure your plugin has the following exports: + +```json title="package.json" +{ + "exports": { + "./package.json": "./package.json", + "./workflows": "./.medusa/server/src/workflows/index.js", + "./.medusa/server/src/modules/*": "./.medusa/server/src/modules/*/index.js", + "./providers/*": "./.medusa/server/src/providers/*/index.js", + "./admin": { + "import": "./.medusa/server/src/admin/index.mjs", + "require": "./.medusa/server/src/admin/index.js", + "default": "./.medusa/server/src/admin/index.js" + }, + "./*": "./.medusa/server/src/*.js" + } +} +``` + +Aside from the `./package.json`, `./providers`, and `./admin`, these exports are only a recommendation. You can cherry-pick the files and directories you want to export. + +The plugin exports the following files and directories: + +- `./package.json`: The `package.json` file. Medusa needs to access the `package.json` when registering the plugin. +- `./workflows`: The workflows exported in `./src/workflows/index.ts`. +- `./.medusa/server/src/modules/*`: The definition file of modules. This is useful if you create links to the plugin's modules in the Medusa application. +- `./providers/*`: The definition file of module providers. This is useful if your plugin includes a module provider, allowing you to register the plugin's providers in Medusa applications. Learn more in the [Create Module Providers](#create-module-providers) section. +- `./admin`: The admin extensions exported in `./src/admin/index.ts`. +- `./*`: Any other files in the plugin's `src` directory. + +*** + +## 3. Publish Plugin Locally for Development and Testing + +Medusa's CLI tool provides commands to simplify developing and testing your plugin in a local Medusa application. You start by publishing your plugin in the local package registry, then install it in your Medusa application. You can then watch for changes in the plugin as you develop it. + +### Publish and Install Local Package + +### Prerequisites + +- [Medusa application installed.](https://docs.medusajs.com/learn/installation/index.html.md) + +The first time you create your plugin, you need to publish the package into a local package registry, then install it in your Medusa application. This is a one-time only process. + +To publish the plugin to the local registry, run the following command in your plugin project: + +```bash title="Plugin project" +npx medusa plugin:publish +``` + +This command uses [Yalc](https://github.com/wclr/yalc) under the hood to publish the plugin to a local package registry. The plugin is published locally under the name you specified in `package.json`. + +Next, navigate to your Medusa application: + +```bash title="Medusa application" +cd ~/path/to/medusa-app +``` + +Make sure to replace `~/path/to/medusa-app` with the path to your Medusa application. + +Then, if your project was created before v2.3.1 of Medusa, make sure to install `yalc` as a development dependency: + +```bash npm2yarn badgeLabel="Medusa Application" badgeColor="green" +npm install --save-dev yalc +``` + +After that, run the following Medusa CLI command to install the plugin: + +```bash title="Medusa application" +npx medusa plugin:add @myorg/plugin-name +``` + +Make sure to replace `@myorg/plugin-name` with the name of your plugin as specified in `package.json`. Your plugin will be installed from the local package registry into your Medusa application. + +### Register Plugin in Medusa Application + +After installing the plugin, you need to register it in your Medusa application in the configurations defined in `medusa-config.ts`. + +Add the plugin to the `plugins` array in the `medusa-config.ts` file: + +```ts title="medusa-config.ts" highlights={pluginHighlights} +module.exports = defineConfig({ + // ... + plugins: [ + { + resolve: "@myorg/plugin-name", + options: {}, + }, + ], +}) +``` + +The `plugins` configuration is an array of objects where each object has a `resolve` key whose value is the name of the plugin package. + +#### Pass Module Options through Plugin + +Each plugin configuration also accepts an `options` property, whose value is an object of options to pass to the plugin's modules. + +For example: + +```ts title="medusa-config.ts" highlights={pluginOptionsHighlight} +module.exports = defineConfig({ + // ... + plugins: [ + { + resolve: "@myorg/plugin-name", + options: { + apiKey: true, + }, + }, + ], +}) +``` + +The `options` property in the plugin configuration is passed to all modules in the plugin. Learn more about module options in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/options/index.html.md). + +### Watch Plugin Changes During Development + +While developing your plugin, you can watch for changes in the plugin and automatically update the plugin in the Medusa application using it. This is the only command you'll continuously need during your plugin development. + +To do that, run the following command in your plugin project: + +```bash title="Plugin project" +npx medusa plugin:develop +``` + +This command will: + +- Watch for changes in the plugin. Whenever a file is changed, the plugin is automatically built. +- Publish the plugin changes to the local package registry. This will automatically update the plugin in the Medusa application using it. You can also benefit from real-time HMR updates of admin extensions. + +### Start Medusa Application + +You can start your Medusa application's development server to test out your plugin: + +```bash npm2yarn badgeLabel="Medusa Application" badgeColor="green" +npm run dev +``` + +While your Medusa application is running and the plugin is being watched, you can test your plugin while developing it in the Medusa application. + +*** + +## 4. Create Customizations in the Plugin + +You can now build your plugin's customizations. The following guide explains how to build different customizations in your plugin. + +- [Create a module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md) +- [Create a module link](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) +- [Create a workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) +- [Add a workflow hook](https://docs.medusajs.com/learn/fundamentals/workflows/add-workflow-hook/index.html.md) +- [Create an API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) +- [Add a subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) +- [Add a scheduled job](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md) +- [Add an admin widget](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md) +- [Add an admin UI route](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md) + +While building those customizations, you can test them in your Medusa application by [watching the plugin changes](#watch-plugin-changes-during-development) and [starting the Medusa application](#start-medusa-application). + +### Generating Migrations for Modules + +During your development, you may need to generate migrations for modules in your plugin. To do that, first, add the following environment variables in your plugin project: + +```plain title="Plugin project" +DB_USERNAME=postgres +DB_PASSWORD=123... +DB_HOST=localhost +DB_PORT=5432 +DB_NAME=db_name +``` + +You can add these environment variables in a `.env` file in your plugin project. The variables are: + +- `DB_USERNAME`: The username of the PostgreSQL user to connect to the database. +- `DB_PASSWORD`: The password of the PostgreSQL user to connect to the database. +- `DB_HOST`: The host of the PostgreSQL database. Typically, it's `localhost` if you're running the database locally. +- `DB_PORT`: The port of the PostgreSQL database. Typically, it's `5432` if you're running the database locally. +- `DB_NAME`: The name of the PostgreSQL database to connect to. + +Then, run the following command in your plugin project to generate migrations for the modules in your plugin: + +```bash title="Plugin project" +npx medusa plugin:db:generate +``` + +This command generates migrations for all modules in the plugin. + +Finally, run these migrations on the Medusa application that the plugin is installed in using the `db:migrate` command: + +```bash title="Medusa application" +npx medusa db:migrate +``` + +The migrations in your application, including your plugin, will run and update the database. + +### Importing Module Resources + +In the [Prepare Plugin](#2-prepare-plugin) section, you learned about [exported resources](#package-exports) in your plugin. + +These exports allow you to import your plugin resources in your Medusa application, including workflows, links and modules. + +For example, to import the plugin's workflow in your Medusa application: + +`@myorg/plugin-name` is the plugin package's name. + +```ts +import { Workflow1, Workflow2 } from "@myorg/plugin-name/workflows" +import BlogModule from "@myorg/plugin-name/modules/blog" +// import other files created in plugin like ./src/types/blog.ts +import BlogType from "@myorg/plugin-name/types/blog" +``` + +### Create Module Providers + +The [exported resources](#package-exports) also allow you to import module providers in your plugin and register them in the Medusa application's configuration. A module provider is a module that provides the underlying logic or integration related to a commerce or Infrastructure Module. + +For example, assuming your plugin has a [Notification Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/notification/index.html.md) called `my-notification`, you can register it in your Medusa application's configuration like this: + +`@myorg/plugin-name` is the plugin package's name. + +```ts highlights={[["9"]]} title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/notification", + options: { + providers: [ + { + resolve: "@myorg/plugin-name/providers/my-notification", + id: "my-notification", + options: { + channels: ["email"], + // provider options... + }, + }, + ], + }, + }, + ], +}) +``` + +You pass to `resolve` the path to the provider relative to the plugin package. So, in this example, the `my-notification` provider is located in `./src/providers/my-notification/index.ts` of the plugin. + +To learn how to create module providers, refer to the following guides: + +- [File Module Provider](https://docs.medusajs.com/resources/references/file-provider-module/index.html.md) +- [Notification Module Provider](https://docs.medusajs.com/resources/references/notification-provider-module/index.html.md) +- [Auth Module Provider](https://docs.medusajs.com/resources/references/auth/provider/index.html.md) +- [Payment Module Provider](https://docs.medusajs.com/resources/references/payment/provider/index.html.md) +- [Fulfillment Module Provider](https://docs.medusajs.com/resources/references/fulfillment/provider/index.html.md) +- [Tax Module Provider](https://docs.medusajs.com/resources/references/tax/provider/index.html.md) + +*** + +## 5. Publish Plugin to NPM + +Make sure to add the keywords mentioned in the [Package Keywords](#package-keywords) section in your plugin's `package.json` file. + +Medusa's CLI tool provides a command that bundles your plugin to be published to npm. Once you're ready to publish your plugin publicly, run the following command in your plugin project: + +```bash +npx medusa plugin:build +``` + +The command will compile an output in the `.medusa/server` directory. + +You can now publish the plugin to npm using the [NPM CLI tool](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm). Run the following command to publish the plugin to npm: + +```bash +npm publish +``` + +If you haven't logged in before with your NPM account, you'll be asked to log in first. Then, your package is published publicly to be used in any Medusa application. + +### Install Public Plugin in Medusa Application + +You install a plugin that's published publicly using your package manager. For example: + +```bash npm2yarn +npm install @myorg/plugin-name +``` + +Where `@myorg/plugin-name` is the name of your plugin as published on NPM. + +Then, register the plugin in your Medusa application's configurations as explained in [this section](#register-plugin-in-medusa-application). + +*** + +## Update a Published Plugin + +To update the Medusa dependencies in a plugin, refer to [this documentation](https://docs.medusajs.com/learn/update#update-plugin-project/index.html.md). + +If you've published a plugin and you've made changes to it, you'll have to publish the update to NPM again. + +First, run the following command to change the version of the plugin: + +```bash +npm version +``` + +Where `` indicates the type of version update you’re publishing. For example, it can be `major` or `minor`. Refer to the [npm version documentation](https://docs.npmjs.com/cli/v10/commands/npm-version) for more information. + +Then, re-run the same commands for publishing a plugin: + +```bash +npx medusa plugin:build +npm publish +``` + +This will publish an updated version of your plugin under a new version. + + # Read-Only Module Link In this chapter, you’ll learn what a read-only module link is and how to define one. @@ -10668,230 +13619,48 @@ If multiple posts have their `product_id` set to a product's ID, an array of pos [Sanity Integration Tutorial](https://docs.medusajs.com/resources/integrations/guides/sanity/index.html.md). -# Query Context +# Commerce Modules -In this chapter, you'll learn how to pass contexts when retrieving data with [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). +In this chapter, you'll learn about Medusa's Commerce Modules. -## What is Query Context? +## What is a Commerce Module? -Query context is a way to pass additional information when retrieving data with Query. This data can be useful when applying custom transformations to the retrieved data based on the current context. +Commerce Modules are built-in [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md) of Medusa that provide core commerce logic specific to domains like Products, Orders, Customers, Fulfillment, and much more. -For example, consider you have a Blog Module with posts and authors. You can accept the user's language as a context and return the posts in the user's language. Another example is how Medusa uses Query Context to [retrieve product variants' prices based on the customer's currency](https://docs.medusajs.com/resources/commerce-modules/product/guides/price/index.html.md). +Medusa's Commerce Modules are used to form Medusa's default [workflows](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md) and [APIs](https://docs.medusajs.com/api/store). For example, when you call the add to cart endpoint. the add to cart workflow runs which uses the Product Module to check if the product exists, the Inventory Module to ensure the product is available in the inventory, and the Cart Module to finally add the product to the cart. + +You'll find the details and steps of the add-to-cart workflow in [this workflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/addToCartWorkflow/index.html.md) + +The core commerce logic contained in Commerce Modules is also available directly when you are building customizations. This granular access to commerce functionality is unique and expands what's possible to build with Medusa drastically. + +### List of Medusa's Commerce Modules + +Refer to [this reference](https://docs.medusajs.com/resources/commerce-modules/index.html.md) for a full list of Commerce Modules in Medusa. *** -## How to Use Query Context +## Use Commerce Modules in Custom Flows -The `query.graph` method accepts an optional `context` parameter that can be used to pass additional context either to the data model you're retrieving (for example, `post`), or its related and linked models (for example, `author`). +Similar to your [custom modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), the Medusa application registers a Commerce Module's service in the [container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). So, you can resolve it in your custom flows. This is useful as you build unique requirements extending core commerce features. -You initialize a context using `QueryContext` from the Modules SDK. It accepts an object of contexts as an argument. +For example, consider you have a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) (a special function that performs a task in a series of steps with rollback mechanism) that needs a step to retrieve the total number of products. You can create a step in the workflow that resolves the Product Module's service from the container to use its methods: -For example, to retrieve posts using Query while passing the user's language as a context: +```ts highlights={highlights} +import { createStep, StepResponse } from "@medusajs/framework/workflows-sdk" -```ts -const { data } = await query.graph({ - entity: "post", - fields: ["*"], - context: QueryContext({ - lang: "es", - }), -}) -``` +export const countProductsStep = createStep( + "count-products", + async ({ }, { container }) => { + const productModuleService = container.resolve("product") -In this example, you pass in the context a `lang` property whose value is `es`. + const [,count] = await productModuleService.listAndCountProducts() -Then, to handle the context while retrieving records of the data model, in the associated module's service you override the generated `list` method of the data model. - -For example, continuing the example above, you can override the `listPosts` method of the Blog Module's service to handle the context: - -```ts highlights={highlights2} -import { MedusaContext, MedusaService } from "@medusajs/framework/utils" -import { Context, FindConfig } from "@medusajs/framework/types" -import Post from "./models/post" -import Author from "./models/author" - -class BlogModuleService extends MedusaService({ - Post, - Author, -}){ - // @ts-ignore - async listPosts( - filters?: any, - config?: FindConfig | undefined, - @MedusaContext() sharedContext?: Context | undefined - ) { - const context = filters.context ?? {} - delete filters.context - - let posts = await super.listPosts(filters, config, sharedContext) - - if (context.lang === "es") { - posts = posts.map((post) => { - return { - ...post, - title: post.title + " en español", - } - }) - } - - return posts + return new StepResponse(count) } -} - -export default BlogModuleService +) ``` -In the above example, you override the generated `listPosts` method. This method receives as a first parameter the filters passed to the query, but it also includes a `context` property that holds the context passed to the query. - -You extract the context from `filters`, then retrieve the posts using the parent's `listPosts` method. After that, if the language is set in the context, you transform the titles of the posts. - -All posts returned will now have their titles appended with "en español". - -Learn more about the generated `list` method in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/list/index.html.md). - -### Using Pagination with Query - -If you pass pagination fields to `query.graph`, you must also override the `listAndCount` method in the service. - -For example, following along with the previous example, you must override the `listAndCountPosts` method of the Blog Module's service: - -```ts -import { MedusaContext, MedusaService } from "@medusajs/framework/utils" -import { Context, FindConfig } from "@medusajs/framework/types" -import Post from "./models/post" -import Author from "./models/author" - -class BlogModuleService extends MedusaService({ - Post, - Author, -}){ - // @ts-ignore - async listAndCountPosts( - filters?: any, - config?: FindConfig | undefined, - @MedusaContext() sharedContext?: Context | undefined - ) { - const context = filters.context ?? {} - delete filters.context - - const result = await super.listAndCountPosts( - filters, - config, - sharedContext - ) - - if (context.lang === "es") { - result.posts = posts.map((post) => { - return { - ...post, - title: post.title + " en español", - } - }) - } - - return result - } -} - -export default BlogModuleService -``` - -Now, the `listAndCountPosts` method will handle the context passed to `query.graph` when you pass pagination fields. You can also move the logic to transform the posts' titles to a separate method and call it from both `listPosts` and `listAndCountPosts`. - -*** - -## Passing Query Context to Related Data Models - -If you're retrieving a data model and you want to pass context to its associated model in the same module, you can pass them as part of `QueryContext`'s parameter, then handle them in the same `list` method. - -For linked data models, check out the [next section](#passing-query-context-to-linked-data-models). - -For example, to pass a context for the post's authors: - -```ts highlights={highlights3} -const { data } = await query.graph({ - entity: "post", - fields: ["*"], - context: QueryContext({ - lang: "es", - author: QueryContext({ - lang: "es", - }), - }), -}) -``` - -Then, in the `listPosts` method, you can handle the context for the post's authors: - -```ts highlights={highlights4} -import { MedusaContext, MedusaService } from "@medusajs/framework/utils" -import { Context, FindConfig } from "@medusajs/framework/types" -import Post from "./models/post" -import Author from "./models/author" - -class BlogModuleService extends MedusaService({ - Post, - Author, -}){ - // @ts-ignore - async listPosts( - filters?: any, - config?: FindConfig | undefined, - @MedusaContext() sharedContext?: Context | undefined - ) { - const context = filters.context ?? {} - delete filters.context - - let posts = await super.listPosts(filters, config, sharedContext) - - const isPostLangEs = context.lang === "es" - const isAuthorLangEs = context.author?.lang === "es" - - if (isPostLangEs || isAuthorLangEs) { - posts = posts.map((post) => { - return { - ...post, - title: isPostLangEs ? post.title + " en español" : post.title, - author: { - ...post.author, - name: isAuthorLangEs ? post.author.name + " en español" : post.author.name, - }, - } - }) - } - - return posts - } -} - -export default BlogModuleService -``` - -The context in `filters` will also have the context for `author`, which you can use to make transformations to the post's authors. - -*** - -## Passing Query Context to Linked Data Models - -If you're retrieving a data model and you want to pass context to a linked model in a different module, pass to the `context` property an object instead, where its keys are the linked model's name and the values are the context for that linked model. - -For example, consider the Product Module's `Product` data model is linked to the Blog Module's `Post` data model. You can pass context to the `Post` data model while retrieving products like so: - -```ts highlights={highlights5} -const { data } = await query.graph({ - entity: "product", - fields: ["*", "post.*"], - context: { - post: QueryContext({ - lang: "es", - }), - }, -}) -``` - -In this example, you retrieve products and their associated posts. You also pass a context for `post`, indicating the customer's language. - -To handle the context, you override the generated `listPosts` method of the Blog Module as explained [previously](#how-to-use-query-context). +Your workflow can use services of both custom and Commerce Modules, supporting you in building custom flows without having to re-build core commerce features. # Module Container @@ -10960,831 +13729,6 @@ export default async function helloWorldLoader({ ``` -# Create a Plugin - -In this chapter, you'll learn how to create a Medusa plugin and publish it. - -A [plugin](https://docs.medusajs.com/learn/fundamentals/plugins/index.html.md) is a package of reusable Medusa customizations that you can install in any Medusa application. By creating and publishing a plugin, you can reuse your Medusa customizations across multiple projects or share them with the community. - -Plugins are available starting from [Medusa v2.3.0](https://github.com/medusajs/medusa/releases/tag/v2.3.0). - -## 1. Create a Plugin Project - -Plugins are created in a separate Medusa project. This makes the development and publishing of the plugin easier. Later, you'll install that plugin in your Medusa application to test it out and use it. - -Medusa's `create-medusa-app` CLI tool provides the option to create a plugin project. Run the following command to create a new plugin project: - -```bash -npx create-medusa-app my-plugin --plugin -``` - -This will create a new Medusa plugin project in the `my-plugin` directory. - -### Plugin Directory Structure - -After the installation is done, the plugin structure will look like this: - -![Directory structure of a plugin project](https://res.cloudinary.com/dza7lstvk/image/upload/v1737019441/Medusa%20Book/project-dir_q4xtri.jpg) - -- `src/`: Contains the Medusa customizations. -- `src/admin`: Contains [admin extensions](https://docs.medusajs.com/learn/fundamentals/admin/index.html.md). -- `src/api`: Contains [API routes](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) and [middlewares](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). You can add store, admin, or any custom API routes. -- `src/jobs`: Contains [scheduled jobs](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md). -- `src/links`: Contains [module links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). -- `src/modules`: Contains [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). -- `src/provider`: Contains [module providers](#create-module-providers). -- `src/subscribers`: Contains [subscribers](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). -- `src/workflows`: Contains [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). You can also add [hooks](https://docs.medusajs.com/learn/fundamentals/workflows/add-workflow-hook/index.html.md) under `src/workflows/hooks`. -- `package.json`: Contains the plugin's package information, including general information and dependencies. -- `tsconfig.json`: Contains the TypeScript configuration for the plugin. - -*** - -## 2. Prepare Plugin - -### Package Name - -Before developing, testing, and publishing your plugin, make sure its name in `package.json` is correct. This is the name you'll use to install the plugin in your Medusa application. - -For example: - -```json title="package.json" -{ - "name": "@myorg/plugin-name", - // ... -} -``` - -### Package Keywords - -Medusa scrapes NPM for a list of plugins that integrate third-party services, to later showcase them on the Medusa website. If you want your plugin to appear in that listing, make sure to add the `medusa-v2` and `medusa-plugin-integration` keywords to the `keywords` field in `package.json`. - -Only plugins that integrate third-party services are listed in the Medusa integrations page. If your plugin doesn't integrate a third-party service, you can skip this step. - -```json title="package.json" -{ - "keywords": [ - "medusa-plugin-integration", - "medusa-v2" - ], - // ... -} -``` - -In addition, make sure to use one of the following keywords based on your integration type: - -|Keyword|Description|Example| -|---|---|---| -|\`medusa-plugin-analytics\`|Analytics service integration|Google Analytics| -|\`medusa-plugin-auth\`|Authentication service integration|Auth0| -|\`medusa-plugin-cms\`|CMS service integration|Contentful| -|\`medusa-plugin-notification\`|Notification service integration|Twilio SMS| -|\`medusa-plugin-payment\`|Payment service integration|PayPal| -|\`medusa-plugin-search\`|Search service integration|MeiliSearch| -|\`medusa-plugin-shipping\`|Shipping service integration|DHL| -|\`medusa-plugin-other\`|Other third-party integrations|Sentry| - -### Package Dependencies - -Your plugin project will already have the dependencies mentioned in this section. Unless you made changes to the dependencies, you can skip this section. - -In the `package.json` file you must have the Medusa dependencies as `devDependencies` and `peerDependencies`. In addition, you must have `@swc/core` as a `devDependency`, as it's used by the plugin CLI tools. - -For example, assuming `2.5.0` is the latest Medusa version: - -```json title="package.json" -{ - "devDependencies": { - "@medusajs/admin-sdk": "2.5.0", - "@medusajs/cli": "2.5.0", - "@medusajs/framework": "2.5.0", - "@medusajs/medusa": "2.5.0", - "@medusajs/test-utils": "2.5.0", - "@medusajs/ui": "4.0.4", - "@medusajs/icons": "2.5.0", - "@swc/core": "1.5.7", - }, - "peerDependencies": { - "@medusajs/admin-sdk": "2.5.0", - "@medusajs/cli": "2.5.0", - "@medusajs/framework": "2.5.0", - "@medusajs/test-utils": "2.5.0", - "@medusajs/medusa": "2.5.0", - "@medusajs/ui": "4.0.3", - "@medusajs/icons": "2.5.0", - } -} -``` - -### Package Exports - -Your plugin project will already have the exports mentioned in this section. Unless you made changes to the exports or you created your plugin before [Medusa v2.7.0](https://github.com/medusajs/medusa/releases/tag/v2.7.0), you can skip this section. - -In the `package.json` file, make sure your plugin has the following exports: - -```json title="package.json" -{ - "exports": { - "./package.json": "./package.json", - "./workflows": "./.medusa/server/src/workflows/index.js", - "./.medusa/server/src/modules/*": "./.medusa/server/src/modules/*/index.js", - "./providers/*": "./.medusa/server/src/providers/*/index.js", - "./admin": { - "import": "./.medusa/server/src/admin/index.mjs", - "require": "./.medusa/server/src/admin/index.js", - "default": "./.medusa/server/src/admin/index.js" - }, - "./*": "./.medusa/server/src/*.js" - } -} -``` - -Aside from the `./package.json`, `./providers`, and `./admin`, these exports are only a recommendation. You can cherry-pick the files and directories you want to export. - -The plugin exports the following files and directories: - -- `./package.json`: The `package.json` file. Medusa needs to access the `package.json` when registering the plugin. -- `./workflows`: The workflows exported in `./src/workflows/index.ts`. -- `./.medusa/server/src/modules/*`: The definition file of modules. This is useful if you create links to the plugin's modules in the Medusa application. -- `./providers/*`: The definition file of module providers. This is useful if your plugin includes a module provider, allowing you to register the plugin's providers in Medusa applications. Learn more in the [Create Module Providers](#create-module-providers) section. -- `./admin`: The admin extensions exported in `./src/admin/index.ts`. -- `./*`: Any other files in the plugin's `src` directory. - -*** - -## 3. Publish Plugin Locally for Development and Testing - -Medusa's CLI tool provides commands to simplify developing and testing your plugin in a local Medusa application. You start by publishing your plugin in the local package registry, then install it in your Medusa application. You can then watch for changes in the plugin as you develop it. - -### Publish and Install Local Package - -### Prerequisites - -- [Medusa application installed.](https://docs.medusajs.com/learn/installation/index.html.md) - -The first time you create your plugin, you need to publish the package into a local package registry, then install it in your Medusa application. This is a one-time only process. - -To publish the plugin to the local registry, run the following command in your plugin project: - -```bash title="Plugin project" -npx medusa plugin:publish -``` - -This command uses [Yalc](https://github.com/wclr/yalc) under the hood to publish the plugin to a local package registry. The plugin is published locally under the name you specified in `package.json`. - -Next, navigate to your Medusa application: - -```bash title="Medusa application" -cd ~/path/to/medusa-app -``` - -Make sure to replace `~/path/to/medusa-app` with the path to your Medusa application. - -Then, if your project was created before v2.3.1 of Medusa, make sure to install `yalc` as a development dependency: - -```bash npm2yarn badgeLabel="Medusa Application" badgeColor="green" -npm install --save-dev yalc -``` - -After that, run the following Medusa CLI command to install the plugin: - -```bash title="Medusa application" -npx medusa plugin:add @myorg/plugin-name -``` - -Make sure to replace `@myorg/plugin-name` with the name of your plugin as specified in `package.json`. Your plugin will be installed from the local package registry into your Medusa application. - -### Register Plugin in Medusa Application - -After installing the plugin, you need to register it in your Medusa application in the configurations defined in `medusa-config.ts`. - -Add the plugin to the `plugins` array in the `medusa-config.ts` file: - -```ts title="medusa-config.ts" highlights={pluginHighlights} -module.exports = defineConfig({ - // ... - plugins: [ - { - resolve: "@myorg/plugin-name", - options: {}, - }, - ], -}) -``` - -The `plugins` configuration is an array of objects where each object has a `resolve` key whose value is the name of the plugin package. - -#### Pass Module Options through Plugin - -Each plugin configuration also accepts an `options` property, whose value is an object of options to pass to the plugin's modules. - -For example: - -```ts title="medusa-config.ts" highlights={pluginOptionsHighlight} -module.exports = defineConfig({ - // ... - plugins: [ - { - resolve: "@myorg/plugin-name", - options: { - apiKey: true, - }, - }, - ], -}) -``` - -The `options` property in the plugin configuration is passed to all modules in the plugin. Learn more about module options in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/options/index.html.md). - -### Watch Plugin Changes During Development - -While developing your plugin, you can watch for changes in the plugin and automatically update the plugin in the Medusa application using it. This is the only command you'll continuously need during your plugin development. - -To do that, run the following command in your plugin project: - -```bash title="Plugin project" -npx medusa plugin:develop -``` - -This command will: - -- Watch for changes in the plugin. Whenever a file is changed, the plugin is automatically built. -- Publish the plugin changes to the local package registry. This will automatically update the plugin in the Medusa application using it. You can also benefit from real-time HMR updates of admin extensions. - -### Start Medusa Application - -You can start your Medusa application's development server to test out your plugin: - -```bash npm2yarn badgeLabel="Medusa Application" badgeColor="green" -npm run dev -``` - -While your Medusa application is running and the plugin is being watched, you can test your plugin while developing it in the Medusa application. - -*** - -## 4. Create Customizations in the Plugin - -You can now build your plugin's customizations. The following guide explains how to build different customizations in your plugin. - -- [Create a module](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md) -- [Create a module link](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) -- [Create a workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) -- [Add a workflow hook](https://docs.medusajs.com/learn/fundamentals/workflows/add-workflow-hook/index.html.md) -- [Create an API route](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md) -- [Add a subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md) -- [Add a scheduled job](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md) -- [Add an admin widget](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md) -- [Add an admin UI route](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md) - -While building those customizations, you can test them in your Medusa application by [watching the plugin changes](#watch-plugin-changes-during-development) and [starting the Medusa application](#start-medusa-application). - -### Generating Migrations for Modules - -During your development, you may need to generate migrations for modules in your plugin. To do that, first, add the following environment variables in your plugin project: - -```plain title="Plugin project" -DB_USERNAME=postgres -DB_PASSWORD=123... -DB_HOST=localhost -DB_PORT=5432 -DB_NAME=db_name -``` - -You can add these environment variables in a `.env` file in your plugin project. The variables are: - -- `DB_USERNAME`: The username of the PostgreSQL user to connect to the database. -- `DB_PASSWORD`: The password of the PostgreSQL user to connect to the database. -- `DB_HOST`: The host of the PostgreSQL database. Typically, it's `localhost` if you're running the database locally. -- `DB_PORT`: The port of the PostgreSQL database. Typically, it's `5432` if you're running the database locally. -- `DB_NAME`: The name of the PostgreSQL database to connect to. - -Then, run the following command in your plugin project to generate migrations for the modules in your plugin: - -```bash title="Plugin project" -npx medusa plugin:db:generate -``` - -This command generates migrations for all modules in the plugin. - -Finally, run these migrations on the Medusa application that the plugin is installed in using the `db:migrate` command: - -```bash title="Medusa application" -npx medusa db:migrate -``` - -The migrations in your application, including your plugin, will run and update the database. - -### Importing Module Resources - -In the [Prepare Plugin](#2-prepare-plugin) section, you learned about [exported resources](#package-exports) in your plugin. - -These exports allow you to import your plugin resources in your Medusa application, including workflows, links and modules. - -For example, to import the plugin's workflow in your Medusa application: - -`@myorg/plugin-name` is the plugin package's name. - -```ts -import { Workflow1, Workflow2 } from "@myorg/plugin-name/workflows" -import BlogModule from "@myorg/plugin-name/modules/blog" -// import other files created in plugin like ./src/types/blog.ts -import BlogType from "@myorg/plugin-name/types/blog" -``` - -### Create Module Providers - -The [exported resources](#package-exports) also allow you to import module providers in your plugin and register them in the Medusa application's configuration. A module provider is a module that provides the underlying logic or integration related to a commerce or Infrastructure Module. - -For example, assuming your plugin has a [Notification Module Provider](https://docs.medusajs.com/resources/infrastructure-modules/notification/index.html.md) called `my-notification`, you can register it in your Medusa application's configuration like this: - -`@myorg/plugin-name` is the plugin package's name. - -```ts highlights={[["9"]]} title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/notification", - options: { - providers: [ - { - resolve: "@myorg/plugin-name/providers/my-notification", - id: "my-notification", - options: { - channels: ["email"], - // provider options... - }, - }, - ], - }, - }, - ], -}) -``` - -You pass to `resolve` the path to the provider relative to the plugin package. So, in this example, the `my-notification` provider is located in `./src/providers/my-notification/index.ts` of the plugin. - -To learn how to create module providers, refer to the following guides: - -- [File Module Provider](https://docs.medusajs.com/resources/references/file-provider-module/index.html.md) -- [Notification Module Provider](https://docs.medusajs.com/resources/references/notification-provider-module/index.html.md) -- [Auth Module Provider](https://docs.medusajs.com/resources/references/auth/provider/index.html.md) -- [Payment Module Provider](https://docs.medusajs.com/resources/references/payment/provider/index.html.md) -- [Fulfillment Module Provider](https://docs.medusajs.com/resources/references/fulfillment/provider/index.html.md) -- [Tax Module Provider](https://docs.medusajs.com/resources/references/tax/provider/index.html.md) - -*** - -## 5. Publish Plugin to NPM - -Make sure to add the keywords mentioned in the [Package Keywords](#package-keywords) section in your plugin's `package.json` file. - -Medusa's CLI tool provides a command that bundles your plugin to be published to npm. Once you're ready to publish your plugin publicly, run the following command in your plugin project: - -```bash -npx medusa plugin:build -``` - -The command will compile an output in the `.medusa/server` directory. - -You can now publish the plugin to npm using the [NPM CLI tool](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm). Run the following command to publish the plugin to npm: - -```bash -npm publish -``` - -If you haven't logged in before with your NPM account, you'll be asked to log in first. Then, your package is published publicly to be used in any Medusa application. - -### Install Public Plugin in Medusa Application - -You install a plugin that's published publicly using your package manager. For example: - -```bash npm2yarn -npm install @myorg/plugin-name -``` - -Where `@myorg/plugin-name` is the name of your plugin as published on NPM. - -Then, register the plugin in your Medusa application's configurations as explained in [this section](#register-plugin-in-medusa-application). - -*** - -## Update a Published Plugin - -To update the Medusa dependencies in a plugin, refer to [this documentation](https://docs.medusajs.com/learn/update#update-plugin-project/index.html.md). - -If you've published a plugin and you've made changes to it, you'll have to publish the update to NPM again. - -First, run the following command to change the version of the plugin: - -```bash -npm version -``` - -Where `` indicates the type of version update you’re publishing. For example, it can be `major` or `minor`. Refer to the [npm version documentation](https://docs.npmjs.com/cli/v10/commands/npm-version) for more information. - -Then, re-run the same commands for publishing a plugin: - -```bash -npx medusa plugin:build -npm publish -``` - -This will publish an updated version of your plugin under a new version. - - -# Commerce Modules - -In this chapter, you'll learn about Medusa's Commerce Modules. - -## What is a Commerce Module? - -Commerce Modules are built-in [modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md) of Medusa that provide core commerce logic specific to domains like Products, Orders, Customers, Fulfillment, and much more. - -Medusa's Commerce Modules are used to form Medusa's default [workflows](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md) and [APIs](https://docs.medusajs.com/api/store). For example, when you call the add to cart endpoint. the add to cart workflow runs which uses the Product Module to check if the product exists, the Inventory Module to ensure the product is available in the inventory, and the Cart Module to finally add the product to the cart. - -You'll find the details and steps of the add-to-cart workflow in [this workflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/addToCartWorkflow/index.html.md) - -The core commerce logic contained in Commerce Modules is also available directly when you are building customizations. This granular access to commerce functionality is unique and expands what's possible to build with Medusa drastically. - -### List of Medusa's Commerce Modules - -Refer to [this reference](https://docs.medusajs.com/resources/commerce-modules/index.html.md) for a full list of Commerce Modules in Medusa. - -*** - -## Use Commerce Modules in Custom Flows - -Similar to your [custom modules](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md), the Medusa application registers a Commerce Module's service in the [container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md). So, you can resolve it in your custom flows. This is useful as you build unique requirements extending core commerce features. - -For example, consider you have a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) (a special function that performs a task in a series of steps with rollback mechanism) that needs a step to retrieve the total number of products. You can create a step in the workflow that resolves the Product Module's service from the container to use its methods: - -```ts highlights={highlights} -import { createStep, StepResponse } from "@medusajs/framework/workflows-sdk" - -export const countProductsStep = createStep( - "count-products", - async ({ }, { container }) => { - const productModuleService = container.resolve("product") - - const [,count] = await productModuleService.listAndCountProducts() - - return new StepResponse(count) - } -) -``` - -Your workflow can use services of both custom and Commerce Modules, supporting you in building custom flows without having to re-build core commerce features. - - -# Module Link Direction - -In this chapter, you'll learn about the difference in module link directions, and which to use based on your use case. - -The details in this chapter don't apply to [Read-Only Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/read-only/index.html.md). Refer to the [Read-Only Module Links chapter](https://docs.medusajs.com/learn/fundamentals/module-links/read-only/index.html.md) for more information on read-only links and their direction. - -## Link Direction - -The module link's direction depends on the order you pass the data model configuration parameters to `defineLink`. - -For example, the following defines a link from the Blog Module's `post` data model to the Product Module's `product` data model: - -```ts -export default defineLink( - BlogModule.linkable.post, - ProductModule.linkable.product -) -``` - -Whereas the following defines a link from the Product Module's `product` data model to the Blog Module's `post` data model: - -```ts -export default defineLink( - ProductModule.linkable.product, - BlogModule.linkable.post -) -``` - -The above links are two different links that serve different purposes. - -*** - -## Which Link Direction to Use? - -### Extend Data Models - -If you're adding a link to a data model to extend it and add new fields, define the link from the main data model to the custom data model. - -For example, consider you want to add a `subtitle` custom field to the `product` data model. To do that, you define a `Subtitle` data model in your module, then define a link from the `Product` data model to it: - -```ts -export default defineLink( - ProductModule.linkable.product, - BlogModule.linkable.subtitle -) -``` - -### Associate Data Models - -If you're linking data models to indicate an association between them, define the link from the custom data model to the main data model. - -For example, consider you have `Post` data model representing a blog post, and you want to associate a blog post with a product. To do that, define a link from the `Post` data model to `Product`: - -```ts -export default defineLink( - BlogModule.linkable.post, - ProductModule.linkable.product -) -``` - - -# Infrastructure Modules - -In this chapter, you’ll learn about Infrastructure Modules. - -## What is an Infrastructure Module? - -An Infrastructure Module implements features and mechanisms related to the Medusa application’s architecture and infrastructure. - -Since modules are interchangeable, you have more control over Medusa’s architecture. For example, you can choose to use Memcached for event handling instead of Redis. - -*** - -## Infrastructure Module Types - -There are different Infrastructure Module types including: - -![Diagram illustrating how the modules connect to third-party services](https://res.cloudinary.com/dza7lstvk/image/upload/v1727095814/Medusa%20Book/architectural-modules_bj9bb9.jpg) - -- Analytics Module: Integrates a third-party service to track and analyze user interactions and system events. -- Cache Module: Defines the caching mechanism or logic to cache computational results. -- Event Module: Integrates a pub/sub service to handle subscribing to and emitting events. -- Workflow Engine Module: Integrates a service to store and track workflow executions and steps. -- File Module: Integrates a storage service to handle uploading and managing files. -- Notification Module: Integrates a third-party service or defines custom logic to send notifications to users and customers. -- Locking Module: Integrates a service that manages access to shared resources by multiple processes or threads. - -*** - -## Infrastructure Modules List - -Refer to the [Infrastructure Modules reference](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) for a list of Medusa’s Infrastructure Modules, available modules to install, and how to create an Infrastructure Module. - - -# Module Isolation - -In this chapter, you'll learn how modules are isolated, and what that means for your custom development. - -- Modules can't access resources, such as services or data models, from other modules. -- Use [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) to extend an existing module's data models, and [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve data across modules. -- Use [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) to build features that depend on functionalities from different modules. - -## How are Modules Isolated? - -A module is unaware of any resources other than its own, such as services or data models. This means it can't access these resources if they're implemented in another module. - -For example, your custom module can't resolve the Product Module's main service or have direct relationships from its data model to the Product Module's data models. - -A module has its own container, as explained in the [Module Container](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md) chapter. This container includes the module's resources, such as services and data models, and some Framework resources that the Medusa application provides. - -Refer to the [Module Container Resources](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) for a list of resources registered in a module's container. - -*** - -## Why are Modules Isolated - -Some of the module isolation's benefits include: - -- Integrate your module into any Medusa application without side-effects to your setup. -- Replace existing modules with your custom implementation if your use case is drastically different. -- Use modules in other environments, such as Edge functions and Next.js apps. - -*** - -## How to Extend Data Model of Another Module? - -To extend the data model of another module, such as the `Product` data model of the Product Module, use [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). Module Links allow you to build associations between data models of different modules without breaking the module isolation. - -Then, you can retrieve data across modules using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). - -*** - -## How to Use Services of Other Modules? - -You'll often build feature that uses functionalities from different modules. For example, if you may need to retrieve brands, then sync them to a third-party service. - -To build functionalities spanning across modules and systems, create a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) whose steps resolve the modules' services to perform these functionalities. - -Workflows ensure data consistency through their roll-back mechanism and tracking of each execution's status, steps, input, and output. - -### Example - -For example, consider you have two modules: - -1. A module that stores and manages brands in your application. -2. A module that integrates a third-party Content Management System (CMS). - -To sync brands from your application to the third-party system, create the following steps: - -```ts title="Example Steps" highlights={stepsHighlights} -const retrieveBrandsStep = createStep( - "retrieve-brands", - async (_, { container }) => { - const brandModuleService = container.resolve( - "brand" - ) - - const brands = await brandModuleService.listBrands() - - return new StepResponse(brands) - } -) - -const createBrandsInCmsStep = createStep( - "create-brands-in-cms", - async ({ brands }, { container }) => { - const cmsModuleService = container.resolve( - "cms" - ) - - const cmsBrands = await cmsModuleService.createBrands(brands) - - return new StepResponse(cmsBrands, cmsBrands) - }, - async (brands, { container }) => { - const cmsModuleService = container.resolve( - "cms" - ) - - await cmsModuleService.deleteBrands( - brands.map((brand) => brand.id) - ) - } -) -``` - -The `retrieveBrandsStep` retrieves the brands from a Brand Module, and the `createBrandsInCmsStep` creates the brands in a third-party system using a CMS Module. - -Then, create the following workflow that uses these steps: - -```ts title="Example Workflow" -export const syncBrandsWorkflow = createWorkflow( - "sync-brands", - () => { - const brands = retrieveBrandsStep() - - createBrandsInCmsStep({ brands }) - } -) -``` - -You can then use this workflow in an API route, scheduled job, or other resources that use this functionality. - -*** - -## How to Use Framework APIs and Tools in Module? - -### Framework Tools in Module Container - -A module has in its container some Framework APIs and tools, such as [Logger](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md). You can refer to the [Module Container Resources](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) for a list of resources registered in a module's container. - -You can resolve those resources in the module's services and loaders. - -For example: - -```ts title="Example Service" -import { Logger } from "@medusajs/framework/types" - -type InjectedDependencies = { - logger: Logger -} - -export default class BlogModuleService { - protected logger_: Logger - - constructor({ logger }: InjectedDependencies) { - this.logger_ = logger - - this.logger_.info("[BlogModuleService]: Hello World!") - } - - // ... -} -``` - -In this example, the `BlogModuleService` class resolves the `Logger` service from the module's container and uses it to log a message. - -### Using Framework Tools in Workflows - -Some Framework APIs and tools are not registered in the module's container. For example, [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) is only registered in the Medusa container. - -You should, instead, build workflows that use these APIs and tools along with your module's service. - -For example, you can create a workflow that retrieves data using Query, then pass the data to your module's service to perform some action. - -```ts title="Example Workflow" -import { createWorkflow, createStep } from "@medusajs/framework/workflows-sdk" -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -const createBrandsInCmsStep = createStep( - "create-brands-in-cms", - async ({ brands }, { container }) => { - const cmsModuleService = container.resolve( - "cms" - ) - - const cmsBrands = await cmsModuleService.createBrands(brands) - - return new StepResponse(cmsBrands, cmsBrands) - }, - async (brands, { container }) => { - const cmsModuleService = container.resolve( - "cms" - ) - - await cmsModuleService.deleteBrands( - brands.map((brand) => brand.id) - ) - } -) - -const syncBrandsWorkflow = createWorkflow( - "sync-brands", - () => { - const { data: brands } = useQueryGraphStep({ - entity: "brand", - fields: [ - "*", - "products.*", - ], - }) - - createBrandsInCmsStep({ brands }) - } -) -``` - -In this example, you use the `useQueryGraphStep` to retrieve brands with their products, then pass the brands to the `createBrandsInCmsStep` step. - -In the `createBrandsInCmsStep`, you resolve the CMS Module's service from the module's container and use it to create the brands in the third-party system. You pass the brands you retrieved using Query to the module's service. - -### Injecting Dependencies to Module - -Some cases still require you to access external resources, mainly [Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) or Framework tools, in your module. -For example, you may need the [Event Module](https://docs.medusajs.com/resources/infrastructure-modules/event/index.html.md) to emit events from your module's service. - -In those cases, you can inject the dependencies to your module's service in `medusa-config.ts` using the `dependencies` property of the module's configuration. - -Use this approach only when absolutely necessary, where workflows aren't sufficient for your use case. By injecting dependencies, you risk breaking your module if the dependency isn't provided, or if the dependency's API changes. - -For example: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "./src/modules/blog", - dependencies: [ - Modules.EVENT_BUS, - ], - }, - ], -}) -``` - -In this example, you inject the Event Module's service to your module's container. - -Only the main service will be injected into the module's container. - -You can then use the Event Module's service in your module's service: - -```ts title="Example Service" -class BlogModuleService { - protected eventBusService_: AbstractEventBusModuleService - - constructor({ event_bus }) { - this.eventBusService_ = event_bus - } - - performAction() { - // TODO perform action - - this.eventBusService_.emit({ - name: "custom.event", - data: { - id: "123", - // other data payload - }, - }) - } -} -``` - - # Perform Database Operations in a Service In this chapter, you'll learn how to perform database operations in a module's service. @@ -12392,6 +14336,292 @@ class BlogModuleService { ``` +# Infrastructure Modules + +In this chapter, you’ll learn about Infrastructure Modules. + +## What is an Infrastructure Module? + +An Infrastructure Module implements features and mechanisms related to the Medusa application’s architecture and infrastructure. + +Since modules are interchangeable, you have more control over Medusa’s architecture. For example, you can choose to use Memcached for event handling instead of Redis. + +*** + +## Infrastructure Module Types + +There are different Infrastructure Module types including: + +![Diagram illustrating how the modules connect to third-party services](https://res.cloudinary.com/dza7lstvk/image/upload/v1727095814/Medusa%20Book/architectural-modules_bj9bb9.jpg) + +- Analytics Module: Integrates a third-party service to track and analyze user interactions and system events. +- Cache Module: Defines the caching mechanism or logic to cache computational results. +- Event Module: Integrates a pub/sub service to handle subscribing to and emitting events. +- Workflow Engine Module: Integrates a service to store and track workflow executions and steps. +- File Module: Integrates a storage service to handle uploading and managing files. +- Notification Module: Integrates a third-party service or defines custom logic to send notifications to users and customers. +- Locking Module: Integrates a service that manages access to shared resources by multiple processes or threads. + +*** + +## Infrastructure Modules List + +Refer to the [Infrastructure Modules reference](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) for a list of Medusa’s Infrastructure Modules, available modules to install, and how to create an Infrastructure Module. + + +# Module Isolation + +In this chapter, you'll learn how modules are isolated, and what that means for your custom development. + +- Modules can't access resources, such as services or data models, from other modules. +- Use [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md) to extend an existing module's data models, and [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) to retrieve data across modules. +- Use [workflows](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) to build features that depend on functionalities from different modules. + +## How are Modules Isolated? + +A module is unaware of any resources other than its own, such as services or data models. This means it can't access these resources if they're implemented in another module. + +For example, your custom module can't resolve the Product Module's main service or have direct relationships from its data model to the Product Module's data models. + +A module has its own container, as explained in the [Module Container](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md) chapter. This container includes the module's resources, such as services and data models, and some Framework resources that the Medusa application provides. + +Refer to the [Module Container Resources](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) for a list of resources registered in a module's container. + +*** + +## Why are Modules Isolated + +Some of the module isolation's benefits include: + +- Integrate your module into any Medusa application without side-effects to your setup. +- Replace existing modules with your custom implementation if your use case is drastically different. +- Use modules in other environments, such as Edge functions and Next.js apps. + +*** + +## How to Extend Data Model of Another Module? + +To extend the data model of another module, such as the `Product` data model of the Product Module, use [Module Links](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). Module Links allow you to build associations between data models of different modules without breaking the module isolation. + +Then, you can retrieve data across modules using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). + +*** + +## How to Use Services of Other Modules? + +You'll often build feature that uses functionalities from different modules. For example, if you may need to retrieve brands, then sync them to a third-party service. + +To build functionalities spanning across modules and systems, create a [workflow](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md) whose steps resolve the modules' services to perform these functionalities. + +Workflows ensure data consistency through their roll-back mechanism and tracking of each execution's status, steps, input, and output. + +### Example + +For example, consider you have two modules: + +1. A module that stores and manages brands in your application. +2. A module that integrates a third-party Content Management System (CMS). + +To sync brands from your application to the third-party system, create the following steps: + +```ts title="Example Steps" highlights={stepsHighlights} +const retrieveBrandsStep = createStep( + "retrieve-brands", + async (_, { container }) => { + const brandModuleService = container.resolve( + "brand" + ) + + const brands = await brandModuleService.listBrands() + + return new StepResponse(brands) + } +) + +const createBrandsInCmsStep = createStep( + "create-brands-in-cms", + async ({ brands }, { container }) => { + const cmsModuleService = container.resolve( + "cms" + ) + + const cmsBrands = await cmsModuleService.createBrands(brands) + + return new StepResponse(cmsBrands, cmsBrands) + }, + async (brands, { container }) => { + const cmsModuleService = container.resolve( + "cms" + ) + + await cmsModuleService.deleteBrands( + brands.map((brand) => brand.id) + ) + } +) +``` + +The `retrieveBrandsStep` retrieves the brands from a Brand Module, and the `createBrandsInCmsStep` creates the brands in a third-party system using a CMS Module. + +Then, create the following workflow that uses these steps: + +```ts title="Example Workflow" +export const syncBrandsWorkflow = createWorkflow( + "sync-brands", + () => { + const brands = retrieveBrandsStep() + + createBrandsInCmsStep({ brands }) + } +) +``` + +You can then use this workflow in an API route, scheduled job, or other resources that use this functionality. + +*** + +## How to Use Framework APIs and Tools in Module? + +### Framework Tools in Module Container + +A module has in its container some Framework APIs and tools, such as [Logger](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md). You can refer to the [Module Container Resources](https://docs.medusajs.com/resources/medusa-container-resources/index.html.md) for a list of resources registered in a module's container. + +You can resolve those resources in the module's services and loaders. + +For example: + +```ts title="Example Service" +import { Logger } from "@medusajs/framework/types" + +type InjectedDependencies = { + logger: Logger +} + +export default class BlogModuleService { + protected logger_: Logger + + constructor({ logger }: InjectedDependencies) { + this.logger_ = logger + + this.logger_.info("[BlogModuleService]: Hello World!") + } + + // ... +} +``` + +In this example, the `BlogModuleService` class resolves the `Logger` service from the module's container and uses it to log a message. + +### Using Framework Tools in Workflows + +Some Framework APIs and tools are not registered in the module's container. For example, [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md) is only registered in the Medusa container. + +You should, instead, build workflows that use these APIs and tools along with your module's service. + +For example, you can create a workflow that retrieves data using Query, then pass the data to your module's service to perform some action. + +```ts title="Example Workflow" +import { createWorkflow, createStep } from "@medusajs/framework/workflows-sdk" +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +const createBrandsInCmsStep = createStep( + "create-brands-in-cms", + async ({ brands }, { container }) => { + const cmsModuleService = container.resolve( + "cms" + ) + + const cmsBrands = await cmsModuleService.createBrands(brands) + + return new StepResponse(cmsBrands, cmsBrands) + }, + async (brands, { container }) => { + const cmsModuleService = container.resolve( + "cms" + ) + + await cmsModuleService.deleteBrands( + brands.map((brand) => brand.id) + ) + } +) + +const syncBrandsWorkflow = createWorkflow( + "sync-brands", + () => { + const { data: brands } = useQueryGraphStep({ + entity: "brand", + fields: [ + "*", + "products.*", + ], + }) + + createBrandsInCmsStep({ brands }) + } +) +``` + +In this example, you use the `useQueryGraphStep` to retrieve brands with their products, then pass the brands to the `createBrandsInCmsStep` step. + +In the `createBrandsInCmsStep`, you resolve the CMS Module's service from the module's container and use it to create the brands in the third-party system. You pass the brands you retrieved using Query to the module's service. + +### Injecting Dependencies to Module + +Some cases still require you to access external resources, mainly [Infrastructure Modules](https://docs.medusajs.com/resources/infrastructure-modules/index.html.md) or Framework tools, in your module. +For example, you may need the [Event Module](https://docs.medusajs.com/resources/infrastructure-modules/event/index.html.md) to emit events from your module's service. + +In those cases, you can inject the dependencies to your module's service in `medusa-config.ts` using the `dependencies` property of the module's configuration. + +Use this approach only when absolutely necessary, where workflows aren't sufficient for your use case. By injecting dependencies, you risk breaking your module if the dependency isn't provided, or if the dependency's API changes. + +For example: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "./src/modules/blog", + dependencies: [ + Modules.EVENT_BUS, + ], + }, + ], +}) +``` + +In this example, you inject the Event Module's service to your module's container. + +Only the main service will be injected into the module's container. + +You can then use the Event Module's service in your module's service: + +```ts title="Example Service" +class BlogModuleService { + protected eventBusService_: AbstractEventBusModuleService + + constructor({ event_bus }) { + this.eventBusService_ = event_bus + } + + performAction() { + // TODO perform action + + this.eventBusService_.emit({ + name: "custom.event", + data: { + id: "123", + // other data payload + }, + }) + } +} +``` + + # Modules Directory Structure In this document, you'll learn about the expected files and directories in your module. @@ -12419,6 +14649,337 @@ The following directories are optional and their content are explained more in t - `loaders`: Holds the scripts to run on the Medusa application's start-up. +# Multiple Services in a Module + +In this chapter, you'll learn how to use multiple services in a module. + +## Module's Main and Internal Services + +A module has one main service only, which is the service exported in the module's definition. + +However, you may use other services in your module to better organize your code or split functionalities. These are called internal services that can be resolved within your module, but not in external resources. + +*** + +## How to Add an Internal Service + +### 1. Create Service + +To add an internal service, create it in the `services` directory of your module. + +For example, create the file `src/modules/blog/services/client.ts` with the following content: + +```ts title="src/modules/blog/services/client.ts" +export class ClientService { + async getMessage(): Promise { + return "Hello, World!" + } +} +``` + +### 2. Export Service in Index + +Next, create an `index.ts` file under the `services` directory of the module that exports your internal services. + +For example, create the file `src/modules/blog/services/index.ts` with the following content: + +```ts title="src/modules/blog/services/index.ts" +export * from "./client" +``` + +This exports the `ClientService`. + +### 3. Resolve Internal Service + +Internal services exported in the `services/index.ts` file of your module are now registered in the container and can be resolved in other services in the module as well as loaders. + +For example, in your main service: + +```ts title="src/modules/blog/service.ts" highlights={[["5"], ["13"]]} +// other imports... +import { ClientService } from "./services" + +type InjectedDependencies = { + clientService: ClientService +} + +class BlogModuleService extends MedusaService({ + Post, +}){ + protected clientService_: ClientService + + constructor({ clientService }: InjectedDependencies) { + super(...arguments) + this.clientService_ = clientService + } +} +``` + +You can now use your internal service in your main service. + +*** + +## Resolve Resources in Internal Service + +Resolve dependencies from your module's container in the constructor of your internal service. + +For example: + +```ts +import { Logger } from "@medusajs/framework/types" + +type InjectedDependencies = { + logger: Logger +} + +export class ClientService { + protected logger_: Logger + + constructor({ logger }: InjectedDependencies) { + this.logger_ = logger + } +} +``` + +*** + +## Access Module Options + +Your internal service can't access the module's options. + +To retrieve the module's options, use the `configModule` registered in the module's container, which is the configurations in `medusa-config.ts`. + +For example: + +```ts +import { ConfigModule } from "@medusajs/framework/types" +import { BLOG_MODULE } from ".." + +export type InjectedDependencies = { + configModule: ConfigModule +} + +export class ClientService { + protected options: Record + + constructor({ configModule }: InjectedDependencies) { + const moduleDef = configModule.modules[BLOG_MODULE] + + if (typeof moduleDef !== "boolean") { + this.options = moduleDef.options + } + } +} +``` + +The `configModule` has a `modules` property that includes all registered modules. Retrieve the module's configuration using its registration key. + +If its value is not a `boolean`, set the service's options to the module configuration's `options` property. + + +# Module Options + +In this chapter, you’ll learn about passing options to your module from the Medusa application’s configurations and using them in the module’s resources. + +## What are Module Options? + +A module can receive options to customize or configure its functionality. For example, if you’re creating a module that integrates a third-party service, you’ll want to receive the integration credentials in the options rather than adding them directly in your code. + +*** + +## How to Pass Options to a Module? + +To pass options to a module, add an `options` property to the module’s configuration in `medusa-config.ts`. + +For example: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "./src/modules/blog", + options: { + capitalize: true, + }, + }, + ], +}) +``` + +The `options` property’s value is an object. You can pass any properties you want. + +### Pass Options to a Module in a Plugin + +If your module is part of a plugin, you can pass options to the module in the plugin’s configuration. + +For example: + +```ts title="medusa-config.ts" +import { defineConfig } from "@medusajs/framework/utils" +module.exports = defineConfig({ + plugins: [ + { + resolve: "@myorg/plugin-name", + options: { + capitalize: true, + }, + }, + ], +}) +``` + +The `options` property in the plugin configuration is passed to all modules in a plugin. + +*** + +## Access Module Options in Main Service + +The module’s main service receives the module options as a second parameter. + +For example: + +```ts title="src/modules/blog/service.ts" highlights={[["12"], ["14", "options?: ModuleOptions"], ["17"], ["18"], ["19"]]} +import { MedusaService } from "@medusajs/framework/utils" +import Post from "./models/post" + +// recommended to define type in another file +type ModuleOptions = { + capitalize?: boolean +} + +export default class BlogModuleService extends MedusaService({ + Post, +}){ + protected options_: ModuleOptions + + constructor({}, options?: ModuleOptions) { + super(...arguments) + + this.options_ = options || { + capitalize: false, + } + } + + // ... +} +``` + +*** + +## Access Module Options in Loader + +The object that a module’s loaders receive as a parameter has an `options` property holding the module's options. + +For example: + +```ts title="src/modules/blog/loaders/hello-world.ts" highlights={[["11"], ["12", "ModuleOptions", "The type of expected module options."], ["16"]]} +import { + LoaderOptions, +} from "@medusajs/framework/types" + +// recommended to define type in another file +type ModuleOptions = { + capitalize?: boolean +} + +export default async function helloWorldLoader({ + options, +}: LoaderOptions) { + + console.log( + "[BLOG MODULE] Just started the Medusa application!", + options + ) +} +``` + +*** + +## Validate Module Options + +If you expect a certain option and want to throw an error if it's not provided or isn't valid, it's recommended to perform the validation in a loader. The module's service is only instantiated when it's used, whereas the loader runs the when the Medusa application starts. + +So, by performing the validation in the loader, you ensure you can throw an error at an early point, rather than when the module is used. + +For example, to validate that the Hello Module received an `apiKey` option, create the loader `src/modules/loaders/validate.ts`: + +```ts title="src/modules/blog/loaders/validate.ts" +import { LoaderOptions } from "@medusajs/framework/types" +import { MedusaError } from "@medusajs/framework/utils" + +// recommended to define type in another file +type ModuleOptions = { + apiKey?: string +} + +export default async function validationLoader({ + options, +}: LoaderOptions) { + if (!options.apiKey) { + throw new MedusaError( + MedusaError.Types.INVALID_DATA, + "Hello Module requires an apiKey option." + ) + } +} +``` + +Then, export the loader in the module's definition file, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/loaders/index.html.md): + +```ts title="src/modules/blog/index.ts" +// other imports... +import validationLoader from "./loaders/validate" + +export const BLOG_MODULE = "blog" + +export default Module(BLOG_MODULE, { + // ... + loaders: [validationLoader], +}) +``` + +Now, when the Medusa application starts, the loader will run, validating the module's options and throwing an error if the `apiKey` option is missing. + + +# Service Constraints + +This chapter lists constraints to keep in mind when creating a service. + +## Use Async Methods + +Medusa wraps service method executions to inject useful context or transactions. However, since Medusa can't detect whether the method is asynchronous, it always executes methods in the wrapper with the `await` keyword. + +For example, if you have a synchronous `getMessage` method, and you use it in other resources like workflows, Medusa executes it as an async method: + +```ts +await blogModuleService.getMessage() +``` + +So, make sure your service's methods are always async to avoid unexpected errors or behavior. + +```ts highlights={[["8", "", "Method must be async."], ["13", "async", "Correct way of defining the method."]]} +import { MedusaService } from "@medusajs/framework/utils" +import Post from "./models/post" + +class BlogModuleService extends MedusaService({ + Post, +}){ + // Don't + getMessage(): string { + return "Hello, World!" + } + + // Do + async getMessage(): Promise { + return "Hello, World!" + } +} + +export default BlogModuleService +``` + + # Loaders In this chapter, you’ll learn about loaders and how to use them. @@ -12678,134 +15239,6 @@ info: Connected to MongoDB You can now resolve the MongoDB Module's main service in your customizations to perform operations on the MongoDB database. -# Multiple Services in a Module - -In this chapter, you'll learn how to use multiple services in a module. - -## Module's Main and Internal Services - -A module has one main service only, which is the service exported in the module's definition. - -However, you may use other services in your module to better organize your code or split functionalities. These are called internal services that can be resolved within your module, but not in external resources. - -*** - -## How to Add an Internal Service - -### 1. Create Service - -To add an internal service, create it in the `services` directory of your module. - -For example, create the file `src/modules/blog/services/client.ts` with the following content: - -```ts title="src/modules/blog/services/client.ts" -export class ClientService { - async getMessage(): Promise { - return "Hello, World!" - } -} -``` - -### 2. Export Service in Index - -Next, create an `index.ts` file under the `services` directory of the module that exports your internal services. - -For example, create the file `src/modules/blog/services/index.ts` with the following content: - -```ts title="src/modules/blog/services/index.ts" -export * from "./client" -``` - -This exports the `ClientService`. - -### 3. Resolve Internal Service - -Internal services exported in the `services/index.ts` file of your module are now registered in the container and can be resolved in other services in the module as well as loaders. - -For example, in your main service: - -```ts title="src/modules/blog/service.ts" highlights={[["5"], ["13"]]} -// other imports... -import { ClientService } from "./services" - -type InjectedDependencies = { - clientService: ClientService -} - -class BlogModuleService extends MedusaService({ - Post, -}){ - protected clientService_: ClientService - - constructor({ clientService }: InjectedDependencies) { - super(...arguments) - this.clientService_ = clientService - } -} -``` - -You can now use your internal service in your main service. - -*** - -## Resolve Resources in Internal Service - -Resolve dependencies from your module's container in the constructor of your internal service. - -For example: - -```ts -import { Logger } from "@medusajs/framework/types" - -type InjectedDependencies = { - logger: Logger -} - -export class ClientService { - protected logger_: Logger - - constructor({ logger }: InjectedDependencies) { - this.logger_ = logger - } -} -``` - -*** - -## Access Module Options - -Your internal service can't access the module's options. - -To retrieve the module's options, use the `configModule` registered in the module's container, which is the configurations in `medusa-config.ts`. - -For example: - -```ts -import { ConfigModule } from "@medusajs/framework/types" -import { BLOG_MODULE } from ".." - -export type InjectedDependencies = { - configModule: ConfigModule -} - -export class ClientService { - protected options: Record - - constructor({ configModule }: InjectedDependencies) { - const moduleDef = configModule.modules[BLOG_MODULE] - - if (typeof moduleDef !== "boolean") { - this.options = moduleDef.options - } - } -} -``` - -The `configModule` has a `modules` property that includes all registered modules. Retrieve the module's configuration using its registration key. - -If its value is not a `boolean`, set the service's options to the module configuration's `options` property. - - # Service Factory In this chapter, you’ll learn about what the service factory is and how to use it. @@ -12981,4757 +15414,6 @@ export default BlogModuleService ``` -# Module Options - -In this chapter, you’ll learn about passing options to your module from the Medusa application’s configurations and using them in the module’s resources. - -## What are Module Options? - -A module can receive options to customize or configure its functionality. For example, if you’re creating a module that integrates a third-party service, you’ll want to receive the integration credentials in the options rather than adding them directly in your code. - -*** - -## How to Pass Options to a Module? - -To pass options to a module, add an `options` property to the module’s configuration in `medusa-config.ts`. - -For example: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "./src/modules/blog", - options: { - capitalize: true, - }, - }, - ], -}) -``` - -The `options` property’s value is an object. You can pass any properties you want. - -### Pass Options to a Module in a Plugin - -If your module is part of a plugin, you can pass options to the module in the plugin’s configuration. - -For example: - -```ts title="medusa-config.ts" -import { defineConfig } from "@medusajs/framework/utils" -module.exports = defineConfig({ - plugins: [ - { - resolve: "@myorg/plugin-name", - options: { - capitalize: true, - }, - }, - ], -}) -``` - -The `options` property in the plugin configuration is passed to all modules in a plugin. - -*** - -## Access Module Options in Main Service - -The module’s main service receives the module options as a second parameter. - -For example: - -```ts title="src/modules/blog/service.ts" highlights={[["12"], ["14", "options?: ModuleOptions"], ["17"], ["18"], ["19"]]} -import { MedusaService } from "@medusajs/framework/utils" -import Post from "./models/post" - -// recommended to define type in another file -type ModuleOptions = { - capitalize?: boolean -} - -export default class BlogModuleService extends MedusaService({ - Post, -}){ - protected options_: ModuleOptions - - constructor({}, options?: ModuleOptions) { - super(...arguments) - - this.options_ = options || { - capitalize: false, - } - } - - // ... -} -``` - -*** - -## Access Module Options in Loader - -The object that a module’s loaders receive as a parameter has an `options` property holding the module's options. - -For example: - -```ts title="src/modules/blog/loaders/hello-world.ts" highlights={[["11"], ["12", "ModuleOptions", "The type of expected module options."], ["16"]]} -import { - LoaderOptions, -} from "@medusajs/framework/types" - -// recommended to define type in another file -type ModuleOptions = { - capitalize?: boolean -} - -export default async function helloWorldLoader({ - options, -}: LoaderOptions) { - - console.log( - "[BLOG MODULE] Just started the Medusa application!", - options - ) -} -``` - -*** - -## Validate Module Options - -If you expect a certain option and want to throw an error if it's not provided or isn't valid, it's recommended to perform the validation in a loader. The module's service is only instantiated when it's used, whereas the loader runs the when the Medusa application starts. - -So, by performing the validation in the loader, you ensure you can throw an error at an early point, rather than when the module is used. - -For example, to validate that the Hello Module received an `apiKey` option, create the loader `src/modules/loaders/validate.ts`: - -```ts title="src/modules/blog/loaders/validate.ts" -import { LoaderOptions } from "@medusajs/framework/types" -import { MedusaError } from "@medusajs/framework/utils" - -// recommended to define type in another file -type ModuleOptions = { - apiKey?: string -} - -export default async function validationLoader({ - options, -}: LoaderOptions) { - if (!options.apiKey) { - throw new MedusaError( - MedusaError.Types.INVALID_DATA, - "Hello Module requires an apiKey option." - ) - } -} -``` - -Then, export the loader in the module's definition file, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/loaders/index.html.md): - -```ts title="src/modules/blog/index.ts" -// other imports... -import validationLoader from "./loaders/validate" - -export const BLOG_MODULE = "blog" - -export default Module(BLOG_MODULE, { - // ... - loaders: [validationLoader], -}) -``` - -Now, when the Medusa application starts, the loader will run, validating the module's options and throwing an error if the `apiKey` option is missing. - - -# Scheduled Jobs Number of Executions - -In this chapter, you'll learn how to set a limit on the number of times a scheduled job is executed. - -## numberOfExecutions Option - -The export configuration object of the scheduled job accepts an optional property `numberOfExecutions`. Its value is a number indicating how many times the scheduled job can be executed during the Medusa application's runtime. - -For example: - -```ts highlights={highlights} -export default async function myCustomJob() { - console.log("I'll be executed three times only.") -} - -export const config = { - name: "hello-world", - // execute every minute - schedule: "* * * * *", - numberOfExecutions: 3, -} -``` - -The above scheduled job has the `numberOfExecutions` configuration set to `3`. - -So, it'll only execute 3 times, each every minute, then it won't be executed anymore. - -If you restart the Medusa application, the scheduled job will be executed again until reaching the number of executions specified. - - -# Service Constraints - -This chapter lists constraints to keep in mind when creating a service. - -## Use Async Methods - -Medusa wraps service method executions to inject useful context or transactions. However, since Medusa can't detect whether the method is asynchronous, it always executes methods in the wrapper with the `await` keyword. - -For example, if you have a synchronous `getMessage` method, and you use it in other resources like workflows, Medusa executes it as an async method: - -```ts -await blogModuleService.getMessage() -``` - -So, make sure your service's methods are always async to avoid unexpected errors or behavior. - -```ts highlights={[["8", "", "Method must be async."], ["13", "async", "Correct way of defining the method."]]} -import { MedusaService } from "@medusajs/framework/utils" -import Post from "./models/post" - -class BlogModuleService extends MedusaService({ - Post, -}){ - // Don't - getMessage(): string { - return "Hello, World!" - } - - // Do - async getMessage(): Promise { - return "Hello, World!" - } -} - -export default BlogModuleService -``` - - -# Guide: Define Module Link Between Brand and Product - -In this chapter, you'll learn how to define a module link between a brand defined in the [custom Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md), and a product defined in the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md) that's available in your Medusa application out-of-the-box. - -Modules are [isolated](https://docs.medusajs.com/learn/fundamentals/modules/isolation/index.html.md) from other resources, ensuring that they're integrated into the Medusa application without side effects. However, you may need to associate data models of different modules, or you're trying to extend data models from Commerce Modules with custom properties. To do that, you define module links. - -A module link forms an association between two data models of different modules while maintaining module isolation. You can then manage and query linked records of the data models using Medusa's Modules SDK. - -In this chapter, you'll define a module link between the `Brand` data model of the Brand Module, and the `Product` data model of the Product Module. In later chapters, you'll manage and retrieve linked product and brand records. - -Learn more about module links in [this chapters](https://docs.medusajs.com/learn/fundamentals/module-links/index.html.md). - -### Prerequisites - -- [Brand Module having a Brand data model](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) - -## 1. Define Link - -Links are defined in a TypeScript or JavaScript file under the `src/links` directory. The file defines and exports the link using `defineLink` from the Modules SDK. - -So, to define a link between the `Product` and `Brand` models, create the file `src/links/product-brand.ts` with the following content: - -![The directory structure of the Medusa application after adding the link.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733329897/Medusa%20Book/brands-link-dir-overview_t1rhlp.jpg) - -```ts title="src/links/product-brand.ts" highlights={highlights} -import BrandModule from "../modules/brand" -import ProductModule from "@medusajs/medusa/product" -import { defineLink } from "@medusajs/framework/utils" - -export default defineLink( - { - linkable: ProductModule.linkable.product, - isList: true, - }, - BrandModule.linkable.brand -) -``` - -You import each module's definition object from the `index.ts` file of the module's directory. Each module object has a special `linkable` property that holds the data models' link configurations. - -The `defineLink` function accepts two parameters of the same type, which is either: - -- The data model's link configuration, which you access from the Module's `linkable` property; -- Or an object that has two properties: - - `linkable`: the data model's link configuration, which you access from the Module's `linkable` property. - - `isList`: A boolean indicating whether many records of the data model can be linked to the other model. - -So, in the above code snippet, you define a link between the `Product` and `Brand` data models. Since a brand can be associated with multiple products, you enable `isList` in the `Product` model's object. - -*** - -## 2. Sync the Link to the Database - -A module link is represented in the database as a table that stores the IDs of linked records. So, after defining the link, run the following command to create the module link's table in the database: - -```bash -npx medusa db:migrate -``` - -This command reflects migrations on the database and syncs module links, which creates a table for the `product-brand` link. - -You can also run the `npx medusa db:sync-links` to just sync module links without running migrations. - -*** - -## Next Steps: Extend Create Product Flow - -In the next chapter, you'll extend Medusa's workflow and API route that create a product to allow associating a brand with a product. You'll also learn how to link brand and product records. - - -# Guide: Extend Create Product Flow - -After linking the [custom Brand data model](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) and Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md) in the [previous chapter](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md), you'll extend the create product workflow and API route to allow associating a brand with a product. - -Some API routes, including the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts), accept an `additional_data` request body parameter. This parameter can hold custom data that's passed to the [hooks](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md) of the workflow executed in the API route, allowing you to consume those hooks and perform actions with the custom data. - -So, in this chapter, to extend the create product flow and associate a brand with a product, you will: - -- Consume the [productsCreated](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow#productsCreated/index.html.md) hook of the [createProductsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md), which is executed within the workflow after the product is created. You'll link the product with the brand passed in the `additional_data` parameter. -- Extend the Create Product API route to allow passing a brand ID in `additional_data`. - -To learn more about the `additional_data` property and the API routes that accept additional data, refer to [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md). - -### Prerequisites - -- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) -- [Defined link between the Brand and Product data models.](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) - -*** - -## 1. Consume the productsCreated Hook - -A workflow hook is a point in a workflow where you can inject a step to perform a custom functionality. Consuming a workflow hook allows you to extend the features of a workflow and, consequently, the API route that uses it. - -Learn more about the workflow hooks in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/workflow-hooks/index.html.md). - -The [createProductsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md) used in the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts) has a `productsCreated` hook that runs after the product is created. You'll consume this hook to link the created product with the brand specified in the request parameters. - -To consume the `productsCreated` hook, create the file `src/workflows/hooks/created-product.ts` with the following content: - -![Directory structure after creating the hook's file.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733384338/Medusa%20Book/brands-hook-dir-overview_ltwr5h.jpg) - -```ts title="src/workflows/hooks/created-product.ts" highlights={hook1Highlights} -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" -import { StepResponse } from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" -import { LinkDefinition } from "@medusajs/framework/types" -import { BRAND_MODULE } from "../../modules/brand" -import BrandModuleService from "../../modules/brand/service" - -createProductsWorkflow.hooks.productsCreated( - (async ({ products, additional_data }, { container }) => { - if (!additional_data?.brand_id) { - return new StepResponse([], []) - } - - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - // if the brand doesn't exist, an error is thrown. - await brandModuleService.retrieveBrand(additional_data.brand_id as string) - - // TODO link brand to product - }) -) -``` - -Workflows have a special `hooks` property to access its hooks and consume them. Each hook, such as `productsCreated`, accepts a step function as a parameter. The step function accepts the following parameters: - -1. An object having an `additional_data` property, which is the custom data passed in the request body under `additional_data`. The object will also have properties passed from the workflow to the hook, which in this case is the `products` property that holds an array of the created products. -2. An object of properties related to the step's context. It has a `container` property whose value is the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) to resolve Framework and commerce tools. - -In the step, if a brand ID is passed in `additional_data`, you resolve the Brand Module's service and use its generated `retrieveBrand` method to retrieve the brand by its ID. The `retrieveBrand` method will throw an error if the brand doesn't exist. - -### Link Brand to Product - -Next, you want to create a link between the created products and the brand. To do so, you use Link, which is a class from the Modules SDK that provides methods to manage linked records. - -Learn more about Link in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/link/index.html.md). - -To use Link in the `productsCreated` hook, replace the `TODO` with the following: - -```ts title="src/workflows/hooks/created-product.ts" highlights={hook2Highlights} -const link = container.resolve("link") -const logger = container.resolve("logger") - -const links: LinkDefinition[] = [] - -for (const product of products) { - links.push({ - [Modules.PRODUCT]: { - product_id: product.id, - }, - [BRAND_MODULE]: { - brand_id: additional_data.brand_id, - }, - }) -} - -await link.create(links) - -logger.info("Linked brand to products") - -return new StepResponse(links, links) -``` - -You resolve Link from the container. Then you loop over the created products to assemble an array of links to be created. After that, you pass the array of links to Link's `create` method, which will link the product and brand records. - -Each property in the link object is the name of a module, and its value is an object having a `{model_name}_id` property, where `{model_name}` is the snake-case name of the module's data model. Its value is the ID of the record to be linked. The link object's properties must be set in the same order as the link configurations passed to `defineLink`. - -![Diagram showcasing how the order of defining a link affects creating the link](https://res.cloudinary.com/dza7lstvk/image/upload/v1733386156/Medusa%20Book/remote-link-brand-product-exp_fhjmg4.jpg) - -Finally, you return an instance of `StepResponse` returning the created links. - -### Dismiss Links in Compensation - -You can pass as a second parameter of the hook a compensation function that undoes what the step did. It receives as a first parameter the returned `StepResponse`'s second parameter, and the step context object as a second parameter. - -To undo creating the links in the hook, pass the following compensation function as a second parameter to `productsCreated`: - -```ts title="src/workflows/hooks/created-product.ts" -createProductsWorkflow.hooks.productsCreated( - // ... - (async (links, { container }) => { - if (!links?.length) { - return - } - - const link = container.resolve("link") - - await link.dismiss(links) - }) -) -``` - -In the compensation function, if the `links` parameter isn't empty, you resolve Link from the container and use its `dismiss` method. This method removes a link between two records. It accepts the same parameter as the `create` method. - -*** - -## 2. Configure Additional Data Validation - -Now that you've consumed the `productsCreated` hook, you want to configure the `/admin/products` API route that creates a new product to accept a brand ID in its `additional_data` parameter. - -You configure the properties accepted in `additional_data` in the `src/api/middlewares.ts` that exports middleware configurations. So, create the file (or, if already existing, add to the file) `src/api/middlewares.ts` the following content: - -![Directory structure after adding the middelwares file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733386868/Medusa%20Book/brands-middleware-dir-overview_uczos1.jpg) - -```ts title="src/api/middlewares.ts" -import { defineMiddlewares } from "@medusajs/framework/http" -import { z } from "zod" - -// ... - -export default defineMiddlewares({ - routes: [ - // ... - { - matcher: "/admin/products", - method: ["POST"], - additionalDataValidator: { - brand_id: z.string().optional(), - }, - }, - ], -}) -``` - -Objects in `routes` accept an `additionalDataValidator` property that configures the validation rules for custom properties passed in the `additional_data` request parameter. It accepts an object whose keys are custom property names, and their values are validation rules created using [Zod](https://zod.dev/). - -So, `POST` requests sent to `/admin/products` can now pass the ID of a brand in the `brand_id` property of `additional_data`. - -*** - -## Test it Out - -To test it out, first, retrieve the authentication token of your admin user by sending a `POST` request to `/auth/user/emailpass`: - -```bash -curl -X POST 'http://localhost:9000/auth/user/emailpass' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "email": "admin@medusa-test.com", - "password": "supersecret" -}' -``` - -Make sure to replace the email and password in the request body with your user's credentials. - -Then, send a `POST` request to `/admin/products` to create a product, and pass in the `additional_data` parameter a brand's ID: - -```bash -curl -X POST 'http://localhost:9000/admin/products' \ --H 'Content-Type: application/json' \ --H 'Authorization: Bearer {token}' \ ---data '{ - "title": "Product 1", - "options": [ - { - "title": "Default option", - "values": ["Default option value"] - } - ], - "shipping_profile_id": "{shipping_profile_id}", - "additional_data": { - "brand_id": "{brand_id}" - } -}' -``` - -Make sure to replace `{token}` with the token you received from the previous request, `shipping_profile_id` with the ID of a shipping profile in your application, and `{brand_id}` with the ID of a brand in your application. You can retrieve the ID of a shipping profile either from the Medusa Admin, or the [List Shipping Profiles API route](https://docs.medusajs.com/api/admin#shipping-profiles_getshippingprofiles). - -The request creates a product and returns it. - -In the Medusa application's logs, you'll find the message `Linked brand to products`, indicating that the workflow hook handler ran and linked the brand to the products. - -*** - -## Next Steps: Query Linked Brands and Products - -Now that you've extending the create-product flow to link a brand to it, you want to retrieve the brand details of a product. You'll learn how to do so in the next chapter. - - -# Guide: Query Product's Brands - -In the previous chapters, you [defined a link](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) between the [custom Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) and Medusa's [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md), then [extended the create-product flow](https://docs.medusajs.com/learn/customization/extend-features/extend-create-product/index.html.md) to link a product to a brand. - -In this chapter, you'll learn how to retrieve a product's brand (and vice-versa) in two ways: Using Medusa's existing API route, or in customizations, such as a custom API route. - -### Prerequisites - -- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) -- [Defined link between the Brand and Product data models.](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) - -*** - -## Approach 1: Retrieve Brands in Existing API Routes - -Medusa's existing API routes accept a `fields` query parameter that allows you to specify the fields and relations of a model to retrieve. So, when you send a request to the [List Products](https://docs.medusajs.com/api/admin#products_getproducts), [Get Product](https://docs.medusajs.com/api/admin#products_getproductsid), or any product-related store or admin routes that accept a `fields` query parameter, you can specify in this parameter to return the product's brands. - -Learn more about using the `fields` query parameter to retrieve custom linked data models in the [Retrieve Custom Linked Data Models from Medusa's API Routes](https://docs.medusajs.com/learn/fundamentals/api-routes/retrieve-custom-links/index.html.md) chapter. - -For example, send the following request to retrieve the list of products with their brands: - -```bash -curl 'http://localhost:9000/admin/products?fields=+brand.*' \ ---header 'Authorization: Bearer {token}' -``` - -Make sure to replace `{token}` with your admin user's authentication token. Learn how to retrieve it in the [API reference](https://docs.medusajs.com/api/store#authentication). - -Any product that is linked to a brand will have a `brand` property in its object: - -```json title="Example Product Object" -{ - "id": "prod_123", - // ... - "brand": { - "id": "01JEB44M61BRM3ARM2RRMK7GJF", - "name": "Acme", - "created_at": "2024-12-05T09:59:08.737Z", - "updated_at": "2024-12-05T09:59:08.737Z", - "deleted_at": null - } -} -``` - -By using the `fields` query parameter, you don't have to re-create existing API routes to get custom data models that you linked to core data models. - -### Limitations: Filtering by Brands in Existing API Routes - -While you can retrieve linked records using the `fields` query parameter of an existing API route, you can't filter by linked records. - -Instead, you'll have to create a custom API route that uses Query to retrieve linked records with filters, as explained in the [Query documentation](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-filters-and-pagination-on-linked-records/index.html.md). - -*** - -## Approach 2: Use Query to Retrieve Linked Records - -You can also retrieve linked records using Query. Query allows you to retrieve data across modules with filters, pagination, and more. You can resolve Query from the Medusa container and use it in your API route or workflow. - -Learn more about Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). - -For example, you can create an API route that retrieves brands and their products. If you followed the [Create Brands API route chapter](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), you'll have the file `src/api/admin/brands/route.ts` with a `POST` API route. Add a new `GET` function to the same file: - -```ts title="src/api/admin/brands/route.ts" highlights={highlights} -// other imports... -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const query = req.scope.resolve("query") - - const { data: brands } = await query.graph({ - entity: "brand", - fields: ["*", "products.*"], - }) - - res.json({ brands }) -} -``` - -This adds a `GET` API route at `/admin/brands`. In the API route, you resolve Query from the Medusa container. Query has a `graph` method that runs a query to retrieve data. It accepts an object having the following properties: - -- `entity`: The data model's name as specified in the first parameter of `model.define`. -- `fields`: An array of properties and relations to retrieve. You can pass: - - A property's name, such as `id`, or `*` for all properties. - - A relation or linked model's name, such as `products` (use the plural name since brands are linked to list of products). You suffix the name with `.*` to retrieve all its properties. - -`graph` returns an object having a `data` property, which is the retrieved brands. You return the brands in the response. - -### Test it Out - -To test the API route out, send a `GET` request to `/admin/brands`: - -```bash -curl 'http://localhost:9000/admin/brands' \ --H 'Authorization: Bearer {token}' -``` - -Make sure to replace `{token}` with your admin user's authentication token. Learn how to retrieve it in the [API reference](https://docs.medusajs.com/api/store#authentication). - -This returns the brands in your store with their linked products. For example: - -```json title="Example Response" -{ - "brands": [ - { - "id": "123", - // ... - "products": [ - { - "id": "prod_123", - // ... - } - ] - } - ] -} -``` - -### Limitations: Filtering by Brand in Query - -While you can use Query to retrieve linked records, you can't filter by linked records. - -For an alternative approach, refer to the [Query documentation](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-filters-and-pagination-on-linked-records/index.html.md). - -*** - -## Summary - -By following the examples of the previous chapters, you: - -- Defined a link between the Brand and Product modules's data models, allowing you to associate a product with a brand. -- Extended the create-product workflow and route to allow setting the product's brand while creating the product. -- Queried a product's brand, and vice versa. - -*** - -## Next Steps: Customize Medusa Admin - -Clients, such as the Medusa Admin dashboard, can now use brand-related features, such as creating a brand or setting the brand of a product. - -In the next chapters, you'll learn how to customize the Medusa Admin to show a product's brand on its details page, and to show a new page with the list of brands in your store. - - -# Expose a Workflow Hook - -In this chapter, you'll learn how to expose a hook in your workflow. - -## When to Expose a Hook - -Your workflow is reusable in other applications, and you allow performing an external action at some point in your workflow. - -Your workflow isn't reusable by other applications. Use a step that performs what a hook handler would instead. - -*** - -## How to Expose a Hook in a Workflow? - -To expose a hook in your workflow, use `createHook` from the Workflows SDK. - -For example: - -```ts title="src/workflows/my-workflow/index.ts" highlights={hookHighlights} -import { - createStep, - createHook, - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -import { createProductStep } from "./steps/create-product" - -export const myWorkflow = createWorkflow( - "my-workflow", - function (input) { - const product = createProductStep(input) - const productCreatedHook = createHook( - "productCreated", - { productId: product.id } - ) - - return new WorkflowResponse(product, { - hooks: [productCreatedHook], - }) - } -) -``` - -The `createHook` function accepts two parameters: - -1. The first is a string indicating the hook's name. You use this to consume the hook later. -2. The second is the input to pass to the hook handler. - -The workflow must also pass an object having a `hooks` property as a second parameter to the `WorkflowResponse` constructor. Its value is an array of the workflow's hooks. - -### How to Consume the Hook? - -To consume the hook of the workflow, create the file `src/workflows/hooks/my-workflow.ts` with the following content: - -```ts title="src/workflows/hooks/my-workflow.ts" highlights={handlerHighlights} -import { myWorkflow } from "../my-workflow" - -myWorkflow.hooks.productCreated( - async ({ productId }, { container }) => { - // TODO perform an action - } -) -``` - -The hook is available on the workflow's `hooks` property using its name `productCreated`. - -You invoke the hook, passing a step function (the hook handler) as a parameter. - - -# Compensation Function - -In this chapter, you'll learn what a compensation function is and how to add it to a step. - -## What is a Compensation Function - -A compensation function rolls back or undoes changes made by a step when an error occurs in the workflow. - -For example, if a step creates a record, the compensation function deletes the record when an error occurs later in the workflow. - -By using compensation functions, you provide a mechanism that guarantees data consistency in your application and across systems. - -*** - -## How to add a Compensation Function? - -A compensation function is passed as a second parameter to the `createStep` function. - -For example, create the file `src/workflows/hello-world.ts` with the following content: - -```ts title="src/workflows/hello-world.ts" highlights={[["15"], ["16"], ["17"]]} collapsibleLines="1-5" expandButtonLabel="Show Imports" -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async () => { - const message = `Hello from step one!` - - console.log(message) - - return new StepResponse(message) - }, - async () => { - console.log("Oops! Rolling back my changes...") - } -) -``` - -Each step can have a compensation function. The compensation function only runs if an error occurs throughout the workflow. - -*** - -## Test the Compensation Function - -Create a step in the same `src/workflows/hello-world.ts` file that throws an error: - -```ts title="src/workflows/hello-world.ts" -const step2 = createStep( - "step-2", - async () => { - throw new Error("Throwing an error...") - } -) -``` - -Then, create a workflow that uses the steps: - -```ts title="src/workflows/hello-world.ts" collapsibleLines="1-8" expandButtonLabel="Show Imports" -import { - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -// other imports... - -// steps... - -const myWorkflow = createWorkflow( - "hello-world", - function (input) { - const str1 = step1() - step2() - - return new WorkflowResponse({ - message: str1, - }) -}) - -export default myWorkflow -``` - -Finally, execute the workflow from an API route: - -```ts title="src/api/workflow/route.ts" collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import myWorkflow from "../../../workflows/hello-world" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await myWorkflow(req.scope) - .run() - - res.send(result) -} -``` - -Run the Medusa application and send a `GET` request to `/workflow`: - -```bash -curl http://localhost:9000/workflow -``` - -In the console, you'll see: - -- `Hello from step one!` logged in the terminal, indicating that the first step ran successfully. -- `Oops! Rolling back my changes...` logged in the terminal, indicating that the second step failed and the compensation function of the first step ran consequently. - -*** - -## Pass Input to Compensation Function - -If a step creates a record, the compensation function must receive the ID of the record to remove it. - -To pass input to the compensation function, pass a second parameter in the `StepResponse` returned by the step. - -For example: - -```ts highlights={inputHighlights} -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async () => { - return new StepResponse( - `Hello from step one!`, - { message: "Oops! Rolling back my changes..." } - ) - }, - async ({ message }) => { - console.log(message) - } -) -``` - -In this example, the step passes an object as a second parameter to `StepResponse`. - -The compensation function receives the object and uses its `message` property to log a message. - -*** - -## Resolve Resources from the Medusa Container - -The compensation function receives an object second parameter. The object has a `container` property that you use to resolve resources from the Medusa container. - -For example: - -```ts -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" - -const step1 = createStep( - "step-1", - async () => { - return new StepResponse( - `Hello from step one!`, - { message: "Oops! Rolling back my changes..." } - ) - }, - async ({ message }, { container }) => { - const logger = container.resolve( - ContainerRegistrationKeys.LOGGER - ) - - logger.info(message) - } -) -``` - -In this example, you use the `container` property in the second object parameter of the compensation function to resolve the logger. - -You then use the logger to log a message. - -*** - -## Handle Step Errors in Loops - -This feature is only available after [Medusa v2.0.5](https://github.com/medusajs/medusa/releases/tag/v2.0.5). - -Consider you have a module that integrates a third-party ERP system, and you're creating a workflow that deletes items in that ERP. You may have the following step: - -```ts -// other imports... -import { promiseAll } from "@medusajs/framework/utils" - -type StepInput = { - ids: string[] -} - -const step1 = createStep( - "step-1", - async ({ ids }: StepInput, { container }) => { - const erpModuleService = container.resolve( - ERP_MODULE - ) - const prevData: unknown[] = [] - - await promiseAll( - ids.map(async (id) => { - const data = await erpModuleService.retrieve(id) - - await erpModuleService.delete(id) - - prevData.push(id) - }) - ) - - return new StepResponse(ids, prevData) - } -) -``` - -In the step, you loop over the IDs to retrieve the item's data, store them in a `prevData` variable, then delete them using the ERP Module's service. You then pass the `prevData` variable to the compensation function. - -However, if an error occurs in the loop, the `prevData` variable won't be passed to the compensation function as the execution never reached the return statement. - -To handle errors in the loop so that the compensation function receives the last version of `prevData` before the error occurred, you wrap the loop in a try-catch block. Then, in the catch block, you invoke and return the `StepResponse.permanentFailure` function: - -```ts highlights={highlights} -try { - await promiseAll( - ids.map(async (id) => { - const data = await erpModuleService.retrieve(id) - - await erpModuleService.delete(id) - - prevData.push(id) - }) - ) -} catch (e) { - return StepResponse.permanentFailure( - `An error occurred: ${e}`, - prevData - ) -} -``` - -The `StepResponse.permanentFailure` fails the step and its workflow, triggering current and previous steps' compensation functions. The `permanentFailure` function accepts as a first parameter the error message, which is saved in the workflow's error details, and as a second parameter the data to pass to the compensation function. - -So, if an error occurs during the loop, the compensation function will still receive the `prevData` variable to undo the changes made before the step failed. - -For more details on error handling in workflows and steps, check the [Handling Errors chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). - - -# Workflow Constraints - -This chapter lists constraints of defining a workflow or its steps. - -Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. At that point, variables in the workflow don't have any values. They only do when you execute the workflow. - -This creates restrictions related to variable manipulations, using if-conditions, and other constraints. This chapter lists these constraints and provides their alternatives. - -## Workflow Constraints - -### No Async Functions - -The function passed to `createWorkflow` can’t be an async function: - -```ts highlights={[["4", "async", "Function can't be async."], ["11", "", "Correct way of defining the function."]]} -// Don't -const myWorkflow = createWorkflow( - "hello-world", - async function (input: WorkflowInput) { - // ... -}) - -// Do -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - // ... -}) -``` - -### No Direct Variable Manipulation - -You can’t directly manipulate variables within the workflow's constructor function. - -Learn more about why you can't manipulate variables [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md) - -Instead, use `transform` from the Workflows SDK: - -```ts highlights={highlights} -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const str1 = step1(input) - const str2 = step2(input) - - return new WorkflowResponse({ - message: `${str1}${str2}`, - }) -}) - -// Do -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const str1 = step1(input) - const str2 = step2(input) - - const result = transform( - { - str1, - str2, - }, - (input) => ({ - message: `${input.str1}${input.str2}`, - }) - ) - - return new WorkflowResponse(result) -}) -``` - -#### Create Dates in transform - -When you use `new Date()` in a workflow's constructor function, the date is evaluated when Medusa creates the internal representation of the workflow, not during execution. - -Instead, create the date using `transform`. - -Learn more about how Medusa creates an internal representation of a workflow [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). - -For example: - -```ts highlights={dateHighlights} -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const today = new Date() - - return new WorkflowResponse({ - today, - }) -}) - -// Do -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const today = transform({}, () => new Date()) - - return new WorkflowResponse({ - today, - }) -}) -``` - -### No If Conditions - -You can't use if-conditions in a workflow. - -Learn more about why you can't use if-conditions [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions#why-if-conditions-arent-allowed-in-workflows/index.html.md) - -Instead, use when-then from the Workflows SDK: - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - if (input.is_active) { - // perform an action - } -}) - -// Do (explained in the next chapter) -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - when(input, (input) => { - return input.is_active - }) - .then(() => { - // perform an action - }) -}) -``` - -You can also pair multiple `when-then` blocks to implement an `if-else` condition as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md). - -### No Conditional Operators - -You can't use conditional operators in a workflow, such as `??` or `||`. - -Learn more about why you can't use conditional operators [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions#why-if-conditions-arent-allowed-in-workflows/index.html.md) - -Instead, use `transform` to store the desired value in a variable. - -#### Logical Or (||) Alternative - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const message = input.message || "Hello" -}) - -// Do -// other imports... -import { transform } from "@medusajs/framework/workflows-sdk" - -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const message = transform( - { - input, - }, - (data) => data.input.message || "hello" - ) -}) -``` - -#### Nullish Coalescing (??) Alternative - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const message = input.message ?? "Hello" -}) - -// Do -// other imports... -import { transform } from "@medusajs/framework/workflows-sdk" - -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const message = transform( - { - input, - }, - (data) => data.input.message ?? "hello" - ) -}) -``` - -#### Double Not (!!) Alternative - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - step1({ - isActive: !!input.is_active, - }) -}) - -// Do -// other imports... -import { transform } from "@medusajs/framework/workflows-sdk" - -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const isActive = transform( - { - input, - }, - (data) => !!data.input.is_active - ) - - step1({ - isActive, - }) -}) -``` - -#### Ternary Alternative - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - step1({ - message: input.is_active ? "active" : "inactive", - }) -}) - -// Do -// other imports... -import { transform } from "@medusajs/framework/workflows-sdk" - -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const message = transform( - { - input, - }, - (data) => { - return data.input.is_active ? "active" : "inactive" - } - ) - - step1({ - message, - }) -}) -``` - -#### Optional Chaining (?.) Alternative - -```ts -// Don't -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - step1({ - name: input.customer?.name, - }) -}) - -// Do -// other imports... -import { transform } from "@medusajs/framework/workflows-sdk" - -const myWorkflow = createWorkflow( - "hello-world", - function (input: WorkflowInput) { - const name = transform( - { - input, - }, - (data) => data.input.customer?.name - ) - - step1({ - name, - }) -}) -``` - -### No Try-Catch - -In a workflow, don't use try-catch blocks to handle errors. - -Instead, refer to the [Error Handling](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md) chapter for alternative ways to handle errors. - -*** - -## Step Constraints - -### Returned Values - -A step must only return serializable values, such as [primitive values](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#primitive_values) or an object. - -Values of other types, such as Maps, aren't allowed. - -```ts -// Don't -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - (input, { container }) => { - const myMap = new Map() - - // ... - - return new StepResponse({ - myMap, - }) - } -) - -// Do -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - (input, { container }) => { - const myObj: Record = {} - - // ... - - return new StepResponse({ - myObj, - }) - } -) -``` - - -# Conditions in Workflows with When-Then - -In this chapter, you'll learn how to execute an action based on a condition in a workflow using when-then from the Workflows SDK. - -## Why If-Conditions Aren't Allowed in Workflows? - -Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. At that point, variables in the workflow don't have any values. They only do when you execute the workflow. - -So, you can't use an if-condition that checks a variable's value, as the condition will be evaluated when Medusa creates the internal representation of the workflow, rather than during execution. - -Instead, use when-then from the Workflows SDK. It allows you to perform steps in a workflow only if a condition that you specify is satisfied. - -Restrictions for conditions is only applicable in a workflow's definition. You can still use if-conditions in your step's code. - -*** - -## How to use When-Then? - -The Workflows SDK provides a `when` function that is used to check whether a condition is true. You chain a `then` function to `when` that specifies the steps to execute if the condition in `when` is satisfied. - -For example: - -```ts highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - when, -} from "@medusajs/framework/workflows-sdk" -// step imports... - -const workflow = createWorkflow( - "workflow", - function (input: { - is_active: boolean - }) { - - const result = when( - input, - (input) => { - return input.is_active - } - ).then(() => { - const stepResult = isActiveStep() - return stepResult - }) - - // executed without condition - const anotherStepResult = anotherStep(result) - - return new WorkflowResponse( - anotherStepResult - ) - } -) -``` - -In this code snippet, you execute the `isActiveStep` only if the `input.is_active`'s value is `true`. - -### When Parameters - -`when` accepts the following parameters: - -1. The first parameter is either an object or the workflow's input. This data is passed as a parameter to the function in `when`'s second parameter. -2. The second parameter is a function that returns a boolean indicating whether to execute the action in `then`. - -### Then Parameters - -To specify the action to perform if the condition is satisfied, chain a `then` function to `when` and pass it a callback function. - -The callback function is only executed if `when`'s second parameter function returns a `true` value. - -*** - -## Implementing If-Else with When-Then - -when-then doesn't support if-else conditions. Instead, use two `when-then` conditions in your workflow. - -For example: - -```ts highlights={ifElseHighlights} -const workflow = createWorkflow( - "workflow", - function (input: { - is_active: boolean - }) { - - const isActiveResult = when( - input, - (input) => { - return input.is_active - } - ).then(() => { - return isActiveStep() - }) - - const notIsActiveResult = when( - input, - (input) => { - return !input.is_active - } - ).then(() => { - return notIsActiveStep() - }) - - // ... - } -) -``` - -In the above workflow, you use two `when-then` blocks. The first one performs a step if `input.is_active` is `true`, and the second performs a step if `input.is_active` is `false`, acting as an else condition. - -*** - -## Specify Name for When-Then - -Internally, `when-then` blocks have a unique name similar to a step. When you return a step's result in a `when-then` block, the block's name is derived from the step's name. For example: - -```ts -const isActiveResult = when( - input, - (input) => { - return input.is_active - } -).then(() => { - return isActiveStep() -}) -``` - -This `when-then` block's internal name will be `when-then-is-active`, where `is-active` is the step's name. - -However, if you need to return in your `when-then` block something other than a step's result, you need to specify a unique step name for that block. Otherwise, Medusa will generate a random name for it which can cause unexpected errors in production. - -You pass a name for `when-then` as a first parameter of `when`, whose signature can accept three parameters in this case. For example: - -```ts highlights={nameHighlights} -const { isActive } = when( - "check-is-active", - input, - (input) => { - return input.is_active - } -).then(() => { - const isActive = isActiveStep() - - return { - isActive, - } -}) -``` - -Since `then` returns a value different than the step's result, you pass to the `when` function the following parameters: - -1. A unique name to be assigned to the `when-then` block. -2. Either an object or the workflow's input. This data is passed as a parameter to the function in `when`'s second parameter. -3. A function that returns a boolean indicating whether to execute the action in `then`. - -The second and third parameters are the same as the parameters you previously passed to `when`. - - -# Execute Another Workflow - -In this chapter, you'll learn how to execute a workflow in another. - -## Execute in a Workflow - -To execute a workflow in another, use the `runAsStep` method that every workflow has. - -For example: - -```ts highlights={workflowsHighlights} collapsibleLines="1-7" expandMoreButton="Show Imports" -import { - createWorkflow, -} from "@medusajs/framework/workflows-sdk" -import { - createProductsWorkflow, -} from "@medusajs/medusa/core-flows" - -const workflow = createWorkflow( - "hello-world", - async (input) => { - const products = createProductsWorkflow.runAsStep({ - input: { - products: [ - // ... - ], - }, - }) - - // ... - } -) -``` - -Instead of invoking the workflow and passing it the container, you use its `runAsStep` method and pass it an object as a parameter. - -The object has an `input` property to pass input to the workflow. - -*** - -## Preparing Input Data - -If you need to perform some data manipulation to prepare the other workflow's input data, use `transform` from the Workflows SDK. - -Learn about transform in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). - -For example: - -```ts highlights={transformHighlights} collapsibleLines="1-12" -import { - createWorkflow, - transform, -} from "@medusajs/framework/workflows-sdk" -import { - createProductsWorkflow, -} from "@medusajs/medusa/core-flows" - -type WorkflowInput = { - title: string -} - -const workflow = createWorkflow( - "hello-product", - async (input: WorkflowInput) => { - const createProductsData = transform({ - input, - }, (data) => [ - { - title: `Hello ${data.input.title}`, - }, - ]) - - const products = createProductsWorkflow.runAsStep({ - input: { - products: createProductsData, - }, - }) - - // ... - } -) -``` - -In this example, you use the `transform` function to prepend `Hello` to the title of the product. Then, you pass the result as an input to the `createProductsWorkflow`. - -*** - -## Run Workflow Conditionally - -To run a workflow in another based on a condition, use when-then from the Workflows SDK. - -Learn about when-then in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md). - -For example: - -```ts highlights={whenHighlights} collapsibleLines="1-16" -import { - createWorkflow, - when, -} from "@medusajs/framework/workflows-sdk" -import { - createProductsWorkflow, -} from "@medusajs/medusa/core-flows" -import { - CreateProductWorkflowInputDTO, -} from "@medusajs/framework/types" - -type WorkflowInput = { - product?: CreateProductWorkflowInputDTO - should_create?: boolean -} - -const workflow = createWorkflow( - "hello-product", - async (input: WorkflowInput) => { - const product = when(input, ({ should_create }) => should_create) - .then(() => { - return createProductsWorkflow.runAsStep({ - input: { - products: [input.product], - }, - }) - }) - } -) -``` - -In this example, you use when-then to run the `createProductsWorkflow` only if `should_create` (passed in the `input`) is enabled. - - -# Error Handling in Workflows - -In this chapter, you’ll learn about what happens when an error occurs in a workflow, how to disable error throwing in a workflow, and try-catch alternatives in workflow definitions. - -## Default Behavior of Errors in Workflows - -When an error occurs in a workflow, such as when a step throws an error, the workflow execution stops. Then, [the compensation function](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md) of every step in the workflow is called to undo the actions performed by their respective steps. - -The workflow's caller, such as an API route, subscriber, or scheduled job, will also fail and stop execution. Medusa then logs the error in the console. For API routes, an appropriate error is returned to the client based on the thrown error. - -Learn more about error handling in API routes in the [Errors chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/errors/index.html.md). - -This is the default behavior of errors in workflows. However, you can configure workflows to not throw errors, or you can configure a step's internal error handling mechanism to change the default behavior. - -*** - -## Disable Error Throwing in Workflow - -When an error is thrown in the workflow, that means the caller of the workflow, such as an API route, will fail and stop execution as well. - -While this is the common behavior, there are certain cases where you want to handle the error differently. For example, you may want to check the errors thrown by the workflow and return a custom error response to the client. - -The object parameter of a workflow's `run` method accepts a `throwOnError` property. When this property is set to `false`, the workflow will stop execution if an error occurs, but the Medusa's workflow engine will catch that error and return it to the caller instead of throwing it. - -For example: - -```ts title="src/api/workflows/route.ts" highlights={highlights} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import myWorkflow from "../../../workflows/hello-world" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result, errors } = await myWorkflow(req.scope) - .run({ - // ... - throwOnError: false, - }) - - if (errors.length) { - return res.send({ - message: "Something unexpected happened. Please try again.", - }) - } - - res.send(result) -} -``` - -You disable throwing errors in the workflow by setting the `throwOnError` property to `false` in the `run` method of the workflow. - -The object returned by the `run` method contains an `errors` property. This property is an array of errors that occured during the workflow's execution. You can check this array to see if any errors occurred and handle them accordingly. - -An error object has the following properties: - -- action: (\`string\`) The ID of the step that threw the error. -- handlerType: (\`invoke\` \\| \`compensate\`) Where the error occurred. If the value is \`invoke\`, it means the error occurred in a step. Otherwise, the error occurred in the compensation function of a step. -- error: (\[Error]\(https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error)) The error object that was thrown. - -*** - -## Try-Catch Alternatives in Workflow Definition - -If you want to use try-catch mechanism in a workflow to undo step actions, use a [compensation function](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md) instead. - -### Why You Can't Use Try-Catch in Workflow Definitions - -Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. - -At that point, variables in the workflow don't have any values. They only do when you execute the workflow. - -So, try-catch blocks in the workflow definition function won't have an effect, as at that time the workflow is not executed and errors are not thrown. - -You can still use try-catch blocks in a workflow's step functions. For cases that require granular control over error handling in a workflow's definition, you can configure the internal error handling mechanism of a step. - -### Skip Workflow on Step Failure - -A step has a `skipOnPermanentFailure` configuration that allows you to configure what happens when an error occurs in the step. Its value can be a boolean or a string. - -By default, `skipOnPermanentFailure` is disabled. When it's enabled, the workflow's status is set to `skipped` instead of `failed`. This means: - -- Compensation functions of the workflow's steps are not called. -- The workflow's caller continues executing. You can still [access the error](#disable-error-throwing-in-workflow) that occurred during the workflow's execution as mentioned in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. - -This is useful when you want to perform actions if no error occurs, but you don't care about compensating the workflow's steps or you don't want to stop the caller's execution. - -You can think of setting the `skipOnPermanentFailure` to `true` as the equivalent of the following `try-catch` block: - -```ts title="Outside a Workflow" -try { - actionThatThrowsError() - - moreActions() -} catch (e) { - // don't do anything -} -``` - -You can do this in a workflow using the step's `skipOnPermanentFailure` configuration: - -```ts title="Workflow Equivalent" highlights={skipOnPermanentFailureEnabledHighlights} -import { - createWorkflow, -} from "@medusajs/framework/workflows-sdk" -import { - actionThatThrowsError, - moreActions, -} from "./steps" - -export const myWorkflow = createWorkflow( - "hello-world", - function (input) { - actionThatThrowsError().config({ - skipOnPermanentFailure: true, - }) - - // This action will not be executed if the previous step throws an error - moreActions() - } -) -``` - -You set the configuration of a step by chaining the `config` method to the step's function call. The `config` method accepts an object similar to the one that can be passed to `createStep`. - -In this example, if the `actionThatThrowsError` step throws an error, the rest of the workflow will be skipped, and the `moreActions` step will not be executed. - -You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. - -### Continue Workflow Execution from a Specific Step - -In some cases, if an error occurs in a step, you may want to continue the workflow's execution from a specific step instead of stopping the workflow's execution or skipping the rest of the steps. - -The `skipOnPermanentFailure` configuration can accept a step's ID as a value. Then, the workflow will continue execution from that step if an error occurs in the step that has the `skipOnPermanentFailure` configuration. - -The compensation function of the step that has the `skipOnPermanentFailure` configuration will not be called when an error occurs. - -You can think of setting the `skipOnPermanentFailure` to a step's ID as the equivalent of the following `try-catch` block: - -```ts title="Outside a Workflow" -try { - actionThatThrowsError() - - moreActions() -} catch (e) { - // do nothing -} - -continueExecutionFromStep() -``` - -You can do this in a workflow using the step's `skipOnPermanentFailure` configuration: - -```ts title="Workflow Equivalent" highlights={skipOnPermanentFailureStepHighlights} -import { - createWorkflow, -} from "@medusajs/framework/workflows-sdk" -import { - actionThatThrowsError, - moreActions, - continueExecutionFromStep, -} from "./steps" - -export const myWorkflow = createWorkflow( - "hello-world", - function (input) { - actionThatThrowsError().config({ - // The `continue-execution-from-step` is the ID passed as a first - // parameter to `createStep` of `continueExecutionFromStep`. - skipOnPermanentFailure: "continue-execution-from-step", - }) - - // This action will not be executed if the previous step throws an error - moreActions() - - // This action will be executed either way - continueExecutionFromStep() - } -) -``` - -In this example, you configure the `actionThatThrowsError` step to continue the workflow's execution from the `continueExecutionFromStep` step if an error occurs in the `actionThatThrowsError` step. - -Notice that you pass the ID of the `continueExecutionFromStep` step as it's set in the `createStep` function. - -So, the `moreActions` step will not be executed if the `actionThatThrowsError` step throws an error, and the `continueExecutionFromStep` will be executed anyway. - -You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. - -If the specified step ID doesn't exist in the workflow, it will be equivalent to setting the `skipOnPermanentFailure` configuration to `true`. So, the workflow will be skipped, and the rest of the steps will not be executed. - -### Set Step as Failed, but Continue Workflow Execution - -In some cases, you may want to fail a step, but continue the rest of the workflow's execution. - -This is useful when you don't want a step's failure to stop the workflow's execution, but you want to mark that step as failed. - -The `continueOnPermanentFailure` configuration allows you to do that. When enabled, the workflow's execution will continue, but the step will be marked as failed if an error occurs in that step. - -The compensation function of the step that has the `continueOnPermanentFailure` configuration will not be called when an error occurs. - -You can think of setting the `continueOnPermanentFailure` to `true` as the equivalent of the following `try-catch` block: - -```ts title="Outside a Workflow" -try { - actionThatThrowsError() -} catch (e) { - // do nothing -} - -moreActions() -``` - -You can do this in a workflow using the step's `continueOnPermanentFailure` configuration: - -```ts title="Workflow Equivalent" highlights={continueOnPermanentFailureHighlights} -import { - createWorkflow, -} from "@medusajs/framework/workflows-sdk" -import { - actionThatThrowsError, - moreActions, -} from "./steps" - -export const myWorkflow = createWorkflow( - "hello-world", - function (input) { - actionThatThrowsError().config({ - continueOnPermanentFailure: true, - }) - - // This action will be executed even if the previous step throws an error - moreActions() - } -) -``` - -In this example, if the `actionThatThrowsError` step throws an error, the `moreActions` step will still be executed. - -You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. - - -# Long-Running Workflows - -In this chapter, you’ll learn what a long-running workflow is and how to configure it. - -## What is a Long-Running Workflow? - -When you execute a workflow, you wait until the workflow finishes execution to receive the output. - -A long-running workflow is a workflow that continues its execution in the background. You don’t receive its output immediately. Instead, you subscribe to the workflow execution to listen to status changes and receive its result once the execution is finished. - -### Why use Long-Running Workflows? - -Long-running workflows are useful if: - -- A task takes too long. For example, you're importing data from a CSV file. -- The workflow's steps wait for an external action to finish before resuming execution. For example, before you import the data from the CSV file, you wait until the import is confirmed by the user. -- You want to retry workflow steps after a long period of time. For example, you want to retry a step that processes a payment every day until the payment is successful. - - Refer to the [Retry Failed Steps chapter](https://docs.medusajs.com/learn/fundamentals/workflows/retry-failed-steps/index.html.md) for more information. - -*** - -## Configure Long-Running Workflows - -A workflow is considered long-running if at least one step has its `async` configuration set to `true` and doesn't return a step response. - -For example, consider the following workflow and steps: - -```ts title="src/workflows/hello-world.ts" highlights={[["15"]]} collapsibleLines="1-11" expandButtonLabel="Show More" -import { - createStep, - createWorkflow, - WorkflowResponse, - StepResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep("step-1", async () => { - return new StepResponse({}) -}) - -const step2 = createStep( - { - name: "step-2", - async: true, - }, - async () => { - console.log("Waiting to be successful...") - } -) - -const step3 = createStep("step-3", async () => { - return new StepResponse("Finished three steps") -}) - -const myWorkflow = createWorkflow( - "hello-world", - function () { - step1() - step2() - const message = step3() - - return new WorkflowResponse({ - message, - }) -}) - -export default myWorkflow -``` - -The second step has in its configuration object `async` set to `true` and it doesn't return a step response. This indicates that this step is an asynchronous step. - -So, when you execute the `hello-world` workflow, it continues its execution in the background once it reaches the second step. - -### When is a Workflow Considered Long-Running? - -A workflow is also considered long-running if: - -- One of its steps has its `async` configuration set to `true` and doesn't return a step response. -- One of its steps has its `retryInterval` option set as explained in the [Retry Failed Steps chapter](https://docs.medusajs.com/learn/fundamentals/workflows/retry-failed-steps/index.html.md). - -*** - -## Change Step Status - -Once the workflow's execution reaches an async step, it'll wait in the background for the step to succeed or fail before it moves to the next step. - -To fail or succeed a step, use the Workflow Engine Module's main service that is registered in the Medusa Container under the `Modules.WORKFLOW_ENGINE` (or `workflowsModuleService`) key. - -### Retrieve Transaction ID - -Before changing the status of a workflow execution's async step, you must have the execution's transaction ID. - -When you execute the workflow, the object returned has a `transaction` property, which is an object that holds the details of the workflow execution's transaction. Use its `transactionId` to later change async steps' statuses: - -```ts -const { transaction } = await myWorkflow(req.scope) - .run() - -// use transaction.transactionId later -``` - -### Change Step Status to Successful - -The Workflow Engine Module's main service has a `setStepSuccess` method to set a step's status to successful. If you use it on a workflow execution's async step, the workflow continues execution to the next step. - -For example, consider the following step: - -```ts highlights={successStatusHighlights} collapsibleLines="1-9" expandButtonLabel="Show Imports" -import { - Modules, - TransactionHandlerType, -} from "@medusajs/framework/utils" -import { - StepResponse, - createStep, -} from "@medusajs/framework/workflows-sdk" - -type SetStepSuccessStepInput = { - transactionId: string -}; - -export const setStepSuccessStep = createStep( - "set-step-success-step", - async function ( - { transactionId }: SetStepSuccessStepInput, - { container } - ) { - const workflowEngineService = container.resolve( - Modules.WORKFLOW_ENGINE - ) - - await workflowEngineService.setStepSuccess({ - idempotencyKey: { - action: TransactionHandlerType.INVOKE, - transactionId, - stepId: "step-2", - workflowId: "hello-world", - }, - stepResponse: new StepResponse("Done!"), - options: { - container, - }, - }) - } -) -``` - -In this step (which you use in a workflow other than the long-running workflow), you resolve the Workflow Engine Module's main service and set `step-2` of the previous workflow as successful. - -The `setStepSuccess` method of the workflow engine's main service accepts as a parameter an object having the following properties: - -- idempotencyKey: (\`object\`) The details of the workflow execution. - - - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. - - - transactionId: (\`string\`) The ID of the workflow execution's transaction. - - - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. - - - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. -- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the \`async\` step doesn't have a response, you set its response when changing its status. -- options: (\`Record\\`) Options to pass to the step. - - - container: (\`MedusaContainer\`) An instance of the Medusa Container - -### Change Step Status to Failed - -The Workflow Engine Module's main service also has a `setStepFailure` method that changes a step's status to failed. It accepts the same parameter as `setStepSuccess`. - -After changing the async step's status to failed, the workflow execution fails and the compensation functions of previous steps are executed. - -For example: - -```ts highlights={failureStatusHighlights} collapsibleLines="1-9" expandButtonLabel="Show Imports" -import { - Modules, - TransactionHandlerType, -} from "@medusajs/framework/utils" -import { - StepResponse, - createStep, -} from "@medusajs/framework/workflows-sdk" - -type SetStepFailureStepInput = { - transactionId: string -}; - -export const setStepFailureStep = createStep( - "set-step-failure-step", - async function ( - { transactionId }: SetStepFailureStepInput, - { container } - ) { - const workflowEngineService = container.resolve( - Modules.WORKFLOW_ENGINE - ) - - await workflowEngineService.setStepFailure({ - idempotencyKey: { - action: TransactionHandlerType.INVOKE, - transactionId, - stepId: "step-2", - workflowId: "hello-world", - }, - stepResponse: new StepResponse("Failed!"), - options: { - container, - }, - }) - } -) -``` - -You use this step in another workflow that changes the status of an async step in a long-running workflow's execution to failed. - -*** - -## Access Long-Running Workflow Status and Result - -To access the status and result of a long-running workflow execution, use the `subscribe` and `unsubscribe` methods of the Workflow Engine Module's main service. - -To retrieve the workflow execution's details at a later point, you must enable [storing the workflow's executions](https://docs.medusajs.com/learn/fundamentals/workflows/store-executions/index.html.md). - -For example: - -```ts title="src/api/workflows/route.ts" highlights={highlights} collapsibleLines="1-11" expandButtonLabel="Show Imports" -import type { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" -import myWorkflow from "../../../workflows/hello-world" -import { - IWorkflowEngineService, -} from "@medusajs/framework/types" -import { Modules } from "@medusajs/framework/utils" - -export async function GET(req: MedusaRequest, res: MedusaResponse) { - const { transaction, result } = await myWorkflow(req.scope).run() - - const workflowEngineService = req.scope.resolve< - IWorkflowEngineService - >( - Modules.WORKFLOW_ENGINE - ) - - const subscriptionOptions = { - workflowId: "hello-world", - transactionId: transaction.transactionId, - subscriberId: "hello-world-subscriber", - } - - await workflowEngineService.subscribe({ - ...subscriptionOptions, - subscriber: async (data) => { - if (data.eventType === "onFinish") { - console.log("Finished execution", data.result) - // unsubscribe - await workflowEngineService.unsubscribe({ - ...subscriptionOptions, - subscriberOrId: subscriptionOptions.subscriberId, - }) - } else if (data.eventType === "onStepFailure") { - console.log("Workflow failed", data.step) - } - }, - }) - - res.send(result) -} -``` - -In the above example, you execute the long-running workflow `hello-world` and resolve the Workflow Engine Module's main service from the Medusa container. - -### subscribe Method - -The main service's `subscribe` method allows you to listen to changes in the workflow execution’s status. It accepts an object having three properties: - -- workflowId: (\`string\`) The name of the workflow. -- transactionId: (\`string\`) The ID of the workflow exection's transaction. The transaction's details are returned in the response of the workflow execution. -- subscriberId: (\`string\`) The ID of the subscriber. -- subscriber: (\`(data: \{ eventType: string, result?: any }) => Promise\\`) The function executed when the workflow execution's status changes. The function receives a data object. It has an \`eventType\` property, which you use to check the status of the workflow execution. - -If the value of `eventType` in the `subscriber` function's first parameter is `onFinish`, the workflow finished executing. The first parameter then also has a `result` property holding the workflow's output. - -### unsubscribe Method - -You can unsubscribe from the workflow using the workflow engine's `unsubscribe` method, which requires the same object parameter as the `subscribe` method. - -However, instead of the `subscriber` property, it requires a `subscriberOrId` property whose value is the same `subscriberId` passed to the `subscribe` method. - -*** - -## Example: Restaurant-Delivery Recipe - -To find a full example of a long-running workflow, refer to the [restaurant-delivery recipe](https://docs.medusajs.com/resources/recipes/marketplace/examples/restaurant-delivery/index.html.md). - -In the recipe, you use a long-running workflow that moves an order from placed to completed. The workflow waits for the restaurant to accept the order, the driver to pick up the order, and other external actions. - - -# Retry Failed Steps - -In this chapter, you’ll learn how to configure steps to allow retrial on failure. - -## What is a Step Retrial? - -A step retrial is a mechanism that allows a step to be retried automatically when it fails. This is useful for handling transient errors, such as network issues or temporary unavailability of a service. - -When a step fails, the workflow engine can automatically retry the step a specified number of times before marking the workflow as failed. This can help improve the reliability and resilience of your workflows. - -You can also configure the interval between retries, allowing you to wait for a certain period before attempting the step again. This is useful when the failure is due to a temporary issue that may resolve itself after some time. - -For example, if a step captures a payment, you may want to retry it the next day until the payment is successful or the maximum number of retries is reached. - -*** - -## Configure a Step’s Retrial - -By default, when an error occurs in a step, the step and the workflow fail, and the execution stops. - -You can configure the step to retry on failure. The `createStep` function can accept a configuration object instead of the step’s name as a first parameter. - -For example: - -```ts title="src/workflows/hello-world.ts" highlights={[["10"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - createStep, - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - { - name: "step-1", - maxRetries: 2, - }, - async () => { - console.log("Executing step 1") - - throw new Error("Oops! Something happened.") - } -) - -const myWorkflow = createWorkflow( - "hello-world", - function () { - const str1 = step1() - - return new WorkflowResponse({ - message: str1, - }) -}) - -export default myWorkflow -``` - -The step’s configuration object accepts a `maxRetries` property, which is a number indicating the number of times a step can be retried when it fails. - -When you execute the above workflow, you’ll see the following result in the terminal: - -```bash -Executing step 1 -Executing step 1 -Executing step 1 -error: Oops! Something happened. -Error: Oops! Something happened. -``` - -The first line indicates the first time the step was executed, and the next two lines indicate the times the step was retried. After that, the step and workflow fail. - -*** - -## Step Retry Intervals - -By default, a step is retried immediately after it fails. To specify a wait time before a step is retried, pass a `retryInterval` property to the step's configuration object. Its value is a number of seconds to wait before retrying the step. - -For example: - -```ts title="src/workflows/hello-world.ts" highlights={[["5"]]} -const step1 = createStep( - { - name: "step-1", - maxRetries: 2, - retryInterval: 2, // 2 seconds - }, - async () => { - // ... - } -) -``` - -In this example, if the step fails, it will be retried after two seconds. - -### Maximum Retry Interval - -The `retryInterval` property's maximum value is [Number.MAX\_SAFE\_INTEGER](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER). So, you can set a very long wait time before the step is retried, allowing you to retry steps after a long period. - -For example, to retry a step after a day: - -```ts title="src/workflows/hello-world.ts" highlights={[["5"]]} -const step1 = createStep( - { - name: "step-1", - maxRetries: 2, - retryInterval: 86400, // 1 day - }, - async () => { - // ... - } -) -``` - -In this example, if the step fails, it will be retried after `86400` seconds (one day). - -### Interval Changes Workflow to Long-Running - -By setting `retryInterval` on a step, a workflow that uses that step becomes a [long-running workflow](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow/index.html.md) that runs asynchronously in the background. This is useful when creating workflows that may fail and should run for a long time until they succeed, such as waiting for a payment to be captured or a shipment to be delivered. - -However, since the long-running workflow runs in the background, you won't receive its result or errors immediately when you execute the workflow. - -Instead, you must subscribe to the workflow's execution using the Workflow Engine Module Service. Learn more about it in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow#access-long-running-workflow-status-and-result/index.html.md). - - -# Store Workflow Executions - -In this chapter, you'll learn how to store workflow executions in the database and access them later. - -## Workflow Execution Retention - -Medusa doesn't store your workflow's execution details by default. However, you can configure a workflow to keep its execution details stored in the database. - -This is useful for auditing and debugging purposes. When you store a workflow's execution, you can view details around its steps, their states and their output. You can also check whether the workflow or any of its steps failed. - -You can view stored workflow executions from the Medusa Admin dashboard by going to Settings -> Workflows. - -*** - -## How to Store Workflow's Executions? - -### Prerequisites - -- [Redis Workflow Engine must be installed and configured.](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) - -`createWorkflow` from the Workflows SDK can accept an object as a first parameter to set the workflow's configuration. To enable storing a workflow's executions: - -- Enable the `store` option. If your workflow is a [Long-Running Workflow](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow/index.html.md), this option is enabled by default. -- Set the `retentionTime` option to the number of seconds that the workflow execution should be stored in the database. - -For example: - -```ts highlights={highlights} -import { createStep, createWorkflow } from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - { - name: "step-1", - }, - async () => { - console.log("Hello from step 1") - } -) - -export const helloWorkflow = createWorkflow( - { - name: "hello-workflow", - retentionTime: 99999, - store: true, - }, - () => { - step1() - } -) -``` - -Whenever you execute the `helloWorkflow` now, its execution details will be stored in the database. - -*** - -## Retrieve Workflow Executions - -You can view stored workflow executions from the Medusa Admin dashboard by going to Settings -> Workflows. - -When you execute a workflow, the returned object has a `transaction` property containing the workflow execution's transaction details: - -```ts -const { transaction } = await helloWorkflow(container).run() -``` - -To retrieve a workflow's execution details from the database, resolve the Workflow Engine Module from the container and use its `listWorkflowExecutions` method. - -For example, you can create a `GET` API Route at `src/workflows/[id]/route.ts` that retrieves a workflow execution for the specified transaction ID: - -```ts title="src/workflows/[id]/route.ts" highlights={retrieveHighlights} -import { MedusaRequest, MedusaResponse } from "@medusajs/framework" -import { Modules } from "@medusajs/framework/utils" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { transaction_id } = req.params - - const workflowEngineService = req.scope.resolve( - Modules.WORKFLOW_ENGINE - ) - - const [workflowExecution] = await workflowEngineService.listWorkflowExecutions({ - transaction_id: transaction_id, - }) - - res.json({ - workflowExecution, - }) -} -``` - -In the above example, you resolve the Workflow Engine Module from the container and use its `listWorkflowExecutions` method, passing the `transaction_id` as a filter to retrieve its workflow execution details. - -A workflow execution object will be similar to the following: - -```json -{ - "workflow_id": "hello-workflow", - "transaction_id": "01JJC2T6AVJCQ3N4BRD1EB88SP", - "id": "wf_exec_01JJC2T6B3P76JD35F12QTTA78", - "execution": { - "state": "done", - "steps": {}, - "modelId": "hello-workflow", - "options": {}, - "metadata": {}, - "startedAt": 1737719880027, - "definition": {}, - "timedOutAt": null, - "hasAsyncSteps": false, - "transactionId": "01JJC2T6AVJCQ3N4BRD1EB88SP", - "hasFailedSteps": false, - "hasSkippedSteps": false, - "hasWaitingSteps": false, - "hasRevertedSteps": false, - "hasSkippedOnFailureSteps": false - }, - "context": { - "data": {}, - "errors": [] - }, - "state": "done", - "created_at": "2025-01-24T09:58:00.036Z", - "updated_at": "2025-01-24T09:58:00.046Z", - "deleted_at": null -} -``` - -### Example: Check if Stored Workflow Execution Failed - -To check if a stored workflow execution failed, you can check its `state` property: - -```ts -if (workflowExecution.state === "failed") { - return res.status(500).json({ - error: "Workflow failed", - }) -} -``` - -Other state values include `done`, `invoking`, and `compensating`. - - -# Run Workflow Steps in Parallel - -In this chapter, you’ll learn how to run workflow steps in parallel. - -## parallelize Utility Function - -If your workflow has steps that don’t rely on one another’s results, run them in parallel using `parallelize` from the Workflows SDK. - -The workflow waits until all steps passed to the `parallelize` function finish executing before continuing to the next step. - -For example: - -```ts highlights={highlights} collapsibleLines="1-12" expandButtonLabel="Show Imports" -import { - createWorkflow, - WorkflowResponse, - parallelize, -} from "@medusajs/framework/workflows-sdk" -import { - createProductStep, - getProductStep, - createPricesStep, - attachProductToSalesChannelStep, -} from "./steps" - -interface WorkflowInput { - title: string -} - -const myWorkflow = createWorkflow( - "my-workflow", - (input: WorkflowInput) => { - const product = createProductStep(input) - - const [prices, productSalesChannel] = parallelize( - createPricesStep(product), - attachProductToSalesChannelStep(product) - ) - - const refetchedProduct = getProductStep(product.id) - - return new WorkflowResponse(refetchedProduct) - } -) -``` - -The `parallelize` function accepts the steps to run in parallel as a parameter. - -It returns an array of the steps' results in the same order they're passed to the `parallelize` function. - -So, `prices` is the result of `createPricesStep`, and `productSalesChannel` is the result of `attachProductToSalesChannelStep`. - - -# Multiple Step Usage in Workflow - -In this chapter, you'll learn how to use a step multiple times in a workflow. - -## Problem Reusing a Step in a Workflow - -In some cases, you may need to use a step multiple times in the same workflow. - -The most common example is using the `useQueryGraphStep` multiple times in a workflow to retrieve multiple unrelated data, such as customers and products. - -Each workflow step must have a unique ID, which is the ID passed as a first parameter when creating the step: - -```ts -const useQueryGraphStep = createStep( - "use-query-graph" - // ... -) -``` - -This causes an error when you use the same step multiple times in a workflow, as it's registered in the workflow as two steps having the same ID: - -```ts -const helloWorkflow = createWorkflow( - "hello", - () => { - const { data: products } = useQueryGraphStep({ - entity: "product", - fields: ["id"], - }) - - // ERROR OCCURS HERE: A STEP HAS THE SAME ID AS ANOTHER IN THE WORKFLOW - const { data: customers } = useQueryGraphStep({ - entity: "customer", - fields: ["id"], - }) - } -) -``` - -The next section explains how to fix this issue to use the same step multiple times in a workflow. - -*** - -## How to Use a Step Multiple Times in a Workflow? - -When you execute a step in a workflow, you can chain a `config` method to it to change the step's config. - -Use the `config` method to change a step's ID for a single execution. - -So, this is the correct way to write the example above: - -```ts highlights={highlights} -const helloWorkflow = createWorkflow( - "hello", - () => { - const { data: products } = useQueryGraphStep({ - entity: "product", - fields: ["id"], - }) - - // ✓ No error occurs, the step has a different ID. - const { data: customers } = useQueryGraphStep({ - entity: "customer", - fields: ["id"], - }).config({ name: "fetch-customers" }) - } -) -``` - -The `config` method accepts an object with a `name` property. Its value is a new ID of the step to use for this execution only. - -The first `useQueryGraphStep` usage has the ID `use-query-graph`, and the second `useQueryGraphStep` usage has the ID `fetch-customers`. - - -# Data Manipulation in Workflows with transform - -In this chapter, you'll learn how to use `transform` from the Workflows SDK to manipulate data and variables in a workflow. - -## Why Variable Manipulation isn't Allowed in Workflows - -Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. - -At that point, variables in the workflow don't have any values. They only do when you execute the workflow. - -So, you can only pass variables as parameters to steps. But, in a workflow, you can't change a variable's value or, if the variable is an array, loop over its items. - -Instead, use `transform` from the Workflows SDK. - -Restrictions for variable manipulation is only applicable in a workflow's definition. You can still manipulate variables in your step's code. - -*** - -## What is the transform Utility? - -`transform` creates a new variable as the result of manipulating other variables. - -For example, consider you have two strings as the output of two steps: - -```ts -const str1 = step1() -const str2 = step2() -``` - -To concatenate the strings, you create a new variable `str3` using the `transform` function: - -```ts highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - transform, -} from "@medusajs/framework/workflows-sdk" -// step imports... - -const myWorkflow = createWorkflow( - "hello-world", - function (input) { - const str1 = step1(input) - const str2 = step2(input) - - const str3 = transform( - { str1, str2 }, - (data) => `${data.str1}${data.str2}` - ) - - return new WorkflowResponse(str3) - } -) -``` - -`transform` accepts two parameters: - -1. The first parameter is an object of variables to manipulate. The object is passed as a parameter to `transform`'s second parameter function. -2. The second parameter is the function performing the variable manipulation. - -The value returned by the second parameter function is returned by `transform`. So, the `str3` variable holds the concatenated string. - -You can use the returned value in the rest of the workflow, either to pass it as an input to other steps or to return it in the workflow's response. - -*** - -## Example: Looping Over Array - -Use `transform` to loop over arrays to create another variable from the array's items. - -For example: - -```ts collapsibleLines="1-7" expandButtonLabel="Show Imports" -import { - createWorkflow, - WorkflowResponse, - transform, -} from "@medusajs/framework/workflows-sdk" -// step imports... - -type WorkflowInput = { - items: { - id: string - name: string - }[] -} - -const myWorkflow = createWorkflow( - "hello-world", - function ({ items }: WorkflowInput) { - const ids = transform( - { items }, - (data) => data.items.map((item) => item.id) - ) - - doSomethingStep(ids) - - // ... - } -) -``` - -This workflow receives an `items` array in its input. - -You use `transform` to create an `ids` variable, which is an array of strings holding the `id` of each item in the `items` array. - -You then pass the `ids` variable as a parameter to the `doSomethingStep`. - -*** - -## Example: Creating a Date - -If you create a date with `new Date()` in a workflow's constructor function, Medusa evaluates the date's value when it creates the internal representation of the workflow, not when the workflow is executed. - -So, use `transform` instead to create a date variable with `new Date()`. - -For example: - -```ts -const myWorkflow = createWorkflow( - "hello-world", - () => { - const today = transform({}, () => new Date()) - - doSomethingStep(today) - } -) -``` - -In this workflow, `today` is only evaluated when the workflow is executed. - -*** - -## Caveats - -### Transform Evaluation - -`transform`'s value is only evaluated if you pass its output to a step or in the workflow response. - -For example, if you have the following workflow: - -```ts -const myWorkflow = createWorkflow( - "hello-world", - function (input) { - const str = transform( - { input }, - (data) => `${data.input.str1}${data.input.str2}` - ) - - return new WorkflowResponse("done") - } -) -``` - -Since `str`'s value isn't used as a step's input or passed to `WorkflowResponse`, its value is never evaluated. - -### Data Validation - -`transform` should only be used to perform variable or data manipulation. - -If you want to perform some validation on the data, use a step or [when-then](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md) instead. - -For example: - -```ts -// DON'T -const myWorkflow = createWorkflow( - "hello-world", - function (input) { - const str = transform( - { input }, - (data) => { - if (!input.str1) { - throw new Error("Not allowed!") - } - } - ) - } -) - -// DO -const validateHasStr1Step = createStep( - "validate-has-str1", - ({ input }) => { - if (!input.str1) { - throw new Error("Not allowed!") - } - } -) - -const myWorkflow = createWorkflow( - "hello-world", - function (input) { - validateHasStr1({ - input, - }) - - // workflow continues its execution only if - // the step doesn't throw the error. - } -) -``` - - -# Workflow Hooks - -In this chapter, you'll learn what a workflow hook is and how to consume them. - -## What is a Workflow Hook? - -A workflow hook is a point in a workflow where you can inject custom functionality as a step function, called a hook handler. - -Medusa exposes hooks in many of its workflows that are used in its API routes. You can consume those hooks to add your custom logic. - -Refer to the [Workflows Reference](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md) to view all workflows and their hooks. - -You want to perform a custom action during a workflow's execution, such as when a product is created. - -*** - -## How to Consume a Hook? - -A workflow has a special `hooks` property which is an object that holds its hooks. - -So, in a TypeScript or JavaScript file created under the `src/workflows/hooks` directory: - -- Import the workflow. -- Access its hook using the `hooks` property. -- Pass the hook a step function as a parameter to consume it. - -For example, to consume the `productsCreated` hook of Medusa's `createProductsWorkflow`, create the file `src/workflows/hooks/product-created.ts` with the following content: - -```ts title="src/workflows/hooks/product-created.ts" highlights={handlerHighlights} -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" - -createProductsWorkflow.hooks.productsCreated( - async ({ products }, { container }) => { - // TODO perform an action - } -) -``` - -The `productsCreated` hook is available on the workflow's `hooks` property by its name. - -You invoke the hook, passing a step function (the hook handler) as a parameter. - -Now, when a product is created using the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts), your hook handler is executed after the product is created. - -A hook can have only one handler. - -Refer to the [createProductsWorkflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md) to see at which point the hook handler is executed. - -### Hook Handler Parameter - -Since a hook handler is essentially a step function, it receives the hook's input as a first parameter, and an object holding a `container` property as a second parameter. - -Each hook has different input. For example, the `productsCreated` hook receives an object having a `products` property holding the created product. - -### Hook Handler Compensation - -Since the hook handler is a step function, you can set its compensation function as a second parameter of the hook. - -For example: - -```ts title="src/workflows/hooks/product-created.ts" -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" - -createProductsWorkflow.hooks.productsCreated( - async ({ products }, { container }) => { - // TODO perform an action - - return new StepResponse(undefined, { ids }) - }, - async ({ ids }, { container }) => { - // undo the performed action - } -) -``` - -The compensation function is executed if an error occurs in the workflow to undo the actions performed by the hook handler. - -The compensation function receives as an input the second parameter passed to the `StepResponse` returned by the step function. - -It also accepts as a second parameter an object holding a `container` property to resolve resources from the Medusa container. - -### Additional Data Property - -Medusa's workflows pass in the hook's input an `additional_data` property: - -```ts title="src/workflows/hooks/product-created.ts" highlights={[["4", "additional_data"]]} -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" - -createProductsWorkflow.hooks.productsCreated( - async ({ products, additional_data }, { container }) => { - // TODO perform an action - } -) -``` - -This property is an object that holds additional data passed to the workflow through the request sent to the API route using the workflow. - -Learn how to pass `additional_data` in requests to API routes in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md). - -### Pass Additional Data to Workflow - -You can also pass that additional data when executing the workflow. Pass it as a parameter to the `.run` method of the workflow: - -```ts title="src/workflows/hooks/product-created.ts" highlights={[["10", "additional_data"]]} -import type { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" -import { createProductsWorkflow } from "@medusajs/medusa/core-flows" - -export async function POST(req: MedusaRequest, res: MedusaResponse) { - await createProductsWorkflow(req.scope).run({ - input: { - products: [ - // ... - ], - additional_data: { - custom_field: "test", - }, - }, - }) -} -``` - -Your hook handler then receives that passed data in the `additional_data` object. - - -# Guide: Create Brand API Route - -In the previous two chapters, you created a [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) that added the concepts of brands to your application, then created a [workflow to create a brand](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). In this chapter, you'll expose an API route that allows admin users to create a brand using the workflow from the previous chapter. - -An API Route is an endpoint that acts as an entry point for other clients to interact with your Medusa customizations, such as the admin dashboard, storefronts, or third-party systems. - -The Medusa core application provides a set of [admin](https://docs.medusajs.com/api/admin) and [store](https://docs.medusajs.com/api/store) API routes out-of-the-box. You can also create custom API routes to expose your custom functionalities. - -### Prerequisites - -- [createBrandWorkflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) - -## 1. Create the API Route - -You create an API route in a `route.{ts,js}` file under a sub-directory of the `src/api` directory. The file exports API Route handler functions for at least one HTTP method (`GET`, `POST`, `DELETE`, etc…). - -Learn more about API routes [in this guide](https://docs.medusajs.com/learn/fundamentals/api-routes/index.html.md). - -The route's path is the path of `route.{ts,js}` relative to `src/api`. So, to create the API route at `/admin/brands`, create the file `src/api/admin/brands/route.ts` with the following content: - -![Directory structure of the Medusa application after adding the route](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869882/Medusa%20Book/brand-route-dir-overview-2_hjqlnf.jpg) - -```ts title="src/api/admin/brands/route.ts" -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { - createBrandWorkflow, -} from "../../../workflows/create-brand" - -type PostAdminCreateBrandType = { - name: string -} - -export const POST = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const { result } = await createBrandWorkflow(req.scope) - .run({ - input: req.validatedBody, - }) - - res.json({ brand: result }) -} -``` - -You export a route handler function with its name (`POST`) being the HTTP method of the API route you're exposing. - -The function receives two parameters: a `MedusaRequest` object to access request details, and `MedusaResponse` object to return or manipulate the response. The `MedusaRequest` object's `scope` property is the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) that holds Framework tools and custom and core modules' services. - -`MedusaRequest` accepts the request body's type as a type argument. - -In the API route's handler, you execute the `createBrandWorkflow` by invoking it and passing the Medusa container `req.scope` as a parameter, then invoking its `run` method. You pass the workflow's input in the `input` property of the `run` method's parameter. You pass the request body's parameters using the `validatedBody` property of `MedusaRequest`. - -You return a JSON response with the created brand using the `res.json` method. - -*** - -## 2. Create Validation Schema - -The API route you created accepts the brand's name in the request body. So, you'll create a schema used to validate incoming request body parameters. - -Medusa uses [Zod](https://zod.dev/) to create validation schemas. These schemas are then used to validate incoming request bodies or query parameters. - -Learn more about API route validation in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/validation/index.html.md). - -You create a validation schema in a TypeScript or JavaScript file under a sub-directory of the `src/api` directory. So, create the file `src/api/admin/brands/validators.ts` with the following content: - -![Directory structure of Medusa application after adding validators file](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869806/Medusa%20Book/brand-route-dir-overview-1_yfyjss.jpg) - -```ts title="src/api/admin/brands/validators.ts" -import { z } from "zod" - -export const PostAdminCreateBrand = z.object({ - name: z.string(), -}) -``` - -You export a validation schema that expects in the request body an object having a `name` property whose value is a string. - -You can then replace `PostAdminCreateBrandType` in `src/api/admin/brands/route.ts` with the following: - -```ts title="src/api/admin/brands/route.ts" -// ... -import { z } from "zod" -import { PostAdminCreateBrand } from "./validators" - -type PostAdminCreateBrandType = z.infer - -// ... -``` - -*** - -## 3. Add Validation Middleware - -A middleware is a function executed before the route handler when a request is sent to an API Route. It's useful to guard API routes, parse custom request body types, and apply validation on an API route. - -Learn more about middlewares in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/middlewares/index.html.md). - -Medusa provides a `validateAndTransformBody` middleware that accepts a Zod validation schema and returns a response error if a request is sent with body parameters that don't satisfy the validation schema. - -Middlewares are defined in the special file `src/api/middlewares.ts`. So, to add the validation middleware on the API route you created in the previous step, create the file `src/api/middlewares.ts` with the following content: - -![Directory structure of the Medusa application after adding the middleware](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869977/Medusa%20Book/brand-route-dir-overview-3_kcx511.jpg) - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - validateAndTransformBody, -} from "@medusajs/framework/http" -import { PostAdminCreateBrand } from "./admin/brands/validators" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/admin/brands", - method: "POST", - middlewares: [ - validateAndTransformBody(PostAdminCreateBrand), - ], - }, - ], -}) -``` - -You define the middlewares using the `defineMiddlewares` function and export its returned value. The function accepts an object having a `routes` property, which is an array of middleware objects. - -In the middleware object, you define three properties: - -- `matcher`: a string or regular expression indicating the API route path to apply the middleware on. You pass the create brand's route `/admin/brand`. -- `method`: The HTTP method to restrict the middleware to, which is `POST`. -- `middlewares`: An array of middlewares to apply on the route. You pass the `validateAndTransformBody` middleware, passing it the Zod schema you created earlier. - -The Medusa application will now validate the body parameters of `POST` requests sent to `/admin/brands` to ensure they match the Zod validation schema. If not, an error is returned in the response specifying the issues to fix in the request body. - -*** - -## Test API Route - -To test out the API route, start the Medusa application with the following command: - -```bash npm2yarn -npm run dev -``` - -Since the `/admin/brands` API route has a `/admin` prefix, it's only accessible by authenticated admin users. - -So, to retrieve an authenticated token of your admin user, send a `POST` request to the `/auth/user/emailpass` API Route: - -```bash -curl -X POST 'http://localhost:9000/auth/user/emailpass' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "email": "admin@medusa-test.com", - "password": "supersecret" -}' -``` - -Make sure to replace the email and password with your admin user's credentials. - -Don't have an admin user? Refer to [this guide](https://docs.medusajs.com/learn/installation#create-medusa-admin-user/index.html.md). - -Then, send a `POST` request to `/admin/brands`, passing the token received from the previous request in the `Authorization` header: - -```bash -curl -X POST 'http://localhost:9000/admin/brands' \ --H 'Content-Type: application/json' \ --H 'Authorization: Bearer {token}' \ ---data '{ - "name": "Acme" -}' -``` - -This returns the created brand in the response: - -```json title="Example Response" -{ - "brand": { - "id": "01J7AX9ES4X113HKY6C681KDZJ", - "name": "Acme", - "created_at": "2024-09-09T08:09:34.244Z", - "updated_at": "2024-09-09T08:09:34.244Z" - } -} -``` - -*** - -## Summary - -By following the previous example chapters, you implemented a custom feature that allows admin users to create a brand. You did that by: - -1. Creating a module that defines and manages a `brand` table in the database. -2. Creating a workflow that uses the module's service to create a brand record, and implements the compensation logic to delete that brand in case an error occurs. -3. Creating an API route that allows admin users to create a brand. - -*** - -## Next Steps: Associate Brand with Product - -Now that you have brands in your Medusa application, you want to associate a brand with a product, which is defined in the [Product Module](https://docs.medusajs.com/resources/commerce-modules/product/index.html.md). - -In the next chapters, you'll learn how to build associations between data models defined in different modules. - - -# Workflow Timeout - -In this chapter, you’ll learn how to set a timeout for workflows and steps. - -## What is a Workflow Timeout? - -By default, a workflow doesn’t have a timeout. It continues execution until it’s finished or an error occurs. - -You can configure a workflow’s timeout to indicate how long the workflow can execute. If a workflow's execution time passes the configured timeout, it is failed and an error is thrown. - -### Timeout Doesn't Stop Step Execution - -Configuring a timeout doesn't stop the execution of a step in progress. The timeout only affects the status of the workflow and its result. - -*** - -## Configure Workflow Timeout - -The `createWorkflow` function can accept a configuration object instead of the workflow’s name. - -In the configuration object, you pass a `timeout` property, whose value is a number indicating the timeout in seconds. - -For example: - -```ts title="src/workflows/hello-world.ts" highlights={[["16"]]} collapsibleLines="1-13" expandButtonLabel="Show More" -import { - createStep, - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async () => { - // ... - } -) - -const myWorkflow = createWorkflow({ - name: "hello-world", - timeout: 2, // 2 seconds -}, function () { - const str1 = step1() - - return new WorkflowResponse({ - message: str1, - }) -}) - -export default myWorkflow - -``` - -This workflow's executions fail if they run longer than two seconds. - -A workflow’s timeout error is returned in the `errors` property of the workflow’s execution, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). The error’s name is `TransactionTimeoutError`. - -*** - -## Configure Step Timeout - -Alternatively, you can configure the timeout for a step rather than the entire workflow. - -As mentioned in the previous section, the timeout doesn't stop the execution of the step. It only affects the step's status and output. - -The step’s configuration object accepts a `timeout` property, whose value is a number indicating the timeout in seconds. - -For example: - -```tsx -const step1 = createStep( - { - name: "step-1", - timeout: 2, // 2 seconds - }, - async () => { - // ... - } -) -``` - -This step's executions fail if they run longer than two seconds. - -A step’s timeout error is returned in the `errors` property of the workflow’s execution, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). The error’s name is `TransactionStepTimeoutError`. - - -# Guide: Implement Brand Module - -In this chapter, you'll build a Brand Module that adds a `brand` table to the database and provides data-management features for it. - -A module is a reusable package of functionalities related to a single domain or integration. Medusa comes with multiple pre-built modules for core commerce needs, such as the [Cart Module](https://docs.medusajs.com/resources/commerce-modules/cart/index.html.md) that holds the data models and business logic for cart operations. - -In a module, you create data models and business logic to manage them. In the next chapters, you'll see how you use the module to build commerce features. - -![Diagram showcasing an overview of the Brand Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1746546820/Medusa%20Resources/brand-module_pg86gm.jpg) - -Learn more about modules in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). - -## 1. Create Module Directory - -Modules are created in a sub-directory of `src/modules`. So, start by creating the directory `src/modules/brand` that will hold the Brand Module's files. - -![Directory structure in Medusa project after adding the brand directory](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868844/Medusa%20Book/brand-dir-overview-1_hxwvgx.jpg) - -*** - -## 2. Create Data Model - -A data model represents a table in the database. You create data models using Medusa's Data Model Language (DML). It simplifies defining a table's columns, relations, and indexes with straightforward methods and configurations. - -Learn more about data models in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#1-create-data-model/index.html.md). - -You create a data model in a TypeScript or JavaScript file under the `models` directory of a module. So, to create a data model that represents a new `brand` table in the database, create the file `src/modules/brand/models/brand.ts` with the following content: - -![Directory structure in module after adding the brand data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868920/Medusa%20Book/brand-dir-overview-2_lexhdl.jpg) - -```ts title="src/modules/brand/models/brand.ts" -import { model } from "@medusajs/framework/utils" - -export const Brand = model.define("brand", { - id: model.id().primaryKey(), - name: model.text(), -}) -``` - -You create a `Brand` data model which has an `id` primary key property, and a `name` text property. - -You define the data model using the `define` method of the DML. It accepts two parameters: - -1. The first one is the name of the data model's table in the database. Use snake-case names. -2. The second is an object, which is the data model's schema. - -Learn about other property types in [this chapter](https://docs.medusajs.com/learn/fundamentals/data-models/properties/index.html.md). - -*** - -## 3. Create Module Service - -You perform database operations on your data models in a service, which is a class exported by the module and acts like an interface to its functionalities. - -In this step, you'll create the Brand Module's service that provides methods to manage the `Brand` data model. In the next chapters, you'll use this service when exposing custom features that involve managing brands. - -Learn more about services in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#2-create-service/index.html.md). - -You define a service in a `service.ts` or `service.js` file at the root of your module's directory. So, create the file `src/modules/brand/service.ts` with the following content: - -![Directory structure in module after adding the service](https://res.cloudinary.com/dza7lstvk/image/upload/v1732868984/Medusa%20Book/brand-dir-overview-3_jo7baj.jpg) - -```ts title="src/modules/brand/service.ts" highlights={serviceHighlights} -import { MedusaService } from "@medusajs/framework/utils" -import { Brand } from "./models/brand" - -class BrandModuleService extends MedusaService({ - Brand, -}) { - -} - -export default BrandModuleService -``` - -The `BrandModuleService` extends a class returned by `MedusaService` from the Modules SDK. This function generates a class with data-management methods for your module's data models. - -The `MedusaService` function receives an object of the module's data models as a parameter, and generates methods to manage those data models. So, the `BrandModuleService` now has methods like `createBrands` and `retrieveBrand` to manage the `Brand` data model. - -You'll use these methods in the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). - -Find a reference of all generated methods in [this guide](https://docs.medusajs.com/resources/service-factory-reference/index.html.md). - -*** - -## 4. Export Module Definition - -A module must export a definition that tells Medusa the name of the module and its main service. This definition is exported in an `index.ts` file at the module's root directory. - -So, to export the Brand Module's definition, create the file `src/modules/brand/index.ts` with the following content: - -![Directory structure in module after adding the definition file](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869045/Medusa%20Book/brand-dir-overview-4_nf8ymw.jpg) - -```ts title="src/modules/brand/index.ts" -import { Module } from "@medusajs/framework/utils" -import BrandModuleService from "./service" - -export const BRAND_MODULE = "brand" - -export default Module(BRAND_MODULE, { - service: BrandModuleService, -}) -``` - -You use `Module` from the Modules SDK to create the module's definition. It accepts two parameters: - -1. The module's name (`brand`). You'll use this name when you use this module in other customizations. -2. An object with a required property `service` indicating the module's main service. - -You export `BRAND_MODULE` to reference the module's name more reliably in other customizations. - -*** - -## 5. Add Module to Medusa's Configurations - -To start using your module, you must add it to Medusa's configurations in `medusa-config.ts`. - -The object passed to `defineConfig` in `medusa-config.ts` accepts a `modules` property, whose value is an array of modules to add to the application. So, add the following in `medusa-config.ts`: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "./src/modules/brand", - }, - ], -}) -``` - -The Brand Module is now added to your Medusa application. You'll start using it in the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md). - -*** - -## 6. Generate and Run Migrations - -A migration is a TypeScript or JavaScript file that defines database changes made by a module. Migrations ensure that your module is re-usable and removes friction when working in a team, making it easy to reflect changes across team members' databases. - -Learn more about migrations in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules#5-generate-migrations/index.html.md). - -[Medusa's CLI tool](https://docs.medusajs.com/resources/medusa-cli/index.html.md) allows you to generate migration files for your module, then run those migrations to reflect the changes in the database. So, run the following commands in your Medusa application's directory: - -```bash -npx medusa db:generate brand -npx medusa db:migrate -``` - -The `db:generate` command accepts as an argument the name of the module to generate the migrations for, and the `db:migrate` command runs all migrations that haven't been run yet in the Medusa application. - -*** - -## Next Step: Create Brand Workflow - -The Brand Module now creates a `brand` table in the database and provides a class to manage its records. - -In the next chapter, you'll implement the functionality to create a brand in a workflow. You'll then use that workflow in a later chapter to expose an endpoint that allows admin users to create a brand. - - -# Create Brands UI Route in Admin - -In this chapter, you'll add a UI route to the admin dashboard that shows all [brands](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) in a new page. You'll retrieve the brands from the server and display them in a table with pagination. - -### Prerequisites - -- [Brands Module](https://docs.medusajs.com/learn/customization/custom-features/modules/index.html.md) - -## 1. Get Brands API Route - -In a [previous chapter](https://docs.medusajs.com/learn/customization/extend-features/query-linked-records/index.html.md), you learned how to add an API route that retrieves brands and their products using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). You'll expand that API route to support pagination, so that on the admin dashboard you can show the brands in a paginated table. - -Replace or create the `GET` API route at `src/api/admin/brands/route.ts` with the following: - -```ts title="src/api/admin/brands/route.ts" highlights={apiRouteHighlights} -// other imports... -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const query = req.scope.resolve("query") - - const { - data: brands, - metadata: { count, take, skip } = {}, - } = await query.graph({ - entity: "brand", - ...req.queryConfig, - }) - - res.json({ - brands, - count, - limit: take, - offset: skip, - }) -} -``` - -In the API route, you use Query's `graph` method to retrieve the brands. In the method's object parameter, you spread the `queryConfig` property of the request object. This property holds configurations for pagination and retrieved fields. - -The query configurations are combined from default configurations, which you'll add next, and the request's query parameters: - -- `fields`: The fields to retrieve in the brands. -- `limit`: The maximum number of items to retrieve. -- `offset`: The number of items to skip before retrieving the returned items. - -When you pass pagination configurations to the `graph` method, the returned object has the pagination's details in a `metadata` property, whose value is an object having the following properties: - -- `count`: The total count of items. -- `take`: The maximum number of items returned in the `data` array. -- `skip`: The number of items skipped before retrieving the returned items. - -You return in the response the retrieved brands and the pagination configurations. - -Learn more about pagination with Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query#apply-pagination/index.html.md). - -*** - -## 2. Add Default Query Configurations - -Next, you'll set the default query configurations of the above API route and allow passing query parameters to change the configurations. - -Medusa provides a `validateAndTransformQuery` middleware that validates the accepted query parameters for a request and sets the default Query configuration. So, in `src/api/middlewares.ts`, add a new middleware configuration object: - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - validateAndTransformQuery, -} from "@medusajs/framework/http" -import { createFindParams } from "@medusajs/medusa/api/utils/validators" -// other imports... - -export const GetBrandsSchema = createFindParams() - -export default defineMiddlewares({ - routes: [ - // ... - { - matcher: "/admin/brands", - method: "GET", - middlewares: [ - validateAndTransformQuery( - GetBrandsSchema, - { - defaults: [ - "id", - "name", - "products.*", - ], - isList: true, - } - ), - ], - }, - - ], -}) -``` - -You apply the `validateAndTransformQuery` middleware on the `GET /admin/brands` API route. The middleware accepts two parameters: - -- A [Zod](https://zod.dev/) schema that a request's query parameters must satisfy. Medusa provides `createFindParams` that generates a Zod schema with the following properties: - - `fields`: A comma-separated string indicating the fields to retrieve. - - `limit`: The maximum number of items to retrieve. - - `offset`: The number of items to skip before retrieving the returned items. - - `order`: The name of the field to sort the items by. Learn more about sorting in [the API reference](https://docs.medusajs.com/api/admin#sort-order) -- An object of Query configurations having the following properties: - - `defaults`: An array of default fields and relations to retrieve. - - `isList`: Whether the API route returns a list of items. - -By applying the above middleware, you can pass pagination configurations to `GET /admin/brands`, which will return a paginated list of brands. You'll see how it works when you create the UI route. - -Learn more about using the `validateAndTransformQuery` middleware to configure Query in [this chapter](https://docs.medusajs.com/learn/fundamentals/module-links/query#request-query-configurations/index.html.md). - -*** - -## 3. Initialize JS SDK - -In your custom UI route, you'll retrieve the brands by sending a request to the Medusa server. Medusa has a [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) that simplifies sending requests to the core API route. - -If you didn't follow the [previous chapter](https://docs.medusajs.com/learn/customization/customize-admin/widget/index.html.md), create the file `src/admin/lib/sdk.ts` with the following content: - -![The directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414606/Medusa%20Book/brands-admin-dir-overview-1_jleg0t.jpg) - -```ts title="src/admin/lib/sdk.ts" -import Medusa from "@medusajs/js-sdk" - -export const sdk = new Medusa({ - baseUrl: import.meta.env.VITE_BACKEND_URL || "/", - debug: import.meta.env.DEV, - auth: { - type: "session", - }, -}) -``` - -You initialize the SDK passing it the following options: - -- `baseUrl`: The URL to the Medusa server. -- `debug`: Whether to enable logging debug messages. This should only be enabled in development. -- `auth.type`: The authentication method used in the client application, which is `session` in the Medusa Admin dashboard. - -Notice that you use `import.meta.env` to access environment variables in your customizations because the Medusa Admin is built on top of Vite. Learn more in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md). - -You can now use the SDK to send requests to the Medusa server. - -Learn more about the JS SDK and its options in [this reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). - -*** - -## 4. Add a UI Route to Show Brands - -You'll now add the UI route that shows the paginated list of brands. A UI route is a React component created in a `page.tsx` file under a sub-directory of `src/admin/routes`. The file's path relative to src/admin/routes determines its path in the dashboard. - -Learn more about UI routes in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/ui-routes/index.html.md). - -So, to add the UI route at the `localhost:9000/app/brands` path, create the file `src/admin/routes/brands/page.tsx` with the following content: - -![Directory structure of the Medusa application after adding the UI route.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733472011/Medusa%20Book/brands-admin-dir-overview-3_syytld.jpg) - -```tsx title="src/admin/routes/brands/page.tsx" highlights={uiRouteHighlights} -import { defineRouteConfig } from "@medusajs/admin-sdk" -import { TagSolid } from "@medusajs/icons" -import { - Container, -} from "@medusajs/ui" -import { useQuery } from "@tanstack/react-query" -import { sdk } from "../../lib/sdk" -import { useMemo, useState } from "react" - -const BrandsPage = () => { - // TODO retrieve brands - - return ( - - {/* TODO show brands */} - - ) -} - -export const config = defineRouteConfig({ - label: "Brands", - icon: TagSolid, -}) - -export default BrandsPage -``` - -A route's file must export the React component that will be rendered in the new page. It must be the default export of the file. You can also export configurations that add a link in the sidebar for the UI route. You create these configurations using `defineRouteConfig` from the Admin Extension SDK. - -So far, you only show a container. In admin customizations, use components from the [Medusa UI package](https://docs.medusajs.com/ui/index.html.md) to maintain a consistent user interface and design in the dashboard. - -### Retrieve Brands From API Route - -You'll now update the UI route to retrieve the brands from the API route you added earlier. - -First, add the following type in `src/admin/routes/brands/page.tsx`: - -```tsx title="src/admin/routes/brands/page.tsx" -type Brand = { - id: string - name: string -} -type BrandsResponse = { - brands: Brand[] - count: number - limit: number - offset: number -} -``` - -You define the type for a brand, and the type of expected response from the `GET /admin/brands` API route. - -To display the brands, you'll use Medusa UI's [DataTable](https://docs.medusajs.com/ui/components/data-table/index.html.md) component. So, add the following imports in `src/admin/routes/brands/page.tsx`: - -```tsx title="src/admin/routes/brands/page.tsx" -import { - // ... - Heading, - createDataTableColumnHelper, - DataTable, - DataTablePaginationState, - useDataTable, -} from "@medusajs/ui" -``` - -You import the `DataTable` component and the following utilities: - -- `createDataTableColumnHelper`: A utility to create columns for the data table. -- `DataTablePaginationState`: A type that holds the pagination state of the data table. -- `useDataTable`: A hook to initialize and configure the data table. - -You also import the `Heading` component to show a heading above the data table. - -Next, you'll define the table's columns. Add the following before the `BrandsPage` component: - -```tsx title="src/admin/routes/brands/page.tsx" -const columnHelper = createDataTableColumnHelper() - -const columns = [ - columnHelper.accessor("id", { - header: "ID", - }), - columnHelper.accessor("name", { - header: "Name", - }), -] -``` - -You use the `createDataTableColumnHelper` utility to create columns for the data table. You define two columns for the ID and name of the brands. - -Then, replace the `// TODO retrieve brands` in the component with the following: - -```tsx title="src/admin/routes/brands/page.tsx" highlights={queryHighlights} -const limit = 15 -const [pagination, setPagination] = useState({ - pageSize: limit, - pageIndex: 0, -}) -const offset = useMemo(() => { - return pagination.pageIndex * limit -}, [pagination]) - -const { data, isLoading } = useQuery({ - queryFn: () => sdk.client.fetch(`/admin/brands`, { - query: { - limit, - offset, - }, - }), - queryKey: [["brands", limit, offset]], -}) - -// TODO configure data table -``` - -To enable pagination in the `DataTable` component, you need to define a state variable of type `DataTablePaginationState`. It's an object having the following properties: - -- `pageSize`: The maximum number of items per page. You set it to `15`. -- `pageIndex`: A zero-based index of the current page of items. - -You also define a memoized `offset` value that indicates the number of items to skip before retrieving the current page's items. - -Then, you use `useQuery` from [Tanstack (React) Query](https://tanstack.com/query/latest) to query the Medusa server. Tanstack Query provides features like asynchronous state management and optimized caching. - -Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. - -In the `queryFn` function that executes the query, you use the JS SDK's `client.fetch` method to send a request to your custom API route. The first parameter is the route's path, and the second is an object of request configuration and data. You pass the query parameters in the `query` property. - -This sends a request to the [Get Brands API route](#1-get-brands-api-route), passing the pagination query parameters. Whenever `currentPage` is updated, the `offset` is also updated, which will send a new request to retrieve the brands for the current page. - -### Display Brands Table - -Finally, you'll display the brands in a data table. Replace the `// TODO configure data table` in the component with the following: - -```tsx title="src/admin/routes/brands/page.tsx" -const table = useDataTable({ - columns, - data: data?.brands || [], - getRowId: (row) => row.id, - rowCount: data?.count || 0, - isLoading, - pagination: { - state: pagination, - onPaginationChange: setPagination, - }, -}) -``` - -You use the `useDataTable` hook to initialize and configure the data table. It accepts an object with the following properties: - -- `columns`: The columns of the data table. You created them using the `createDataTableColumnHelper` utility. -- `data`: The brands to display in the table. -- `getRowId`: A function that returns a unique identifier for a row. -- `rowCount`: The total count of items. This is used to determine the number of pages. -- `isLoading`: A boolean indicating whether the data is loading. -- `pagination`: An object to configure pagination. It accepts the following properties: - - `state`: The pagination state of the data table. - - `onPaginationChange`: A function to update the pagination state. - -Then, replace the `{/* TODO show brands */}` in the return statement with the following: - -```tsx title="src/admin/routes/brands/page.tsx" - - - Brands - - - - -``` - -This renders the data table that shows the brands with pagination. The `DataTable` component accepts the `instance` prop, which is the object returned by the `useDataTable` hook. - -*** - -## Test it Out - -To test out the UI route, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open the admin dashboard at `http://localhost:9000/app`. After you log in, you'll find a new "Brands" sidebar item. Click on it to see the brands in your store. You can also go to `http://localhost:9000/app/brands` to see the page. - -![A new sidebar item is added for the new brands UI route. The UI route shows the table of brands with pagination.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733421074/Medusa%20Book/Screenshot_2024-12-05_at_7.46.52_PM_slcdqd.png) - -*** - -## Summary - -By following the previous chapters, you: - -- Injected a widget into the product details page to show the product's brand. -- Created a UI route in the Medusa Admin that shows the list of brands. - -*** - -## Next Steps: Integrate Third-Party Systems - -Your customizations often span across systems, where you need to retrieve data or perform operations in a third-party system. - -In the next chapters, you'll learn about the concepts that facilitate integrating third-party systems in your application. You'll integrate a dummy third-party system and sync the brands between it and the Medusa application. - - -# Guide: Add Product's Brand Widget in Admin - -In this chapter, you'll customize the product details page of the Medusa Admin dashboard to show the product's [brand](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md). You'll create a widget that is injected into a pre-defined zone in the page, and in the widget you'll retrieve the product's brand from the server and display it. - -### Prerequisites - -- [Brands linked to products](https://docs.medusajs.com/learn/customization/extend-features/define-link/index.html.md) - -## 1. Initialize JS SDK - -In your custom widget, you'll retrieve the product's brand by sending a request to the Medusa server. Medusa has a [JS SDK](https://docs.medusajs.com/resources/js-sdk/index.html.md) that simplifies sending requests to the server's API routes. - -So, you'll start by configuring the JS SDK. Create the file `src/admin/lib/sdk.ts` with the following content: - -![The directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414606/Medusa%20Book/brands-admin-dir-overview-1_jleg0t.jpg) - -```ts title="src/admin/lib/sdk.ts" -import Medusa from "@medusajs/js-sdk" - -export const sdk = new Medusa({ - baseUrl: import.meta.env.VITE_BACKEND_URL || "/", - debug: import.meta.env.DEV, - auth: { - type: "session", - }, -}) -``` - -You initialize the SDK passing it the following options: - -- `baseUrl`: The URL to the Medusa server. -- `debug`: Whether to enable logging debug messages. This should only be enabled in development. -- `auth.type`: The authentication method used in the client application, which is `session` in the Medusa Admin dashboard. - -Notice that you use `import.meta.env` to access environment variables in your customizations because the Medusa Admin is built on top of Vite. Learn more in [this chapter](https://docs.medusajs.com/learn/fundamentals/admin/environment-variables/index.html.md). - -You can now use the SDK to send requests to the Medusa server. - -Learn more about the JS SDK and its options in [this reference](https://docs.medusajs.com/resources/js-sdk/index.html.md). - -*** - -## 2. Add Widget to Product Details Page - -You'll now add a widget to the product-details page. A widget is a React component that's injected into pre-defined zones in the Medusa Admin dashboard. It's created in a `.tsx` file under the `src/admin/widgets` directory. - -Learn more about widgets in [this documentation](https://docs.medusajs.com/learn/fundamentals/admin/widgets/index.html.md). - -To create a widget that shows a product's brand in its details page, create the file `src/admin/widgets/product-brand.tsx` with the following content: - -![Directory structure of the Medusa application after adding the widget](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414684/Medusa%20Book/brands-admin-dir-overview-2_eq5xhi.jpg) - -```tsx title="src/admin/widgets/product-brand.tsx" highlights={highlights} -import { defineWidgetConfig } from "@medusajs/admin-sdk" -import { DetailWidgetProps, AdminProduct } from "@medusajs/framework/types" -import { clx, Container, Heading, Text } from "@medusajs/ui" -import { useQuery } from "@tanstack/react-query" -import { sdk } from "../lib/sdk" - -type AdminProductBrand = AdminProduct & { - brand?: { - id: string - name: string - } -} - -const ProductBrandWidget = ({ - data: product, -}: DetailWidgetProps) => { - const { data: queryResult } = useQuery({ - queryFn: () => sdk.admin.product.retrieve(product.id, { - fields: "+brand.*", - }), - queryKey: [["product", product.id]], - }) - const brandName = (queryResult?.product as AdminProductBrand)?.brand?.name - - return ( - -
-
- Brand -
-
-
- - Name - - - - {brandName || "-"} - -
- - ) -} - -export const config = defineWidgetConfig({ - zone: "product.details.before", -}) - -export default ProductBrandWidget -``` - -A widget's file must export: - -- A React component to be rendered in the specified injection zone. The component must be the file's default export. -- A configuration object created with `defineWidgetConfig` from the Admin Extension SDK. The function receives an object as a parameter that has a `zone` property, whose value is the zone to inject the widget to. - -Since the widget is injected at the top of the product details page, the widget receives the product's details as a parameter. - -In the widget, you use [Tanstack (React) Query](https://tanstack.com/query/latest) to query the Medusa server. Tanstack Query provides features like asynchronous state management and optimized caching. In the `queryFn` function that executes the query, you use the JS SDK to send a request to the [Get Product API Route](https://docs.medusajs.com/api/admin#products_getproductsid), passing `+brand.*` in the `fields` query parameter to retrieve the product's brand. - -Do not install Tanstack Query as that will cause unexpected errors in your development. If you prefer installing it for better auto-completion in your code editor, make sure to install `v5.64.2` as a development dependency. - -You then render a section that shows the brand's name. In admin customizations, use components from the [Medusa UI package](https://docs.medusajs.com/ui/index.html.md) to maintain a consistent user interface and design in the dashboard. - -*** - -## Test it Out - -To test out your widget, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open the admin dashboard at `http://localhost:9000/app`. After you log in, open the page of a product that has a brand. You'll see a new section at the top showing the brand's name. - -![The widget is added as the first section of the product details page.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733414415/Medusa%20Book/Screenshot_2024-12-05_at_5.59.25_PM_y85m14.png) - -*** - -## Admin Components Guides - -When building your widget, you may need more complicated components. For example, you may add a form to the above widget to set the product's brand. - -The [Admin Components guides](https://docs.medusajs.com/resources/admin-components/index.html.md) show you how to build and use common components in the Medusa Admin, such as forms, tables, JSON data viewer, and more. The components in the guides also follow the Medusa Admin's design convention. - -*** - -## Next Chapter: Add UI Route for Brands - -In the next chapter, you'll add a UI route that displays the list of brands in your application and allows admin users. - - -# Guide: Create Brand Workflow - -This chapter builds on the work from the [previous chapter](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) where you created a Brand Module. - -After adding custom modules to your application, you build commerce features around them using workflows. A workflow is a series of queries and actions, called steps, that complete a task spanning across modules. You construct a workflow similar to a regular function, but it's a special function that allows you to define roll-back logic, retry configurations, and more advanced features. - -The workflow you'll create in this chapter will use the Brand Module's service to implement the feature of creating a brand. In the [next chapter](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md), you'll expose an API route that allows admin users to create a brand, and you'll use this workflow in the route's implementation. - -Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). - -### Prerequisites - -- [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) - -*** - -## 1. Create createBrandStep - -A workflow consists of a series of steps, each step created in a TypeScript or JavaScript file under the `src/workflows` directory. A step is defined using `createStep` from the Workflows SDK - -The workflow you're creating in this guide has one step to create the brand. So, create the file `src/workflows/create-brand.ts` with the following content: - -![Directory structure in the Medusa project after adding the file for createBrandStep](https://res.cloudinary.com/dza7lstvk/image/upload/v1732869184/Medusa%20Book/brand-workflow-dir-overview-1_fjvf5j.jpg) - -```ts title="src/workflows/create-brand.ts" -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { BRAND_MODULE } from "../modules/brand" -import BrandModuleService from "../modules/brand/service" - -export type CreateBrandStepInput = { - name: string -} - -export const createBrandStep = createStep( - "create-brand-step", - async (input: CreateBrandStepInput, { container }) => { - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - const brand = await brandModuleService.createBrands(input) - - return new StepResponse(brand, brand.id) - } -) -``` - -You create a `createBrandStep` using the `createStep` function. It accepts the step's unique name as a first parameter, and the step's function as a second parameter. - -The step function receives two parameters: input passed to the step when it's invoked, and an object of general context and configurations. This object has a `container` property, which is the Medusa container. - -The [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) is a registry of Framework and commerce tools accessible in your customizations, such as a workflow's step. The Medusa application registers the services of core and custom modules in the container, allowing you to resolve and use them. - -So, In the step function, you use the Medusa container to resolve the Brand Module's service and use its generated `createBrands` method, which accepts an object of brands to create. - -Learn more about the generated `create` method's usage in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/create/index.html.md). - -A step must return an instance of `StepResponse`. Its first parameter is the data returned by the step, and the second is the data passed to the compensation function, which you'll learn about next. - -### Add Compensation Function to Step - -You define for each step a compensation function that's executed when an error occurs in the workflow. The compensation function defines the logic to roll-back the changes made by the step. This ensures your data remains consistent if an error occurs, which is especially useful when you integrate third-party services. - -Learn more about the compensation function in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). - -To add a compensation function to the `createBrandStep`, pass it as a third parameter to `createStep`: - -```ts title="src/workflows/create-brand.ts" -export const createBrandStep = createStep( - // ... - async (id: string, { container }) => { - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - await brandModuleService.deleteBrands(id) - } -) -``` - -The compensation function's first parameter is the brand's ID which you passed as a second parameter to the step function's returned `StepResponse`. It also accepts a context object with a `container` property as a second parameter, similar to the step function. - -In the compensation function, you resolve the Brand Module's service from the Medusa container, then use its generated `deleteBrands` method to delete the brand created by the step. This method accepts the ID of the brand to delete. - -Learn more about the generated `delete` method's usage in [this reference](https://docs.medusajs.com/resources/service-factory-reference/methods/delete/index.html.md). - -So, if an error occurs during the workflow's execution, the brand that was created by the step is deleted to maintain data consistency. - -*** - -## 2. Create createBrandWorkflow - -You can now create the workflow that runs the `createBrandStep`. A workflow is created in a TypeScript or JavaScript file under the `src/workflows` directory. In the file, you use `createWorkflow` from the Workflows SDK to create the workflow. - -Add the following content in the same `src/workflows/create-brand.ts` file: - -```ts title="src/workflows/create-brand.ts" -// other imports... -import { - // ... - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -// ... - -type CreateBrandWorkflowInput = { - name: string -} - -export const createBrandWorkflow = createWorkflow( - "create-brand", - (input: CreateBrandWorkflowInput) => { - const brand = createBrandStep(input) - - return new WorkflowResponse(brand) - } -) -``` - -You create the `createBrandWorkflow` using the `createWorkflow` function. This function accepts two parameters: the workflow's unique name, and the workflow's constructor function holding the workflow's implementation. - -The constructor function accepts the workflow's input as a parameter. In the function, you invoke the `createBrandStep` you created in the previous step to create a brand. - -A workflow must return an instance of `WorkflowResponse`. It accepts as a parameter the data to return to the workflow's executor. - -*** - -## Next Steps: Expose Create Brand API Route - -You now have a `createBrandWorkflow` that you can execute to create a brand. - -In the next chapter, you'll add an API route that allows admin users to create a brand. You'll learn how to create the API route, and execute in it the workflow you implemented in this chapter. - - -# Guide: Sync Brands from Medusa to Third-Party - -In the [previous chapter](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md), you created a CMS Module that integrates a dummy third-party system. You can now perform actions using that module within your custom flows. - -In another previous chapter, you [added a workflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) that creates a brand. After integrating the CMS, you want to sync that brand to the third-party system as well. - -Medusa has an event system that emits events when an operation is performed. It allows you to listen to those events and perform an asynchronous action in a function called a [subscriber](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). This is useful to perform actions that aren't integral to the original flow, such as syncing data to a third-party system. - -Learn more about Medusa's event system and subscribers in [this chapter](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). - -In this chapter, you'll modify the `createBrandWorkflow` you created before to emit a custom event that indicates a brand was created. Then, you'll listen to that event in a subscriber to sync the brand to the third-party CMS. You'll implement the sync logic within a workflow that you execute in the subscriber. - -### Prerequisites - -- [createBrandWorkflow](https://docs.medusajs.com/learn/customization/custom-features/workflow/index.html.md) -- [CMS Module](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) - -## 1. Emit Event in createBrandWorkflow - -Since syncing the brand to the third-party system isn't integral to creating a brand, you'll emit a custom event indicating that a brand was created. - -Medusa provides an `emitEventStep` that allows you to emit an event in your workflows. So, in the `createBrandWorkflow` defined in `src/workflows/create-brand.ts`, use the `emitEventStep` helper step after the `createBrandStep`: - -```ts title="src/workflows/create-brand.ts" highlights={eventHighlights} -// other imports... -import { - emitEventStep, -} from "@medusajs/medusa/core-flows" - -// ... - -export const createBrandWorkflow = createWorkflow( - "create-brand", - (input: CreateBrandInput) => { - // ... - - emitEventStep({ - eventName: "brand.created", - data: { - id: brand.id, - }, - }) - - return new WorkflowResponse(brand) - } -) -``` - -The `emitEventStep` accepts an object parameter having two properties: - -- `eventName`: The name of the event to emit. You'll use this name later to listen to the event in a subscriber. -- `data`: The data payload to emit with the event. This data is passed to subscribers that listen to the event. You add the brand's ID to the data payload, informing the subscribers which brand was created. - -You'll learn how to handle this event in a later step. - -*** - -## 2. Create Sync to Third-Party System Workflow - -The subscriber that will listen to the `brand.created` event will sync the created brand to the third-party CMS. So, you'll implement the syncing logic in a workflow, then execute the workflow in the subscriber. - -Workflows have a built-in durable execution engine that helps you complete tasks spanning multiple systems. Also, their rollback mechanism ensures that data is consistent across systems even when errors occur during execution. - -Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). - -You'll create a `syncBrandToSystemWorkflow` that has two steps: - -- `useQueryGraphStep`: a step that Medusa provides to retrieve data using [Query](https://docs.medusajs.com/learn/fundamentals/module-links/query/index.html.md). You'll use this to retrieve the brand's details using its ID. -- `syncBrandToCmsStep`: a step that you'll create to sync the brand to the CMS. - -### syncBrandToCmsStep - -To implement the step that syncs the brand to the CMS, create the file `src/workflows/sync-brands-to-cms.ts` with the following content: - -![Directory structure of the Medusa application after adding the file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733493547/Medusa%20Book/cms-dir-overview-4_u5t0ug.jpg) - -```ts title="src/workflows/sync-brands-to-cms.ts" highlights={syncStepHighlights} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { createStep, StepResponse } from "@medusajs/framework/workflows-sdk" -import { InferTypeOf } from "@medusajs/framework/types" -import { Brand } from "../modules/brand/models/brand" -import { CMS_MODULE } from "../modules/cms" -import CmsModuleService from "../modules/cms/service" - -type SyncBrandToCmsStepInput = { - brand: InferTypeOf -} - -const syncBrandToCmsStep = createStep( - "sync-brand-to-cms", - async ({ brand }: SyncBrandToCmsStepInput, { container }) => { - const cmsModuleService: CmsModuleService = container.resolve(CMS_MODULE) - - await cmsModuleService.createBrand(brand) - - return new StepResponse(null, brand.id) - }, - async (id, { container }) => { - if (!id) { - return - } - - const cmsModuleService: CmsModuleService = container.resolve(CMS_MODULE) - - await cmsModuleService.deleteBrand(id) - } -) -``` - -You create the `syncBrandToCmsStep` that accepts a brand as an input. In the step, you resolve the CMS Module's service from the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) and use its `createBrand` method. This method will create the brand in the third-party CMS. - -You also pass the brand's ID to the step's compensation function. In this function, you delete the brand in the third-party CMS if an error occurs during the workflow's execution. - -Learn more about compensation functions in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). - -### Create Workflow - -You can now create the workflow that uses the above step. Add the workflow to the same `src/workflows/sync-brands-to-cms.ts` file: - -```ts title="src/workflows/sync-brands-to-cms.ts" highlights={syncWorkflowHighlights} -// other imports... -import { - // ... - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -type SyncBrandToCmsWorkflowInput = { - id: string -} - -export const syncBrandToCmsWorkflow = createWorkflow( - "sync-brand-to-cms", - (input: SyncBrandToCmsWorkflowInput) => { - // @ts-ignore - const { data: brands } = useQueryGraphStep({ - entity: "brand", - fields: ["*"], - filters: { - id: input.id, - }, - options: { - throwIfKeyNotFound: true, - }, - }) - - syncBrandToCmsStep({ - brand: brands[0], - } as SyncBrandToCmsStepInput) - - return new WorkflowResponse({}) - } -) -``` - -You create a `syncBrandToCmsWorkflow` that accepts the brand's ID as input. The workflow has the following steps: - -- `useQueryGraphStep`: Retrieve the brand's details using Query. You pass the brand's ID as a filter, and set the `throwIfKeyNotFound` option to true so that the step throws an error if a brand with the specified ID doesn't exist. -- `syncBrandToCmsStep`: Create the brand in the third-party CMS. - -You'll execute this workflow in the subscriber next. - -Learn more about `useQueryGraphStep` in [this reference](https://docs.medusajs.com/resources/references/helper-steps/useQueryGraphStep/index.html.md). - -*** - -## 3. Handle brand.created Event - -You now have a workflow with the logic to sync a brand to the CMS. You need to execute this workflow whenever the `brand.created` event is emitted. So, you'll create a subscriber that listens to and handle the event. - -Subscribers are created in a TypeScript or JavaScript file under the `src/subscribers` directory. So, create the file `src/subscribers/brand-created.ts` with the following content: - -![Directory structure of the Medusa application after adding the subscriber](https://res.cloudinary.com/dza7lstvk/image/upload/v1733493774/Medusa%20Book/cms-dir-overview-5_iqqwvg.jpg) - -```ts title="src/subscribers/brand-created.ts" highlights={subscriberHighlights} -import type { - SubscriberConfig, - SubscriberArgs, -} from "@medusajs/framework" -import { syncBrandToCmsWorkflow } from "../workflows/sync-brands-to-cms" - -export default async function brandCreatedHandler({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - await syncBrandToCmsWorkflow(container).run({ - input: data, - }) -} - -export const config: SubscriberConfig = { - event: "brand.created", -} -``` - -A subscriber file must export: - -- The asynchronous function that's executed when the event is emitted. This must be the file's default export. -- An object that holds the subscriber's configurations. It has an `event` property that indicates the name of the event that the subscriber is listening to. - -The subscriber function accepts an object parameter that has two properties: - -- `event`: An object of event details. Its `data` property holds the event's data payload, which is the brand's ID. -- `container`: The Medusa container used to resolve Framework and commerce tools. - -In the function, you execute the `syncBrandToCmsWorkflow`, passing it the data payload as an input. So, everytime a brand is created, Medusa will execute this function, which in turn executes the workflow to sync the brand to the CMS. - -Learn more about subscribers in [this chapter](https://docs.medusajs.com/learn/fundamentals/events-and-subscribers/index.html.md). - -*** - -## Test it Out - -To test the subscriber and workflow out, you'll use the [Create Brand API route](https://docs.medusajs.com/learn/customization/custom-features/api-route/index.html.md) you created in a previous chapter. - -First, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Since the `/admin/brands` API route has a `/admin` prefix, it's only accessible by authenticated admin users. So, to retrieve an authenticated token of your admin user, send a `POST` request to the `/auth/user/emailpass` API Route: - -```bash -curl -X POST 'http://localhost:9000/auth/user/emailpass' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "email": "admin@medusa-test.com", - "password": "supersecret" -}' -``` - -Make sure to replace the email and password with your admin user's credentials. - -Don't have an admin user? Refer to [this guide](https://docs.medusajs.com/learn/installation#create-medusa-admin-user/index.html.md). - -Then, send a `POST` request to `/admin/brands`, passing the token received from the previous request in the `Authorization` header: - -```bash -curl -X POST 'http://localhost:9000/admin/brands' \ --H 'Content-Type: application/json' \ --H 'Authorization: Bearer {token}' \ ---data '{ - "name": "Acme" -}' -``` - -This request returns the created brand. If you check the logs, you'll find the `brand.created` event was emitted, and that the request to the third-party system was simulated: - -```plain -info: Processing brand.created which has 1 subscribers -http: POST /admin/brands ← - (200) - 16.418 ms -info: Sending a POST request to /brands. -info: Request Data: { - "id": "01JEDWENYD361P664WRQPMC3J8", - "name": "Acme", - "created_at": "2024-12-06T11:42:32.909Z", - "updated_at": "2024-12-06T11:42:32.909Z", - "deleted_at": null -} -info: API Key: "123" -``` - -*** - -## Next Chapter: Sync Brand from Third-Party CMS to Medusa - -You can also automate syncing data from a third-party system to Medusa at a regular interval. In the next chapter, you'll learn how to sync brands from the third-party CMS to Medusa once a day. - - -# Guide: Schedule Syncing Brands from Third-Party - -In the previous chapters, you've [integrated a third-party CMS](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) and implemented the logic to [sync created brands](https://docs.medusajs.com/learn/customization/integrate-systems/handle-event/index.html.md) from Medusa to the CMS. - -However, when you integrate a third-party system, you want the data to be in sync between the Medusa application and the system. One way to do so is by automatically syncing the data once a day. - -You can create an action to be automatically executed at a specified interval using scheduled jobs. A scheduled job is an asynchronous function with a specified schedule of when the Medusa application should run it. Scheduled jobs are useful to automate repeated tasks. - -Learn more about scheduled jobs in [this chapter](https://docs.medusajs.com/learn/fundamentals/scheduled-jobs/index.html.md). - -In this chapter, you'll create a scheduled job that triggers syncing the brands from the third-party CMS to Medusa once a day. You'll implement the syncing logic in a workflow, and execute that workflow in the scheduled job. - -### Prerequisites - -- [CMS Module](https://docs.medusajs.com/learn/customization/integrate-systems/service/index.html.md) - -*** - -## 1. Implement Syncing Workflow - -You'll start by implementing the syncing logic in a workflow, then execute the workflow later in the scheduled job. - -Workflows have a built-in durable execution engine that helps you complete tasks spanning multiple systems. Also, their rollback mechanism ensures that data is consistent across systems even when errors occur during execution. - -Learn more about workflows in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/index.html.md). - -This workflow will have three steps: - -1. `retrieveBrandsFromCmsStep` to retrieve the brands from the CMS. -2. `createBrandsStep` to create the brands retrieved in the first step that don't exist in Medusa. -3. `updateBrandsStep` to update the brands retrieved in the first step that exist in Medusa. - -### retrieveBrandsFromCmsStep - -To create the step that retrieves the brands from the third-party CMS, create the file `src/workflows/sync-brands-from-cms.ts` with the following content: - -![Directory structure of the Medusa application after creating the file.](https://res.cloudinary.com/dza7lstvk/image/upload/v1733494196/Medusa%20Book/cms-dir-overview-6_z1omsi.jpg) - -```ts title="src/workflows/sync-brands-from-cms.ts" collapsibleLines="1-7" expandButtonLabel="Show Imports" -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import CmsModuleService from "../modules/cms/service" -import { CMS_MODULE } from "../modules/cms" - -const retrieveBrandsFromCmsStep = createStep( - "retrieve-brands-from-cms", - async (_, { container }) => { - const cmsModuleService: CmsModuleService = container.resolve( - CMS_MODULE - ) - - const brands = await cmsModuleService.retrieveBrands() - - return new StepResponse(brands) - } -) -``` - -You create a `retrieveBrandsFromCmsStep` that resolves the CMS Module's service and uses its `retrieveBrands` method to retrieve the brands in the CMS. You return those brands in the step's response. - -### createBrandsStep - -The brands retrieved in the first step may have brands that don't exist in Medusa. So, you'll create a step that creates those brands. Add the step to the same `src/workflows/sync-brands-from-cms.ts` file: - -```ts title="src/workflows/sync-brands-from-cms.ts" highlights={createBrandsHighlights} collapsibleLines="1-8" expandButtonLabel="Show Imports" -// other imports... -import BrandModuleService from "../modules/brand/service" -import { BRAND_MODULE } from "../modules/brand" - -// ... - -type CreateBrand = { - name: string -} - -type CreateBrandsInput = { - brands: CreateBrand[] -} - -export const createBrandsStep = createStep( - "create-brands-step", - async (input: CreateBrandsInput, { container }) => { - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - const brands = await brandModuleService.createBrands(input.brands) - - return new StepResponse(brands, brands) - }, - async (brands, { container }) => { - if (!brands) { - return - } - - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - await brandModuleService.deleteBrands(brands.map((brand) => brand.id)) - } -) -``` - -The `createBrandsStep` accepts the brands to create as an input. It resolves the [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md)'s service and uses the generated `createBrands` method to create the brands. - -The step passes the created brands to the compensation function, which deletes those brands if an error occurs during the workflow's execution. - -Learn more about compensation functions in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md). - -### Update Brands Step - -The brands retrieved in the first step may also have brands that exist in Medusa. So, you'll create a step that updates their details to match that of the CMS. Add the step to the same `src/workflows/sync-brands-from-cms.ts` file: - -```ts title="src/workflows/sync-brands-from-cms.ts" highlights={updateBrandsHighlights} -// ... - -type UpdateBrand = { - id: string - name: string -} - -type UpdateBrandsInput = { - brands: UpdateBrand[] -} - -export const updateBrandsStep = createStep( - "update-brands-step", - async ({ brands }: UpdateBrandsInput, { container }) => { - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - const prevUpdatedBrands = await brandModuleService.listBrands({ - id: brands.map((brand) => brand.id), - }) - - const updatedBrands = await brandModuleService.updateBrands(brands) - - return new StepResponse(updatedBrands, prevUpdatedBrands) - }, - async (prevUpdatedBrands, { container }) => { - if (!prevUpdatedBrands) { - return - } - - const brandModuleService: BrandModuleService = container.resolve( - BRAND_MODULE - ) - - await brandModuleService.updateBrands(prevUpdatedBrands) - } -) -``` - -The `updateBrandsStep` receives the brands to update in Medusa. In the step, you retrieve the brand's details in Medusa before the update to pass them to the compensation function. You then update the brands using the Brand Module's `updateBrands` generated method. - -In the compensation function, which receives the brand's old data, you revert the update using the same `updateBrands` method. - -### Create Workflow - -Finally, you'll create the workflow that uses the above steps to sync the brands from the CMS to Medusa. Add to the same `src/workflows/sync-brands-from-cms.ts` file the following: - -```ts title="src/workflows/sync-brands-from-cms.ts" -// other imports... -import { - // ... - createWorkflow, - transform, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -// ... - -export const syncBrandsFromCmsWorkflow = createWorkflow( - "sync-brands-from-system", - () => { - const brands = retrieveBrandsFromCmsStep() - - // TODO create and update brands - } -) -``` - -In the workflow, you only use the `retrieveBrandsFromCmsStep` for now, which retrieves the brands from the third-party CMS. - -Next, you need to identify which brands must be created or updated. Since workflows are constructed internally and are only evaluated during execution, you can't access values to perform data manipulation directly. Instead, use [transform](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md) from the Workflows SDK that gives you access to the real-time values of the data, allowing you to create new variables using those values. - -Learn more about data manipulation using `transform` in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). - -So, replace the `TODO` with the following: - -```ts title="src/workflows/sync-brands-from-cms.ts" -const { toCreate, toUpdate } = transform( - { - brands, - }, - (data) => { - const toCreate: CreateBrand[] = [] - const toUpdate: UpdateBrand[] = [] - - data.brands.forEach((brand) => { - if (brand.external_id) { - toUpdate.push({ - id: brand.external_id as string, - name: brand.name as string, - }) - } else { - toCreate.push({ - name: brand.name as string, - }) - } - }) - - return { toCreate, toUpdate } - } -) - -// TODO create and update the brands -``` - -`transform` accepts two parameters: - -1. The data to be passed to the function in the second parameter. -2. A function to execute only when the workflow is executed. Its return value can be consumed by the rest of the workflow. - -In `transform`'s function, you loop over the brands array to check which should be created or updated. This logic assumes that a brand in the CMS has an `external_id` property whose value is the brand's ID in Medusa. - -You now have the list of brands to create and update. So, replace the new `TODO` with the following: - -```ts title="src/workflows/sync-brands-from-cms.ts" -const created = createBrandsStep({ brands: toCreate }) -const updated = updateBrandsStep({ brands: toUpdate }) - -return new WorkflowResponse({ - created, - updated, -}) -``` - -You first run the `createBrandsStep` to create the brands that don't exist in Medusa, then the `updateBrandsStep` to update the brands that exist in Medusa. You pass the arrays returned by `transform` as the inputs for the steps. - -Finally, you return an object of the created and updated brands. You'll execute this workflow in the scheduled job next. - -*** - -## 2. Schedule Syncing Task - -You now have the workflow to sync the brands from the CMS to Medusa. Next, you'll create a scheduled job that runs this workflow once a day to ensure the data between Medusa and the CMS are always in sync. - -A scheduled job is created in a TypeScript or JavaScript file under the `src/jobs` directory. So, create the file `src/jobs/sync-brands-from-cms.ts` with the following content: - -![Directory structure of the Medusa application after adding the scheduled job](https://res.cloudinary.com/dza7lstvk/image/upload/v1733494592/Medusa%20Book/cms-dir-overview-7_dkjb9s.jpg) - -```ts title="src/jobs/sync-brands-from-cms.ts" -import { MedusaContainer } from "@medusajs/framework/types" -import { syncBrandsFromCmsWorkflow } from "../workflows/sync-brands-from-cms" - -export default async function (container: MedusaContainer) { - const logger = container.resolve("logger") - - const { result } = await syncBrandsFromCmsWorkflow(container).run() - - logger.info( - `Synced brands from third-party system: ${ - result.created.length - } brands created and ${result.updated.length} brands updated.`) -} - -export const config = { - name: "sync-brands-from-system", - schedule: "0 0 * * *", // change to * * * * * for debugging -} -``` - -A scheduled job file must export: - -- An asynchronous function that will be executed at the specified schedule. This function must be the file's default export. -- An object of scheduled jobs configuration. It has two properties: - - `name`: A unique name for the scheduled job. - - `schedule`: A string that holds a [cron expression](https://crontab.guru/) indicating the schedule to run the job. - -The scheduled job function accepts as a parameter the [Medusa container](https://docs.medusajs.com/learn/fundamentals/medusa-container/index.html.md) used to resolve Framework and commerce tools. You then execute the `syncBrandsFromCmsWorkflow` and use its result to log how many brands were created or updated. - -Based on the cron expression specified in `config.schedule`, Medusa will run the scheduled job every day at midnight. You can also change it to `* * * * *` to run it every minute for easier debugging. - -*** - -## Test it Out - -To test out the scheduled job, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -If you set the schedule to `* * * * *` for debugging, the scheduled job will run in a minute. You'll see in the logs how many brands were created or updated. - -*** - -## Summary - -By following the previous chapters, you utilized the Medusa Framework and orchestration tools to perform and automate tasks that span across systems. - -With Medusa, you can integrate any service from your commerce ecosystem with ease. You don't have to set up separate applications to manage your different customizations, or worry about data inconsistency across systems. Your efforts only go into implementing the business logic that ties your systems together. - - -# Guide: Integrate Third-Party Brand System - -In the previous chapters, you've created a [Brand Module](https://docs.medusajs.com/learn/customization/custom-features/module/index.html.md) that adds brands to your application. In this chapter, you'll integrate a dummy Content-Management System (CMS) in a new module. The module's service will provide methods to retrieve and manage brands in the CMS. You'll later use this service to sync data from and to the CMS. - -Learn more about modules in [this chapter](https://docs.medusajs.com/learn/fundamentals/modules/index.html.md). - -## 1. Create Module Directory - -You'll integrate the third-party system in a new CMS Module. So, create the directory `src/modules/cms` that will hold the module's resources. - -![Directory structure after adding the directory for the CMS Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492447/Medusa%20Book/cms-dir-overview-1_gasguk.jpg) - -*** - -## 2. Create Module Service - -Next, you'll create the module's service. It will provide methods to connect and perform actions with the third-party system. - -Create the CMS Module's service at `src/modules/cms/service.ts` with the following content: - -![Directory structure after adding the CMS Module's service](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492583/Medusa%20Book/cms-dir-overview-2_zwcwh3.jpg) - -```ts title="src/modules/cms/service.ts" highlights={serviceHighlights} -import { Logger, ConfigModule } from "@medusajs/framework/types" - -export type ModuleOptions = { - apiKey: string -} - -type InjectedDependencies = { - logger: Logger - configModule: ConfigModule -} - -class CmsModuleService { - private options_: ModuleOptions - private logger_: Logger - - constructor({ logger }: InjectedDependencies, options: ModuleOptions) { - this.logger_ = logger - this.options_ = options - - // TODO initialize SDK - } -} - -export default CmsModuleService -``` - -You create a `CmsModuleService` that will hold the methods to connect to the third-party CMS. A service's constructor accepts two parameters: - -1. The module's container. Since a module is [isolated](https://docs.medusajs.com/learn/fundamentals/modules/isolation/index.html.md), it has a [local container](https://docs.medusajs.com/learn/fundamentals/modules/container/index.html.md) different than the Medusa container you use in other customizations. This container holds Framework tools like the [Logger utility](https://docs.medusajs.com/learn/debugging-and-testing/logging/index.html.md) and resources within the module. -2. Options passed to the module when it's later added in Medusa's configurations. These options are useful to pass secret keys or configurations that ensure your module is re-usable across applications. For the CMS Module, you accept the API key to connect to the dummy CMS as an option. - -When integrating a third-party system that has a Node.js SDK or client, you can initialize that client in the constructor to be used in the service's methods. - -### Integration Methods - -Next, you'll add methods that simulate sending requests to a third-party CMS. You'll use these methods later to sync brands from and to the CMS. - -Add the following methods in the `CmsModuleService`: - -```ts title="src/modules/cms/service.ts" highlights={methodsHighlights} -export class CmsModuleService { - // ... - - // a dummy method to simulate sending a request, - // in a realistic scenario, you'd use an SDK, fetch, or axios clients - private async sendRequest(url: string, method: string, data?: any) { - this.logger_.info(`Sending a ${method} request to ${url}.`) - this.logger_.info(`Request Data: ${JSON.stringify(data, null, 2)}`) - this.logger_.info(`API Key: ${JSON.stringify(this.options_.apiKey, null, 2)}`) - } - - async createBrand(brand: Record) { - await this.sendRequest("/brands", "POST", brand) - } - - async deleteBrand(id: string) { - await this.sendRequest(`/brands/${id}`, "DELETE") - } - - async retrieveBrands(): Promise[]> { - await this.sendRequest("/brands", "GET") - - return [] - } -} -``` - -The `sendRequest` method sends requests to the third-party CMS. Since this guide isn't using a real CMS, it only simulates the sending by logging messages in the terminal. - -You also add three methods that use the `sendRequest` method: - -- `createBrand` that creates a brand in the third-party system. -- `deleteBrand` that deletes the brand in the third-party system. -- `retrieveBrands` to retrieve a brand from the third-party system. - -*** - -## 3. Export Module Definition - -After creating the module's service, you'll export the module definition indicating the module's name and service. - -Create the file `src/modules/cms/index.ts` with the following content: - -![Directory structure of the Medusa application after adding the module definition file](https://res.cloudinary.com/dza7lstvk/image/upload/v1733492991/Medusa%20Book/cms-dir-overview-3_b0byks.jpg) - -```ts title="src/modules/cms/index.ts" -import { Module } from "@medusajs/framework/utils" -import CmsModuleService from "./service" - -export const CMS_MODULE = "cms" - -export default Module(CMS_MODULE, { - service: CmsModuleService, -}) -``` - -You use `Module` from the Modules SDK to export the module's defintion, indicating that the module's name is `cms` and its service is `CmsModuleService`. - -*** - -## 4. Add Module to Medusa's Configurations - -Finally, add the module to the Medusa configurations at `medusa-config.ts`: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - // ... - { - resolve: "./src/modules/cms", - options: { - apiKey: process.env.CMS_API_KEY, - }, - }, - ], -}) -``` - -The object passed in `modules` accept an `options` property, whose value is an object of options to pass to the module. These are the options you receive in the `CmsModuleService`'s constructor. - -You can add the `CMS_API_KEY` environment variable to `.env`: - -```bash -CMS_API_KEY=123 -``` - -*** - -## Next Steps: Sync Brand From Medusa to CMS - -You can now use the CMS Module's service to perform actions on the third-party CMS. - -In the next chapter, you'll learn how to emit an event when a brand is created, then handle that event to sync the brand from Medusa to the third-party service. - - # Translate Medusa Admin The Medusa Admin supports multiple languages, with the default being English. In this documentation, you'll learn how to contribute to the community by translating the Medusa Admin to a language you're fluent in. @@ -18111,6 +15793,2455 @@ console.log("This block can't use semi colons") ~~~ */} +# Expose a Workflow Hook + +In this chapter, you'll learn how to expose a hook in your workflow. + +## When to Expose a Hook + +Your workflow is reusable in other applications, and you allow performing an external action at some point in your workflow. + +Your workflow isn't reusable by other applications. Use a step that performs what a hook handler would instead. + +*** + +## How to Expose a Hook in a Workflow? + +To expose a hook in your workflow, use `createHook` from the Workflows SDK. + +For example: + +```ts title="src/workflows/my-workflow/index.ts" highlights={hookHighlights} +import { + createStep, + createHook, + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" +import { createProductStep } from "./steps/create-product" + +export const myWorkflow = createWorkflow( + "my-workflow", + function (input) { + const product = createProductStep(input) + const productCreatedHook = createHook( + "productCreated", + { productId: product.id } + ) + + return new WorkflowResponse(product, { + hooks: [productCreatedHook], + }) + } +) +``` + +The `createHook` function accepts two parameters: + +1. The first is a string indicating the hook's name. You use this to consume the hook later. +2. The second is the input to pass to the hook handler. + +The workflow must also pass an object having a `hooks` property as a second parameter to the `WorkflowResponse` constructor. Its value is an array of the workflow's hooks. + +### How to Consume the Hook? + +To consume the hook of the workflow, create the file `src/workflows/hooks/my-workflow.ts` with the following content: + +```ts title="src/workflows/hooks/my-workflow.ts" highlights={handlerHighlights} +import { myWorkflow } from "../my-workflow" + +myWorkflow.hooks.productCreated( + async ({ productId }, { container }) => { + // TODO perform an action + } +) +``` + +The hook is available on the workflow's `hooks` property using its name `productCreated`. + +You invoke the hook, passing a step function (the hook handler) as a parameter. + + +# Conditions in Workflows with When-Then + +In this chapter, you'll learn how to execute an action based on a condition in a workflow using when-then from the Workflows SDK. + +## Why If-Conditions Aren't Allowed in Workflows? + +Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. At that point, variables in the workflow don't have any values. They only do when you execute the workflow. + +So, you can't use an if-condition that checks a variable's value, as the condition will be evaluated when Medusa creates the internal representation of the workflow, rather than during execution. + +Instead, use when-then from the Workflows SDK. It allows you to perform steps in a workflow only if a condition that you specify is satisfied. + +Restrictions for conditions is only applicable in a workflow's definition. You can still use if-conditions in your step's code. + +*** + +## How to use When-Then? + +The Workflows SDK provides a `when` function that is used to check whether a condition is true. You chain a `then` function to `when` that specifies the steps to execute if the condition in `when` is satisfied. + +For example: + +```ts highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + when, +} from "@medusajs/framework/workflows-sdk" +// step imports... + +const workflow = createWorkflow( + "workflow", + function (input: { + is_active: boolean + }) { + + const result = when( + input, + (input) => { + return input.is_active + } + ).then(() => { + const stepResult = isActiveStep() + return stepResult + }) + + // executed without condition + const anotherStepResult = anotherStep(result) + + return new WorkflowResponse( + anotherStepResult + ) + } +) +``` + +In this code snippet, you execute the `isActiveStep` only if the `input.is_active`'s value is `true`. + +### When Parameters + +`when` accepts the following parameters: + +1. The first parameter is either an object or the workflow's input. This data is passed as a parameter to the function in `when`'s second parameter. +2. The second parameter is a function that returns a boolean indicating whether to execute the action in `then`. + +### Then Parameters + +To specify the action to perform if the condition is satisfied, chain a `then` function to `when` and pass it a callback function. + +The callback function is only executed if `when`'s second parameter function returns a `true` value. + +*** + +## Implementing If-Else with When-Then + +when-then doesn't support if-else conditions. Instead, use two `when-then` conditions in your workflow. + +For example: + +```ts highlights={ifElseHighlights} +const workflow = createWorkflow( + "workflow", + function (input: { + is_active: boolean + }) { + + const isActiveResult = when( + input, + (input) => { + return input.is_active + } + ).then(() => { + return isActiveStep() + }) + + const notIsActiveResult = when( + input, + (input) => { + return !input.is_active + } + ).then(() => { + return notIsActiveStep() + }) + + // ... + } +) +``` + +In the above workflow, you use two `when-then` blocks. The first one performs a step if `input.is_active` is `true`, and the second performs a step if `input.is_active` is `false`, acting as an else condition. + +*** + +## Specify Name for When-Then + +Internally, `when-then` blocks have a unique name similar to a step. When you return a step's result in a `when-then` block, the block's name is derived from the step's name. For example: + +```ts +const isActiveResult = when( + input, + (input) => { + return input.is_active + } +).then(() => { + return isActiveStep() +}) +``` + +This `when-then` block's internal name will be `when-then-is-active`, where `is-active` is the step's name. + +However, if you need to return in your `when-then` block something other than a step's result, you need to specify a unique step name for that block. Otherwise, Medusa will generate a random name for it which can cause unexpected errors in production. + +You pass a name for `when-then` as a first parameter of `when`, whose signature can accept three parameters in this case. For example: + +```ts highlights={nameHighlights} +const { isActive } = when( + "check-is-active", + input, + (input) => { + return input.is_active + } +).then(() => { + const isActive = isActiveStep() + + return { + isActive, + } +}) +``` + +Since `then` returns a value different than the step's result, you pass to the `when` function the following parameters: + +1. A unique name to be assigned to the `when-then` block. +2. Either an object or the workflow's input. This data is passed as a parameter to the function in `when`'s second parameter. +3. A function that returns a boolean indicating whether to execute the action in `then`. + +The second and third parameters are the same as the parameters you previously passed to `when`. + + +# Compensation Function + +In this chapter, you'll learn what a compensation function is and how to add it to a step. + +## What is a Compensation Function + +A compensation function rolls back or undoes changes made by a step when an error occurs in the workflow. + +For example, if a step creates a record, the compensation function deletes the record when an error occurs later in the workflow. + +By using compensation functions, you provide a mechanism that guarantees data consistency in your application and across systems. + +*** + +## How to add a Compensation Function? + +A compensation function is passed as a second parameter to the `createStep` function. + +For example, create the file `src/workflows/hello-world.ts` with the following content: + +```ts title="src/workflows/hello-world.ts" highlights={[["15"], ["16"], ["17"]]} collapsibleLines="1-5" expandButtonLabel="Show Imports" +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async () => { + const message = `Hello from step one!` + + console.log(message) + + return new StepResponse(message) + }, + async () => { + console.log("Oops! Rolling back my changes...") + } +) +``` + +Each step can have a compensation function. The compensation function only runs if an error occurs throughout the workflow. + +*** + +## Test the Compensation Function + +Create a step in the same `src/workflows/hello-world.ts` file that throws an error: + +```ts title="src/workflows/hello-world.ts" +const step2 = createStep( + "step-2", + async () => { + throw new Error("Throwing an error...") + } +) +``` + +Then, create a workflow that uses the steps: + +```ts title="src/workflows/hello-world.ts" collapsibleLines="1-8" expandButtonLabel="Show Imports" +import { + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" +// other imports... + +// steps... + +const myWorkflow = createWorkflow( + "hello-world", + function (input) { + const str1 = step1() + step2() + + return new WorkflowResponse({ + message: str1, + }) +}) + +export default myWorkflow +``` + +Finally, execute the workflow from an API route: + +```ts title="src/api/workflow/route.ts" collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import myWorkflow from "../../../workflows/hello-world" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await myWorkflow(req.scope) + .run() + + res.send(result) +} +``` + +Run the Medusa application and send a `GET` request to `/workflow`: + +```bash +curl http://localhost:9000/workflow +``` + +In the console, you'll see: + +- `Hello from step one!` logged in the terminal, indicating that the first step ran successfully. +- `Oops! Rolling back my changes...` logged in the terminal, indicating that the second step failed and the compensation function of the first step ran consequently. + +*** + +## Pass Input to Compensation Function + +If a step creates a record, the compensation function must receive the ID of the record to remove it. + +To pass input to the compensation function, pass a second parameter in the `StepResponse` returned by the step. + +For example: + +```ts highlights={inputHighlights} +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async () => { + return new StepResponse( + `Hello from step one!`, + { message: "Oops! Rolling back my changes..." } + ) + }, + async ({ message }) => { + console.log(message) + } +) +``` + +In this example, the step passes an object as a second parameter to `StepResponse`. + +The compensation function receives the object and uses its `message` property to log a message. + +*** + +## Resolve Resources from the Medusa Container + +The compensation function receives an object second parameter. The object has a `container` property that you use to resolve resources from the Medusa container. + +For example: + +```ts +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { ContainerRegistrationKeys } from "@medusajs/framework/utils" + +const step1 = createStep( + "step-1", + async () => { + return new StepResponse( + `Hello from step one!`, + { message: "Oops! Rolling back my changes..." } + ) + }, + async ({ message }, { container }) => { + const logger = container.resolve( + ContainerRegistrationKeys.LOGGER + ) + + logger.info(message) + } +) +``` + +In this example, you use the `container` property in the second object parameter of the compensation function to resolve the logger. + +You then use the logger to log a message. + +*** + +## Handle Step Errors in Loops + +This feature is only available after [Medusa v2.0.5](https://github.com/medusajs/medusa/releases/tag/v2.0.5). + +Consider you have a module that integrates a third-party ERP system, and you're creating a workflow that deletes items in that ERP. You may have the following step: + +```ts +// other imports... +import { promiseAll } from "@medusajs/framework/utils" + +type StepInput = { + ids: string[] +} + +const step1 = createStep( + "step-1", + async ({ ids }: StepInput, { container }) => { + const erpModuleService = container.resolve( + ERP_MODULE + ) + const prevData: unknown[] = [] + + await promiseAll( + ids.map(async (id) => { + const data = await erpModuleService.retrieve(id) + + await erpModuleService.delete(id) + + prevData.push(id) + }) + ) + + return new StepResponse(ids, prevData) + } +) +``` + +In the step, you loop over the IDs to retrieve the item's data, store them in a `prevData` variable, then delete them using the ERP Module's service. You then pass the `prevData` variable to the compensation function. + +However, if an error occurs in the loop, the `prevData` variable won't be passed to the compensation function as the execution never reached the return statement. + +To handle errors in the loop so that the compensation function receives the last version of `prevData` before the error occurred, you wrap the loop in a try-catch block. Then, in the catch block, you invoke and return the `StepResponse.permanentFailure` function: + +```ts highlights={highlights} +try { + await promiseAll( + ids.map(async (id) => { + const data = await erpModuleService.retrieve(id) + + await erpModuleService.delete(id) + + prevData.push(id) + }) + ) +} catch (e) { + return StepResponse.permanentFailure( + `An error occurred: ${e}`, + prevData + ) +} +``` + +The `StepResponse.permanentFailure` fails the step and its workflow, triggering current and previous steps' compensation functions. The `permanentFailure` function accepts as a first parameter the error message, which is saved in the workflow's error details, and as a second parameter the data to pass to the compensation function. + +So, if an error occurs during the loop, the compensation function will still receive the `prevData` variable to undo the changes made before the step failed. + +For more details on error handling in workflows and steps, check the [Handling Errors chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). + + +# Error Handling in Workflows + +In this chapter, you’ll learn about what happens when an error occurs in a workflow, how to disable error throwing in a workflow, and try-catch alternatives in workflow definitions. + +## Default Behavior of Errors in Workflows + +When an error occurs in a workflow, such as when a step throws an error, the workflow execution stops. Then, [the compensation function](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md) of every step in the workflow is called to undo the actions performed by their respective steps. + +The workflow's caller, such as an API route, subscriber, or scheduled job, will also fail and stop execution. Medusa then logs the error in the console. For API routes, an appropriate error is returned to the client based on the thrown error. + +Learn more about error handling in API routes in the [Errors chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/errors/index.html.md). + +This is the default behavior of errors in workflows. However, you can configure workflows to not throw errors, or you can configure a step's internal error handling mechanism to change the default behavior. + +*** + +## Disable Error Throwing in Workflow + +When an error is thrown in the workflow, that means the caller of the workflow, such as an API route, will fail and stop execution as well. + +While this is the common behavior, there are certain cases where you want to handle the error differently. For example, you may want to check the errors thrown by the workflow and return a custom error response to the client. + +The object parameter of a workflow's `run` method accepts a `throwOnError` property. When this property is set to `false`, the workflow will stop execution if an error occurs, but the Medusa's workflow engine will catch that error and return it to the caller instead of throwing it. + +For example: + +```ts title="src/api/workflows/route.ts" highlights={highlights} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import myWorkflow from "../../../workflows/hello-world" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result, errors } = await myWorkflow(req.scope) + .run({ + // ... + throwOnError: false, + }) + + if (errors.length) { + return res.send({ + message: "Something unexpected happened. Please try again.", + }) + } + + res.send(result) +} +``` + +You disable throwing errors in the workflow by setting the `throwOnError` property to `false` in the `run` method of the workflow. + +The object returned by the `run` method contains an `errors` property. This property is an array of errors that occured during the workflow's execution. You can check this array to see if any errors occurred and handle them accordingly. + +An error object has the following properties: + +- action: (\`string\`) The ID of the step that threw the error. +- handlerType: (\`invoke\` \\| \`compensate\`) Where the error occurred. If the value is \`invoke\`, it means the error occurred in a step. Otherwise, the error occurred in the compensation function of a step. +- error: (\[Error]\(https://nodejs.org/docs/latest-v20.x/api/errors.html#class-error)) The error object that was thrown. + +*** + +## Try-Catch Alternatives in Workflow Definition + +If you want to use try-catch mechanism in a workflow to undo step actions, use a [compensation function](https://docs.medusajs.com/learn/fundamentals/workflows/compensation-function/index.html.md) instead. + +### Why You Can't Use Try-Catch in Workflow Definitions + +Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. + +At that point, variables in the workflow don't have any values. They only do when you execute the workflow. + +So, try-catch blocks in the workflow definition function won't have an effect, as at that time the workflow is not executed and errors are not thrown. + +You can still use try-catch blocks in a workflow's step functions. For cases that require granular control over error handling in a workflow's definition, you can configure the internal error handling mechanism of a step. + +### Skip Workflow on Step Failure + +A step has a `skipOnPermanentFailure` configuration that allows you to configure what happens when an error occurs in the step. Its value can be a boolean or a string. + +By default, `skipOnPermanentFailure` is disabled. When it's enabled, the workflow's status is set to `skipped` instead of `failed`. This means: + +- Compensation functions of the workflow's steps are not called. +- The workflow's caller continues executing. You can still [access the error](#disable-error-throwing-in-workflow) that occurred during the workflow's execution as mentioned in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. + +This is useful when you want to perform actions if no error occurs, but you don't care about compensating the workflow's steps or you don't want to stop the caller's execution. + +You can think of setting the `skipOnPermanentFailure` to `true` as the equivalent of the following `try-catch` block: + +```ts title="Outside a Workflow" +try { + actionThatThrowsError() + + moreActions() +} catch (e) { + // don't do anything +} +``` + +You can do this in a workflow using the step's `skipOnPermanentFailure` configuration: + +```ts title="Workflow Equivalent" highlights={skipOnPermanentFailureEnabledHighlights} +import { + createWorkflow, +} from "@medusajs/framework/workflows-sdk" +import { + actionThatThrowsError, + moreActions, +} from "./steps" + +export const myWorkflow = createWorkflow( + "hello-world", + function (input) { + actionThatThrowsError().config({ + skipOnPermanentFailure: true, + }) + + // This action will not be executed if the previous step throws an error + moreActions() + } +) +``` + +You set the configuration of a step by chaining the `config` method to the step's function call. The `config` method accepts an object similar to the one that can be passed to `createStep`. + +In this example, if the `actionThatThrowsError` step throws an error, the rest of the workflow will be skipped, and the `moreActions` step will not be executed. + +You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. + +### Continue Workflow Execution from a Specific Step + +In some cases, if an error occurs in a step, you may want to continue the workflow's execution from a specific step instead of stopping the workflow's execution or skipping the rest of the steps. + +The `skipOnPermanentFailure` configuration can accept a step's ID as a value. Then, the workflow will continue execution from that step if an error occurs in the step that has the `skipOnPermanentFailure` configuration. + +The compensation function of the step that has the `skipOnPermanentFailure` configuration will not be called when an error occurs. + +You can think of setting the `skipOnPermanentFailure` to a step's ID as the equivalent of the following `try-catch` block: + +```ts title="Outside a Workflow" +try { + actionThatThrowsError() + + moreActions() +} catch (e) { + // do nothing +} + +continueExecutionFromStep() +``` + +You can do this in a workflow using the step's `skipOnPermanentFailure` configuration: + +```ts title="Workflow Equivalent" highlights={skipOnPermanentFailureStepHighlights} +import { + createWorkflow, +} from "@medusajs/framework/workflows-sdk" +import { + actionThatThrowsError, + moreActions, + continueExecutionFromStep, +} from "./steps" + +export const myWorkflow = createWorkflow( + "hello-world", + function (input) { + actionThatThrowsError().config({ + // The `continue-execution-from-step` is the ID passed as a first + // parameter to `createStep` of `continueExecutionFromStep`. + skipOnPermanentFailure: "continue-execution-from-step", + }) + + // This action will not be executed if the previous step throws an error + moreActions() + + // This action will be executed either way + continueExecutionFromStep() + } +) +``` + +In this example, you configure the `actionThatThrowsError` step to continue the workflow's execution from the `continueExecutionFromStep` step if an error occurs in the `actionThatThrowsError` step. + +Notice that you pass the ID of the `continueExecutionFromStep` step as it's set in the `createStep` function. + +So, the `moreActions` step will not be executed if the `actionThatThrowsError` step throws an error, and the `continueExecutionFromStep` will be executed anyway. + +You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. + +If the specified step ID doesn't exist in the workflow, it will be equivalent to setting the `skipOnPermanentFailure` configuration to `true`. So, the workflow will be skipped, and the rest of the steps will not be executed. + +### Set Step as Failed, but Continue Workflow Execution + +In some cases, you may want to fail a step, but continue the rest of the workflow's execution. + +This is useful when you don't want a step's failure to stop the workflow's execution, but you want to mark that step as failed. + +The `continueOnPermanentFailure` configuration allows you to do that. When enabled, the workflow's execution will continue, but the step will be marked as failed if an error occurs in that step. + +The compensation function of the step that has the `continueOnPermanentFailure` configuration will not be called when an error occurs. + +You can think of setting the `continueOnPermanentFailure` to `true` as the equivalent of the following `try-catch` block: + +```ts title="Outside a Workflow" +try { + actionThatThrowsError() +} catch (e) { + // do nothing +} + +moreActions() +``` + +You can do this in a workflow using the step's `continueOnPermanentFailure` configuration: + +```ts title="Workflow Equivalent" highlights={continueOnPermanentFailureHighlights} +import { + createWorkflow, +} from "@medusajs/framework/workflows-sdk" +import { + actionThatThrowsError, + moreActions, +} from "./steps" + +export const myWorkflow = createWorkflow( + "hello-world", + function (input) { + actionThatThrowsError().config({ + continueOnPermanentFailure: true, + }) + + // This action will be executed even if the previous step throws an error + moreActions() + } +) +``` + +In this example, if the `actionThatThrowsError` step throws an error, the `moreActions` step will still be executed. + +You can then access the error that occurred in that step as explained in the [Disable Error Throwing](#disable-error-throwing-in-workflow) section. + + +# Execute Another Workflow + +In this chapter, you'll learn how to execute a workflow in another. + +## Execute in a Workflow + +To execute a workflow in another, use the `runAsStep` method that every workflow has. + +For example: + +```ts highlights={workflowsHighlights} collapsibleLines="1-7" expandMoreButton="Show Imports" +import { + createWorkflow, +} from "@medusajs/framework/workflows-sdk" +import { + createProductsWorkflow, +} from "@medusajs/medusa/core-flows" + +const workflow = createWorkflow( + "hello-world", + async (input) => { + const products = createProductsWorkflow.runAsStep({ + input: { + products: [ + // ... + ], + }, + }) + + // ... + } +) +``` + +Instead of invoking the workflow and passing it the container, you use its `runAsStep` method and pass it an object as a parameter. + +The object has an `input` property to pass input to the workflow. + +*** + +## Preparing Input Data + +If you need to perform some data manipulation to prepare the other workflow's input data, use `transform` from the Workflows SDK. + +Learn about transform in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). + +For example: + +```ts highlights={transformHighlights} collapsibleLines="1-12" +import { + createWorkflow, + transform, +} from "@medusajs/framework/workflows-sdk" +import { + createProductsWorkflow, +} from "@medusajs/medusa/core-flows" + +type WorkflowInput = { + title: string +} + +const workflow = createWorkflow( + "hello-product", + async (input: WorkflowInput) => { + const createProductsData = transform({ + input, + }, (data) => [ + { + title: `Hello ${data.input.title}`, + }, + ]) + + const products = createProductsWorkflow.runAsStep({ + input: { + products: createProductsData, + }, + }) + + // ... + } +) +``` + +In this example, you use the `transform` function to prepend `Hello` to the title of the product. Then, you pass the result as an input to the `createProductsWorkflow`. + +*** + +## Run Workflow Conditionally + +To run a workflow in another based on a condition, use when-then from the Workflows SDK. + +Learn about when-then in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md). + +For example: + +```ts highlights={whenHighlights} collapsibleLines="1-16" +import { + createWorkflow, + when, +} from "@medusajs/framework/workflows-sdk" +import { + createProductsWorkflow, +} from "@medusajs/medusa/core-flows" +import { + CreateProductWorkflowInputDTO, +} from "@medusajs/framework/types" + +type WorkflowInput = { + product?: CreateProductWorkflowInputDTO + should_create?: boolean +} + +const workflow = createWorkflow( + "hello-product", + async (input: WorkflowInput) => { + const product = when(input, ({ should_create }) => should_create) + .then(() => { + return createProductsWorkflow.runAsStep({ + input: { + products: [input.product], + }, + }) + }) + } +) +``` + +In this example, you use when-then to run the `createProductsWorkflow` only if `should_create` (passed in the `input`) is enabled. + + +# Workflow Constraints + +This chapter lists constraints of defining a workflow or its steps. + +Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. At that point, variables in the workflow don't have any values. They only do when you execute the workflow. + +This creates restrictions related to variable manipulations, using if-conditions, and other constraints. This chapter lists these constraints and provides their alternatives. + +## Workflow Constraints + +### No Async Functions + +The function passed to `createWorkflow` can’t be an async function: + +```ts highlights={[["4", "async", "Function can't be async."], ["11", "", "Correct way of defining the function."]]} +// Don't +const myWorkflow = createWorkflow( + "hello-world", + async function (input: WorkflowInput) { + // ... +}) + +// Do +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + // ... +}) +``` + +### No Direct Variable Manipulation + +You can’t directly manipulate variables within the workflow's constructor function. + +Learn more about why you can't manipulate variables [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md) + +Instead, use `transform` from the Workflows SDK: + +```ts highlights={highlights} +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const str1 = step1(input) + const str2 = step2(input) + + return new WorkflowResponse({ + message: `${str1}${str2}`, + }) +}) + +// Do +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const str1 = step1(input) + const str2 = step2(input) + + const result = transform( + { + str1, + str2, + }, + (input) => ({ + message: `${input.str1}${input.str2}`, + }) + ) + + return new WorkflowResponse(result) +}) +``` + +#### Create Dates in transform + +When you use `new Date()` in a workflow's constructor function, the date is evaluated when Medusa creates the internal representation of the workflow, not during execution. + +Instead, create the date using `transform`. + +Learn more about how Medusa creates an internal representation of a workflow [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/variable-manipulation/index.html.md). + +For example: + +```ts highlights={dateHighlights} +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const today = new Date() + + return new WorkflowResponse({ + today, + }) +}) + +// Do +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const today = transform({}, () => new Date()) + + return new WorkflowResponse({ + today, + }) +}) +``` + +### No If Conditions + +You can't use if-conditions in a workflow. + +Learn more about why you can't use if-conditions [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions#why-if-conditions-arent-allowed-in-workflows/index.html.md) + +Instead, use when-then from the Workflows SDK: + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + if (input.is_active) { + // perform an action + } +}) + +// Do (explained in the next chapter) +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + when(input, (input) => { + return input.is_active + }) + .then(() => { + // perform an action + }) +}) +``` + +You can also pair multiple `when-then` blocks to implement an `if-else` condition as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md). + +### No Conditional Operators + +You can't use conditional operators in a workflow, such as `??` or `||`. + +Learn more about why you can't use conditional operators [in this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/conditions#why-if-conditions-arent-allowed-in-workflows/index.html.md) + +Instead, use `transform` to store the desired value in a variable. + +#### Logical Or (||) Alternative + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const message = input.message || "Hello" +}) + +// Do +// other imports... +import { transform } from "@medusajs/framework/workflows-sdk" + +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const message = transform( + { + input, + }, + (data) => data.input.message || "hello" + ) +}) +``` + +#### Nullish Coalescing (??) Alternative + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const message = input.message ?? "Hello" +}) + +// Do +// other imports... +import { transform } from "@medusajs/framework/workflows-sdk" + +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const message = transform( + { + input, + }, + (data) => data.input.message ?? "hello" + ) +}) +``` + +#### Double Not (!!) Alternative + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + step1({ + isActive: !!input.is_active, + }) +}) + +// Do +// other imports... +import { transform } from "@medusajs/framework/workflows-sdk" + +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const isActive = transform( + { + input, + }, + (data) => !!data.input.is_active + ) + + step1({ + isActive, + }) +}) +``` + +#### Ternary Alternative + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + step1({ + message: input.is_active ? "active" : "inactive", + }) +}) + +// Do +// other imports... +import { transform } from "@medusajs/framework/workflows-sdk" + +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const message = transform( + { + input, + }, + (data) => { + return data.input.is_active ? "active" : "inactive" + } + ) + + step1({ + message, + }) +}) +``` + +#### Optional Chaining (?.) Alternative + +```ts +// Don't +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + step1({ + name: input.customer?.name, + }) +}) + +// Do +// other imports... +import { transform } from "@medusajs/framework/workflows-sdk" + +const myWorkflow = createWorkflow( + "hello-world", + function (input: WorkflowInput) { + const name = transform( + { + input, + }, + (data) => data.input.customer?.name + ) + + step1({ + name, + }) +}) +``` + +### No Try-Catch + +In a workflow, don't use try-catch blocks to handle errors. + +Instead, refer to the [Error Handling](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md) chapter for alternative ways to handle errors. + +*** + +## Step Constraints + +### Returned Values + +A step must only return serializable values, such as [primitive values](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#primitive_values) or an object. + +Values of other types, such as Maps, aren't allowed. + +```ts +// Don't +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + (input, { container }) => { + const myMap = new Map() + + // ... + + return new StepResponse({ + myMap, + }) + } +) + +// Do +import { + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + (input, { container }) => { + const myObj: Record = {} + + // ... + + return new StepResponse({ + myObj, + }) + } +) +``` + + +# Long-Running Workflows + +In this chapter, you’ll learn what a long-running workflow is and how to configure it. + +## What is a Long-Running Workflow? + +When you execute a workflow, you wait until the workflow finishes execution to receive the output. + +A long-running workflow is a workflow that continues its execution in the background. You don’t receive its output immediately. Instead, you subscribe to the workflow execution to listen to status changes and receive its result once the execution is finished. + +### Why use Long-Running Workflows? + +Long-running workflows are useful if: + +- A task takes too long. For example, you're importing data from a CSV file. +- The workflow's steps wait for an external action to finish before resuming execution. For example, before you import the data from the CSV file, you wait until the import is confirmed by the user. +- You want to retry workflow steps after a long period of time. For example, you want to retry a step that processes a payment every day until the payment is successful. + - Refer to the [Retry Failed Steps chapter](https://docs.medusajs.com/learn/fundamentals/workflows/retry-failed-steps/index.html.md) for more information. + +*** + +## Configure Long-Running Workflows + +A workflow is considered long-running if at least one step has its `async` configuration set to `true` and doesn't return a step response. + +For example, consider the following workflow and steps: + +```ts title="src/workflows/hello-world.ts" highlights={[["15"]]} collapsibleLines="1-11" expandButtonLabel="Show More" +import { + createStep, + createWorkflow, + WorkflowResponse, + StepResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep("step-1", async () => { + return new StepResponse({}) +}) + +const step2 = createStep( + { + name: "step-2", + async: true, + }, + async () => { + console.log("Waiting to be successful...") + } +) + +const step3 = createStep("step-3", async () => { + return new StepResponse("Finished three steps") +}) + +const myWorkflow = createWorkflow( + "hello-world", + function () { + step1() + step2() + const message = step3() + + return new WorkflowResponse({ + message, + }) +}) + +export default myWorkflow +``` + +The second step has in its configuration object `async` set to `true` and it doesn't return a step response. This indicates that this step is an asynchronous step. + +So, when you execute the `hello-world` workflow, it continues its execution in the background once it reaches the second step. + +### When is a Workflow Considered Long-Running? + +A workflow is also considered long-running if: + +- One of its steps has its `async` configuration set to `true` and doesn't return a step response. +- One of its steps has its `retryInterval` option set as explained in the [Retry Failed Steps chapter](https://docs.medusajs.com/learn/fundamentals/workflows/retry-failed-steps/index.html.md). + +*** + +## Change Step Status + +Once the workflow's execution reaches an async step, it'll wait in the background for the step to succeed or fail before it moves to the next step. + +To fail or succeed a step, use the Workflow Engine Module's main service that is registered in the Medusa Container under the `Modules.WORKFLOW_ENGINE` (or `workflowsModuleService`) key. + +### Retrieve Transaction ID + +Before changing the status of a workflow execution's async step, you must have the execution's transaction ID. + +When you execute the workflow, the object returned has a `transaction` property, which is an object that holds the details of the workflow execution's transaction. Use its `transactionId` to later change async steps' statuses: + +```ts +const { transaction } = await myWorkflow(req.scope) + .run() + +// use transaction.transactionId later +``` + +### Change Step Status to Successful + +The Workflow Engine Module's main service has a `setStepSuccess` method to set a step's status to successful. If you use it on a workflow execution's async step, the workflow continues execution to the next step. + +For example, consider the following step: + +```ts highlights={successStatusHighlights} collapsibleLines="1-9" expandButtonLabel="Show Imports" +import { + Modules, + TransactionHandlerType, +} from "@medusajs/framework/utils" +import { + StepResponse, + createStep, +} from "@medusajs/framework/workflows-sdk" + +type SetStepSuccessStepInput = { + transactionId: string +}; + +export const setStepSuccessStep = createStep( + "set-step-success-step", + async function ( + { transactionId }: SetStepSuccessStepInput, + { container } + ) { + const workflowEngineService = container.resolve( + Modules.WORKFLOW_ENGINE + ) + + await workflowEngineService.setStepSuccess({ + idempotencyKey: { + action: TransactionHandlerType.INVOKE, + transactionId, + stepId: "step-2", + workflowId: "hello-world", + }, + stepResponse: new StepResponse("Done!"), + options: { + container, + }, + }) + } +) +``` + +In this step (which you use in a workflow other than the long-running workflow), you resolve the Workflow Engine Module's main service and set `step-2` of the previous workflow as successful. + +The `setStepSuccess` method of the workflow engine's main service accepts as a parameter an object having the following properties: + +- idempotencyKey: (\`object\`) The details of the workflow execution. + + - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. + + - transactionId: (\`string\`) The ID of the workflow execution's transaction. + + - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. + + - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. +- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the \`async\` step doesn't have a response, you set its response when changing its status. +- options: (\`Record\\`) Options to pass to the step. + + - container: (\`MedusaContainer\`) An instance of the Medusa Container + +### Change Step Status to Failed + +The Workflow Engine Module's main service also has a `setStepFailure` method that changes a step's status to failed. It accepts the same parameter as `setStepSuccess`. + +After changing the async step's status to failed, the workflow execution fails and the compensation functions of previous steps are executed. + +For example: + +```ts highlights={failureStatusHighlights} collapsibleLines="1-9" expandButtonLabel="Show Imports" +import { + Modules, + TransactionHandlerType, +} from "@medusajs/framework/utils" +import { + StepResponse, + createStep, +} from "@medusajs/framework/workflows-sdk" + +type SetStepFailureStepInput = { + transactionId: string +}; + +export const setStepFailureStep = createStep( + "set-step-failure-step", + async function ( + { transactionId }: SetStepFailureStepInput, + { container } + ) { + const workflowEngineService = container.resolve( + Modules.WORKFLOW_ENGINE + ) + + await workflowEngineService.setStepFailure({ + idempotencyKey: { + action: TransactionHandlerType.INVOKE, + transactionId, + stepId: "step-2", + workflowId: "hello-world", + }, + stepResponse: new StepResponse("Failed!"), + options: { + container, + }, + }) + } +) +``` + +You use this step in another workflow that changes the status of an async step in a long-running workflow's execution to failed. + +*** + +## Access Long-Running Workflow Status and Result + +To access the status and result of a long-running workflow execution, use the `subscribe` and `unsubscribe` methods of the Workflow Engine Module's main service. + +To retrieve the workflow execution's details at a later point, you must enable [storing the workflow's executions](https://docs.medusajs.com/learn/fundamentals/workflows/store-executions/index.html.md). + +For example: + +```ts title="src/api/workflows/route.ts" highlights={highlights} collapsibleLines="1-11" expandButtonLabel="Show Imports" +import type { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" +import myWorkflow from "../../../workflows/hello-world" +import { + IWorkflowEngineService, +} from "@medusajs/framework/types" +import { Modules } from "@medusajs/framework/utils" + +export async function GET(req: MedusaRequest, res: MedusaResponse) { + const { transaction, result } = await myWorkflow(req.scope).run() + + const workflowEngineService = req.scope.resolve< + IWorkflowEngineService + >( + Modules.WORKFLOW_ENGINE + ) + + const subscriptionOptions = { + workflowId: "hello-world", + transactionId: transaction.transactionId, + subscriberId: "hello-world-subscriber", + } + + await workflowEngineService.subscribe({ + ...subscriptionOptions, + subscriber: async (data) => { + if (data.eventType === "onFinish") { + console.log("Finished execution", data.result) + // unsubscribe + await workflowEngineService.unsubscribe({ + ...subscriptionOptions, + subscriberOrId: subscriptionOptions.subscriberId, + }) + } else if (data.eventType === "onStepFailure") { + console.log("Workflow failed", data.step) + } + }, + }) + + res.send(result) +} +``` + +In the above example, you execute the long-running workflow `hello-world` and resolve the Workflow Engine Module's main service from the Medusa container. + +### subscribe Method + +The main service's `subscribe` method allows you to listen to changes in the workflow execution’s status. It accepts an object having three properties: + +- workflowId: (\`string\`) The name of the workflow. +- transactionId: (\`string\`) The ID of the workflow exection's transaction. The transaction's details are returned in the response of the workflow execution. +- subscriberId: (\`string\`) The ID of the subscriber. +- subscriber: (\`(data: \{ eventType: string, result?: any }) => Promise\\`) The function executed when the workflow execution's status changes. The function receives a data object. It has an \`eventType\` property, which you use to check the status of the workflow execution. + +If the value of `eventType` in the `subscriber` function's first parameter is `onFinish`, the workflow finished executing. The first parameter then also has a `result` property holding the workflow's output. + +### unsubscribe Method + +You can unsubscribe from the workflow using the workflow engine's `unsubscribe` method, which requires the same object parameter as the `subscribe` method. + +However, instead of the `subscriber` property, it requires a `subscriberOrId` property whose value is the same `subscriberId` passed to the `subscribe` method. + +*** + +## Example: Restaurant-Delivery Recipe + +To find a full example of a long-running workflow, refer to the [restaurant-delivery recipe](https://docs.medusajs.com/resources/recipes/marketplace/examples/restaurant-delivery/index.html.md). + +In the recipe, you use a long-running workflow that moves an order from placed to completed. The workflow waits for the restaurant to accept the order, the driver to pick up the order, and other external actions. + + +# Multiple Step Usage in Workflow + +In this chapter, you'll learn how to use a step multiple times in a workflow. + +## Problem Reusing a Step in a Workflow + +In some cases, you may need to use a step multiple times in the same workflow. + +The most common example is using the `useQueryGraphStep` multiple times in a workflow to retrieve multiple unrelated data, such as customers and products. + +Each workflow step must have a unique ID, which is the ID passed as a first parameter when creating the step: + +```ts +const useQueryGraphStep = createStep( + "use-query-graph" + // ... +) +``` + +This causes an error when you use the same step multiple times in a workflow, as it's registered in the workflow as two steps having the same ID: + +```ts +const helloWorkflow = createWorkflow( + "hello", + () => { + const { data: products } = useQueryGraphStep({ + entity: "product", + fields: ["id"], + }) + + // ERROR OCCURS HERE: A STEP HAS THE SAME ID AS ANOTHER IN THE WORKFLOW + const { data: customers } = useQueryGraphStep({ + entity: "customer", + fields: ["id"], + }) + } +) +``` + +The next section explains how to fix this issue to use the same step multiple times in a workflow. + +*** + +## How to Use a Step Multiple Times in a Workflow? + +When you execute a step in a workflow, you can chain a `config` method to it to change the step's config. + +Use the `config` method to change a step's ID for a single execution. + +So, this is the correct way to write the example above: + +```ts highlights={highlights} +const helloWorkflow = createWorkflow( + "hello", + () => { + const { data: products } = useQueryGraphStep({ + entity: "product", + fields: ["id"], + }) + + // ✓ No error occurs, the step has a different ID. + const { data: customers } = useQueryGraphStep({ + entity: "customer", + fields: ["id"], + }).config({ name: "fetch-customers" }) + } +) +``` + +The `config` method accepts an object with a `name` property. Its value is a new ID of the step to use for this execution only. + +The first `useQueryGraphStep` usage has the ID `use-query-graph`, and the second `useQueryGraphStep` usage has the ID `fetch-customers`. + + +# Run Workflow Steps in Parallel + +In this chapter, you’ll learn how to run workflow steps in parallel. + +## parallelize Utility Function + +If your workflow has steps that don’t rely on one another’s results, run them in parallel using `parallelize` from the Workflows SDK. + +The workflow waits until all steps passed to the `parallelize` function finish executing before continuing to the next step. + +For example: + +```ts highlights={highlights} collapsibleLines="1-12" expandButtonLabel="Show Imports" +import { + createWorkflow, + WorkflowResponse, + parallelize, +} from "@medusajs/framework/workflows-sdk" +import { + createProductStep, + getProductStep, + createPricesStep, + attachProductToSalesChannelStep, +} from "./steps" + +interface WorkflowInput { + title: string +} + +const myWorkflow = createWorkflow( + "my-workflow", + (input: WorkflowInput) => { + const product = createProductStep(input) + + const [prices, productSalesChannel] = parallelize( + createPricesStep(product), + attachProductToSalesChannelStep(product) + ) + + const refetchedProduct = getProductStep(product.id) + + return new WorkflowResponse(refetchedProduct) + } +) +``` + +The `parallelize` function accepts the steps to run in parallel as a parameter. + +It returns an array of the steps' results in the same order they're passed to the `parallelize` function. + +So, `prices` is the result of `createPricesStep`, and `productSalesChannel` is the result of `attachProductToSalesChannelStep`. + + +# Retry Failed Steps + +In this chapter, you’ll learn how to configure steps to allow retrial on failure. + +## What is a Step Retrial? + +A step retrial is a mechanism that allows a step to be retried automatically when it fails. This is useful for handling transient errors, such as network issues or temporary unavailability of a service. + +When a step fails, the workflow engine can automatically retry the step a specified number of times before marking the workflow as failed. This can help improve the reliability and resilience of your workflows. + +You can also configure the interval between retries, allowing you to wait for a certain period before attempting the step again. This is useful when the failure is due to a temporary issue that may resolve itself after some time. + +For example, if a step captures a payment, you may want to retry it the next day until the payment is successful or the maximum number of retries is reached. + +*** + +## Configure a Step’s Retrial + +By default, when an error occurs in a step, the step and the workflow fail, and the execution stops. + +You can configure the step to retry on failure. The `createStep` function can accept a configuration object instead of the step’s name as a first parameter. + +For example: + +```ts title="src/workflows/hello-world.ts" highlights={[["10"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + createStep, + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + { + name: "step-1", + maxRetries: 2, + }, + async () => { + console.log("Executing step 1") + + throw new Error("Oops! Something happened.") + } +) + +const myWorkflow = createWorkflow( + "hello-world", + function () { + const str1 = step1() + + return new WorkflowResponse({ + message: str1, + }) +}) + +export default myWorkflow +``` + +The step’s configuration object accepts a `maxRetries` property, which is a number indicating the number of times a step can be retried when it fails. + +When you execute the above workflow, you’ll see the following result in the terminal: + +```bash +Executing step 1 +Executing step 1 +Executing step 1 +error: Oops! Something happened. +Error: Oops! Something happened. +``` + +The first line indicates the first time the step was executed, and the next two lines indicate the times the step was retried. After that, the step and workflow fail. + +*** + +## Step Retry Intervals + +By default, a step is retried immediately after it fails. To specify a wait time before a step is retried, pass a `retryInterval` property to the step's configuration object. Its value is a number of seconds to wait before retrying the step. + +For example: + +```ts title="src/workflows/hello-world.ts" highlights={[["5"]]} +const step1 = createStep( + { + name: "step-1", + maxRetries: 2, + retryInterval: 2, // 2 seconds + }, + async () => { + // ... + } +) +``` + +In this example, if the step fails, it will be retried after two seconds. + +### Maximum Retry Interval + +The `retryInterval` property's maximum value is [Number.MAX\_SAFE\_INTEGER](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER). So, you can set a very long wait time before the step is retried, allowing you to retry steps after a long period. + +For example, to retry a step after a day: + +```ts title="src/workflows/hello-world.ts" highlights={[["5"]]} +const step1 = createStep( + { + name: "step-1", + maxRetries: 2, + retryInterval: 86400, // 1 day + }, + async () => { + // ... + } +) +``` + +In this example, if the step fails, it will be retried after `86400` seconds (one day). + +### Interval Changes Workflow to Long-Running + +By setting `retryInterval` on a step, a workflow that uses that step becomes a [long-running workflow](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow/index.html.md) that runs asynchronously in the background. This is useful when creating workflows that may fail and should run for a long time until they succeed, such as waiting for a payment to be captured or a shipment to be delivered. + +However, since the long-running workflow runs in the background, you won't receive its result or errors immediately when you execute the workflow. + +Instead, you must subscribe to the workflow's execution using the Workflow Engine Module Service. Learn more about it in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow#access-long-running-workflow-status-and-result/index.html.md). + + +# Store Workflow Executions + +In this chapter, you'll learn how to store workflow executions in the database and access them later. + +## Workflow Execution Retention + +Medusa doesn't store your workflow's execution details by default. However, you can configure a workflow to keep its execution details stored in the database. + +This is useful for auditing and debugging purposes. When you store a workflow's execution, you can view details around its steps, their states and their output. You can also check whether the workflow or any of its steps failed. + +You can view stored workflow executions from the Medusa Admin dashboard by going to Settings -> Workflows. + +*** + +## How to Store Workflow's Executions? + +### Prerequisites + +- [Redis Workflow Engine must be installed and configured.](https://docs.medusajs.com/resources/infrastructure-modules/workflow-engine/redis/index.html.md) + +`createWorkflow` from the Workflows SDK can accept an object as a first parameter to set the workflow's configuration. To enable storing a workflow's executions: + +- Enable the `store` option. If your workflow is a [Long-Running Workflow](https://docs.medusajs.com/learn/fundamentals/workflows/long-running-workflow/index.html.md), this option is enabled by default. +- Set the `retentionTime` option to the number of seconds that the workflow execution should be stored in the database. + +For example: + +```ts highlights={highlights} +import { createStep, createWorkflow } from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + { + name: "step-1", + }, + async () => { + console.log("Hello from step 1") + } +) + +export const helloWorkflow = createWorkflow( + { + name: "hello-workflow", + retentionTime: 99999, + store: true, + }, + () => { + step1() + } +) +``` + +Whenever you execute the `helloWorkflow` now, its execution details will be stored in the database. + +*** + +## Retrieve Workflow Executions + +You can view stored workflow executions from the Medusa Admin dashboard by going to Settings -> Workflows. + +When you execute a workflow, the returned object has a `transaction` property containing the workflow execution's transaction details: + +```ts +const { transaction } = await helloWorkflow(container).run() +``` + +To retrieve a workflow's execution details from the database, resolve the Workflow Engine Module from the container and use its `listWorkflowExecutions` method. + +For example, you can create a `GET` API Route at `src/workflows/[id]/route.ts` that retrieves a workflow execution for the specified transaction ID: + +```ts title="src/workflows/[id]/route.ts" highlights={retrieveHighlights} +import { MedusaRequest, MedusaResponse } from "@medusajs/framework" +import { Modules } from "@medusajs/framework/utils" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { transaction_id } = req.params + + const workflowEngineService = req.scope.resolve( + Modules.WORKFLOW_ENGINE + ) + + const [workflowExecution] = await workflowEngineService.listWorkflowExecutions({ + transaction_id: transaction_id, + }) + + res.json({ + workflowExecution, + }) +} +``` + +In the above example, you resolve the Workflow Engine Module from the container and use its `listWorkflowExecutions` method, passing the `transaction_id` as a filter to retrieve its workflow execution details. + +A workflow execution object will be similar to the following: + +```json +{ + "workflow_id": "hello-workflow", + "transaction_id": "01JJC2T6AVJCQ3N4BRD1EB88SP", + "id": "wf_exec_01JJC2T6B3P76JD35F12QTTA78", + "execution": { + "state": "done", + "steps": {}, + "modelId": "hello-workflow", + "options": {}, + "metadata": {}, + "startedAt": 1737719880027, + "definition": {}, + "timedOutAt": null, + "hasAsyncSteps": false, + "transactionId": "01JJC2T6AVJCQ3N4BRD1EB88SP", + "hasFailedSteps": false, + "hasSkippedSteps": false, + "hasWaitingSteps": false, + "hasRevertedSteps": false, + "hasSkippedOnFailureSteps": false + }, + "context": { + "data": {}, + "errors": [] + }, + "state": "done", + "created_at": "2025-01-24T09:58:00.036Z", + "updated_at": "2025-01-24T09:58:00.046Z", + "deleted_at": null +} +``` + +### Example: Check if Stored Workflow Execution Failed + +To check if a stored workflow execution failed, you can check its `state` property: + +```ts +if (workflowExecution.state === "failed") { + return res.status(500).json({ + error: "Workflow failed", + }) +} +``` + +Other state values include `done`, `invoking`, and `compensating`. + + +# Data Manipulation in Workflows with transform + +In this chapter, you'll learn how to use `transform` from the Workflows SDK to manipulate data and variables in a workflow. + +## Why Variable Manipulation isn't Allowed in Workflows + +Medusa creates an internal representation of the workflow definition you pass to `createWorkflow` to track and store its steps. + +At that point, variables in the workflow don't have any values. They only do when you execute the workflow. + +So, you can only pass variables as parameters to steps. But, in a workflow, you can't change a variable's value or, if the variable is an array, loop over its items. + +Instead, use `transform` from the Workflows SDK. + +Restrictions for variable manipulation is only applicable in a workflow's definition. You can still manipulate variables in your step's code. + +*** + +## What is the transform Utility? + +`transform` creates a new variable as the result of manipulating other variables. + +For example, consider you have two strings as the output of two steps: + +```ts +const str1 = step1() +const str2 = step2() +``` + +To concatenate the strings, you create a new variable `str3` using the `transform` function: + +```ts highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + transform, +} from "@medusajs/framework/workflows-sdk" +// step imports... + +const myWorkflow = createWorkflow( + "hello-world", + function (input) { + const str1 = step1(input) + const str2 = step2(input) + + const str3 = transform( + { str1, str2 }, + (data) => `${data.str1}${data.str2}` + ) + + return new WorkflowResponse(str3) + } +) +``` + +`transform` accepts two parameters: + +1. The first parameter is an object of variables to manipulate. The object is passed as a parameter to `transform`'s second parameter function. +2. The second parameter is the function performing the variable manipulation. + +The value returned by the second parameter function is returned by `transform`. So, the `str3` variable holds the concatenated string. + +You can use the returned value in the rest of the workflow, either to pass it as an input to other steps or to return it in the workflow's response. + +*** + +## Example: Looping Over Array + +Use `transform` to loop over arrays to create another variable from the array's items. + +For example: + +```ts collapsibleLines="1-7" expandButtonLabel="Show Imports" +import { + createWorkflow, + WorkflowResponse, + transform, +} from "@medusajs/framework/workflows-sdk" +// step imports... + +type WorkflowInput = { + items: { + id: string + name: string + }[] +} + +const myWorkflow = createWorkflow( + "hello-world", + function ({ items }: WorkflowInput) { + const ids = transform( + { items }, + (data) => data.items.map((item) => item.id) + ) + + doSomethingStep(ids) + + // ... + } +) +``` + +This workflow receives an `items` array in its input. + +You use `transform` to create an `ids` variable, which is an array of strings holding the `id` of each item in the `items` array. + +You then pass the `ids` variable as a parameter to the `doSomethingStep`. + +*** + +## Example: Creating a Date + +If you create a date with `new Date()` in a workflow's constructor function, Medusa evaluates the date's value when it creates the internal representation of the workflow, not when the workflow is executed. + +So, use `transform` instead to create a date variable with `new Date()`. + +For example: + +```ts +const myWorkflow = createWorkflow( + "hello-world", + () => { + const today = transform({}, () => new Date()) + + doSomethingStep(today) + } +) +``` + +In this workflow, `today` is only evaluated when the workflow is executed. + +*** + +## Caveats + +### Transform Evaluation + +`transform`'s value is only evaluated if you pass its output to a step or in the workflow response. + +For example, if you have the following workflow: + +```ts +const myWorkflow = createWorkflow( + "hello-world", + function (input) { + const str = transform( + { input }, + (data) => `${data.input.str1}${data.input.str2}` + ) + + return new WorkflowResponse("done") + } +) +``` + +Since `str`'s value isn't used as a step's input or passed to `WorkflowResponse`, its value is never evaluated. + +### Data Validation + +`transform` should only be used to perform variable or data manipulation. + +If you want to perform some validation on the data, use a step or [when-then](https://docs.medusajs.com/learn/fundamentals/workflows/conditions/index.html.md) instead. + +For example: + +```ts +// DON'T +const myWorkflow = createWorkflow( + "hello-world", + function (input) { + const str = transform( + { input }, + (data) => { + if (!input.str1) { + throw new Error("Not allowed!") + } + } + ) + } +) + +// DO +const validateHasStr1Step = createStep( + "validate-has-str1", + ({ input }) => { + if (!input.str1) { + throw new Error("Not allowed!") + } + } +) + +const myWorkflow = createWorkflow( + "hello-world", + function (input) { + validateHasStr1({ + input, + }) + + // workflow continues its execution only if + // the step doesn't throw the error. + } +) +``` + + +# Workflow Hooks + +In this chapter, you'll learn what a workflow hook is and how to consume them. + +## What is a Workflow Hook? + +A workflow hook is a point in a workflow where you can inject custom functionality as a step function, called a hook handler. + +Medusa exposes hooks in many of its workflows that are used in its API routes. You can consume those hooks to add your custom logic. + +Refer to the [Workflows Reference](https://docs.medusajs.com/resources/medusa-workflows-reference/index.html.md) to view all workflows and their hooks. + +You want to perform a custom action during a workflow's execution, such as when a product is created. + +*** + +## How to Consume a Hook? + +A workflow has a special `hooks` property which is an object that holds its hooks. + +So, in a TypeScript or JavaScript file created under the `src/workflows/hooks` directory: + +- Import the workflow. +- Access its hook using the `hooks` property. +- Pass the hook a step function as a parameter to consume it. + +For example, to consume the `productsCreated` hook of Medusa's `createProductsWorkflow`, create the file `src/workflows/hooks/product-created.ts` with the following content: + +```ts title="src/workflows/hooks/product-created.ts" highlights={handlerHighlights} +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" + +createProductsWorkflow.hooks.productsCreated( + async ({ products }, { container }) => { + // TODO perform an action + } +) +``` + +The `productsCreated` hook is available on the workflow's `hooks` property by its name. + +You invoke the hook, passing a step function (the hook handler) as a parameter. + +Now, when a product is created using the [Create Product API route](https://docs.medusajs.com/api/admin#products_postproducts), your hook handler is executed after the product is created. + +A hook can have only one handler. + +Refer to the [createProductsWorkflow reference](https://docs.medusajs.com/resources/references/medusa-workflows/createProductsWorkflow/index.html.md) to see at which point the hook handler is executed. + +### Hook Handler Parameter + +Since a hook handler is essentially a step function, it receives the hook's input as a first parameter, and an object holding a `container` property as a second parameter. + +Each hook has different input. For example, the `productsCreated` hook receives an object having a `products` property holding the created product. + +### Hook Handler Compensation + +Since the hook handler is a step function, you can set its compensation function as a second parameter of the hook. + +For example: + +```ts title="src/workflows/hooks/product-created.ts" +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" + +createProductsWorkflow.hooks.productsCreated( + async ({ products }, { container }) => { + // TODO perform an action + + return new StepResponse(undefined, { ids }) + }, + async ({ ids }, { container }) => { + // undo the performed action + } +) +``` + +The compensation function is executed if an error occurs in the workflow to undo the actions performed by the hook handler. + +The compensation function receives as an input the second parameter passed to the `StepResponse` returned by the step function. + +It also accepts as a second parameter an object holding a `container` property to resolve resources from the Medusa container. + +### Additional Data Property + +Medusa's workflows pass in the hook's input an `additional_data` property: + +```ts title="src/workflows/hooks/product-created.ts" highlights={[["4", "additional_data"]]} +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" + +createProductsWorkflow.hooks.productsCreated( + async ({ products, additional_data }, { container }) => { + // TODO perform an action + } +) +``` + +This property is an object that holds additional data passed to the workflow through the request sent to the API route using the workflow. + +Learn how to pass `additional_data` in requests to API routes in [this chapter](https://docs.medusajs.com/learn/fundamentals/api-routes/additional-data/index.html.md). + +### Pass Additional Data to Workflow + +You can also pass that additional data when executing the workflow. Pass it as a parameter to the `.run` method of the workflow: + +```ts title="src/workflows/hooks/product-created.ts" highlights={[["10", "additional_data"]]} +import type { MedusaRequest, MedusaResponse } from "@medusajs/framework/http" +import { createProductsWorkflow } from "@medusajs/medusa/core-flows" + +export async function POST(req: MedusaRequest, res: MedusaResponse) { + await createProductsWorkflow(req.scope).run({ + input: { + products: [ + // ... + ], + additional_data: { + custom_field: "test", + }, + }, + }) +} +``` + +Your hook handler then receives that passed data in the `additional_data` object. + + +# Workflow Timeout + +In this chapter, you’ll learn how to set a timeout for workflows and steps. + +## What is a Workflow Timeout? + +By default, a workflow doesn’t have a timeout. It continues execution until it’s finished or an error occurs. + +You can configure a workflow’s timeout to indicate how long the workflow can execute. If a workflow's execution time passes the configured timeout, it is failed and an error is thrown. + +### Timeout Doesn't Stop Step Execution + +Configuring a timeout doesn't stop the execution of a step in progress. The timeout only affects the status of the workflow and its result. + +*** + +## Configure Workflow Timeout + +The `createWorkflow` function can accept a configuration object instead of the workflow’s name. + +In the configuration object, you pass a `timeout` property, whose value is a number indicating the timeout in seconds. + +For example: + +```ts title="src/workflows/hello-world.ts" highlights={[["16"]]} collapsibleLines="1-13" expandButtonLabel="Show More" +import { + createStep, + createWorkflow, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async () => { + // ... + } +) + +const myWorkflow = createWorkflow({ + name: "hello-world", + timeout: 2, // 2 seconds +}, function () { + const str1 = step1() + + return new WorkflowResponse({ + message: str1, + }) +}) + +export default myWorkflow + +``` + +This workflow's executions fail if they run longer than two seconds. + +A workflow’s timeout error is returned in the `errors` property of the workflow’s execution, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). The error’s name is `TransactionTimeoutError`. + +*** + +## Configure Step Timeout + +Alternatively, you can configure the timeout for a step rather than the entire workflow. + +As mentioned in the previous section, the timeout doesn't stop the execution of the step. It only affects the step's status and output. + +The step’s configuration object accepts a `timeout` property, whose value is a number indicating the timeout in seconds. + +For example: + +```tsx +const step1 = createStep( + { + name: "step-1", + timeout: 2, // 2 seconds + }, + async () => { + // ... + } +) +``` + +This step's executions fail if they run longer than two seconds. + +A step’s timeout error is returned in the `errors` property of the workflow’s execution, as explained in [this chapter](https://docs.medusajs.com/learn/fundamentals/workflows/errors/index.html.md). The error’s name is `TransactionStepTimeoutError`. + + +# Example: Write Integration Tests for Workflows + +In this chapter, you'll learn how to write integration tests for workflows using [medusaIntegrationTestRunner](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools/integration-tests/index.html.md) from Medusa's Testing Framwork. + +### Prerequisites + +- [Testing Tools Setup](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools/index.html.md) + +## Write Integration Test for Workflow + +Consider you have the following workflow defined at `src/workflows/hello-world.ts`: + +```ts title="src/workflows/hello-world.ts" +import { + createWorkflow, + createStep, + StepResponse, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep("step-1", () => { + return new StepResponse("Hello, World!") +}) + +export const helloWorldWorkflow = createWorkflow( + "hello-world-workflow", + () => { + const message = step1() + + return new WorkflowResponse(message) + } +) +``` + +To write a test for this workflow, create the file `integration-tests/http/workflow.spec.ts` with the following content: + +```ts title="integration-tests/http/workflow.spec.ts" +import { medusaIntegrationTestRunner } from "@medusajs/test-utils" +import { helloWorldWorkflow } from "../../src/workflows/hello-world" + +medusaIntegrationTestRunner({ + testSuite: ({ getContainer }) => { + describe("Test hello-world workflow", () => { + it("returns message", async () => { + const { result } = await helloWorldWorkflow(getContainer()) + .run() + + expect(result).toEqual("Hello, World!") + }) + }) + }, +}) + +jest.setTimeout(60 * 1000) +``` + +You use the `medusaIntegrationTestRunner` to write an integration test for the workflow. The test pases if the workflow returns the string `"Hello, World!"`. + +### Jest Timeout + +Since your tests connect to the database and perform actions that require more time than the typical tests, make sure to increase the timeout in your test: + +```ts title="integration-tests/http/custom-routes.spec.ts" +// in your test's file +jest.setTimeout(60 * 1000) +``` + +*** + +## Run Test + +Run the following command to run your tests: + +```bash npm2yarn +npm run test:integration +``` + +If you don't have a `test:integration` script in `package.json`, refer to the [Medusa Testing Tools chapter](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools#add-test-commands/index.html.md). + +This runs your Medusa application and runs the tests available under the `integrations/http` directory. + +*** + +## Test That a Workflow Throws an Error + +You might want to test that a workflow throws an error in certain cases. To test this: + +- Disable the `throwOnError` option when executing the workflow. +- Use the returned `errors` property to check what errors were thrown. + +For example, if you have a step that throws this error: + +```ts title="src/workflows/hello-world.ts" +import { MedusaError } from "@medusajs/framework/utils" +import { createStep } from "@medusajs/framework/workflows-sdk" + +const step1 = createStep("step-1", () => { + throw new MedusaError(MedusaError.Types.NOT_FOUND, "Item doesn't exist") +}) +``` + +You can write the following test to ensure that the workflow throws that error: + +```ts title="integration-tests/http/workflow.spec.ts" +import { medusaIntegrationTestRunner } from "@medusajs/test-utils" +import { helloWorldWorkflow } from "../../src/workflows/hello-world" + +medusaIntegrationTestRunner({ + testSuite: ({ getContainer }) => { + describe("Test hello-world workflow", () => { + it("returns message", async () => { + const { errors } = await helloWorldWorkflow(getContainer()) + .run({ + throwOnError: false, + }) + + expect(errors.length).toBeGreaterThan(0) + expect(errors[0].error.message).toBe("Item doesn't exist") + }) + }) + }, +}) + +jest.setTimeout(60 * 1000) +``` + +The `errors` property contains an array of errors thrown during the execution of the workflow. Each error item has an `error` object, being the error thrown. + +If you threw a `MedusaError`, then you can check the error message in `errors[0].error.message`. + + # Example: Write Integration Tests for API Routes In this chapter, you'll learn how to write integration tests for API routes using [medusaIntegrationTestRunner](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools/integration-tests/index.html.md) from Medusa's Testing Framework. @@ -18750,137 +18881,6 @@ If you don't have a `test:integration:modules` script in `package.json`, refer t This runs your Medusa application and runs the tests available in any `__tests__` directory under the `src/modules` directory. -# Example: Write Integration Tests for Workflows - -In this chapter, you'll learn how to write integration tests for workflows using [medusaIntegrationTestRunner](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools/integration-tests/index.html.md) from Medusa's Testing Framwork. - -### Prerequisites - -- [Testing Tools Setup](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools/index.html.md) - -## Write Integration Test for Workflow - -Consider you have the following workflow defined at `src/workflows/hello-world.ts`: - -```ts title="src/workflows/hello-world.ts" -import { - createWorkflow, - createStep, - StepResponse, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep("step-1", () => { - return new StepResponse("Hello, World!") -}) - -export const helloWorldWorkflow = createWorkflow( - "hello-world-workflow", - () => { - const message = step1() - - return new WorkflowResponse(message) - } -) -``` - -To write a test for this workflow, create the file `integration-tests/http/workflow.spec.ts` with the following content: - -```ts title="integration-tests/http/workflow.spec.ts" -import { medusaIntegrationTestRunner } from "@medusajs/test-utils" -import { helloWorldWorkflow } from "../../src/workflows/hello-world" - -medusaIntegrationTestRunner({ - testSuite: ({ getContainer }) => { - describe("Test hello-world workflow", () => { - it("returns message", async () => { - const { result } = await helloWorldWorkflow(getContainer()) - .run() - - expect(result).toEqual("Hello, World!") - }) - }) - }, -}) - -jest.setTimeout(60 * 1000) -``` - -You use the `medusaIntegrationTestRunner` to write an integration test for the workflow. The test pases if the workflow returns the string `"Hello, World!"`. - -### Jest Timeout - -Since your tests connect to the database and perform actions that require more time than the typical tests, make sure to increase the timeout in your test: - -```ts title="integration-tests/http/custom-routes.spec.ts" -// in your test's file -jest.setTimeout(60 * 1000) -``` - -*** - -## Run Test - -Run the following command to run your tests: - -```bash npm2yarn -npm run test:integration -``` - -If you don't have a `test:integration` script in `package.json`, refer to the [Medusa Testing Tools chapter](https://docs.medusajs.com/learn/debugging-and-testing/testing-tools#add-test-commands/index.html.md). - -This runs your Medusa application and runs the tests available under the `integrations/http` directory. - -*** - -## Test That a Workflow Throws an Error - -You might want to test that a workflow throws an error in certain cases. To test this: - -- Disable the `throwOnError` option when executing the workflow. -- Use the returned `errors` property to check what errors were thrown. - -For example, if you have a step that throws this error: - -```ts title="src/workflows/hello-world.ts" -import { MedusaError } from "@medusajs/framework/utils" -import { createStep } from "@medusajs/framework/workflows-sdk" - -const step1 = createStep("step-1", () => { - throw new MedusaError(MedusaError.Types.NOT_FOUND, "Item doesn't exist") -}) -``` - -You can write the following test to ensure that the workflow throws that error: - -```ts title="integration-tests/http/workflow.spec.ts" -import { medusaIntegrationTestRunner } from "@medusajs/test-utils" -import { helloWorldWorkflow } from "../../src/workflows/hello-world" - -medusaIntegrationTestRunner({ - testSuite: ({ getContainer }) => { - describe("Test hello-world workflow", () => { - it("returns message", async () => { - const { errors } = await helloWorldWorkflow(getContainer()) - .run({ - throwOnError: false, - }) - - expect(errors.length).toBeGreaterThan(0) - expect(errors[0].error.message).toBe("Item doesn't exist") - }) - }) - }, -}) - -jest.setTimeout(60 * 1000) -``` - -The `errors` property contains an array of errors thrown during the execution of the workflow. Each error item has an `error` object, being the error thrown. - -If you threw a `MedusaError`, then you can check the error message in `errors[0].error.message`. - - # Commerce Modules In this section of the documentation, you'll find guides and references related to Medusa's Commerce Modules. @@ -18921,6 +18921,136 @@ The Commerce Modules can be used in many use cases, including: - Node.js Application: Use the Commerce Modules in any Node.js application by installing it with NPM. +# Auth Module + +In this section of the documentation, you will find resources to learn more about the Auth Module and how to use it in your application. + +Medusa has auth related features available out-of-the-box through the Auth Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Auth Module. + +Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). + +## Auth Features + +- [Basic User Authentication](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#1-basic-authentication-flow/index.html.md): Authenticate users using their email and password credentials. +- [Third-Party and Social Authentication](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#2-third-party-service-authenticate-flow/index.html.md): Authenticate users using third-party services and social platforms, such as [Google](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/auth-providers/google/index.html.md) and [GitHub](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/auth-providers/github/index.html.md). +- [Authenticate Custom Actor Types](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/create-actor-type/index.html.md): Create custom user or actor types, such as managers, authenticate them in your application, and guard routes based on the custom user types. +- [Custom Authentication Providers](https://docs.medusajs.com/references/auth/provider/index.html.md): Integrate third-party services with custom authentication providors. + +*** + +## How to Use the Auth Module + +In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. + +For example: + +```ts title="src/workflows/authenticate-user.ts" highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { Modules, MedusaError } from "@medusajs/framework/utils" +import { MedusaRequest } from "@medusajs/framework/http" +import { AuthenticationInput } from "@medusajs/framework/types" + +type Input = { + req: MedusaRequest +} + +const authenticateUserStep = createStep( + "authenticate-user", + async ({ req }: Input, { container }) => { + const authModuleService = container.resolve(Modules.AUTH) + + const { success, authIdentity, error } = await authModuleService + .authenticate( + "emailpass", + { + url: req.url, + headers: req.headers, + query: req.query, + body: req.body, + authScope: "admin", // or custom actor type + protocol: req.protocol, + } as AuthenticationInput + ) + + if (!success) { + // incorrect authentication details + throw new MedusaError( + MedusaError.Types.UNAUTHORIZED, + error || "Incorrect authentication details" + ) + } + + return new StepResponse({ authIdentity }, authIdentity?.id) + }, + async (authIdentityId, { container }) => { + if (!authIdentityId) { + return + } + + const authModuleService = container.resolve(Modules.AUTH) + + await authModuleService.deleteAuthIdentities([authIdentityId]) + } +) + +export const authenticateUserWorkflow = createWorkflow( + "authenticate-user", + (input: Input) => { + const { authIdentity } = authenticateUserStep(input) + + return new WorkflowResponse({ + authIdentity, + }) + } +) +``` + +You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: + +```ts title="API Route" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { authenticateUserWorkflow } from "../../workflows/authenticate-user" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await authenticateUserWorkflow(req.scope) + .run({ + req, + }) + + res.send(result) +} +``` + +Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). + +*** + +## Configure Auth Module + +The Auth Module accepts options for further configurations. Refer to [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/module-options/index.html.md) for details on the module's options. + +*** + +## Providers + +Medusa provides the following authentication providers out-of-the-box. You can use them to authenticate admin users, customers, or custom actor types. + +*** + + # API Key Module In this section of the documentation, you will find resources to learn more about the API Key Module and how to use it in your application. @@ -19369,6 +19499,154 @@ The Fulfillment Module accepts options for further configurations. Refer to [thi *** +# Currency Module + +In this section of the documentation, you will find resources to learn more about the Currency Module and how to use it in your application. + +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/store/index.html.md) to learn how to manage your store's currencies using the dashboard. + +Medusa has currency related features available out-of-the-box through the Currency Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Currency Module. + +Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). + +## Currency Features + +- [Currency Management and Retrieval](https://docs.medusajs.com/references/currency/listAndCountCurrencies/index.html.md): This module adds all common currencies to your application and allows you to retrieve them. +- [Support Currencies in Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/currency/links-to-other-modules/index.html.md): Other Commerce Modules use currency codes in their data models or operations. Use the Currency Module to retrieve a currency code and its details. + +*** + +## How to Use the Currency Module + +In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. + +For example: + +```ts title="src/workflows/retrieve-price-with-currency.ts" highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + createStep, + StepResponse, + transform, +} from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" + +const retrieveCurrencyStep = createStep( + "retrieve-currency", + async ({}, { container }) => { + const currencyModuleService = container.resolve(Modules.CURRENCY) + + const currency = await currencyModuleService + .retrieveCurrency("usd") + + return new StepResponse({ currency }) + } +) + +type Input = { + price: number +} + +export const retrievePriceWithCurrency = createWorkflow( + "create-currency", + (input: Input) => { + const { currency } = retrieveCurrencyStep() + + const formattedPrice = transform({ + input, + currency, + }, (data) => { + return `${data.currency.symbol}${data.input.price}` + }) + + return new WorkflowResponse({ + formattedPrice, + }) + } +) +``` + +You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: + +### API Route + +```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"], ["13"], ["14"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { retrievePriceWithCurrency } from "../../workflows/retrieve-price-with-currency" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await retrievePriceWithCurrency(req.scope) + .run({ + price: 10, + }) + + res.send(result) +} +``` + +### Subscriber + +```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"], ["13"], ["14"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + type SubscriberConfig, + type SubscriberArgs, +} from "@medusajs/framework" +import { retrievePriceWithCurrency } from "../workflows/retrieve-price-with-currency" + +export default async function handleUserCreated({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const { result } = await retrievePriceWithCurrency(container) + .run({ + price: 10, + }) + + console.log(result) +} + +export const config: SubscriberConfig = { + event: "user.created", +} +``` + +### Scheduled Job + +```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"], ["9"], ["10"]]} +import { MedusaContainer } from "@medusajs/framework/types" +import { retrievePriceWithCurrency } from "../workflows/retrieve-price-with-currency" + +export default async function myCustomJob( + container: MedusaContainer +) { + const { result } = await retrievePriceWithCurrency(container) + .run({ + price: 10, + }) + + console.log(result) +} + +export const config = { + name: "run-once-a-day", + schedule: `0 0 * * *`, +} +``` + +Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). + +*** + + # Inventory Module In this section of the documentation, you will find resources to learn more about the Inventory Module and how to use it in your application. @@ -19513,6 +19791,156 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** +# Cart Module + +In this section of the documentation, you will find resources to learn more about the Cart Module and how to use it in your application. + +Medusa has cart related features available out-of-the-box through the Cart Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Cart Module. + +Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). + +## Cart Features + +- [Cart Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/concepts/index.html.md): Store and manage carts, including their addresses, line items, shipping methods, and more. +- [Apply Promotion Adjustments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/promotions/index.html.md): Apply promotions or discounts to line items and shipping methods by adding adjustment lines that are factored into their subtotals. +- [Apply Tax Lines](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/tax-lines/index.html.md): Apply tax lines to line items and shipping methods. +- [Cart Scoping](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/links-to-other-modules/index.html.md): When used in the Medusa application, Medusa creates links to other Commerce Modules, scoping a cart to a sales channel, region, and a customer. + +*** + +## How to Use the Cart Module + +In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. + +For example: + +```ts title="src/workflows/create-cart.ts" highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" + +const createCartStep = createStep( + "create-cart", + async ({}, { container }) => { + const cartModuleService = container.resolve(Modules.CART) + + const cart = await cartModuleService.createCarts({ + currency_code: "usd", + shipping_address: { + address_1: "1512 Barataria Blvd", + country_code: "us", + }, + items: [ + { + title: "Shirt", + unit_price: 1000, + quantity: 1, + }, + ], + }) + + return new StepResponse({ cart }, cart.id) + }, + async (cartId, { container }) => { + if (!cartId) { + return + } + const cartModuleService = container.resolve(Modules.CART) + + await cartModuleService.deleteCarts([cartId]) + } +) + +export const createCartWorkflow = createWorkflow( + "create-cart", + () => { + const { cart } = createCartStep() + + return new WorkflowResponse({ + cart, + }) + } +) +``` + +You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: + +### API Route + +```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { createCartWorkflow } from "../../workflows/create-cart" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await createCartWorkflow(req.scope) + .run() + + res.send(result) +} +``` + +### Subscriber + +```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + type SubscriberConfig, + type SubscriberArgs, +} from "@medusajs/framework" +import { createCartWorkflow } from "../workflows/create-cart" + +export default async function handleUserCreated({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const { result } = await createCartWorkflow(container) + .run() + + console.log(result) +} + +export const config: SubscriberConfig = { + event: "user.created", +} +``` + +### Scheduled Job + +```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} +import { MedusaContainer } from "@medusajs/framework/types" +import { createCartWorkflow } from "../workflows/create-cart" + +export default async function myCustomJob( + container: MedusaContainer +) { + const { result } = await createCartWorkflow(container) + .run() + + console.log(result) +} + +export const config = { + name: "run-once-a-day", + schedule: `0 0 * * *`, +} +``` + +Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). + +*** + + # Order Module In this section of the documentation, you will find resources to learn more about the Order Module and how to use it in your application. @@ -19669,309 +20097,6 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** -# Currency Module - -In this section of the documentation, you will find resources to learn more about the Currency Module and how to use it in your application. - -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/store/index.html.md) to learn how to manage your store's currencies using the dashboard. - -Medusa has currency related features available out-of-the-box through the Currency Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Currency Module. - -Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). - -## Currency Features - -- [Currency Management and Retrieval](https://docs.medusajs.com/references/currency/listAndCountCurrencies/index.html.md): This module adds all common currencies to your application and allows you to retrieve them. -- [Support Currencies in Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/currency/links-to-other-modules/index.html.md): Other Commerce Modules use currency codes in their data models or operations. Use the Currency Module to retrieve a currency code and its details. - -*** - -## How to Use the Currency Module - -In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. - -For example: - -```ts title="src/workflows/retrieve-price-with-currency.ts" highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - createStep, - StepResponse, - transform, -} from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" - -const retrieveCurrencyStep = createStep( - "retrieve-currency", - async ({}, { container }) => { - const currencyModuleService = container.resolve(Modules.CURRENCY) - - const currency = await currencyModuleService - .retrieveCurrency("usd") - - return new StepResponse({ currency }) - } -) - -type Input = { - price: number -} - -export const retrievePriceWithCurrency = createWorkflow( - "create-currency", - (input: Input) => { - const { currency } = retrieveCurrencyStep() - - const formattedPrice = transform({ - input, - currency, - }, (data) => { - return `${data.currency.symbol}${data.input.price}` - }) - - return new WorkflowResponse({ - formattedPrice, - }) - } -) -``` - -You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: - -### API Route - -```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"], ["13"], ["14"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { retrievePriceWithCurrency } from "../../workflows/retrieve-price-with-currency" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await retrievePriceWithCurrency(req.scope) - .run({ - price: 10, - }) - - res.send(result) -} -``` - -### Subscriber - -```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"], ["13"], ["14"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - type SubscriberConfig, - type SubscriberArgs, -} from "@medusajs/framework" -import { retrievePriceWithCurrency } from "../workflows/retrieve-price-with-currency" - -export default async function handleUserCreated({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const { result } = await retrievePriceWithCurrency(container) - .run({ - price: 10, - }) - - console.log(result) -} - -export const config: SubscriberConfig = { - event: "user.created", -} -``` - -### Scheduled Job - -```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"], ["9"], ["10"]]} -import { MedusaContainer } from "@medusajs/framework/types" -import { retrievePriceWithCurrency } from "../workflows/retrieve-price-with-currency" - -export default async function myCustomJob( - container: MedusaContainer -) { - const { result } = await retrievePriceWithCurrency(container) - .run({ - price: 10, - }) - - console.log(result) -} - -export const config = { - name: "run-once-a-day", - schedule: `0 0 * * *`, -} -``` - -Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). - -*** - - -# Payment Module - -In this section of the documentation, you will find resources to learn more about the Payment Module and how to use it in your application. - -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/payments/index.html.md) to learn how to manage order payments using the dashboard. - -Medusa has payment related features available out-of-the-box through the Payment Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Payment Module. - -Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). - -## Payment Features - -- [Authorize, Capture, and Refund Payments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment/index.html.md): Authorize, capture, and refund payments for a single resource. -- [Payment Collection Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-collection/index.html.md): Store and manage all payments of a single resources, such as a cart, in payment collections. -- [Integrate Third-Party Payment Providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md): Use payment providers like [Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md) to handle and process payments, or integrate custom payment providers. -- [Saved Payment Methods](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/account-holder/index.html.md): Save payment methods for customers in third-party payment providers. -- [Handle Webhook Events](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/webhook-events/index.html.md): Handle webhook events from third-party providers and process the associated payment. - -*** - -## How to Use the Payment Module - -In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. - -For example: - -```ts title="src/workflows/create-payment-collection.ts" highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" - -const createPaymentCollectionStep = createStep( - "create-payment-collection", - async ({}, { container }) => { - const paymentModuleService = container.resolve(Modules.PAYMENT) - - const paymentCollection = await paymentModuleService.createPaymentCollections({ - currency_code: "usd", - amount: 5000, - }) - - return new StepResponse({ paymentCollection }, paymentCollection.id) - }, - async (paymentCollectionId, { container }) => { - if (!paymentCollectionId) { - return - } - const paymentModuleService = container.resolve(Modules.PAYMENT) - - await paymentModuleService.deletePaymentCollections([paymentCollectionId]) - } -) - -export const createPaymentCollectionWorkflow = createWorkflow( - "create-payment-collection", - () => { - const { paymentCollection } = createPaymentCollectionStep() - - return new WorkflowResponse({ - paymentCollection, - }) - } -) -``` - -You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: - -### API Route - -```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createPaymentCollectionWorkflow } from "../../workflows/create-payment-collection" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await createPaymentCollectionWorkflow(req.scope) - .run() - - res.send(result) -} -``` - -### Subscriber - -```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - type SubscriberConfig, - type SubscriberArgs, -} from "@medusajs/framework" -import { createPaymentCollectionWorkflow } from "../workflows/create-payment-collection" - -export default async function handleUserCreated({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const { result } = await createPaymentCollectionWorkflow(container) - .run() - - console.log(result) -} - -export const config: SubscriberConfig = { - event: "user.created", -} -``` - -### Scheduled Job - -```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} -import { MedusaContainer } from "@medusajs/framework/types" -import { createPaymentCollectionWorkflow } from "../workflows/create-payment-collection" - -export default async function myCustomJob( - container: MedusaContainer -) { - const { result } = await createPaymentCollectionWorkflow(container) - .run() - - console.log(result) -} - -export const config = { - name: "run-once-a-day", - schedule: `0 0 * * *`, -} -``` - -Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). - -*** - -## Configure Payment Module - -The Payment Module accepts options for further configurations. Refer to [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/module-options/index.html.md) for details on the module's options. - -*** - -## Providers - -Medusa provides the following payment providers out-of-the-box. You can use them to process payments for orders, returns, and other resources. - -*** - - # Pricing Module In this section of the documentation, you will find resources to learn more about the Pricing Module and how to use it in your application. @@ -20126,6 +20251,297 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** +# Promotion Module + +In this section of the documentation, you will find resources to learn more about the Promotion Module and how to use it in your application. + +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/index.html.md) to learn how to manage promotions using the dashboard. + +Medusa has promotion related features available out-of-the-box through the Promotion Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Promotion Module. + +Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). + +## Promotion Features + +- [Discount Functionalities](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/concepts/index.html.md): A promotion discounts an amount or percentage of a cart's items, shipping methods, or the entire order. +- [Flexible Promotion Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/concepts#flexible-rules/index.html.md): A promotion has rules that restricts when the promotion is applied. +- [Campaign Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/campaign/index.html.md): A campaign combines promotions under the same conditions, such as start and end dates, and budget configurations. +- [Apply Promotion on Carts and Orders](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/actions/index.html.md): Apply promotions on carts and orders to discount items, shipping methods, or the entire order. + +*** + +## How to Use the Promotion Module + +In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. + +For example: + +```ts title="src/workflows/create-promotion.ts" highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" + +const createPromotionStep = createStep( + "create-promotion", + async ({}, { container }) => { + const promotionModuleService = container.resolve(Modules.PROMOTION) + + const promotion = await promotionModuleService.createPromotions({ + code: "10%OFF", + type: "standard", + application_method: { + type: "percentage", + target_type: "order", + value: 10, + currency_code: "usd", + }, + }) + + return new StepResponse({ promotion }, promotion.id) + }, + async (promotionId, { container }) => { + if (!promotionId) { + return + } + const promotionModuleService = container.resolve(Modules.PROMOTION) + + await promotionModuleService.deletePromotions(promotionId) + } +) + +export const createPromotionWorkflow = createWorkflow( + "create-promotion", + () => { + const { promotion } = createPromotionStep() + + return new WorkflowResponse({ + promotion, + }) + } +) +``` + +You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: + +### API Route + +```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { createPromotionWorkflow } from "../../workflows/create-cart" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await createPromotionWorkflow(req.scope) + .run() + + res.send(result) +} +``` + +### Subscriber + +```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + type SubscriberConfig, + type SubscriberArgs, +} from "@medusajs/framework" +import { createPromotionWorkflow } from "../workflows/create-cart" + +export default async function handleUserCreated({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const { result } = await createPromotionWorkflow(container) + .run() + + console.log(result) +} + +export const config: SubscriberConfig = { + event: "user.created", +} +``` + +### Scheduled Job + +```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} +import { MedusaContainer } from "@medusajs/framework/types" +import { createPromotionWorkflow } from "../workflows/create-cart" + +export default async function myCustomJob( + container: MedusaContainer +) { + const { result } = await createPromotionWorkflow(container) + .run() + + console.log(result) +} + +export const config = { + name: "run-once-a-day", + schedule: `0 0 * * *`, +} +``` + +Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). + +*** + + +# Region Module + +In this section of the documentation, you will find resources to learn more about the Region Module and how to use it in your application. + +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/regions/index.html.md) to learn how to manage regions using the dashboard. + +Medusa has region related features available out-of-the-box through the Region Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Region Module. + +Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). + +*** + +## Region Features + +- [Region Management](https://docs.medusajs.com/references/region/models/Region/index.html.md): Manage regions in your store. You can create regions with different currencies and settings. +- [Multi-Currency Support](https://docs.medusajs.com/references/region/models/Region/index.html.md): Each region has a currency. You can support multiple currencies in your store by creating multiple regions. +- [Different Settings Per Region](https://docs.medusajs.com/references/region/models/Region/index.html.md): Each region has its own settings, such as what countries belong to a region or its tax settings. + +*** + +## How to Use Region Module's Service + +In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. + +For example: + +```ts title="src/workflows/create-region.ts" highlights={highlights} +import { + createWorkflow, + WorkflowResponse, + createStep, + StepResponse, +} from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" + +const createRegionStep = createStep( + "create-region", + async ({}, { container }) => { + const regionModuleService = container.resolve(Modules.REGION) + + const region = await regionModuleService.createRegions({ + name: "Europe", + currency_code: "eur", + }) + + return new StepResponse({ region }, region.id) + }, + async (regionId, { container }) => { + if (!regionId) { + return + } + const regionModuleService = container.resolve(Modules.REGION) + + await regionModuleService.deleteRegions([regionId]) + } +) + +export const createRegionWorkflow = createWorkflow( + "create-region", + () => { + const { region } = createRegionStep() + + return new WorkflowResponse({ + region, + }) + } +) +``` + +You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: + +### API Route + +```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import type { + MedusaRequest, + MedusaResponse, +} from "@medusajs/framework/http" +import { createRegionWorkflow } from "../../workflows/create-region" + +export async function GET( + req: MedusaRequest, + res: MedusaResponse +) { + const { result } = await createRegionWorkflow(req.scope) + .run() + + res.send(result) +} +``` + +### Subscriber + +```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + type SubscriberConfig, + type SubscriberArgs, +} from "@medusajs/framework" +import { createRegionWorkflow } from "../workflows/create-region" + +export default async function handleUserCreated({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const { result } = await createRegionWorkflow(container) + .run() + + console.log(result) +} + +export const config: SubscriberConfig = { + event: "user.created", +} +``` + +### Scheduled Job + +```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} +import { MedusaContainer } from "@medusajs/framework/types" +import { createRegionWorkflow } from "../workflows/create-region" + +export default async function myCustomJob( + container: MedusaContainer +) { + const { result } = await createRegionWorkflow(container) + .run() + + console.log(result) +} + +export const config = { + name: "run-once-a-day", + schedule: `0 0 * * *`, +} +``` + +Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). + +*** + + # Product Module In this section of the documentation, you will find resources to learn more about the Product Module and how to use it in your application. @@ -20281,27 +20697,24 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** -# Region Module +# Stock Location Module -In this section of the documentation, you will find resources to learn more about the Region Module and how to use it in your application. +In this section of the documentation, you will find resources to learn more about the Stock Location Module and how to use it in your application. -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/regions/index.html.md) to learn how to manage regions using the dashboard. +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/locations-and-shipping/index.html.md) to learn how to manage stock locations using the dashboard. -Medusa has region related features available out-of-the-box through the Region Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Region Module. +Medusa has stock location related features available out-of-the-box through the Stock Location Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Stock Location Module. Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). -*** +## Stock Location Features -## Region Features - -- [Region Management](https://docs.medusajs.com/references/region/models/Region/index.html.md): Manage regions in your store. You can create regions with different currencies and settings. -- [Multi-Currency Support](https://docs.medusajs.com/references/region/models/Region/index.html.md): Each region has a currency. You can support multiple currencies in your store by creating multiple regions. -- [Different Settings Per Region](https://docs.medusajs.com/references/region/models/Region/index.html.md): Each region has its own settings, such as what countries belong to a region or its tax settings. +- [Stock Location Management](https://docs.medusajs.com/references/stock-location-next/models/index.html.md): Store and manage stock locations. Medusa links stock locations with data models of other modules that require a location, such as the [Inventory Module's InventoryLevel](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/links-to-other-modules/index.html.md). +- [Address Management](https://docs.medusajs.com/references/stock-location-next/models/StockLocationAddress/index.html.md): Manage the address of each stock location. *** -## How to Use Region Module's Service +## How to Use Stock Location Module's Service In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. @@ -20309,7 +20722,7 @@ You can build custom workflows and steps. You can also re-use Medusa's workflows For example: -```ts title="src/workflows/create-region.ts" highlights={highlights} +```ts title="src/workflows/create-stock-location.ts" highlights={highlights} import { createWorkflow, WorkflowResponse, @@ -20318,36 +20731,33 @@ import { } from "@medusajs/framework/workflows-sdk" import { Modules } from "@medusajs/framework/utils" -const createRegionStep = createStep( - "create-region", +const createStockLocationStep = createStep( + "create-stock-location", async ({}, { container }) => { - const regionModuleService = container.resolve(Modules.REGION) + const stockLocationModuleService = container.resolve(Modules.STOCK_LOCATION) - const region = await regionModuleService.createRegions({ - name: "Europe", - currency_code: "eur", + const stockLocation = await stockLocationModuleService.createStockLocations({ + name: "Warehouse 1", }) - return new StepResponse({ region }, region.id) + return new StepResponse({ stockLocation }, stockLocation.id) }, - async (regionId, { container }) => { - if (!regionId) { + async (stockLocationId, { container }) => { + if (!stockLocationId) { return } - const regionModuleService = container.resolve(Modules.REGION) + const stockLocationModuleService = container.resolve(Modules.STOCK_LOCATION) - await regionModuleService.deleteRegions([regionId]) + await stockLocationModuleService.deleteStockLocations([stockLocationId]) } ) -export const createRegionWorkflow = createWorkflow( - "create-region", +export const createStockLocationWorkflow = createWorkflow( + "create-stock-location", () => { - const { region } = createRegionStep() + const { stockLocation } = createStockLocationStep() - return new WorkflowResponse({ - region, - }) + return new WorkflowResponse({ stockLocation }) } ) ``` @@ -20361,13 +20771,13 @@ import type { MedusaRequest, MedusaResponse, } from "@medusajs/framework/http" -import { createRegionWorkflow } from "../../workflows/create-region" +import { createStockLocationWorkflow } from "../../workflows/create-stock-location" export async function GET( req: MedusaRequest, res: MedusaResponse ) { - const { result } = await createRegionWorkflow(req.scope) + const { result } = await createStockLocationWorkflow(req.scope) .run() res.send(result) @@ -20381,13 +20791,13 @@ import { type SubscriberConfig, type SubscriberArgs, } from "@medusajs/framework" -import { createRegionWorkflow } from "../workflows/create-region" +import { createStockLocationWorkflow } from "../workflows/create-stock-location" export default async function handleUserCreated({ event: { data }, container, }: SubscriberArgs<{ id: string }>) { - const { result } = await createRegionWorkflow(container) + const { result } = await createStockLocationWorkflow(container) .run() console.log(result) @@ -20402,160 +20812,12 @@ export const config: SubscriberConfig = { ```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} import { MedusaContainer } from "@medusajs/framework/types" -import { createRegionWorkflow } from "../workflows/create-region" +import { createStockLocationWorkflow } from "../workflows/create-stock-location" export default async function myCustomJob( container: MedusaContainer ) { - const { result } = await createRegionWorkflow(container) - .run() - - console.log(result) -} - -export const config = { - name: "run-once-a-day", - schedule: `0 0 * * *`, -} -``` - -Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). - -*** - - -# Promotion Module - -In this section of the documentation, you will find resources to learn more about the Promotion Module and how to use it in your application. - -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/index.html.md) to learn how to manage promotions using the dashboard. - -Medusa has promotion related features available out-of-the-box through the Promotion Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Promotion Module. - -Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). - -## Promotion Features - -- [Discount Functionalities](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/concepts/index.html.md): A promotion discounts an amount or percentage of a cart's items, shipping methods, or the entire order. -- [Flexible Promotion Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/concepts#flexible-rules/index.html.md): A promotion has rules that restricts when the promotion is applied. -- [Campaign Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/campaign/index.html.md): A campaign combines promotions under the same conditions, such as start and end dates, and budget configurations. -- [Apply Promotion on Carts and Orders](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/actions/index.html.md): Apply promotions on carts and orders to discount items, shipping methods, or the entire order. - -*** - -## How to Use the Promotion Module - -In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. - -For example: - -```ts title="src/workflows/create-promotion.ts" highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" - -const createPromotionStep = createStep( - "create-promotion", - async ({}, { container }) => { - const promotionModuleService = container.resolve(Modules.PROMOTION) - - const promotion = await promotionModuleService.createPromotions({ - code: "10%OFF", - type: "standard", - application_method: { - type: "percentage", - target_type: "order", - value: 10, - currency_code: "usd", - }, - }) - - return new StepResponse({ promotion }, promotion.id) - }, - async (promotionId, { container }) => { - if (!promotionId) { - return - } - const promotionModuleService = container.resolve(Modules.PROMOTION) - - await promotionModuleService.deletePromotions(promotionId) - } -) - -export const createPromotionWorkflow = createWorkflow( - "create-promotion", - () => { - const { promotion } = createPromotionStep() - - return new WorkflowResponse({ - promotion, - }) - } -) -``` - -You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: - -### API Route - -```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createPromotionWorkflow } from "../../workflows/create-cart" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await createPromotionWorkflow(req.scope) - .run() - - res.send(result) -} -``` - -### Subscriber - -```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - type SubscriberConfig, - type SubscriberArgs, -} from "@medusajs/framework" -import { createPromotionWorkflow } from "../workflows/create-cart" - -export default async function handleUserCreated({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const { result } = await createPromotionWorkflow(container) - .run() - - console.log(result) -} - -export const config: SubscriberConfig = { - event: "user.created", -} -``` - -### Scheduled Job - -```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} -import { MedusaContainer } from "@medusajs/framework/types" -import { createPromotionWorkflow } from "../workflows/create-cart" - -export default async function myCustomJob( - container: MedusaContainer -) { - const { result } = await createPromotionWorkflow(container) + const { result } = await createStockLocationWorkflow(container) .run() console.log(result) @@ -20732,24 +20994,27 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** -# Auth Module +# Payment Module -In this section of the documentation, you will find resources to learn more about the Auth Module and how to use it in your application. +In this section of the documentation, you will find resources to learn more about the Payment Module and how to use it in your application. -Medusa has auth related features available out-of-the-box through the Auth Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Auth Module. +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/payments/index.html.md) to learn how to manage order payments using the dashboard. + +Medusa has payment related features available out-of-the-box through the Payment Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Payment Module. Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). -## Auth Features +## Payment Features -- [Basic User Authentication](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#1-basic-authentication-flow/index.html.md): Authenticate users using their email and password credentials. -- [Third-Party and Social Authentication](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#2-third-party-service-authenticate-flow/index.html.md): Authenticate users using third-party services and social platforms, such as [Google](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/auth-providers/google/index.html.md) and [GitHub](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/auth-providers/github/index.html.md). -- [Authenticate Custom Actor Types](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/create-actor-type/index.html.md): Create custom user or actor types, such as managers, authenticate them in your application, and guard routes based on the custom user types. -- [Custom Authentication Providers](https://docs.medusajs.com/references/auth/provider/index.html.md): Integrate third-party services with custom authentication providors. +- [Authorize, Capture, and Refund Payments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment/index.html.md): Authorize, capture, and refund payments for a single resource. +- [Payment Collection Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-collection/index.html.md): Store and manage all payments of a single resources, such as a cart, in payment collections. +- [Integrate Third-Party Payment Providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md): Use payment providers like [Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md) to handle and process payments, or integrate custom payment providers. +- [Saved Payment Methods](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/account-holder/index.html.md): Save payment methods for customers in third-party payment providers. +- [Handle Webhook Events](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/webhook-events/index.html.md): Handle webhook events from third-party providers and process the associated payment. *** -## How to Use the Auth Module +## How to Use the Payment Module In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. @@ -20757,67 +21022,44 @@ You can build custom workflows and steps. You can also re-use Medusa's workflows For example: -```ts title="src/workflows/authenticate-user.ts" highlights={highlights} +```ts title="src/workflows/create-payment-collection.ts" highlights={highlights} import { createWorkflow, WorkflowResponse, createStep, StepResponse, } from "@medusajs/framework/workflows-sdk" -import { Modules, MedusaError } from "@medusajs/framework/utils" -import { MedusaRequest } from "@medusajs/framework/http" -import { AuthenticationInput } from "@medusajs/framework/types" +import { Modules } from "@medusajs/framework/utils" -type Input = { - req: MedusaRequest -} +const createPaymentCollectionStep = createStep( + "create-payment-collection", + async ({}, { container }) => { + const paymentModuleService = container.resolve(Modules.PAYMENT) -const authenticateUserStep = createStep( - "authenticate-user", - async ({ req }: Input, { container }) => { - const authModuleService = container.resolve(Modules.AUTH) + const paymentCollection = await paymentModuleService.createPaymentCollections({ + currency_code: "usd", + amount: 5000, + }) - const { success, authIdentity, error } = await authModuleService - .authenticate( - "emailpass", - { - url: req.url, - headers: req.headers, - query: req.query, - body: req.body, - authScope: "admin", // or custom actor type - protocol: req.protocol, - } as AuthenticationInput - ) - - if (!success) { - // incorrect authentication details - throw new MedusaError( - MedusaError.Types.UNAUTHORIZED, - error || "Incorrect authentication details" - ) - } - - return new StepResponse({ authIdentity }, authIdentity?.id) + return new StepResponse({ paymentCollection }, paymentCollection.id) }, - async (authIdentityId, { container }) => { - if (!authIdentityId) { + async (paymentCollectionId, { container }) => { + if (!paymentCollectionId) { return } - - const authModuleService = container.resolve(Modules.AUTH) + const paymentModuleService = container.resolve(Modules.PAYMENT) - await authModuleService.deleteAuthIdentities([authIdentityId]) + await paymentModuleService.deletePaymentCollections([paymentCollectionId]) } ) -export const authenticateUserWorkflow = createWorkflow( - "authenticate-user", - (input: Input) => { - const { authIdentity } = authenticateUserStep(input) +export const createPaymentCollectionWorkflow = createWorkflow( + "create-payment-collection", + () => { + const { paymentCollection } = createPaymentCollectionStep() return new WorkflowResponse({ - authIdentity, + paymentCollection, }) } ) @@ -20825,317 +21067,84 @@ export const authenticateUserWorkflow = createWorkflow( You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: -```ts title="API Route" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +### API Route + +```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" import type { MedusaRequest, MedusaResponse, } from "@medusajs/framework/http" -import { authenticateUserWorkflow } from "../../workflows/authenticate-user" +import { createPaymentCollectionWorkflow } from "../../workflows/create-payment-collection" export async function GET( req: MedusaRequest, res: MedusaResponse ) { - const { result } = await authenticateUserWorkflow(req.scope) - .run({ - req, - }) + const { result } = await createPaymentCollectionWorkflow(req.scope) + .run() res.send(result) } ``` +### Subscriber + +```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" +import { + type SubscriberConfig, + type SubscriberArgs, +} from "@medusajs/framework" +import { createPaymentCollectionWorkflow } from "../workflows/create-payment-collection" + +export default async function handleUserCreated({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + const { result } = await createPaymentCollectionWorkflow(container) + .run() + + console.log(result) +} + +export const config: SubscriberConfig = { + event: "user.created", +} +``` + +### Scheduled Job + +```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} +import { MedusaContainer } from "@medusajs/framework/types" +import { createPaymentCollectionWorkflow } from "../workflows/create-payment-collection" + +export default async function myCustomJob( + container: MedusaContainer +) { + const { result } = await createPaymentCollectionWorkflow(container) + .run() + + console.log(result) +} + +export const config = { + name: "run-once-a-day", + schedule: `0 0 * * *`, +} +``` + Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). *** -## Configure Auth Module +## Configure Payment Module -The Auth Module accepts options for further configurations. Refer to [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/module-options/index.html.md) for details on the module's options. +The Payment Module accepts options for further configurations. Refer to [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/module-options/index.html.md) for details on the module's options. *** ## Providers -Medusa provides the following authentication providers out-of-the-box. You can use them to authenticate admin users, customers, or custom actor types. - -*** - - -# Stock Location Module - -In this section of the documentation, you will find resources to learn more about the Stock Location Module and how to use it in your application. - -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/locations-and-shipping/index.html.md) to learn how to manage stock locations using the dashboard. - -Medusa has stock location related features available out-of-the-box through the Stock Location Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Stock Location Module. - -Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). - -## Stock Location Features - -- [Stock Location Management](https://docs.medusajs.com/references/stock-location-next/models/index.html.md): Store and manage stock locations. Medusa links stock locations with data models of other modules that require a location, such as the [Inventory Module's InventoryLevel](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/links-to-other-modules/index.html.md). -- [Address Management](https://docs.medusajs.com/references/stock-location-next/models/StockLocationAddress/index.html.md): Manage the address of each stock location. - -*** - -## How to Use Stock Location Module's Service - -In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. - -For example: - -```ts title="src/workflows/create-stock-location.ts" highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" - -const createStockLocationStep = createStep( - "create-stock-location", - async ({}, { container }) => { - const stockLocationModuleService = container.resolve(Modules.STOCK_LOCATION) - - const stockLocation = await stockLocationModuleService.createStockLocations({ - name: "Warehouse 1", - }) - - return new StepResponse({ stockLocation }, stockLocation.id) - }, - async (stockLocationId, { container }) => { - if (!stockLocationId) { - return - } - const stockLocationModuleService = container.resolve(Modules.STOCK_LOCATION) - - await stockLocationModuleService.deleteStockLocations([stockLocationId]) - } -) - -export const createStockLocationWorkflow = createWorkflow( - "create-stock-location", - () => { - const { stockLocation } = createStockLocationStep() - - return new WorkflowResponse({ stockLocation }) - } -) -``` - -You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: - -### API Route - -```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createStockLocationWorkflow } from "../../workflows/create-stock-location" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await createStockLocationWorkflow(req.scope) - .run() - - res.send(result) -} -``` - -### Subscriber - -```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - type SubscriberConfig, - type SubscriberArgs, -} from "@medusajs/framework" -import { createStockLocationWorkflow } from "../workflows/create-stock-location" - -export default async function handleUserCreated({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const { result } = await createStockLocationWorkflow(container) - .run() - - console.log(result) -} - -export const config: SubscriberConfig = { - event: "user.created", -} -``` - -### Scheduled Job - -```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} -import { MedusaContainer } from "@medusajs/framework/types" -import { createStockLocationWorkflow } from "../workflows/create-stock-location" - -export default async function myCustomJob( - container: MedusaContainer -) { - const { result } = await createStockLocationWorkflow(container) - .run() - - console.log(result) -} - -export const config = { - name: "run-once-a-day", - schedule: `0 0 * * *`, -} -``` - -Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). - -*** - - -# Store Module - -In this section of the documentation, you will find resources to learn more about the Store Module and how to use it in your application. - -Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/store/index.html.md) to learn how to manage your store using the dashboard. - -Medusa has store related features available out-of-the-box through the Store Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Store Module. - -Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). - -## Store Features - -- [Store Management](https://docs.medusajs.com/references/store/models/Store/index.html.md): Create and manage stores in your application. -- [Multi-Tenancy Support](https://docs.medusajs.com/references/store/models/Store/index.html.md): Create multiple stores, each having its own configurations. - -*** - -## How to Use Store Module's Service - -In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -You can build custom workflows and steps. You can also re-use Medusa's workflows and steps, which are provided by the `@medusajs/medusa/core-flows` package. - -For example: - -```ts title="src/workflows/create-store.ts" highlights={highlights} -import { - createWorkflow, - WorkflowResponse, - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" - -const createStoreStep = createStep( - "create-store", - async ({}, { container }) => { - const storeModuleService = container.resolve(Modules.STORE) - - const store = await storeModuleService.createStores({ - name: "My Store", - supported_currencies: [{ - currency_code: "usd", - is_default: true, - }], - }) - - return new StepResponse({ store }, store.id) - }, - async (storeId, { container }) => { - if(!storeId) { - return - } - const storeModuleService = container.resolve(Modules.STORE) - - await storeModuleService.deleteStores([storeId]) - } -) - -export const createStoreWorkflow = createWorkflow( - "create-store", - () => { - const { store } = createStoreStep() - - return new WorkflowResponse({ store }) - } -) -``` - -You can then execute the workflow in your custom API routes, scheduled jobs, or subscribers: - -### API Route - -```ts title="src/api/workflow/route.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createStoreWorkflow } from "../../workflows/create-store" - -export async function GET( - req: MedusaRequest, - res: MedusaResponse -) { - const { result } = await createStoreWorkflow(req.scope) - .run() - - res.send(result) -} -``` - -### Subscriber - -```ts title="src/subscribers/user-created.ts" highlights={[["11"], ["12"]]} collapsibleLines="1-6" expandButtonLabel="Show Imports" -import { - type SubscriberConfig, - type SubscriberArgs, -} from "@medusajs/framework" -import { createStoreWorkflow } from "../workflows/create-store" - -export default async function handleUserCreated({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - const { result } = await createStoreWorkflow(container) - .run() - - console.log(result) -} - -export const config: SubscriberConfig = { - event: "user.created", -} -``` - -### Scheduled Job - -```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} -import { MedusaContainer } from "@medusajs/framework/types" -import { createStoreWorkflow } from "../workflows/create-store" - -export default async function myCustomJob( - container: MedusaContainer -) { - const { result } = await createStoreWorkflow(container) - .run() - - console.log(result) -} - -export const config = { - name: "run-once-a-day", - schedule: `0 0 * * *`, -} -``` - -Learn more about workflows in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). +Medusa provides the following payment providers out-of-the-box. You can use them to process payments for orders, returns, and other resources. *** @@ -21432,173 +21441,24 @@ The User Module accepts options for further configurations. Refer to [this docum *** -# API Key Concepts +# Store Module -In this document, you’ll learn about the different types of API keys, their expiration and verification. +In this section of the documentation, you will find resources to learn more about the Store Module and how to use it in your application. -## API Key Types +Refer to the [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/store/index.html.md) to learn how to manage your store using the dashboard. -There are two types of API keys: - -- `publishable`: A public key used in client applications, such as a storefront. -- `secret`: A secret key used for authentication and verification purposes, such as an admin user’s authentication token or a password reset token. - -The API key’s type is stored in the `type` property of the [ApiKey data model](https://docs.medusajs.com/references/api-key/models/ApiKey/index.html.md). - -*** - -## API Key Expiration - -An API key expires when it’s revoked using the [revoke method of the module’s main service](https://docs.medusajs.com/references/api-key/revoke/index.html.md). - -The associated token is no longer usable or verifiable. - -*** - -## Token Verification - -To verify a token received as an input or in a request, use the [authenticate method of the module’s main service](https://docs.medusajs.com/references/api-key/authenticate/index.html.md) which validates the token against all non-expired tokens. - - -# Links between API Key Module and Other Modules - -This document showcases the module links defined between the API Key Module and other Commerce Modules. - -## Summary - -The API Key Module has the following links to other modules: - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|ApiKey|SalesChannel|Stored - many-to-many|Learn more| - -*** - -## Sales Channel Module - -You can create a publishable API key and associate it with a sales channel. Medusa defines a link between the `ApiKey` and the `SalesChannel` data models. - -![A diagram showcasing an example of how data models from the API Key and Sales Channel modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709812064/Medusa%20Resources/sales-channel-api-key_zmqi2l.jpg) - -This is useful to avoid passing the sales channel's ID as a parameter of every request, and instead pass the publishable API key in the header of any request to the Store API route. - -Learn more about this in the [Sales Channel Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md). - -### Retrieve with Query - -To retrieve the sales channels of an API key with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: - -### query.graph - -```ts -const { data: apiKeys } = await query.graph({ - entity: "api_key", - fields: [ - "sales_channels.*", - ], -}) - -// apiKeys[0].sales_channels -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: apiKeys } = useQueryGraphStep({ - entity: "api_key", - fields: [ - "sales_channels.*", - ], -}) - -// apiKeys[0].sales_channels -``` - -### Manage with Link - -To manage the sales channels of an API key, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.API_KEY]: { - publishable_key_id: "apk_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.API_KEY]: { - publishable_key_id: "apk_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - - -# Customer Accounts - -In this document, you’ll learn how registered and unregistered accounts are distinguished in the Medusa application. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/customers/index.html.md) to learn how to manage customers using the dashboard. - -## `has_account` Property - -The [Customer data model](https://docs.medusajs.com/references/customer/models/Customer/index.html.md) has a `has_account` property, which is a boolean that indicates whether a customer is registered. - -When a guest customer places an order, a new `Customer` record is created with `has_account` set to `false`. - -When this or another guest customer registers an account with the same email, a new `Customer` record is created with `has_account` set to `true`. - -*** - -## Email Uniqueness - -The above behavior means that two `Customer` records may exist with the same email. However, the main difference is the `has_account` property's value. - -So, there can only be one guest customer (having `has_account=false`) and one registered customer (having `has_account=true`) with the same email. - - -# Cart Module - -In this section of the documentation, you will find resources to learn more about the Cart Module and how to use it in your application. - -Medusa has cart related features available out-of-the-box through the Cart Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Cart Module. +Medusa has store related features available out-of-the-box through the Store Module. A [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) is a standalone package that provides features for a single domain. Each of Medusa's commerce features are placed in Commerce Modules, such as this Store Module. Learn more about why modules are isolated in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md). -## Cart Features +## Store Features -- [Cart Management](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/concepts/index.html.md): Store and manage carts, including their addresses, line items, shipping methods, and more. -- [Apply Promotion Adjustments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/promotions/index.html.md): Apply promotions or discounts to line items and shipping methods by adding adjustment lines that are factored into their subtotals. -- [Apply Tax Lines](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/tax-lines/index.html.md): Apply tax lines to line items and shipping methods. -- [Cart Scoping](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/links-to-other-modules/index.html.md): When used in the Medusa application, Medusa creates links to other Commerce Modules, scoping a cart to a sales channel, region, and a customer. +- [Store Management](https://docs.medusajs.com/references/store/models/Store/index.html.md): Create and manage stores in your application. +- [Multi-Tenancy Support](https://docs.medusajs.com/references/store/models/Store/index.html.md): Create multiple stores, each having its own configurations. *** -## How to Use the Cart Module +## How to Use Store Module's Service In your Medusa application, you build flows around Commerce Modules. A flow is built as a [Workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), which is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. @@ -21606,7 +21466,7 @@ You can build custom workflows and steps. You can also re-use Medusa's workflows For example: -```ts title="src/workflows/create-cart.ts" highlights={highlights} +```ts title="src/workflows/create-store.ts" highlights={highlights} import { createWorkflow, WorkflowResponse, @@ -21615,46 +21475,37 @@ import { } from "@medusajs/framework/workflows-sdk" import { Modules } from "@medusajs/framework/utils" -const createCartStep = createStep( - "create-cart", +const createStoreStep = createStep( + "create-store", async ({}, { container }) => { - const cartModuleService = container.resolve(Modules.CART) + const storeModuleService = container.resolve(Modules.STORE) - const cart = await cartModuleService.createCarts({ - currency_code: "usd", - shipping_address: { - address_1: "1512 Barataria Blvd", - country_code: "us", - }, - items: [ - { - title: "Shirt", - unit_price: 1000, - quantity: 1, - }, - ], + const store = await storeModuleService.createStores({ + name: "My Store", + supported_currencies: [{ + currency_code: "usd", + is_default: true, + }], }) - return new StepResponse({ cart }, cart.id) + return new StepResponse({ store }, store.id) }, - async (cartId, { container }) => { - if (!cartId) { + async (storeId, { container }) => { + if(!storeId) { return } - const cartModuleService = container.resolve(Modules.CART) - - await cartModuleService.deleteCarts([cartId]) + const storeModuleService = container.resolve(Modules.STORE) + + await storeModuleService.deleteStores([storeId]) } ) -export const createCartWorkflow = createWorkflow( - "create-cart", +export const createStoreWorkflow = createWorkflow( + "create-store", () => { - const { cart } = createCartStep() + const { store } = createStoreStep() - return new WorkflowResponse({ - cart, - }) + return new WorkflowResponse({ store }) } ) ``` @@ -21668,13 +21519,13 @@ import type { MedusaRequest, MedusaResponse, } from "@medusajs/framework/http" -import { createCartWorkflow } from "../../workflows/create-cart" +import { createStoreWorkflow } from "../../workflows/create-store" export async function GET( req: MedusaRequest, res: MedusaResponse ) { - const { result } = await createCartWorkflow(req.scope) + const { result } = await createStoreWorkflow(req.scope) .run() res.send(result) @@ -21688,13 +21539,13 @@ import { type SubscriberConfig, type SubscriberArgs, } from "@medusajs/framework" -import { createCartWorkflow } from "../workflows/create-cart" +import { createStoreWorkflow } from "../workflows/create-store" export default async function handleUserCreated({ event: { data }, container, }: SubscriberArgs<{ id: string }>) { - const { result } = await createCartWorkflow(container) + const { result } = await createStoreWorkflow(container) .run() console.log(result) @@ -21709,12 +21560,12 @@ export const config: SubscriberConfig = { ```ts title="src/jobs/run-daily.ts" highlights={[["7"], ["8"]]} import { MedusaContainer } from "@medusajs/framework/types" -import { createCartWorkflow } from "../workflows/create-cart" +import { createStoreWorkflow } from "../workflows/create-store" export default async function myCustomJob( container: MedusaContainer ) { - const { result } = await createCartWorkflow(container) + const { result } = await createStoreWorkflow(container) .run() console.log(result) @@ -21731,5797 +21582,6 @@ Learn more about workflows in [this documentation](https://docs.medusajs.com/doc *** -# Links between Customer Module and Other Modules - -This document showcases the module links defined between the Customer Module and other Commerce Modules. - -## Summary - -The Customer Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Customer|AccountHolder|Stored - many-to-many|Learn more| -|Cart|Customer|Read-only - has one|Learn more| -|Order|Customer|Read-only - has one|Learn more| - -*** - -## Payment Module - -Medusa defines a link between the `Customer` and `AccountHolder` data models, allowing payment providers to save payment methods for a customer, if the payment provider supports it. - -This link is available starting from Medusa `v2.5.0`. - -### Retrieve with Query - -To retrieve the account holder associated with a customer with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: - -### query.graph - -```ts -const { data: customers } = await query.graph({ - entity: "customer", - fields: [ - "account_holder_link.account_holder.*", - ], -}) - -// customers[0].account_holder_link?.[0]?.account_holder -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: customers } = useQueryGraphStep({ - entity: "customer", - fields: [ - "account_holder_link.account_holder.*", - ], -}) - -// customers[0].account_holder_link?.[0]?.account_holder -``` - -### Manage with Link - -To manage the account holders of a customer, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.CUSTOMER]: { - customer_id: "cus_123", - }, - [Modules.PAYMENT]: { - account_holder_id: "acchld_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.CUSTOMER]: { - customer_id: "cus_123", - }, - [Modules.PAYMENT]: { - account_holder_id: "acchld_123", - }, -}) -``` - -*** - -## Cart Module - -Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `Customer` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the customer of a cart, and not the other way around. - -### Retrieve with Query - -To retrieve the customer of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: - -### query.graph - -```ts -const { data: carts } = await query.graph({ - entity: "cart", - fields: [ - "customer.*", - ], -}) - -// carts.customer -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: carts } = useQueryGraphStep({ - entity: "cart", - fields: [ - "customer.*", - ], -}) - -// carts.customer -``` - -*** - -## Order Module - -Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `Customer` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the customer of an order, and not the other way around. - -### Retrieve with Query - -To retrieve the customer of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "customer.*", - ], -}) - -// orders.customer -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "customer.*", - ], -}) - -// orders.customer -``` - - -# Fulfillment Concepts - -In this document, you’ll learn about some basic fulfillment concepts. - -## Fulfillment Set - -A fulfillment set is a general form or way of fulfillment. For example, shipping is a form of fulfillment, and pick-up is another form of fulfillment. Each of these can be created as fulfillment sets. - -A fulfillment set is represented by the [FulfillmentSet data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentSet/index.html.md). All other configurations, options, and management features are related to a fulfillment set, in one way or another. - -```ts -const fulfillmentSets = await fulfillmentModuleService.createFulfillmentSets( - [ - { - name: "Shipping", - type: "shipping", - }, - { - name: "Pick-up", - type: "pick-up", - }, - ] -) -``` - -*** - -## Service Zone - -A service zone is a collection of geographical zones or areas. It’s used to restrict available shipping options to a defined set of locations. - -A service zone is represented by the [ServiceZone data model](https://docs.medusajs.com/references/fulfillment/models/ServiceZone/index.html.md). It’s associated with a fulfillment set, as each service zone is specific to a form of fulfillment. For example, if a customer chooses to pick up items, you can restrict the available shipping options based on their location. - -![A diagram showcasing the relation between fulfillment sets, service zones, and geo zones](https://res.cloudinary.com/dza7lstvk/image/upload/v1712329770/Medusa%20Resources/service-zone_awmvfs.jpg) - -A service zone can have multiple geographical zones, each represented by the [GeoZone data model](https://docs.medusajs.com/references/fulfillment/models/GeoZone/index.html.md). It holds location-related details to narrow down supported areas, such as country, city, or province code. - -The province code is always in lower-case and in [ISO 3166-2 format](https://en.wikipedia.org/wiki/ISO_3166-2). - -*** - -## Shipping Profile - -A shipping profile defines a type of items that are shipped in a similar manner. For example, a `default` shipping profile is used for all item types, but the `digital` shipping profile is used for digital items that aren’t shipped and delivered conventionally. - -A shipping profile is represented by the [ShippingProfile data model](https://docs.medusajs.com/references/fulfillment/models/ShippingProfile/index.html.md). It only defines the profile’s details, but it’s associated with the shipping options available for the item type. - - -# Fulfillment Module Provider - -In this guide, you’ll learn about the Fulfillment Module Provider and how it's used. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/locations-and-shipping/locations#manage-fulfillment-providers/index.html.md) to learn how to add a fulfillment provider to a location using the dashboard. - -## What is a Fulfillment Module Provider? - -A Fulfillment Module Provider handles fulfilling items, typically using a third-party integration. - -Fulfillment Module Providers registered in the Fulfillment Module's [options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/module-options/index.html.md) are stored and represented by the [FulfillmentProvider data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentProvider/index.html.md). - -![Diagram showcasing the communication between Medusa, the Fulfillment Module Provider, and the third-party fulfillment provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746794800/Medusa%20Resources/fulfillment-provider-service_ljsqpq.jpg) - -*** - -## Default Fulfillment Provider - -Medusa provides a Manual Fulfillment Provider that acts as a placeholder fulfillment provider. It doesn't process fulfillment and delegates that to the merchant. - -This provider is installed by default in your application and you can use it to fulfill items manually. - -The identifier of the manual fulfillment provider is `fp_manual_manual`. - -*** - -## How to Create a Custom Fulfillment Provider? - -A Fulfillment Module Provider is a module whose service implements the `IFulfillmentProvider` imported from `@medusajs/framework/types`. - -The module can have multiple fulfillment provider services, where each are registered as separate fulfillment providers. - -Refer to the [Create Fulfillment Module Provider](https://docs.medusajs.com/references/fulfillment/provider/index.html.md) guide to learn how to create a Fulfillment Module Provider. - -{/* TODO add link to user guide */} - -After you create a fulfillment provider, you can choose it as the default Fulfillment Module Provider for a stock location in the Medusa Admin dashboard. - -*** - -## How are Fulfillment Providers Registered? - -### Configure Fulfillment Module's Providers - -The Fulfillment Module accepts a `providers` option that allows you to configure the providers registered in your application. - -Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/module-options/index.html.md) guide. - -### Registration on Application Start - -When the Medusa application starts, it registers the Fulfillment Module Providers defined in the `providers` option of the Fulfillment Module. - -For each Fulfillment Module Provider, the Medusa application finds all fulfillment provider services defined in them to register. - -### FulfillmentProvider Data Model - -A registered fulfillment provider is represented by the [FulfillmentProvider data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentProvider/index.html.md) in the Medusa application. - -This data model is used to reference a service in the Fulfillment Module Provider and determine whether it's installed in the application. - -![Diagram showcasing the FulfillmentProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746794803/Medusa%20Resources/fulfillment-provider-model_wo2ato.jpg) - -The `FulfillmentProvider` data model has the following properties: - -- `id`: The unique identifier of the fulfillment provider. The ID's format is `fp_{identifier}_{id}`, where: - - `identifier` is the value of the `identifier` property in the Fulfillment Module Provider's service. - - `id` is the value of the `id` property of the Fulfillment Module Provider in `medusa-config.ts`. -- `is_enabled`: A boolean indicating whether the fulfillment provider is enabled. - -### How to Remove a Fulfillment Provider? - -You can remove a registered fulfillment provider from the Medusa application by removing it from the `providers` option in the Fulfillment Module's configuration. - -Then, the next time the Medusa application starts, it will set the `is_enabled` property of the `FulfillmentProvider`'s record to `false`. This allows you to re-enable the fulfillment provider later if needed by adding it back to the `providers` option. - - -# Item Fulfillment - -In this document, you’ll learn about the concepts of item fulfillment. - -## Fulfillment Data Model - -A fulfillment is the shipping and delivery of one or more items to the customer. It’s represented by the [Fulfillment data model](https://docs.medusajs.com/references/fulfillment/models/Fulfillment/index.html.md). - -*** - -## Fulfillment Processing by a Fulfillment Provider - -A fulfillment is associated with a fulfillment provider that handles all its processing, such as creating a shipment for the fulfillment’s items. - -The fulfillment is also associated with a shipping option of that provider, which determines how the item is shipped. - -![A diagram showcasing the relation between a fulfillment, fulfillment provider, and shipping option](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331947/Medusa%20Resources/fulfillment-shipping-option_jk9ndp.jpg) - -*** - -## data Property - -The `Fulfillment` data model has a `data` property that holds any necessary data for the third-party fulfillment provider to process the fulfillment. - -For example, the `data` property can hold the ID of the fulfillment in the third-party provider. The associated fulfillment provider then uses it whenever it retrieves the fulfillment’s details. - -*** - -## Fulfillment Items - -A fulfillment is used to fulfill one or more items. Each item is represented by the `FulfillmentItem` data model. - -The fulfillment item holds details relevant to fulfilling the item, such as barcode, SKU, and quantity to fulfill. - -![A diagram showcasing the relation between fulfillment and fulfillment items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712332114/Medusa%20Resources/fulfillment-item_etzxb0.jpg) - -*** - -## Fulfillment Label - -Once a shipment is created for the fulfillment, you can store its tracking number, URL, or other related details as a label, represented by the `FulfillmentLabel` data model. - -*** - -## Fulfillment Status - -The `Fulfillment` data model has three properties to keep track of the current status of the fulfillment: - -- `packed_at`: The date the fulfillment was packed. If set, then the fulfillment has been packed. -- `shipped_at`: The date the fulfillment was shipped. If set, then the fulfillment has been shipped. -- `delivered_at`: The date the fulfillment was delivered. If set, then the fulfillment has been delivered. - - -# Links between Fulfillment Module and Other Modules - -This document showcases the module links defined between the Fulfillment Module and other Commerce Modules. - -## Summary - -The Fulfillment Module has the following links to other modules: - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Order|Fulfillment|Stored - one-to-many|Learn more| -|Return|Fulfillment|Stored - one-to-many|Learn more| -|PriceSet|ShippingOption|Stored - many-to-one|Learn more| -|Product|ShippingProfile|Stored - many-to-one|Learn more| -|StockLocation|FulfillmentProvider|Stored - one-to-many|Learn more| -|StockLocation|FulfillmentSet|Stored - one-to-many|Learn more| - -*** - -## Order Module - -The [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md) provides order-management functionalities. - -Medusa defines a link between the `Fulfillment` and `Order` data models. A fulfillment is created for an orders' items. - -![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716549903/Medusa%20Resources/order-fulfillment_h0vlps.jpg) - -A fulfillment is also created for a return's items. So, Medusa defines a link between the `Fulfillment` and `Return` data models. - -![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399052/Medusa%20Resources/Social_Media_Graphics_2024_Order_Return_vetimk.jpg) - -### Retrieve with Query - -To retrieve the order of a fulfillment with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `order.*` in `fields`: - -To retrieve the return, pass `return.*` in `fields`. - -### query.graph - -```ts -const { data: fulfillments } = await query.graph({ - entity: "fulfillment", - fields: [ - "order.*", - ], -}) - -// fulfillments.order -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: fulfillments } = useQueryGraphStep({ - entity: "fulfillment", - fields: [ - "order.*", - ], -}) - -// fulfillments.order -``` - -### Manage with Link - -To manage the order of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_id: "ful_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_id: "ful_123", - }, -}) -``` - -*** - -## Pricing Module - -The Pricing Module provides features to store, manage, and retrieve the best prices in a specified context. - -Medusa defines a link between the `PriceSet` and `ShippingOption` data models. A shipping option's price is stored as a price set. - -![A diagram showcasing an example of how data models from the Pricing and Fulfillment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716561747/Medusa%20Resources/pricing-fulfillment_spywwa.jpg) - -### Retrieve with Query - -To retrieve the price set of a shipping option with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `price_set.*` in `fields`: - -### query.graph - -```ts -const { data: shippingOptions } = await query.graph({ - entity: "shipping_option", - fields: [ - "price_set_link.*", - ], -}) - -// shippingOptions[0].price_set_link?.price_set_id -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: shippingOptions } = useQueryGraphStep({ - entity: "shipping_option", - fields: [ - "price_set_link.*", - ], -}) - -// shippingOptions[0].price_set_link?.price_set_id -``` - -### Manage with Link - -To manage the price set of a shipping option, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.FULFILLMENT]: { - shipping_option_id: "so_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.FULFILLMENT]: { - shipping_option_id: "so_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -*** - -## Product Module - -Medusa defines a link between the `ShippingProfile` data model and the `Product` data model of the Product Module. Each product must belong to a shipping profile. - -This link is introduced in [Medusa v2.5.0](https://github.com/medusajs/medusa/releases/tag/v2.5.0). - -### Retrieve with Query - -To retrieve the products of a shipping profile with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `products.*` in `fields`: - -### query.graph - -```ts -const { data: shippingProfiles } = await query.graph({ - entity: "shipping_profile", - fields: [ - "products.*", - ], -}) - -// shippingProfiles[0].products -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: shippingProfiles } = useQueryGraphStep({ - entity: "shipping_profile", - fields: [ - "products.*", - ], -}) - -// shippingProfiles[0].products -``` - -### Manage with Link - -To manage the shipping profile of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.FULFILLMENT]: { - shipping_profile_id: "sp_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.FULFILLMENT]: { - shipping_profile_id: "sp_123", - }, -}) -``` - -*** - -## Stock Location Module - -The Stock Location Module provides features to manage stock locations in a store. - -Medusa defines a link between the `FulfillmentSet` and `StockLocation` data models. A fulfillment set can be conditioned to a specific stock location. - -![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1712567101/Medusa%20Resources/fulfillment-stock-location_nlkf7e.jpg) - -Medusa also defines a link between the `FulfillmentProvider` and `StockLocation` data models to indicate the providers that can be used in a location. - -![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399492/Medusa%20Resources/fulfillment-provider-stock-location_b0mulo.jpg) - -### Retrieve with Query - -To retrieve the stock location of a fulfillment set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `location.*` in `fields`: - -To retrieve the stock location of a fulfillment provider, pass `locations.*` in `fields`. - -### query.graph - -```ts -const { data: fulfillmentSets } = await query.graph({ - entity: "fulfillment_set", - fields: [ - "location.*", - ], -}) - -// fulfillmentSets[0].location -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: fulfillmentSets } = useQueryGraphStep({ - entity: "fulfillment_set", - fields: [ - "location.*", - ], -}) - -// fulfillmentSets[0].location -``` - -### Manage with Link - -To manage the stock location of a fulfillment set, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.STOCK_LOCATION]: { - stock_location_id: "sloc_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_set_id: "fset_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.STOCK_LOCATION]: { - stock_location_id: "sloc_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_set_id: "fset_123", - }, -}) -``` - - -# Shipping Option - -In this document, you’ll learn about shipping options and their rules. - -## What’s a Shipping Option? - -A shipping option is a way of shipping an item. Each fulfillment provider provides a set of shipping options. For example, a provider may provide a shipping option for express shipping and another for standard shipping. - -When the customer places their order, they choose a shipping option to be used to fulfill their items. - -A shipping option is represented by the [ShippingOption data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOption/index.html.md). - -*** - -## Service Zone Restrictions - -A shipping option is restricted by a service zone, limiting the locations a shipping option be used in. - -For example, a fulfillment provider may have a shipping option that can be used in the United States, and another in Canada. - -![A diagram showcasing the relation between shipping options and service zones.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712330831/Medusa%20Resources/shipping-option-service-zone_pobh6k.jpg) - -Service zones can be more restrictive, such as restricting to certain cities or province codes. - -The province code is always in lower-case and in [ISO 3166-2 format](https://en.wikipedia.org/wiki/ISO_3166-2). - -![A diagram showcasing the relation between shipping options, service zones, and geo zones](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331186/Medusa%20Resources/shipping-option-service-zone-city_m5sxod.jpg) - -*** - -## Shipping Option Rules - -You can restrict shipping options by custom rules, such as the item’s weight or the customer’s group. - -You can also restrict a shipping option's price based on specific conditions. For example, you can make a shipping option's price free based on the cart's total. Learn more in the Pricing Module's [Price Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-rules#how-to-set-rules-on-a-price/index.html.md) guide. - -These rules are represented by the [ShippingOptionRule data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOptionRule/index.html.md). Its properties define the custom rule: - -- `attribute`: The name of a property or table that the rule applies to. For example, `customer_group`. -- `operator`: The operator used in the condition. For example: - - To allow multiple values, use the operator `in`, which validates that the provided values are in the rule’s values. - - To create a negation condition that considers `value` against the rule, use `nin`, which validates that the provided values aren’t in the rule’s values. - - Check out more operators in [this reference](https://docs.medusajs.com/references/fulfillment/types/fulfillment.RuleOperatorType/index.html.md). -- `value`: One or more values. - -![A diagram showcasing the relation between shipping option and shipping option rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331340/Medusa%20Resources/shipping-option-rule_oosopf.jpg) - -A shipping option can have multiple rules. For example, you can add rules to a shipping option so that it's available if the customer belongs to the VIP group and the total weight is less than 2000g. - -![A diagram showcasing how a shipping option can have multiple rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331462/Medusa%20Resources/shipping-option-rule-2_ylaqdb.jpg) - -*** - -## Shipping Profile and Types - -A shipping option belongs to a type. For example, a shipping option’s type may be `express`, while another `standard`. The type is represented by the [ShippingOptionType data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOptionType/index.html.md). - -A shipping option also belongs to a shipping profile, as each shipping profile defines the type of items to be shipped in a similar manner. - -*** - -## data Property - -When fulfilling an item, you might use a third-party fulfillment provider that requires additional custom data to be passed along from the checkout or order-creation process. - -The `ShippingOption` data model has a `data` property. It's an object that stores custom data relevant later when creating and processing a fulfillment. - - -# Fulfillment Module Options - -In this document, you'll learn about the options of the Fulfillment Module. - -## providers - -The `providers` option is an array of fulfillment module providers. - -When the Medusa application starts, these providers are registered and can be used to process fulfillments. - -For example: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/fulfillment", - options: { - providers: [ - { - resolve: `@medusajs/medusa/fulfillment-manual`, - id: "manual", - options: { - // provider options... - }, - }, - ], - }, - }, - ], -}) -``` - -The `providers` option is an array of objects that accept the following properties: - -- `resolve`: A string indicating either the package name of the module provider or the path to it relative to the `src` directory. -- `id`: A string indicating the provider's unique name or ID. -- `options`: An optional object of the module provider's options. - - -# Inventory Kits - -In this guide, you'll learn how inventory kits can be used in the Medusa application to support use cases like multi-part products, bundled products, and shared inventory across products. - -Refer to the following user guides to learn how to use the Medusa Admin dashboard to: - -- [Create Multi-Part Products](https://docs.medusajs.com/user-guide/products/create/multi-part/index.html.md). -- [Create Bundled Products](https://docs.medusajs.com/user-guide/products/create/bundle/index.html.md). - -## What is an Inventory Kit? - -An inventory kit is a collection of inventory items that are linked to a single product variant. These inventory items can be used to represent different parts of a product, or to represent a bundle of products. - -The Medusa application links inventory items from the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) to product variants in the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md). Each variant can have multiple inventory items, and these inventory items can be re-used or shared across variants. - -Using inventory kits, you can implement use cases like: - -- [Multi-part products](#multi-part-products): A product that consists of multiple parts, each with its own inventory item. -- [Bundled products](#bundled-products): A product that is sold as a bundle, where each variant in the bundle product can re-use the inventory items of another product that should be sold as part of the bundle. - -*** - -## Multi-Part Products - -Consider your store sells bicycles that consist of a frame, wheels, and seats, and you want to manage the inventory of these parts separately. - -To implement this in Medusa, you can: - -- Create inventory items for each of the different parts. -- For each bicycle product, add a variant whose inventory kit consists of the inventory items of each of the parts. - -Then, whenever a customer purchases a bicycle, the inventory of each part is updated accordingly. You can also use the `required_quantity` of the variant's inventory items to set how much quantity is consumed of the part's inventory when a bicycle is sold. For example, the bicycle's wheels require 2 wheels inventory items to be sold when a bicycle is sold. - -![Diagram showcasing how a variant is linked to multi-part inventory items](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414257/Medusa%20Resources/multi-part-product_kepbnx.jpg) - -### Create Multi-Part Product - -Using the [Medusa Admin](https://docs.medusajs.com/user-guide/products/create/multi-part/index.html.md), you can create a multi-part product by creating its inventory items first, then assigning these inventory items to the product's variant(s). - -Using [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), you can implement this by first creating the inventory items: - -```ts highlights={multiPartsHighlights1} -import { - createInventoryItemsWorkflow, - useQueryGraphStep, -} from "@medusajs/medusa/core-flows" -import { createWorkflow } from "@medusajs/framework/workflows-sdk" - -export const createMultiPartProductsWorkflow = createWorkflow( - "create-multi-part-products", - () => { - // Alternatively, you can create a stock location - const { data: stockLocations } = useQueryGraphStep({ - entity: "stock_location", - fields: ["*"], - filters: { - name: "European Warehouse", - }, - }) - - const inventoryItems = createInventoryItemsWorkflow.runAsStep({ - input: { - items: [ - { - sku: "FRAME", - title: "Frame", - location_levels: [ - { - stocked_quantity: 100, - location_id: stockLocations[0].id, - }, - ], - }, - { - sku: "WHEEL", - title: "Wheel", - location_levels: [ - { - stocked_quantity: 100, - location_id: stockLocations[0].id, - }, - ], - }, - { - sku: "SEAT", - title: "Seat", - location_levels: [ - { - stocked_quantity: 100, - location_id: stockLocations[0].id, - }, - ], - }, - ], - }, - }) - - // TODO create the product - } -) -``` - -You start by retrieving the stock location to create the inventory items in. Alternatively, you can [create a stock location](https://docs.medusajs.com/references/medusa-workflows/createStockLocationsWorkflow/index.html.md). - -Then, you create the inventory items that the product variant consists of. - -Next, create the product and pass the inventory item's IDs to the product's variant: - -```ts highlights={multiPartHighlights2} -import { - // ... - transform, -} from "@medusajs/framework/workflows-sdk" -import { - // ... - createProductsWorkflow, -} from "@medusajs/medusa/core-flows" - -export const createMultiPartProductsWorkflow = createWorkflow( - "create-multi-part-products", - () => { - // ... - - const inventoryItemIds = transform({ - inventoryItems, - }, (data) => { - return data.inventoryItems.map((inventoryItem) => { - return { - inventory_item_id: inventoryItem.id, - // can also specify required_quantity - } - }) - }) - - const products = createProductsWorkflow.runAsStep({ - input: { - products: [ - { - title: "Bicycle", - variants: [ - { - title: "Bicycle - Small", - prices: [ - { - amount: 100, - currency_code: "usd", - }, - ], - options: { - "Default Option": "Default Variant", - }, - inventory_items: inventoryItemIds, - }, - ], - options: [ - { - title: "Default Option", - values: ["Default Variant"], - }, - ], - shipping_profile_id: "sp_123", - }, - ], - }, - }) - } -) -``` - -You prepare the inventory item IDs to pass to the variant using [transform](https://docs.medusajs.com/docs/learn/fundamentals/workflows/variable-manipulation/index.html.md) from the Workflows SDK, then pass these IDs to the created product's variant. - -You can now [execute the workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows#3-execute-the-workflow/index.html.md) in [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md), [scheduled jobs](https://docs.medusajs.com/docs/learn/fundamentals/scheduled-jobs/index.html.md), or [subscribers](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md). - -*** - -## Bundled Products - -While inventory kits support bundled products, some features like custom pricing for a bundle or separate fulfillment for a bundle's items are not supported. To support those features, follow the [Bundled Products](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/recipes/bundled-products/examples/standard/index.html.md) tutorial to learn how to customize the Medusa application to add bundled products. - -Consider you have three products: shirt, pants, and shoes. You sell those products separately, but you also want to offer them as a bundle. - -![Diagram showcasing products each having their own variants and inventory](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414787/Medusa%20Resources/bundled-product-1_vmzewk.jpg) - -You can do that by creating a product, where each variant re-uses the inventory items of each of the shirt, pants, and shoes products. - -Then, when the bundled product's variant is purchased, the inventory quantity of the associated inventory items are updated. - -![Diagram showcasing a bundled product using the same inventory as the products part of the bundle](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414780/Medusa%20Resources/bundled-product_x94ca1.jpg) - -### Create Bundled Product - -You can create a bundled product in the [Medusa Admin](https://docs.medusajs.com/user-guide/products/create/bundle/index.html.md) by creating the products part of the bundle first, each having its own inventory items. Then, you create the bundled product whose variant(s) have inventory kits composed of inventory items from each of the products part of the bundle. - -Using [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), you can implement this by first creating the products part of the bundle: - -```ts highlights={bundledHighlights1} -import { - createWorkflow, -} from "@medusajs/framework/workflows-sdk" -import { - createProductsWorkflow, -} from "@medusajs/medusa/core-flows" - -export const createBundledProducts = createWorkflow( - "create-bundled-products", - () => { - const products = createProductsWorkflow.runAsStep({ - input: { - products: [ - { - title: "Shirt", - shipping_profile_id: "sp_123", - variants: [ - { - title: "Shirt", - prices: [ - { - amount: 10, - currency_code: "usd", - }, - ], - options: { - "Default Option": "Default Variant", - }, - manage_inventory: true, - }, - ], - options: [ - { - title: "Default Option", - values: ["Default Variant"], - }, - ], - }, - { - title: "Pants", - shipping_profile_id: "sp_123", - variants: [ - { - title: "Pants", - prices: [ - { - amount: 10, - currency_code: "usd", - }, - ], - options: { - "Default Option": "Default Variant", - }, - manage_inventory: true, - }, - ], - options: [ - { - title: "Default Option", - values: ["Default Variant"], - }, - ], - }, - { - title: "Shoes", - shipping_profile_id: "sp_123", - variants: [ - { - title: "Shoes", - prices: [ - { - amount: 10, - currency_code: "usd", - }, - ], - options: { - "Default Option": "Default Variant", - }, - manage_inventory: true, - }, - ], - options: [ - { - title: "Default Option", - values: ["Default Variant"], - }, - ], - }, - ], - }, - }) - - // TODO re-retrieve with inventory - } -) -``` - -You create three products and enable `manage_inventory` for their variants, which will create a default inventory item. You can also create the inventory item first for more control over the quantity as explained in [the previous section](#create-multi-part-product). - -Next, retrieve the products again but with variant information: - -```ts highlights={bundledHighlights2} -import { - // ... - transform, -} from "@medusajs/framework/workflows-sdk" -import { - useQueryGraphStep, -} from "@medusajs/medusa/core-flows" - -export const createBundledProducts = createWorkflow( - "create-bundled-products", - () => { - // ... - const productIds = transform({ - products, - }, (data) => data.products.map((product) => product.id)) - - // @ts-ignore - const { data: productsWithInventory } = useQueryGraphStep({ - entity: "product", - fields: [ - "variants.*", - "variants.inventory_items.*", - ], - filters: { - id: productIds, - }, - }) - - const inventoryItemIds = transform({ - productsWithInventory, - }, (data) => { - return data.productsWithInventory.map((product) => { - return { - inventory_item_id: product.variants[0].inventory_items?.[0]?.inventory_item_id, - } - }) - }) - - // create bundled product - } -) -``` - -Using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), you retrieve the product again with the inventory items of each variant. Then, you prepare the inventory items to pass to the bundled product's variant. - -Finally, create the bundled product: - -```ts highlights={bundledProductHighlights3} -export const createBundledProducts = createWorkflow( - "create-bundled-products", - () => { - // ... - const bundledProduct = createProductsWorkflow.runAsStep({ - input: { - products: [ - { - title: "Bundled Clothes", - shipping_profile_id: "sp_123", - variants: [ - { - title: "Bundle", - prices: [ - { - amount: 30, - currency_code: "usd", - }, - ], - options: { - "Default Option": "Default Variant", - }, - inventory_items: inventoryItemIds, - }, - ], - options: [ - { - title: "Default Option", - values: ["Default Variant"], - }, - ], - }, - ], - }, - }).config({ name: "create-bundled-product" }) - } -) -``` - -The bundled product has the same inventory items as those of the products part of the bundle. - -You can now [execute the workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows#3-execute-the-workflow/index.html.md) in [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md), [scheduled jobs](https://docs.medusajs.com/docs/learn/fundamentals/scheduled-jobs/index.html.md), or [subscribers](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md). - - -# Inventory Module in Medusa Flows - -This document explains how the Inventory Module is used within the Medusa application's flows. - -## Product Variant Creation - -When a product variant is created and its `manage_inventory` property's value is `true`, the Medusa application creates an inventory item associated with that product variant. - -This flow is implemented within the [createProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductVariantsWorkflow/index.html.md) - -![A diagram showcasing how the Inventory Module is used in the product variant creation form](https://res.cloudinary.com/dza7lstvk/image/upload/v1709661511/Medusa%20Resources/inventory-product-create_khz2hk.jpg) - -*** - -## Add to Cart - -When a product variant with `manage_inventory` set to `true` is added to cart, the Medusa application checks whether there's sufficient stocked quantity. If not, an error is thrown and the product variant won't be added to the cart. - -This flow is implemented within the [addToCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/addToCartWorkflow/index.html.md) - -![A diagram showcasing how the Inventory Module is used in the add to cart flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709711645/Medusa%20Resources/inventory-cart-flow_achwq9.jpg) - -*** - -## Order Placed - -When an order is placed, the Medusa application creates a reservation item for each product variant with `manage_inventory` set to `true`. - -This flow is implemented within the [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) - -![A diagram showcasing how the Inventory Module is used in the order placed flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712005/Medusa%20Resources/inventory-order-placed_qdxqdn.jpg) - -*** - -## Order Fulfillment - -When an item in an order is fulfilled and the associated variant has its `manage_inventory` property set to `true`, the Medusa application: - -- Subtracts the `reserved_quantity` from the `stocked_quantity` in the inventory level associated with the variant's inventory item. -- Resets the `reserved_quantity` to `0`. -- Deletes the associated reservation item. - -This flow is implemented within the [createOrderFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderFulfillmentWorkflow/index.html.md) - -![A diagram showcasing how the Inventory Module is used in the order fulfillment flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712390/Medusa%20Resources/inventory-order-fulfillment_o9wdxh.jpg) - -*** - -## Order Return - -When an item in an order is returned and the associated variant has its `manage_inventory` property set to `true`, the Medusa application increments the `stocked_quantity` of the inventory item's level with the returned quantity. - -This flow is implemented within the [confirmReturnReceiveWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmReturnReceiveWorkflow/index.html.md) - -![A diagram showcasing how the Inventory Module is used in the order return flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712457/Medusa%20Resources/inventory-order-return_ihftyk.jpg) - -### Dismissed Returned Items - -If a returned item is considered damaged or is dismissed, its quantity doesn't increment the `stocked_quantity` of the inventory item's level. - - -# Inventory Concepts - -In this document, you’ll learn about the main concepts in the Inventory Module, and how data is stored and related. - -## InventoryItem - -An inventory item, represented by the [InventoryItem data model](https://docs.medusajs.com/references/inventory-next/models/InventoryItem/index.html.md), is a stock-kept item, such as a product, whose inventory can be managed. - -The `InventoryItem` data model mainly holds details related to the underlying stock item, but has relations to other data models that include its inventory details. - -![A diagram showcasing the relation between data models in the Inventory Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1709658103/Medusa%20Resources/inventory-architecture_kxr2ql.png) - -### Inventory Shipping Requirement - -An inventory item has a `requires_shipping` field (enabled by default) that indicates whether the item requires shipping. For example, if you're selling a digital license that has limited stock quantity but doesn't require shipping. - -When a product variant is purchased in the Medusa application, this field is used to determine whether the item requires shipping. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/selling-products/index.html.md). - -*** - -## InventoryLevel - -An inventory level, represented by the [InventoryLevel data model](https://docs.medusajs.com/references/inventory-next/models/InventoryLevel/index.html.md), holds the inventory and quantity details of an inventory item in a specific location. - -It has three quantity-related properties: - -- `stocked_quantity`: The available stock quantity of an item in the associated location. -- `reserved_quantity`: The quantity reserved from the available `stocked_quantity`. It indicates the quantity that's still not removed from stock, but considered as unavailable when checking whether an item is in stock. -- `incoming_quantity`: The incoming stock quantity of an item into the associated location. This property doesn't play into the `stocked_quantity` or when checking whether an item is in stock. - -### Associated Location - -The inventory level's location is determined by the `location_id` property. Medusa links the `InventoryLevel` data model with the `StockLocation` data model from the Stock Location Module. - -*** - -## ReservationItem - -A reservation item, represented by the [ReservationItem](https://docs.medusajs.com/references/inventory-next/models/ReservationItem/index.html.md) data model, represents unavailable quantity of an inventory item in a location. It's used when an order is placed but not fulfilled yet. - -The reserved quantity is associated with a location, so it has a similar relation to that of the `InventoryLevel` with the Stock Location Module. - - -# Links between Inventory Module and Other Modules - -This document showcases the module links defined between the Inventory Module and other Commerce Modules. - -## Summary - -The Inventory Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|ProductVariant|InventoryItem|Stored - many-to-many|Learn more| -|InventoryLevel|StockLocation|Read-only - has many|Learn more| - -*** - -## Product Module - -Each product variant has different inventory details. Medusa defines a link between the `ProductVariant` and `InventoryItem` data models. - -![A diagram showcasing an example of how data models from the Inventory and Product Module are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709658720/Medusa%20Resources/inventory-product_ejnray.jpg) - -A product variant whose `manage_inventory` property is enabled has an associated inventory item. Through that inventory's items relations in the Inventory Module, you can manage and check the variant's inventory quantity. - -Learn more about product variant's inventory management in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). - -### Retrieve with Query - -To retrieve the product variants of an inventory item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variants.*` in `fields`: - -### query.graph - -```ts -const { data: inventoryItems } = await query.graph({ - entity: "inventory_item", - fields: [ - "variants.*", - ], -}) - -// inventoryItems[0].variants -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: inventoryItems } = useQueryGraphStep({ - entity: "inventory_item", - fields: [ - "variants.*", - ], -}) - -// inventoryItems[0].variants -``` - -### Manage with Link - -To manage the variants of an inventory item, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.INVENTORY]: { - inventory_item_id: "iitem_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.INVENTORY]: { - inventory_item_id: "iitem_123", - }, -}) -``` - -*** - -## Stock Location Module - -Medusa defines a read-only link between the `InventoryLevel` data model and the [Stock Location Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md)'s `StockLocation` data model. This means you can retrieve the details of an inventory level's stock locations, but you don't manage the links in a pivot table in the database. The stock location of an inventory level is determined by the `location_id` property of the `InventoryLevel` data model. - -### Retrieve with Query - -To retrieve the stock locations of an inventory level with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `stock_locations.*` in `fields`: - -### query.graph - -```ts -const { data: inventoryLevels } = await query.graph({ - entity: "inventory_level", - fields: [ - "stock_locations.*", - ], -}) - -// inventoryLevels[0].stock_locations -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: inventoryLevels } = useQueryGraphStep({ - entity: "inventory_level", - fields: [ - "stock_locations.*", - ], -}) - -// inventoryLevels[0].stock_locations -``` - - -# Order Concepts - -In this document, you’ll learn about orders and related concepts - -## Order Items - -The items purchased in the order are represented by the [OrderItem data model](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). An order can have multiple items. - -![A diagram showcasing the relation between an order and its items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712304722/Medusa%20Resources/order-order-items_uvckxd.jpg) - -### Item’s Product Details - -The details of the purchased products are represented by the [LineItem data model](https://docs.medusajs.com/references/order/models/OrderLineItem/index.html.md). Not only does a line item hold the details of the product, but also details related to its price, adjustments due to promotions, and taxes. - -*** - -## Order’s Shipping Method - -An order has one or more shipping methods used to handle item shipment. - -Each shipping method is represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md) that holds its details. The shipping method is linked to the order through the [OrderShipping data model](https://docs.medusajs.com/references/order/models/OrderShipping/index.html.md). - -![A diagram showcasing the relation between an order and its items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1719570409/Medusa%20Resources/order-shipping-method_tkggvd.jpg) - -### data Property - -When fulfilling the order, you can use a third-party fulfillment provider that requires additional custom data to be passed along from the order creation process. - -The `OrderShippingMethod` data model has a `data` property. It’s an object used to store custom data relevant later for fulfillment. - -The Medusa application passes the `data` property to the Fulfillment Module when fulfilling items. - -*** - -## Order Totals - -The order’s total amounts (including tax total, total after an item is returned, etc…) are represented by the [OrderSummary data model](https://docs.medusajs.com/references/order/models/OrderSummary/index.html.md). - -*** - -## Order Payments - -Payments made on an order, whether they’re capture or refund payments, are recorded as transactions represented by the [OrderTransaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). - -An order can have multiple transactions. The sum of these transactions must be equal to the order summary’s total. Otherwise, there’s an outstanding amount. - -Learn more about transactions in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/transactions/index.html.md). - - -# Order Edit - -In this document, you'll learn about order edits. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/edit/index.html.md) to learn how to edit an order's items using the dashboard. - -## What is an Order Edit? - -A merchant can edit an order to add new items or change the quantity of existing items in the order. - -An order edit is represented by the [OrderChange data model](https://docs.medusajs.com/references/order/models/OrderChange/index.html.md). - -The `OrderChange` data model is associated with any type of change, including a return or exchange. However, its `change_type` property distinguishes the type of change it's making. - -In the case of an order edit, the `OrderChange`'s type is `edit`. - -*** - -## Add Items in an Order Edit - -When the merchant adds new items to the order in the order edit, the item is added as an [OrderItem](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). - -Also, an `OrderChangeAction` is created. The [OrderChangeAction data model](https://docs.medusajs.com/references/order/models/OrderChangeAction/index.html.md) represents a change made by an `OrderChange`, such as an item added. - -So, when an item is added, an `OrderChangeAction` is created with the type `ITEM_ADD`. In its `details` property, the item's ID, price, and quantity are stored. - -*** - -## Update Items in an Order Edit - -A merchant can update an existing item's quantity or price. - -This change is added as an `OrderChangeAction` with the type `ITEM_UPDATE`. In its `details` property, the item's ID, new price, and new quantity are stored. - -*** - -## Shipping Methods of New Items in the Edit - -Adding new items to the order requires adding shipping methods for those items. - -These shipping methods are represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). Also, an `OrderChangeAction` is created with the type `SHIPPING_ADD` - -*** - -## How Order Edits Impact an Order’s Version - -When an order edit is confirmed, the order’s version is incremented. - -*** - -## Payments and Refunds for Order Edit Changes - -Once the Order Edit is confirmed, any additional payment or refund required can be made on the original order. - -This is determined by the comparison between the `OrderSummary` and the order's transactions, as mentioned in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/transactions#checking-outstanding-amount/index.html.md). - - -# Order Claim - -In this document, you’ll learn about order claims. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/claims/index.html.md) to learn how to manage an order's claims using the dashboard. - -## What is a Claim? - -When a customer receives a defective or incorrect item, the merchant can create a claim to refund or replace the item. - -The [OrderClaim data model](https://docs.medusajs.com/references/order/models/OrderClaim/index.html.md) represents a claim. - -*** - -## Claim Type - -The `Claim` data model has a `type` property whose value indicates the type of the claim: - -- `refund`: the items are returned, and the customer is refunded. -- `replace`: the items are returned, and the customer receives new items. - -*** - -## Old and Replacement Items - -When the claim is created, a return, represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md), is also created to handle receiving the old items from the customer. - -Learn more about returns in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). - -If the claim’s type is `replace`, replacement items are represented by the [ClaimItem data model](https://docs.medusajs.com/references/order/models/OrderClaimItem/index.html.md). - -*** - -## Claim Shipping Methods - -A claim uses shipping methods to send the replacement items to the customer. These methods are represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md). - -The shipping methods for the returned items are associated with the claim's return, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return#return-shipping-methods/index.html.md). - -*** - -## Claim Refund - -If the claim’s type is `refund`, the amount to be refunded is stored in the `refund_amount` property. - -The [Transaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md) represents the refunds made for the claim. - -*** - -## How Claims Impact an Order’s Version - -When a claim is confirmed, the order’s version is incremented. - - -# Order Exchange - -In this document, you’ll learn about order exchanges. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/exchanges/index.html.md) to learn how to manage an order's exchanges using the dashboard. - -## What is an Exchange? - -An exchange is the replacement of an item that the customer ordered with another. - -A merchant creates the exchange, specifying the items to be replaced and the new items to be sent. - -The [OrderExchange data model](https://docs.medusajs.com/references/order/models/OrderExchange/index.html.md) represents an exchange. - -*** - -## Returned and New Items - -When the exchange is created, a return, represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md), is created to handle receiving the items back from the customer. - -Learn more about returns in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). - -The [OrderExchangeItem data model](https://docs.medusajs.com/references/order/models/OrderExchangeItem/index.html.md) represents the new items to be sent to the customer. - -*** - -## Exchange Shipping Methods - -An exchange has shipping methods used to send the new items to the customer. They’re represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md). - -The shipping methods for the returned items are associated with the exchange's return, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return#return-shipping-methods/index.html.md). - -*** - -## Exchange Payment - -The `Exchange` data model has a `difference_due` property that stores the outstanding amount. - -|Condition|Result| -|---|---|---| -|\`difference\_due \< 0\`|Merchant owes the customer a refund of the | -|\`difference\_due > 0\`|Merchant requires additional payment from the customer of the | -|\`difference\_due = 0\`|No payment processing is required.| - -Any payment or refund made is stored in the [Transaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). - -*** - -## How Exchanges Impact an Order’s Version - -When an exchange is confirmed, the order’s version is incremented. - - -# Links between Order Module and Other Modules - -This document showcases the module links defined between the Order Module and other Commerce Modules. - -## Summary - -The Order Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Order|Customer|Read-only - has one|Learn more| -|Order|Cart|Stored - one-to-one|Learn more| -|Order|Fulfillment|Stored - one-to-many|Learn more| -|Return|Fulfillment|Stored - one-to-many|Learn more| -|Order|PaymentCollection|Stored - one-to-many|Learn more| -|OrderClaim|PaymentCollection|Stored - one-to-many|Learn more| -|OrderExchange|PaymentCollection|Stored - one-to-many|Learn more| -|OrderLineItem|Product|Read-only - has many|Learn more| -|Order|Promotion|Stored - many-to-many|Learn more| -|Order|Region|Read-only - has one|Learn more| -|Order|SalesChannel|Read-only - has one|Learn more| - -*** - -## Customer Module - -Medusa defines a read-only link between the `Order` data model and the [Customer Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/customer/index.html.md)'s `Customer` data model. This means you can retrieve the details of an order's customer, but you don't manage the links in a pivot table in the database. The customer of an order is determined by the `customer_id` property of the `Order` data model. - -### Retrieve with Query - -To retrieve the customer of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "customer.*", - ], -}) - -// orders[0].customer -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "customer.*", - ], -}) - -// orders[0].customer -``` - -*** - -## Cart Module - -The [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md) provides cart-management features. - -Medusa defines a link between the `Order` and `Cart` data models. The order is linked to the cart used for the purchased. - -![A diagram showcasing an example of how data models from the Cart and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728375735/Medusa%20Resources/cart-order_ijwmfs.jpg) - -### Retrieve with Query - -To retrieve the cart of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `cart.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "cart.*", - ], -}) - -// orders[0].cart -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "cart.*", - ], -}) - -// orders[0].cart -``` - -### Manage with Link - -To manage the cart of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.CART]: { - cart_id: "cart_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.CART]: { - cart_id: "cart_123", - }, -}) -``` - -*** - -## Fulfillment Module - -A fulfillment is created for an orders' items. Medusa defines a link between the `Fulfillment` and `Order` data models. - -![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716549903/Medusa%20Resources/order-fulfillment_h0vlps.jpg) - -A fulfillment is also created for a return's items. So, Medusa defines a link between the `Fulfillment` and `Return` data models. - -![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399052/Medusa%20Resources/Social_Media_Graphics_2024_Order_Return_vetimk.jpg) - -### Retrieve with Query - -To retrieve the fulfillments of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `fulfillments.*` in `fields`: - -To retrieve the fulfillments of a return, pass `fulfillments.*` in `fields`. - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "fulfillments.*", - ], -}) - -// orders[0].fulfillments -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "fulfillments.*", - ], -}) - -// orders[0].fulfillments -``` - -### Manage with Link - -To manage the fulfillments of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_id: "ful_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.FULFILLMENT]: { - fulfillment_id: "ful_123", - }, -}) -``` - -*** - -## Payment Module - -An order's payment details are stored in a payment collection. This also applies for claims and exchanges. - -So, Medusa defines links between the `PaymentCollection` data model and the `Order`, `OrderClaim`, and `OrderExchange` data models. - -![A diagram showcasing an example of how data models from the Order and Payment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716554726/Medusa%20Resources/order-payment_ubdwok.jpg) - -### Retrieve with Query - -To retrieve the payment collections of an order, order exchange, or order claim with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `payment_collections.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "payment_collections.*", - ], -}) - -// orders[0].payment_collections -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "payment_collections.*", - ], -}) - -// orders[0].payment_collections -``` - -### Manage with Link - -To manage the payment collections of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -*** - -## Product Module - -Medusa defines read-only links between: - -- the `OrderLineItem` data model and the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md)'s `Product` data model. This means you can retrieve the details of a line item's product, but you don't manage the links in a pivot table in the database. The product of a line item is determined by the `product_id` property of the `OrderLineItem` data model. -- the `OrderLineItem` data model and the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md)'s `ProductVariant` data model. This means you can retrieve the details of a line item's variant, but you don't manage the links in a pivot table in the database. The variant of a line item is determined by the `variant_id` property of the `OrderLineItem` data model. - -### Retrieve with Query - -To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: - -To retrieve the product, pass `product.*` in `fields`. - -### query.graph - -```ts -const { data: lineItems } = await query.graph({ - entity: "order_line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems.variant -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: lineItems } = useQueryGraphStep({ - entity: "order_line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems.variant -``` - -*** - -## Promotion Module - -An order is associated with the promotion applied on it. Medusa defines a link between the `Order` and `Promotion` data models. - -![A diagram showcasing an example of how data models from the Order and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716555015/Medusa%20Resources/order-promotion_dgjzzd.jpg) - -### Retrieve with Query - -To retrieve the promotion applied on an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `promotion.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "promotion.*", - ], -}) - -// orders[0].promotion -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "promotion.*", - ], -}) - -// orders[0].promotion -``` - -### Manage with Link - -To manage the promotion of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - -*** - -## Region Module - -Medusa defines a read-only link between the `Order` data model and the [Region Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/region/index.html.md)'s `Region` data model. This means you can retrieve the details of an order's region, but you don't manage the links in a pivot table in the database. The region of an order is determined by the `region_id` property of the `Order` data model. - -### Retrieve with Query - -To retrieve the region of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "region.*", - ], -}) - -// orders[0].region -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "region.*", - ], -}) - -// orders[0].region -``` - -*** - -## Sales Channel Module - -Medusa defines a read-only link between the `Order` data model and the [Sales Channel Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md)'s `SalesChannel` data model. This means you can retrieve the details of an order's sales channel, but you don't manage the links in a pivot table in the database. The sales channel of an order is determined by the `sales_channel_id` property of the `Order` data model. - -### Retrieve with Query - -To retrieve the sales channel of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "sales_channel.*", - ], -}) - -// orders[0].sales_channel -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "sales_channel.*", - ], -}) - -// orders[0].sales_channel -``` - - -# Order Versioning - -In this document, you’ll learn how an order and its details are versioned. - -## What's Versioning? - -Versioning means assigning a version number to a record, such as an order and its items. This is useful to view the different versions of the order following changes in its lifetime. - -When changes are made on an order, such as an item is added or returned, the order's version changes. - -*** - -## version Property - -The `Order` and `OrderSummary` data models have a `version` property that indicates the current version. By default, its value is `1`. - -Other order-related data models, such as `OrderItem`, also has a `version` property, but it indicates the version it belongs to. - -*** - -## How the Version Changes - -When the order is changed, such as an item is exchanged, this changes the version of the order and its related data: - -1. The version of the order and its summary is incremented. -2. Related order data that have a `version` property, such as the `OrderItem`, are duplicated. The duplicated item has the new version, whereas the original item has the previous version. - -When the order is retrieved, only the related data having the same version is retrieved. - - -# Promotions Adjustments in Orders - -In this document, you’ll learn how a promotion is applied to an order’s items and shipping methods using adjustment lines. - -## What are Adjustment Lines? - -An adjustment line indicates a change to a line item or a shipping method’s amount. It’s used to apply promotions or discounts on an order. - -The [OrderLineItemAdjustment data model](https://docs.medusajs.com/references/order/models/OrderLineItemAdjustment/index.html.md) represents changes on a line item, and the [OrderShippingMethodAdjustment data model](https://docs.medusajs.com/references/order/models/OrderShippingMethodAdjustment/index.html.md) represents changes on a shipping method. - -![A diagram showcasing the relation between an order, its items and shipping methods, and their adjustment lines](https://res.cloudinary.com/dza7lstvk/image/upload/v1712306017/Medusa%20Resources/order-adjustments_myflir.jpg) - -The `amount` property of the adjustment line indicates the amount to be discounted from the original amount. - -The ID of the applied promotion is stored in the `promotion_id` property of the adjustment line. - -*** - -## Discountable Option - -The `OrderLineItem` data model has an `is_discountable` property that indicates whether promotions can be applied to the line item. It’s enabled by default. - -When disabled, a promotion can’t be applied to a line item. In the context of the Promotion Module, the promotion isn’t applied to the line item even if it matches its rules. - -*** - -## Promotion Actions - -When using the Order and Promotion modules together, use the [computeActions method of the Promotion Module’s main service](https://docs.medusajs.com/references/promotion/computeActions/index.html.md). It retrieves the actions of line items and shipping methods. - -Learn more about actions in the [Promotion Module’s documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/actions/index.html.md). - -```ts collapsibleLines="1-10" expandButtonLabel="Show Imports" -import { - ComputeActionAdjustmentLine, - ComputeActionItemLine, - ComputeActionShippingLine, - // ... -} from "@medusajs/framework/types" - -// ... - -// retrieve the order -const order = await orderModuleService.retrieveOrder("ord_123", { - relations: [ - "items.item.adjustments", - "shipping_methods.shipping_method.adjustments", - ], -}) -// retrieve the line item adjustments -const lineItemAdjustments: ComputeActionItemLine[] = [] -order.items.forEach((item) => { - const filteredAdjustments = item.adjustments?.filter( - (adjustment) => adjustment.code !== undefined - ) as unknown as ComputeActionAdjustmentLine[] - if (filteredAdjustments.length) { - lineItemAdjustments.push({ - ...item, - ...item.detail, - adjustments: filteredAdjustments, - }) - } -}) - -//retrieve shipping method adjustments -const shippingMethodAdjustments: ComputeActionShippingLine[] = - [] -order.shipping_methods.forEach((shippingMethod) => { - const filteredAdjustments = - shippingMethod.adjustments?.filter( - (adjustment) => adjustment.code !== undefined - ) as unknown as ComputeActionAdjustmentLine[] - if (filteredAdjustments.length) { - shippingMethodAdjustments.push({ - ...shippingMethod, - adjustments: filteredAdjustments, - }) - } -}) - -// compute actions -const actions = await promotionModuleService.computeActions( - ["promo_123"], - { - items: lineItemAdjustments, - shipping_methods: shippingMethodAdjustments, - // TODO infer from cart or region - currency_code: "usd", - } -) -``` - -The `computeActions` method accepts the existing adjustments of line items and shipping methods to compute the actions accurately. - -Then, use the returned `addItemAdjustment` and `addShippingMethodAdjustment` actions to set the order’s line items and the shipping method’s adjustments. - -```ts collapsibleLines="1-9" expandButtonLabel="Show Imports" -import { - AddItemAdjustmentAction, - AddShippingMethodAdjustment, - // ... -} from "@medusajs/framework/types" - -// ... - -await orderModuleService.setOrderLineItemAdjustments( - order.id, - actions.filter( - (action) => action.action === "addItemAdjustment" - ) as AddItemAdjustmentAction[] -) - -await orderModuleService.setOrderShippingMethodAdjustments( - order.id, - actions.filter( - (action) => - action.action === "addShippingMethodAdjustment" - ) as AddShippingMethodAdjustment[] -) -``` - - -# Order Return - -In this document, you’ll learn about order returns. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/returns/index.html.md) to learn how to manage an order's returns using the dashboard. - -## What is a Return? - -A return is the return of items delivered from the customer back to the merchant. It is represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md). - -A return is requested either by the customer from the storefront, or the merchant from the admin. Medusa supports an automated Return Merchandise Authorization (RMA) flow. - -![Diagram showcasing the automated RMA flow.](https://res.cloudinary.com/dza7lstvk/image/upload/v1719578128/Medusa%20Resources/return-rma_pzprwq.jpg) - -Once the merchant receives the returned items, they mark the return as received. - -*** - -## Returned Items - -The items to be returned are represented by the [ReturnItem data model](references/order/models/ReturnItem). - -The `ReturnItem` model has two properties storing the item's quantity: - -1. `received_quantity`: The quantity of the item that's received and can be added to the item's inventory quantity. -2. `damaged_quantity`: The quantity of the item that's damaged, meaning it can't be sold again or added to the item's inventory quantity. - -*** - -## Return Shipping Methods - -A return has shipping methods used to return the items to the merchant. The shipping methods are represented by the [OrderShippingMethod data model](references/order/models/OrderShippingMethod). - -In the Medusa application, the shipping method for a return is created only from a shipping option, provided by the Fulfillment Module, that has the rule `is_return` enabled. - -*** - -## Refund Payment - -The `refund_amount` property of the `Return` data model holds the amount a merchant must refund the customer. - -The [OrderTransaction data model](references/order/models/OrderTransaction) represents the refunds made for the return. - -*** - -## Returns in Exchanges and Claims - -When a merchant creates an exchange or a claim, it includes returning items from the customer. - -The `Return` data model also represents the return of these items. In this case, the return is associated with the exchange or claim it was created for. - -*** - -## How Returns Impact an Order’s Version - -The order’s version is incremented when: - -1. A return is requested. -2. A return is marked as received. - - -# Tax Lines in Order Module - -In this document, you’ll learn about tax lines in an order. - -## What are Tax Lines? - -A tax line indicates the tax rate of a line item or a shipping method. - -The [OrderLineItemTaxLine data model](https://docs.medusajs.com/references/order/models/OrderLineItemTaxLine/index.html.md) represents a line item’s tax line, and the [OrderShippingMethodTaxLine data model](https://docs.medusajs.com/references/order/models/OrderShippingMethodTaxLine/index.html.md) represents a shipping method’s tax line. - -![A diagram showcasing the relation between orders, items and shipping methods, and tax lines](https://res.cloudinary.com/dza7lstvk/image/upload/v1712307225/Medusa%20Resources/order-tax-lines_sixujd.jpg) - -*** - -## Tax Inclusivity - -By default, the tax amount is calculated by taking the tax rate from the line item or shipping method’s amount and then adding it to the item/method’s subtotal. - -However, line items and shipping methods have an `is_tax_inclusive` property that, when enabled, indicates that the item or method’s price already includes taxes. - -So, instead of calculating the tax rate and adding it to the item/method’s subtotal, it’s calculated as part of the subtotal. - -The following diagram is a simplified showcase of how a subtotal is calculated from the tax perspective. - -![A diagram showcasing how a subtotal is calculated from the tax perspective](https://res.cloudinary.com/dza7lstvk/image/upload/v1712307395/Medusa%20Resources/order-tax-inclusive_oebdnm.jpg) - -For example, if a line item's amount is `5000`, the tax rate is `10`, and `is_tax_inclusive` is enabled, the tax amount is 10% of `5000`, which is `500`. The item's unit price becomes `4500`. - - -# Transactions - -In this document, you’ll learn about an order’s transactions and its use. - -## What is a Transaction? - -A transaction represents any order payment process, such as capturing or refunding an amount. It’s represented by the [OrderTransaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). - -The transaction’s main purpose is to ensure a correct balance between paid and outstanding amounts. - -Transactions are also associated with returns, claims, and exchanges if additional payment or refund is required. - -*** - -## Checking Outstanding Amount - -The order’s total amounts are stored in the `OrderSummary`'s `totals` property, which is a JSON object holding the total details of the order. - -```json -{ - "totals": { - "total": 30, - "subtotal": 30, - // ... - } -} -``` - -To check the outstanding amount of the order, its transaction amounts are summed. Then, the following conditions are checked: - -|Condition|Result| -|---|---|---| -|summary’s total - transaction amounts total = 0|There’s no outstanding amount.| -|summary’s total - transaction amounts total > 0|The customer owes additional payment to the merchant.| -|summary’s total - transaction amounts total \< 0|The merchant owes the customer a refund.| - -*** - -## Transaction Reference - -The Order Module doesn’t provide payment processing functionalities, so it doesn’t store payments that can be processed. Payment functionalities are provided by the [Payment Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/index.html.md). - -The `OrderTransaction` data model has two properties that determine which data model and record holds the actual payment’s details: - -- `reference`: indicates the table’s name in the database. For example, `payment` from the Payment Module. -- `reference_id`: indicates the ID of the record in the table. For example, `pay_123`. - - -# Links between Currency Module and Other Modules - -This document showcases the module links defined between the Currency Module and other Commerce Modules. - -## Summary - -The Currency Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|StoreCurrency|Currency|Read-only - has one|Learn more| - -*** - -## Store Module - -The Store Module has a `Currency` data model that stores the supported currencies of a store. However, these currencies don't hold all the details of a currency, such as its name or symbol. - -Instead, Medusa defines a read-only link between the [Store Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/store/index.html.md)'s `StoreCurrency` data model and the Currency Module's `Currency` data model. Because the link is read-only from the `Store`'s side, you can only retrieve the details of a store's supported currencies, and not the other way around. - -### Retrieve with Query - -To retrieve the details of a store's currencies with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `supported_currencies.currency.*` in `fields`: - -### query.graph - -```ts -const { data: stores } = await query.graph({ - entity: "store", - fields: [ - "supported_currencies.currency.*", - ], -}) - -// stores[0].supported_currencies[0].currency -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: stores } = useQueryGraphStep({ - entity: "store", - fields: [ - "supported_currencies.currency.*", - ], -}) - -// stores[0].supported_currencies[0].currency -``` - - -# Order Change - -In this document, you'll learn about the Order Change data model and possible actions in it. - -## OrderChange Data Model - -The [OrderChange data model](https://docs.medusajs.com/references/order/models/OrderChange/index.html.md) represents any kind of change to an order, such as a return, exchange, or edit. - -Its `change_type` property indicates what the order change is created for: - -1. `edit`: The order change is making edits to the order, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/edit/index.html.md). -2. `exchange`: The order change is associated with an exchange, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/exchange/index.html.md). -3. `claim`: The order change is associated with a claim, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/claim/index.html.md). -4. `return_request` or `return_receive`: The order change is associated with a return, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). - -Once the order change is confirmed, its changes are applied on the order. - -*** - -## Order Change Actions - -The actions to perform on the original order by a change, such as adding an item, are represented by the [OrderChangeAction data model](https://docs.medusajs.com/references/order/models/OrderChangeAction/index.html.md). - -The `OrderChangeAction` has an `action` property that indicates the type of action to perform on the order, and a `details` property that holds more details related to the action. - -The following table lists the possible `action` values that Medusa uses and what `details` they carry. - -|Action|Description|Details| -|---|---|---|---|---| -|\`ITEM\_ADD\`|Add an item to the order.|\`details\`| -|\`ITEM\_UPDATE\`|Update an item in the order.|\`details\`| -|\`RETURN\_ITEM\`|Set an item to be returned.|\`details\`| -|\`RECEIVE\_RETURN\_ITEM\`|Mark a return item as received.|\`details\`| -|\`RECEIVE\_DAMAGED\_RETURN\_ITEM\`|Mark a return item that's damaged as received.|\`details\`| -|\`SHIPPING\_ADD\`|Add a shipping method for new or returned items.|No details added. The ID to the shipping method is added in the | -|\`SHIPPING\_ADD\`|Add a shipping method for new or returned items.|No details added. The ID to the shipping method is added in the | -|\`WRITE\_OFF\_ITEM\`|Remove an item's quantity as part of the claim, without adding the quantity back to the item variant's inventory.|\`details\`| - - -# Account Holders and Saved Payment Methods - -In this documentation, you'll learn about account holders, and how they're used to save payment methods in third-party payment providers. - -Account holders are available starting from Medusa `v2.5.0`. - -## What's an Account Holder? - -An account holder represents a customer that can have saved payment methods in a third-party service. It's represented by the `AccountHolder` data model. - -It holds fields retrieved from the third-party provider, such as: - -- `external_id`: The ID of the equivalent customer or account holder in the third-party provider. -- `data`: Data returned by the payment provider when the account holder is created. - -A payment provider that supports saving payment methods for customers would create the equivalent of an account holder in the third-party provider. Then, whenever a payment method is saved, it would be saved under the account holder in the third-party provider. - -### Relation between Account Holder and Customer - -The Medusa application creates a link between the [Customer](https://docs.medusajs.com/references/customer/models/Customer/index.html.md) data model of the [Customer Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/customer/index.html.md) and the `AccountHolder` data model of the Payment Module. - -This link indicates that a customer can have more than one account holder, each representing saved payment methods in different payment providers. - -Learn more about this link in the [Link to Other Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/links-to-other-modules/index.html.md) guide. - -*** - -## Save Payment Methods - -If a payment provider supports saving payment methods for a customer, they must implement the following methods: - -- `createAccountHolder`: Creates an account holder in the payment provider. The Payment Module uses this method before creating the account holder in Medusa, and uses the returned data to set fields like `external_id` and `data` in the created `AccountHolder` record. -- `deleteAccountHolder`: Deletes an account holder in the payment provider. The Payment Module uses this method when an account holder is deleted in Medusa. -- `savePaymentMethod`: Saves a payment method for an account holder in the payment provider. -- `listPaymentMethods`: Lists saved payment methods in the third-party service for an account holder. This is useful when displaying the customer's saved payment methods in the storefront. - -Learn more about implementing these methods in the [Create Payment Provider guide](https://docs.medusajs.com/references/payment/provider/index.html.md). - -*** - -## Account Holder in Medusa Payment Flows - -In the Medusa application, when a payment session is created for a registered customer, the Medusa application uses the Payment Module to create an account holder for the customer. - -Consequently, the Payment Module uses the payment provider to create an account holder in the third-party service, then creates the account holder in Medusa. - -This flow is only supported if the chosen payment provider has implemented the necessary [save payment methods](#save-payment-methods). - - -# Payment Module Options - -In this document, you'll learn about the options of the Payment Module. - -## All Module Options - -|Option|Description|Required|Default| -|---|---|---|---|---|---|---| -|\`webhook\_delay\`|A number indicating the delay in milliseconds before processing a webhook event.|No|\`5000\`| -|\`webhook\_retries\`|The number of times to retry the webhook event processing in case of an error.|No|\`3\`| -|\`providers\`|An array of payment providers to install and register. Learn more |No|-| - -*** - -## providers Option - -The `providers` option is an array of payment module providers. - -When the Medusa application starts, these providers are registered and can be used to process payments. - -For example: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/payment", - options: { - providers: [ - { - resolve: "@medusajs/medusa/payment-stripe", - id: "stripe", - options: { - // ... - }, - }, - ], - }, - }, - ], -}) -``` - -The `providers` option is an array of objects that accept the following properties: - -- `resolve`: A string indicating the package name of the module provider or the path to it relative to the `src` directory. -- `id`: A string indicating the provider's unique name or ID. -- `options`: An optional object of the module provider's options. - - -# Links between Payment Module and Other Modules - -This document showcases the module links defined between the Payment Module and other Commerce Modules. - -## Summary - -The Payment Module has the following links to other modules: - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Cart|PaymentCollection|Stored - one-to-one|Learn more| -|Customer|AccountHolder|Stored - many-to-many|Learn more| -|Order|PaymentCollection|Stored - one-to-many|Learn more| -|OrderClaim|PaymentCollection|Stored - one-to-many|Learn more| -|OrderExchange|PaymentCollection|Stored - one-to-many|Learn more| -|Region|PaymentProvider|Stored - many-to-many|Learn more| - -*** - -## Cart Module - -The Cart Module provides cart-related features, but not payment processing. - -Medusa defines a link between the `Cart` and `PaymentCollection` data models. A cart has a payment collection which holds all the authorized payment sessions and payments made related to the cart. - -Learn more about this relation in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-collection#usage-with-the-cart-module/index.html.md). - -### Retrieve with Query - -To retrieve the cart associated with the payment collection with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `cart.*` in `fields`: - -### query.graph - -```ts -const { data: paymentCollections } = await query.graph({ - entity: "payment_collection", - fields: [ - "cart.*", - ], -}) - -// paymentCollections[0].cart -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: paymentCollections } = useQueryGraphStep({ - entity: "payment_collection", - fields: [ - "cart.*", - ], -}) - -// paymentCollections[0].cart -``` - -### Manage with Link - -To manage the payment collection of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.CART]: { - cart_id: "cart_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.CART]: { - cart_id: "cart_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -*** - -## Customer Module - -Medusa defines a link between the `Customer` and `AccountHolder` data models, allowing payment providers to save payment methods for a customer, if the payment provider supports it. - -This link is available starting from Medusa `v2.5.0`. - -### Retrieve with Query - -To retrieve the customer associated with an account holder with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: - -### query.graph - -```ts -const { data: accountHolders } = await query.graph({ - entity: "account_holder", - fields: [ - "customer.*", - ], -}) - -// accountHolders[0].customer -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: accountHolders } = useQueryGraphStep({ - entity: "account_holder", - fields: [ - "customer.*", - ], -}) - -// accountHolders[0].customer -``` - -### Manage with Link - -To manage the account holders of a customer, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.CUSTOMER]: { - customer_id: "cus_123", - }, - [Modules.PAYMENT]: { - account_holder_id: "acchld_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.CUSTOMER]: { - customer_id: "cus_123", - }, - [Modules.PAYMENT]: { - account_holder_id: "acchld_123", - }, -}) -``` - -*** - -## Order Module - -An order's payment details are stored in a payment collection. This also applies for claims and exchanges. - -So, Medusa defines links between the `PaymentCollection` data model and the `Order`, `OrderClaim`, and `OrderExchange` data models. - -![A diagram showcasing an example of how data models from the Order and Payment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716554726/Medusa%20Resources/order-payment_ubdwok.jpg) - -### Retrieve with Query - -To retrieve the order of a payment collection with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `order.*` in `fields`: - -### query.graph - -```ts -const { data: paymentCollections } = await query.graph({ - entity: "payment_collection", - fields: [ - "order.*", - ], -}) - -// paymentCollections[0].order -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: paymentCollections } = useQueryGraphStep({ - entity: "payment_collection", - fields: [ - "order.*", - ], -}) - -// paymentCollections[0].order -``` - -### Manage with Link - -To manage the payment collections of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PAYMENT]: { - payment_collection_id: "paycol_123", - }, -}) -``` - -*** - -## Region Module - -You can specify for each region which payment providers are available. The Medusa application defines a link between the `PaymentProvider` and the `Region` data models. - -![A diagram showcasing an example of how resources from the Payment and Region modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711569520/Medusa%20Resources/payment-region_jyo2dz.jpg) - -This increases the flexibility of your store. For example, you only show during checkout the payment providers associated with the cart's region. - -### Retrieve with Query - -To retrieve the regions of a payment provider with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `regions.*` in `fields`: - -### query.graph - -```ts -const { data: paymentProviders } = await query.graph({ - entity: "payment_provider", - fields: [ - "regions.*", - ], -}) - -// paymentProviders[0].regions -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: paymentProviders } = useQueryGraphStep({ - entity: "payment_provider", - fields: [ - "regions.*", - ], -}) - -// paymentProviders[0].regions -``` - -### Manage with Link - -To manage the payment providers in a region, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.REGION]: { - region_id: "reg_123", - }, - [Modules.PAYMENT]: { - payment_provider_id: "pp_stripe_stripe", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.REGION]: { - region_id: "reg_123", - }, - [Modules.PAYMENT]: { - payment_provider_id: "pp_stripe_stripe", - }, -}) -``` - - -# Payment - -In this document, you’ll learn what a payment is and how it's created, captured, and refunded. - -## What's a Payment? - -When a payment session is authorized, a payment, represented by the [Payment data model](https://docs.medusajs.com/references/payment/models/Payment/index.html.md), is created. This payment can later be captured or refunded. - -A payment carries many of the data and relations of a payment session: - -- It belongs to the same payment collection. -- It’s associated with the same payment provider, which handles further payment processing. -- It stores the payment session’s `data` property in its `data` property, as it’s still useful for the payment provider’s processing. - -*** - -## Capture Payments - -When a payment is captured, a capture, represented by the [Capture data model](https://docs.medusajs.com/references/payment/models/Capture/index.html.md), is created. It holds details related to the capture, such as the amount, the capture date, and more. - -The payment can also be captured incrementally, each time a capture record is created for that amount. - -![A diagram showcasing how a payment's multiple captures are stored](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565445/Medusa%20Resources/payment-capture_f5fve1.jpg) - -*** - -## Refund Payments - -When a payment is refunded, a refund, represented by the [Refund data model](https://docs.medusajs.com/references/payment/models/Refund/index.html.md), is created. It holds details related to the refund, such as the amount, refund date, and more. - -A payment can be refunded multiple times, and each time a refund record is created. - -![A diagram showcasing how a payment's multiple refunds are stored](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565555/Medusa%20Resources/payment-refund_lgfvyy.jpg) - -*** - -## data Property - -Payment providers may need additional data to process the payment later. For example, the ID of the associated payment in the third-party provider. - -The `Payment` data model has a `data` property used to store that data. The first time it's set is when the [payment provider in Medusa](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) authorizes the payment. - -Then, the `data` property is passed to the Medusa payment provider when the payment is captured or refunded, allowing the payment provider to utilize the data to process the payment with the third-party provider. - -If you're building a custom payment provider, learn more about authorizing and capturing the payments and setting the `data` property in the [Create Payment Provider](https://docs.medusajs.com/references/payment/provider/index.html.md) guide. - - -# Payment Steps in Checkout Flow - -In this guide, you'll learn about Medusa's accept payment flow that's used in checkout. - -## Overview of the Payment Flow in Checkout - -The Medusa application has a built-in payment flow that allows you to accept payments from customers, typically during checkout. - -This flow is designed to be flexible and extensible, allowing you to integrate with various payment providers. - -The payment flow consists of the following steps: - -![A diagram showcasing the payment flow's steps](https://res.cloudinary.com/dza7lstvk/image/upload/v1711566781/Medusa%20Resources/payment-flow_jblrvw.jpg) - -- [Create Payment Collection](https://docs.medusajs.com/api/store#payment-collections_postpaymentcollections): Create a payment collection associated with a cart. - - This payment collection will hold all details related to the payment operations. -- [Show Payment Providers](https://docs.medusajs.com/api/store#payment-providers_getpaymentproviders): Show the customer the available payment providers to choose from. - - You can integrate any [payment provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md), and you can enable them per region. -- [Create and Initialize Payment Session](https://docs.medusajs.com/api/store#payment-collections_postpaymentcollectionsidpaymentsessions): Create a payment session for the selected payment provider in the Medusa application, and initialize the session in the third-party payment provider. -- [Complete Cart](https://docs.medusajs.com/api/store#carts_postcartsidcomplete): Once the customer places the order, complete the cart, which involves: - - Authorizing the payment session with the third-party payment provider. - - If the third-party payment provider requires performing additional actions, show them to the customer, then retry cart completion. - -*** - -## Implement Payment Checkout Step in Storefront - -If you're using the [Next.js Starter Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md), the checkout flow is already implemented with the payment step. - -If you're building a custom storefront, or you want to customize the checkout flow, you can follow the [Checkout in Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/index.html.md) guide to learn how to build the checkout flow in the storefront, including the payment step. - -*** - -{/* TODO add section on customizng the payment flow */} - -## Build a Custom Payment Flow - -You can also build a custom payment flow using workflows or the Payment Module's main service. - -Refer to the [Accept Payment Flow](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-flow/index.html.md) guide to learn more. - - -# Payment Collection - -In this document, you’ll learn what a payment collection is and how the Medusa application uses it with the Cart Module. - -## What's a Payment Collection? - -A payment collection stores payment details related to a resource, such as a cart or an order. It’s represented by the [PaymentCollection data model](https://docs.medusajs.com/references/payment/models/PaymentCollection/index.html.md). - -Every purchase or request for payment starts with a payment collection. The collection holds details necessary to complete the payment, including: - -- The [payment sessions](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-session/index.html.md) that represents the payment amount to authorize. -- The [payments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment/index.html.md) that are created when a payment session is authorized. They can be captured and refunded. -- The [payment providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) that handle the processing of each payment session, including the authorization, capture, and refund. - -*** - -## Multiple Payments - -The payment collection supports multiple payment sessions and payments. - -You can use this to accept payments in increments or split payments across payment providers. - -![Diagram showcasing how a payment collection can have multiple payment sessions and payments](https://res.cloudinary.com/dza7lstvk/image/upload/v1711554695/Medusa%20Resources/payment-collection-multiple-payments_oi3z3n.jpg) - -*** - -## Usage with the Cart Module - -The Cart Module provides cart management features. However, it doesn’t provide any features related to accepting payment. - -During checkout, the Medusa application links a cart to a payment collection, which will be used for further payment processing. - -It also implements the payment flow during checkout as explained in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-flow/index.html.md). - -![Diagram showcasing the relation between the Payment and Cart modules](https://res.cloudinary.com/dza7lstvk/image/upload/v1711537849/Medusa%20Resources/cart-payment_ixziqm.jpg) - - -# Accept Payment in Checkout Flow - -In this guide, you'll learn how to implement it using workflows or the Payment Module. - -## Why Implement the Payment Flow? - -Medusa already provides a built-in payment flow that allows you to accept payments from customers, which you can learn about in the [Accept Payment Flow in Checkout](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-checkout-flow/index.html.md) guide. - -You may need to implement a custom payment flow if you have a different use case, or you're using the Payment Module separately from the Medusa application. - -This guide will help you understand how to implement a payment flow using the Payment Module's main service or workflows. - -You can also follow this guide to get a general understanding of how the payment flow works in the Medusa application. - -*** - -## How to Implement the Accept Payment Flow? - -For a guide on how to implement this flow in the storefront, check out [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/payment/index.html.md). - -It's highly recommended to use Medusa's workflows to implement this flow. Use the Payment Module's main service for more complex cases. - -### 1. Create a Payment Collection - -A payment collection holds all details related to a resource’s payment operations. So, you start off by creating a payment collection. - -In the Medusa application, you associate the payment collection with a cart, which is the resource that the customer is trying to pay for. - -For example: - -### Using Workflow - -```ts -import { createPaymentCollectionForCartWorkflow } from "@medusajs/medusa/core-flows" - -// ... - -await createPaymentCollectionForCartWorkflow(container) - .run({ - input: { - cart_id: "cart_123", - }, - }) -``` - -### Using Service - -```ts -const paymentCollection = - await paymentModuleService.createPaymentCollections({ - currency_code: "usd", - amount: 5000, - }) -``` - -### 2. Show Payment Providers - -Next, you'll show the customer the available payment providers to choose from. - -In the Medusa application, you need to use [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) to retrieve the available payment providers in a region. - -### Using Query - -```ts -const query = container.resolve("query") - -const { data: regionPaymentProviders } = await query.graph({ - entryPoint: "region_payment_provider", - variables: { - filters: { - region_id: "reg_123", - }, - }, - fields: ["payment_providers.*"], -}) - -const paymentProviders = regionPaymentProviders.map( - (relation) => relation.payment_providers -) -``` - -### Using Service - -```ts -const paymentProviders = await paymentModuleService.listPaymentProviders() -``` - -### 3. Create Payment Sessions - -The payment collection has one or more payment sessions, each being a payment amount to be authorized by a payment provider. - -So, once the customer selects a payment provider, create a payment session for the selected payment provider. - -This will also initialize the payment session in the third-party payment provider. - -For example: - -### Using Workflow - -```ts -import { createPaymentSessionsWorkflow } from "@medusajs/medusa/core-flows" - -// ... - -const { result: paymentSesion } = await createPaymentSessionsWorkflow(container) - .run({ - input: { - payment_collection_id: "paycol_123", - provider_id: "pp_stripe_stripe", - }, - }) -``` - -### Using Service - -```ts -const paymentSession = - await paymentModuleService.createPaymentSession( - paymentCollection.id, - { - provider_id: "pp_stripe_stripe", - currency_code: "usd", - amount: 5000, - data: { - // any necessary data for the - // payment provider - }, - } - ) -``` - -### 4. Authorize Payment Session - -Once the customer places the order, you need to authorize the payment session with the third-party payment provider. - -For example: - -### Using Step - -```ts -import { authorizePaymentSessionStep } from "@medusajs/medusa/core-flows" - -// ... - -authorizePaymentSessionStep({ - id: "payses_123", - context: {}, -}) -``` - -### Using Service - -```ts -const payment = authorizePaymentSessionStep({ - id: "payses_123", - context: {}, -}) -``` - -When the payment authorization is successful, a payment is created and returned. - -#### Handling Additional Action - -If you used the `authorizePaymentSessionStep`, you don't need to implement this logic as it's implemented in the step. - -If the payment authorization isn’t successful, whether because it requires additional action or for another reason, the method updates the payment session with the new status and throws an error. - -In that case, you can catch that error and, if the session's `status` property is `requires_more`, handle the additional action, then retry the authorization. - -For example: - -```ts -try { - const payment = - await paymentModuleService.authorizePaymentSession( - paymentSession.id, - {} - ) -} catch (e) { - // retrieve the payment session again - const updatedPaymentSession = ( - await paymentModuleService.listPaymentSessions({ - id: [paymentSession.id], - }) - )[0] - - if (updatedPaymentSession.status === "requires_more") { - // TODO perform required action - // TODO authorize payment again. - } -} -``` - -### 5. Payment Flow Complete - -The payment flow is complete once the payment session is authorized and the payment is created. - -You can then: - -- Complete the cart using the [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) if you're using the Medusa application. -- Capture the payment either using the [capturePaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/capturePaymentWorkflow/index.html.md) or [capturePayment method](https://docs.medusajs.com/references/payment/capturePayment/index.html.md). -- Refund captured amounts using the [refundPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentWorkflow/index.html.md) or [refundPayment method](https://docs.medusajs.com/references/payment/refundPayment/index.html.md). - -Some payment providers allow capturing the payment automatically once it’s authorized. In that case, you don’t need to do it manually. - - -# Payment Module Provider - -In this guide, you’ll learn about the Payment Module Provider and how it's used. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/regions/index.html.md) to learn how to manage the payment providers available in a region using the dashboard. - -*** - -## What is a Payment Module Provider? - -The Payment Module Provider handles payment processing in the Medusa application. It integrates third-party payment services, such as [Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md). - -To authorize a payment amount with a payment provider, a payment session is created and associated with that payment provider. The payment provider is then used to handle the authorization. - -After the payment session is authorized, the payment provider is associated with the resulting payment and handles its payment processing, such as to capture or refund payment. - -![Diagram showcasing the communication between Medusa, the Payment Module Provider, and the third-party payment provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791374/Medusa%20Resources/payment-provider-service_l4zi6m.jpg) - -### List of Payment Module Providers - -- [Stripe](https://docs.medusajs.com/commerce-modules/payment/payment-provider/stripe/index.html.md) - -### Default Payment Provider - -The Payment Module provides a `system` payment provider that acts as a placeholder payment provider. - -It doesn’t handle payment processing and delegates that to the merchant. It acts similarly to a cash-on-delivery (COD) payment method. - -The identifier of the system payment provider is `pp_system`. - -*** - -## How to Create a Custom Payment Provider? - -A payment provider is a module whose main service extends the `AbstractPaymentProvider` imported from `@medusajs/framework/utils`. - -The module can have multiple payment provider services, where each is registered as a separate payment provider. - -Refer to [this guide](https://docs.medusajs.com/references/payment/provider/index.html.md) on how to create a payment provider for the Payment Module. - -After you create a payment provider, you can enable it as a payment provider in a region using the [Medusa Admin dashboard](https://docs.medusajs.com/user-guide/settings/regions/index.html.md). - -*** - -## How are Payment Providers Registered? - -### Configure Payment Module's Providers - -The Payment Module accepts a `providers` option that allows you to configure the providers registered in your application. - -Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/module-options/index.html.md) guide. - -### Registration on Application Start - -When the Medusa application starts, it registers the Payment Module Providers defined in the `providers` option of the Payment Module. - -For each Payment Module Provider, the Medusa application finds all payment provider services defined in them to register. - -### PaymentProvider Data Model - -A registered payment provider is represented by the [PaymentProvider data model](https://docs.medusajs.com/references/payment/models/PaymentProvider/index.html.md) in the Medusa application. - -![Diagram showcasing the PaymentProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791364/Medusa%20Resources/payment-provider-model_lx91oa.jpg) - -This data model is used to reference a service in the Payment Module Provider and determine whether it's installed in the application. - -The `PaymentProvider` data model has the following properties: - -- `id`: The unique identifier of the Payment Module Provider. The ID's format is `pp_{identifier}_{id}`, where: - - `identifier` is the value of the `identifier` property in the Payment Module Provider's service. - - `id` is the value of the `id` property of the Payment Module Provider in `medusa-config.ts`. -- `is_enabled`: A boolean indicating whether the payment provider is enabled. - -### How to Remove a Payment Provider? - -If you remove a payment provider from the `providers` option, the Medusa application will not remove the associated `PaymentProvider` data model record. - -Instead, the Medusa application will set the `is_enabled` property of the `PaymentProvider`'s record to `false`. This allows you to re-enable the payment provider later if needed by adding it back to the `providers` option. - - -# Payment Session - -In this document, you’ll learn what a payment session is. - -## What's a Payment Session? - -A payment session, represented by the [PaymentSession data model](https://docs.medusajs.com/references/payment/models/PaymentSession/index.html.md), is a payment amount to be authorized. It’s associated with a payment provider that handles authorizing it. - -A payment collection can have multiple payment sessions. Using this feature, you can implement payment in installments or payments using multiple providers. - -![Diagram showcasing how every payment session has a different payment provider](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565056/Medusa%20Resources/payment-session-provider_guxzqt.jpg) - -*** - -## data Property - -Payment providers may need additional data to process the payment later. For example, the ID of the session in the third-party provider. - -The `PaymentSession` data model has a `data` property used to store that data. It's set by the [payment provider in Medusa](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) when the payment is initialized. - -Then, when the payment session is authorized, the `data` property is used by the payment provider in Medusa to process the payment with the third-party provider. - -If you're building a custom payment provider, learn more about initializing the payment session and setting the `data` property in the [Create Payment Provider](https://docs.medusajs.com/references/payment/provider/index.html.md) guide. - -### data Property in the Storefront - -This `data` property is accessible in the storefront as well. So, only store in it data that can be publicly shared, and data that is useful in the storefront. - -For example, you can also store the client token used to initialize the payment session in the storefront with the third-party provider. - -*** - -## Payment Session Status - -The `status` property of a payment session indicates its current status. Its value can be: - -- `pending`: The payment session is awaiting authorization. -- `requires_more`: The payment session requires an action before it’s authorized. For example, to enter a 3DS code. -- `authorized`: The payment session is authorized. -- `error`: An error occurred while authorizing the payment. -- `canceled`: The authorization of the payment session has been canceled. - - -# Pricing Concepts - -In this document, you’ll learn about the main concepts in the Pricing Module. - -## Price Set - -A [PriceSet](https://docs.medusajs.com/references/pricing/models/PriceSet/index.html.md) represents a collection of prices that are linked to a resource (for example, a product or a shipping option). - -Each of these prices are represented by the [Price data module](https://docs.medusajs.com/references/pricing/models/Price/index.html.md). - -![A diagram showcasing the relation between the price set and price](https://res.cloudinary.com/dza7lstvk/image/upload/v1709648650/Medusa%20Resources/price-set-money-amount_xeees0.jpg) - -*** - -## Price List - -A [PriceList](https://docs.medusajs.com/references/pricing/models/PriceList/index.html.md) is a group of prices only enabled if their conditions and rules are satisfied. - -A price list has optional `start_date` and `end_date` properties that indicate the date range in which a price list can be applied. - -Its associated prices are represented by the `Price` data model. - - -# Payment Webhook Events - -In this guide, you’ll learn how you can handle payment webhook events in your Medusa application and using the Payment Module. - -## What's a Payment Webhook Event? - -A payment webhook event is a request sent from a third-party payment provider to your application. It indicates a change in a payment’s status. - -This is useful in many cases such as: - -- When a payment is processed (authorized or captured) asynchronously. -- When a payment is managed on the third-party payment provider's side. -- When a payment action on the frontend was interrupted, leading the payment to be processed without an order being created in the Medusa application. - -So, it's essential to handle webhook events to ensure that your application is aware of updated payment statuses and can take appropriate actions. - -*** - -## How to Handle Payment Webhook Events - -### Webhook Listener API Route - -The Medusa application has a `/hooks/payment/[identifier]_[provider]` API route out-of-the-box that allows you to listen to webhook events from third-party payment providers, where: - -- `[identifier]` is the `identifier` static property defined in the payment provider. For example, `stripe`. -- `[provider]` is the ID of the provider. For example, `stripe`. - -For example, when integrating basic Stripe payments with the [Stripe Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md), the webhook listener route is `/hooks/payment/stripe_stripe`. - -You can use this webhook listener when configuring webhook events in your third-party payment provider. - -### getWebhookActionAndData Method - -The webhook listener API route executes the [getWebhookActionAndData method](https://docs.medusajs.com/references/payment/getWebhookActionAndData/index.html.md) of the Payment Module's main service. This method delegates handling of incoming webhook events to the relevant payment provider. - -Payment providers have a similar [getWebhookActionAndData method](https://docs.medusajs.com/references/payment/provider/index.html.md) to process the webhook event. So, if you're implementing a custom payment provider, make sure to implement it to handle webhook events. - -![A diagram showcasing the steps of how the getWebhookActionAndData method words](https://res.cloudinary.com/dza7lstvk/image/upload/v1711567415/Medusa%20Resources/payment-webhook_seaocg.jpg) - -If the `getWebhookActionAndData` method returns an `authorized` or `captured` action, the Medusa application will perform one of the following actions: - -View the full flow of the webhook event processing in the [processPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/processPaymentWorkflow/index.html.md) reference. - -- If the method returns an `authorized` action, Medusa will set the associated payment session to `authorized`. -- If the method returns a `captured` action, Medusa will set the associated payment session to `captured`. -- In either cases, if the cart associated with the payment session is not completed yet, Medusa will complete the cart. - - -# Links between Pricing Module and Other Modules - -This document showcases the module links defined between the Pricing Module and other Commerce Modules. - -## Summary - -The Pricing Module has the following links to other modules: - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|ShippingOption|PriceSet|Stored - one-to-one|Learn more| -|ProductVariant|PriceSet|Stored - one-to-one|Learn more| - -*** - -## Fulfillment Module - -The Fulfillment Module provides fulfillment-related functionalities, including shipping options that the customer chooses from when they place their order. However, it doesn't provide pricing-related functionalities for these options. - -Medusa defines a link between the `PriceSet` and `ShippingOption` data models. A shipping option's price is stored as a price set. - -![A diagram showcasing an example of how data models from the Pricing and Fulfillment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716561747/Medusa%20Resources/pricing-fulfillment_spywwa.jpg) - -### Retrieve with Query - -To retrieve the shipping option of a price set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `shipping_option.*` in `fields`: - -### query.graph - -```ts -const { data: priceSets } = await query.graph({ - entity: "price_set", - fields: [ - "shipping_option.*", - ], -}) - -// priceSets[0].shipping_option -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: priceSets } = useQueryGraphStep({ - entity: "price_set", - fields: [ - "shipping_option.*", - ], -}) - -// priceSets[0].shipping_option -``` - -### Manage with Link - -To manage the price set of a shipping option, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.FULFILLMENT]: { - shipping_option_id: "so_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.FULFILLMENT]: { - shipping_option_id: "so_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -*** - -## Product Module - -The Product Module doesn't store or manage the prices of product variants. - -Medusa defines a link between the `ProductVariant` and the `PriceSet`. A product variant’s prices are stored as prices belonging to a price set. - -![A diagram showcasing an example of how data models from the Pricing and Product Module are linked. The PriceSet is linked to the ProductVariant of the Product Module.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651039/Medusa%20Resources/pricing-product_m4xaut.jpg) - -So, when you want to add prices for a product variant, you create a price set and add the prices to it. - -You can then benefit from adding rules to prices or using the `calculatePrices` method to retrieve the price of a product variant within a specified context. - -### Retrieve with Query - -To retrieve the variant of a price set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: - -### query.graph - -```ts -const { data: priceSets } = await query.graph({ - entity: "price_set", - fields: [ - "variant.*", - ], -}) - -// priceSets[0].variant -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: priceSets } = useQueryGraphStep({ - entity: "price_set", - fields: [ - "variant.*", - ], -}) - -// priceSets[0].variant -``` - -### Manage with Link - -To manage the price set of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - - -# Prices Calculation - -In this document, you'll learn how prices are calculated when you use the [calculatePrices method](https://docs.medusajs.com/references/pricing/calculatePrices/index.html.md) of the Pricing Module's main service. - -## calculatePrices Method - -The [calculatePrices method](https://docs.medusajs.com/references/pricing/calculatePrices/index.html.md) accepts as parameters the ID of one or more price sets and a context. - -It returns a price object with the best matching price for each price set. - -### Calculation Context - -The calculation context is an optional object passed as a second parameter to the `calculatePrices` method. It accepts rules to restrict the selected prices in the price set. - -For example: - -```ts -const price = await pricingModuleService.calculatePrices( - { id: [priceSetId] }, - { - context: { - currency_code: currencyCode, - region_id: "reg_123", - }, - } -) -``` - -In this example, you retrieve the prices in a price set for the specified currency code and region ID. - -### Returned Price Object - -For each price set, the `calculatePrices` method selects two prices: - -- A calculated price: Either a price that belongs to a price list and best matches the specified context, or the same as the original price. -- An original price, which is either: - - The same price as the calculated price if the price list it belongs to is of type `override`; - - Or a price that doesn't belong to a price list and best matches the specified context. - -Both prices are returned in an object that has the following properties: - -- id: (\`string\`) The ID of the price set from which the price was selected. -- is\_calculated\_price\_price\_list: (\`boolean\`) Whether the calculated price belongs to a price list. -- calculated\_amount: (\`number\`) The amount of the calculated price, or \`null\` if there isn't a calculated price. This is the amount shown to the customer. -- is\_original\_price\_price\_list: (\`boolean\`) Whether the original price belongs to a price list. -- original\_amount: (\`number\`) The amount of the original price, or \`null\` if there isn't an original price. This amount is useful to compare with the \`calculated\_amount\`, such as to check for discounted value. -- currency\_code: (\`string\`) The currency code of the calculated price, or \`null\` if there isn't a calculated price. -- is\_calculated\_price\_tax\_inclusive: (\`boolean\`) Whether the calculated price is tax inclusive. Learn more about tax-inclusivity in \[this document]\(../tax-inclusive-pricing/page.mdx) -- is\_original\_price\_tax\_inclusive: (\`boolean\`) Whether the original price is tax inclusive. Learn more about tax-inclusivity in \[this document]\(../tax-inclusive-pricing/page.mdx) -- calculated\_price: (\`object\`) The calculated price's price details. - - - id: (\`string\`) The ID of the price. - - - price\_list\_id: (\`string\`) The ID of the associated price list. - - - price\_list\_type: (\`string\`) The price list's type. For example, \`sale\`. - - - min\_quantity: (\`number\`) The price's min quantity condition. - - - max\_quantity: (\`number\`) The price's max quantity condition. -- original\_price: (\`object\`) The original price's price details. - - - id: (\`string\`) The ID of the price. - - - price\_list\_id: (\`string\`) The ID of the associated price list. - - - price\_list\_type: (\`string\`) The price list's type. For example, \`sale\`. - - - min\_quantity: (\`number\`) The price's min quantity condition. - - - max\_quantity: (\`number\`) The price's max quantity condition. - -*** - -## Examples - -Consider the following price set: - -```ts -const priceSet = await pricingModuleService.createPriceSets({ - prices: [ - // default price - { - amount: 500, - currency_code: "EUR", - rules: {}, - }, - // prices with rules - { - amount: 400, - currency_code: "EUR", - rules: { - region_id: "reg_123", - }, - }, - { - amount: 450, - currency_code: "EUR", - rules: { - city: "krakow", - }, - }, - { - amount: 500, - currency_code: "EUR", - rules: { - city: "warsaw", - region_id: "reg_123", - }, - }, - { - amount: 200, - currency_code: "EUR", - min_quantity: 100, - }, - ], -}) -``` - -### Default Price Selection - -### Code - -```ts -const price = await pricingModuleService.calculatePrices( - { id: [priceSet.id] }, - { - context: { - currency_code: "EUR" - } - } -) -``` - -### Result - -### Calculate Prices with Rules - -### Code - -```ts -const price = await pricingModuleService.calculatePrices( - { id: [priceSet.id] }, - { - context: { - currency_code: "EUR", - region_id: "reg_123", - city: "krakow" - } - } -) -``` - -### Result - -### Tiered Pricing Selection - -### Code - -```ts -const price = await pricingModuleService.calculatePrices( - { id: [priceSet.id] }, - { - context: { - cart: { - items: [ - { - id: "item_1", - quantity: 200, - // assuming the price set belongs to this variant - variant_id: "variant_1", - // ... - } - ], - // ... - } - } - } -) -``` - -### Result - -### Price Selection with Price List - -### Code - -```ts -const priceList = pricingModuleService.createPriceLists([{ - title: "Summer Price List", - description: "Price list for summer sale", - starts_at: Date.parse("01/10/2023").toString(), - ends_at: Date.parse("31/10/2023").toString(), - rules: { - region_id: ['PL'] - }, - type: "sale", - prices: [ - { - amount: 400, - currency_code: "EUR", - price_set_id: priceSet.id, - }, - { - amount: 450, - currency_code: "EUR", - price_set_id: priceSet.id, - }, - ], -}]); - -const price = await pricingModuleService.calculatePrices( - { id: [priceSet.id] }, - { - context: { - currency_code: "EUR", - region_id: "PL", - city: "krakow" - } - } -) -``` - -### Result - - -# Tax-Inclusive Pricing - -In this document, you’ll learn about tax-inclusive pricing and how it's used when calculating prices. - -## What is Tax-Inclusive Pricing? - -A tax-inclusive price is a price of a resource that includes taxes. Medusa calculates the tax amount from the price rather than adds the amount to it. - -For example, if a product’s price is $50, the tax rate is 2%, and tax-inclusive pricing is enabled, then the product's price is $49, and the applied tax amount is $1. - -*** - -## How is Tax-Inclusive Pricing Set? - -The [PricePreference data model](https://docs.medusajs.com/references/pricing/models/PricePreference/index.html.md) holds the tax-inclusive setting for a context. It has two properties that indicate the context: - -- `attribute`: The name of the attribute to compare against. For example, `region_id` or `currency_code`. -- `value`: The attribute’s value. For example, `reg_123` or `usd`. - -Only `region_id` and `currency_code` are supported as an `attribute` at the moment. - -The `is_tax_inclusive` property indicates whether tax-inclusivity is enabled in the specified context. - -For example: - -```json -{ - "attribute": "currency_code", - "value": "USD", - "is_tax_inclusive": true, -} -``` - -In this example, tax-inclusivity is enabled for the `USD` currency code. - -*** - -## Tax-Inclusive Pricing in Price Calculation - -### Tax Context - -As mentioned in the [Price Calculation documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md), The `calculatePrices` method accepts as a parameter a calculation context. - -To get accurate tax results, pass the `region_id` and / or `currency_code` in the calculation context. - -### Returned Tax Properties - -The `calculatePrices` method returns two properties related to tax-inclusivity: - -Learn more about the returned properties in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#returned-price-object/index.html.md). - -- `is_calculated_price_tax_inclusive`: Whether the selected `calculated_price` is tax-inclusive. -- `is_original_price_tax_inclusive` : Whether the selected `original_price` is tax-inclusive. - -A price is considered tax-inclusive if: - -1. It belongs to the region or currency code specified in the calculation context; -2. and the region or currency code has a price preference with `is_tax_inclusive` enabled. - -### Tax Context Precedence - -A region’s price preference’s `is_tax_inclusive`'s value takes higher precedence in determining whether a price is tax-inclusive if: - -- both the `region_id` and `currency_code` are provided in the calculation context; -- the selected price belongs to the region; -- and the region has a price preference - - -# Price Tiers and Rules - -In this Pricing Module guide, you'll learn about tired prices, price rules for price sets and price lists, and how to add rules to a price. - -## Tiered Pricing - -Each price, represented by the [Price data model](https://docs.medusajs.com/references/pricing/models/Price/index.html.md), has two optional properties that can be used to create tiered prices: - -- `min_quantity`: The minimum quantity that must be in the cart for the price to be applied. -- `max_quantity`: The maximum quantity that can be in the cart for the price to be applied. - -This is useful to set tiered pricing for resources like product variants and shipping options. - -For example, you can set a variant's price to: - -- `$10` by default. -- `$8` when the customer adds `10` or more of the variant to the cart. -- `$6` when the customer adds `20` or more of the variant to the cart. - -These price definitions would look like this: - -```json title="Example Prices" -[ - // default price - { - "amount": 10, - "currency_code": "usd", - }, - { - "amount": 8, - "currency_code": "usd", - "min_quantity": 10, - "max_quantity": 19, - }, - { - "amount": 6, - "currency_code": "usd", - "min_quantity": 20, - }, -], -``` - -### How to Create Tiered Prices? - -When you create prices, you can specify a `min_quantity` and `max_quantity` for each price. This allows you to create tiered pricing, where the price changes based on the quantity of items in the cart. - -For example: - -For most use cases where you're building customizations in the Medusa application, it's highly recommended to use [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) rather than using the Pricing Module directly. Medusa's workflows already implement extensive functionalities that you can re-use in your custom flows, with reliable roll-back mechanism. - -### Using Medusa Workflows - -```ts highlights={tieredPricingHighlights} -const { result } = await createProductsWorkflow(container) - .run({ - input: { - products: [{ - variants: [{ - id: "variant_1", - prices: [ - // default price - { - amount: 10, - currency_code: "usd", - }, - { - amount: 8, - currency_code: "usd", - min_quantity: 10, - max_quantity: 19, - }, - { - amount: 6, - currency_code: "usd", - min_quantity: 20, - }, - ], - // ... - }], - }], - // ... - }, - }) -``` - -### Using the Pricing Module - -```ts -const priceSet = await pricingModule.addPrices({ - priceSetId: "pset_1", - prices: [ - // default price - { - amount: 10, - currency_code: "usd", - }, - // tiered prices - { - amount: 8, - currency_code: "usd", - min_quantity: 10, - max_quantity: 19, - }, - { - amount: 6, - currency_code: "usd", - min_quantity: 20, - }, - ], -}) -``` - -In this example, you create a product with a variant whose default price is `$10`. You also add two tiered prices that set the price to `$8` when the quantity is between `10` and `19`, and to `$6` when the quantity is `20` or more. - -### How are Tiered Prices Applied? - -The [price calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) mechanism considers the cart's items as a context when choosing the best price to apply. - -For example, consider the customer added the `variant_1` product variant (created in the workflow snippet of the [above section](#how-to-create-tiered-prices)) to their cart with a quantity of `15`. - -The price calculation mechanism will choose the second price, which is `$8`, because the quantity of `15` is between `10` and `19`. - -If there are other rules applied to the price, they may affect the price calculation. Keep reading to learn about other price rules, and refer to the [Price Calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) guide for more details on the calculation mechanism. - -*** - -## Price Rule - -You can also restrict prices by advanced rules, such as a customer's group, zip code, or a cart's total. - -Each rule of a price is represented by the [PriceRule data model](https://docs.medusajs.com/references/pricing/models/PriceRule/index.html.md). - -The `Price` data model has a `rules_count` property, which indicates how many rules, represented by `PriceRule`, are applied to the price. - -For exmaple, you create a price restricted to `10557` zip codes. - -![A diagram showcasing the relation between the PriceRule and Price](https://res.cloudinary.com/dza7lstvk/image/upload/v1709648772/Medusa%20Resources/price-rule-1_vy8bn9.jpg) - -A price can have multiple price rules. - -For example, a price can be restricted by a region and a zip code. - -![A diagram showcasing the relation between the PriceRule and Price with multiple rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709649296/Medusa%20Resources/price-rule-3_pwpocz.jpg) - -### Price List Rules - -Rules applied to a price list are represented by the [PriceListRule data model](https://docs.medusajs.com/references/pricing/models/PriceListRule/index.html.md). - -The `rules_count` property of a `PriceList` indicates how many rules are applied to it. - -![A diagram showcasing the relation between the PriceSet, PriceList, Price, RuleType, and PriceListRuleValue](https://res.cloudinary.com/dza7lstvk/image/upload/v1709641999/Medusa%20Resources/price-list_zd10yd.jpg) - -### How to Create Prices with Rules? - -When you create prices, you can specify rules for each price. This allows you to create complex pricing strategies based on different contexts. - -For example: - -For most use cases where you're building customizations in the Medusa application, it's highly recommended to use [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) rather than using the Pricing Module directly. Medusa's workflows already implement extensive functionalities that you can re-use in your custom flows, with reliable roll-back mechanism. - -### Using Medusa Workflows - -```ts highlights={workflowHighlights} -const { result } = await createShippingOptionsWorkflow(container) - .run({ - input: [{ - name: "Standard Shipping", - service_zone_id: "serzo_123", - shipping_profile_id: "sp_123", - provider_id: "prov_123", - type: { - label: "Standard", - description: "Standard shipping", - code: "standard", - }, - price_type: "flat", - prices: [ - // default price - { - currency_code: "usd", - amount: 10, - rules: {}, - }, - // price if cart total >= $100 - { - currency_code: "usd", - amount: 0, - rules: { - item_total: { - operator: "gte", - value: 100, - }, - }, - }, - ], - }], - }) -``` - -### Using the Pricing Module - -```ts -const priceSet = await pricingModule.addPrices({ - priceSetId: "pset_1", - prices: [ - // default price - { - currency_code: "usd", - amount: 10, - rules: {}, - }, - // price if cart total >= $100 - { - currency_code: "usd", - amount: 0, - rules: { - item_total: { - operator: "gte", - value: 100, - }, - }, - }, - ], -}) -``` - -In this example, you create a shipping option whose default price is `$10`. When the total of the cart or order using this shipping option is greater than `$100`, the shipping option's price becomes free. - -### How is the Price Rule Applied? - -The [price calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) mechanism considers a price applicable when the resource that this price is in matches the specified rules. - -For example, a [cart object](https://docs.medusajs.com/api/store#carts_cart_schema) has an `item_total` property. So, if a shipping option has the following price: - -```json -{ - "currency_code": "usd", - "amount": 0, - "rules": { - "item_total": { - "operator": "gte", - "value": 100, - } - } -} -``` - -The shipping option's price is applied when the cart's `item_total` is greater than or equal to `$100`. - -You can also apply the rule on nested relations and properties. For example, to apply a shipping option's price based on the customer's group, you can apply a rule on the `customer.group.id` attribute: - -```json -{ - "currency_code": "usd", - "amount": 0, - "rules": { - "customer.group.id": { - "operator": "eq", - "value": "cusgrp_123" - } - } -} -``` - -In this example, the price is only applied if a cart's customer belongs to the customer group of ID `cusgrp_123`. - -These same rules apply to product variant prices as well, or any other resource that has a price. - - -# Configure Selling Products - -In this guide, you'll learn how to set up and configure your products based on their shipping and inventory requirements, the product type, how you want to sell them, or your commerce ecosystem. - -The concepts in this guide are applicable starting from Medusa v2.5.1. - -## Scenario - -Businesses can have different selling requirements: - -1. They may sell physical or digital items. -2. They may sell items that don't require shipping or inventory management, such as selling digital products, services, or booking appointments. -3. They may sell items whose inventory is managed by an external system, such as an ERP. - -Medusa supports these different selling requirements by allowing you to configure shipping and inventory requirements for products and their variants. This guide explains how these configurations work, then provides examples of setting up different use cases. - -*** - -## Configuring Shipping Requirements - -The Medusa application defines a link between the `Product` data model and a [ShippingProfile](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/concepts#shipping-profile/index.html.md) in the [Fulfillment Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/index.html.md), allowing you to associate a product with a shipping profile. - -When a product is associated with a shipping profile, its variants require shipping and fulfillment when purchased. This is useful for physical products or digital products that require custom fulfillment. - -If a product doesn't have an associated shipping profile, its variants don't require shipping and fulfillment when purchased. This is useful for digital products, for example, that don't require shipping. - -### Overriding Shipping Requirements for Variants - -A product variant whose inventory is managed by Medusa (its `manage_inventory` property is enabled) has an [inventory item](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/concepts#inventoryitem/index.html.md). The inventory item has a `requires_shipping` property that can be used to override its shipping requirement. This is useful if the product has an associated shipping profile but you want to disable shipping for a specific variant, or vice versa. - -Learn more about product variant's inventory in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). - -When a product variant is purchased, the Medusa application decides whether the purchased item requires shipping in the following order: - -1. The product variant has an inventory item. In this case, the Medusa application uses the inventory item's `requires_shipping` property to determine if the item requires shipping. -2. If the product variant doesn't have an inventory item, the Medusa application checks whether the product has an associated shipping profile to determine if the item requires shipping. - -*** - -## Use Case Examples - -By combining configurations of shipment requirements and inventory management, you can set up your products to support your use case: - -|Use Case|Configurations|Example| -|---|---|---|---|---| -|Item that's shipped on purchase, and its variant inventory is managed by the Medusa application.||Any stock-kept item (clothing, for example), whose inventory is managed in the Medusa application.| -|Item that's shipped on purchase, but its variant inventory is managed externally (not by Medusa) or it has infinite stock.||Any stock-kept item (clothing, for example), whose inventory is managed in an ERP or has infinite stock.| -|Item that's not shipped on purchase, but its variant inventory is managed by Medusa.||Digital products, such as licenses, that don't require shipping but have a limited quantity.| -|Item that doesn't require shipping and its variant inventory isn't managed by Medusa.||| - - -# Product Variant Inventory - -# Product Variant Inventory - -In this guide, you'll learn about the inventory management features related to product variants. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/products/variants#manage-product-variant-inventory/index.html.md) to learn how to manage inventory of product variants. - -## Configure Inventory Management of Product Variants - -A product variant, represented by the [ProductVariant](https://docs.medusajs.com/references/product/models/ProductVariant/index.html.md) data model, has a `manage_inventory` field that's disabled by default. This field indicates whether you'll manage the inventory quantity of the product variant in the Medusa application. You can also keep `manage_inventory` disabled if you manage the product's inventory in an external system, such as an ERP. - -The Product Module doesn't provide inventory-management features. Instead, the Medusa application uses the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) to manage inventory for products and variants. When `manage_inventory` is disabled, the Medusa application always considers the product variant to be in stock. This is useful if your product's variants aren't items that can be stocked, such as digital products, or they don't have a limited stock quantity. - -When `manage_inventory` is enabled, the Medusa application tracks the inventory of the product variant using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md). For example, when a customer purchases a product variant, the Medusa application decrements the stocked quantity of the product variant. - -*** - -## How the Medusa Application Manages Inventory - -When a product variant has `manage_inventory` enabled, the Medusa application creates an inventory item using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) and links it to the product variant. - -![Diagram showcasing the link between a product variant and its inventory item](https://res.cloudinary.com/dza7lstvk/image/upload/v1709652779/Medusa%20Resources/product-inventory_kmjnud.jpg) - -The inventory item has one or more locations, called inventory levels, that represent the stock quantity of the product variant at a specific location. This allows you to manage inventory across multiple warehouses, such as a warehouse in the US and another in Europe. - -![Diagram showcasing the link between a variant and its inventory item, and the inventory item's level.](https://res.cloudinary.com/dza7lstvk/image/upload/v1738580390/Medusa%20Resources/variant-inventory-level_bbee2t.jpg) - -Learn more about inventory concepts in the [Inventory Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/concepts/index.html.md). - -The Medusa application represents and manages stock locations using the [Stock Location Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md). It creates a read-only link between the `InventoryLevel` and `StockLocation` data models so that it can retrieve the stock location of an inventory level. - -![Diagram showcasing the read-only link between an inventory level and a stock location](https://res.cloudinary.com/dza7lstvk/image/upload/v1738582163/Medusa%20Resources/inventory-level-stock_amxfg5.jpg) - -Learn more about the Stock Location Module in the [Stock Location Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/concepts/index.html.md). - -### Product Inventory in Storefronts - -When a storefront sends a request to the Medusa application, it must always pass a [publishable API key](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md) in the request header. This API key specifies the sales channels, available through the [Sales Channel Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md), of the storefront. - -The Medusa application links sales channels to stock locations, indicating the locations available for a specific sales channel. So, all inventory-related operations are scoped by the sales channel and its associated stock locations. - -For example, the availability of a product variant is determined by the `stocked_quantity` of its inventory level at the stock location linked to the storefront's sales channel. - -![Diagram showcasing the overall relations between inventory, stock location, and sales channel concepts](https://res.cloudinary.com/dza7lstvk/image/upload/v1738582163/Medusa%20Resources/inventory-stock-sales_fknoxw.jpg) - -*** - -## Variant Back Orders - -Product variants have an `allow_backorder` field that's disabled by default. When enabled, the Medusa application allows customers to purchase the product variant even when it's out of stock. Use this when your product variant is available through on-demand or pre-order purchase. - -You can also allow customers to subscribe to restock notifications of a product variant as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/recipes/commerce-automation/restock-notification/index.html.md). - -*** - -## Additional Resources - -The following guides provide more details on inventory management in the Medusa application: - -- [Inventory Kits in the Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/inventory-kit/index.html.md): Learn how you can implement bundled or multi-part products through the Inventory Module. -- [Retrieve Product Variant Inventory Quantity](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/guides/variant-inventory/index.html.md): Learn how to retrieve the available inventory quantity of a product variant. -- [Configure Selling Products](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/selling-products/index.html.md): Learn how to use inventory management to support different use cases when selling products. -- [Inventory in Flows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/inventory-in-flows/index.html.md): Learn how Medusa utilizes inventory management in different flows. -- [Storefront guide: how to retrieve a product variant's inventory details](https://docs.medusajs.com/resources/storefront-development/products/inventory/index.html.md). - - -# Links between Region Module and Other Modules - -This document showcases the module links defined between the Region Module and other Commerce Modules. - -## Summary - -The Region Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Cart|Region|Read-only - has one|Learn more| -|Order|Region|Read-only - has one|Learn more| -|Region|PaymentProvider|Stored - many-to-many|Learn more| - -*** - -## Cart Module - -Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `Region` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the region of a cart, and not the other way around. - -### Retrieve with Query - -To retrieve the region of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: - -### query.graph - -```ts -const { data: carts } = await query.graph({ - entity: "cart", - fields: [ - "region.*", - ], -}) - -// carts[0].region -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: carts } = useQueryGraphStep({ - entity: "cart", - fields: [ - "region.*", - ], -}) - -// carts[0].region -``` - -*** - -## Order Module - -Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `Region` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the region of an order, and not the other way around. - -### Retrieve with Query - -To retrieve the region of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "region.*", - ], -}) - -// orders[0].region -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "region.*", - ], -}) - -// orders[0].region -``` - -*** - -## Payment Module - -You can specify for each region which payment providers are available for use. - -Medusa defines a module link between the `PaymentProvider` and the `Region` data models. - -![A diagram showcasing an example of how resources from the Payment and Region modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711569520/Medusa%20Resources/payment-region_jyo2dz.jpg) - -### Retrieve with Query - -To retrieve the payment providers of a region with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `payment_providers.*` in `fields`: - -### query.graph - -```ts -const { data: regions } = await query.graph({ - entity: "region", - fields: [ - "payment_providers.*", - ], -}) - -// regions[0].payment_providers -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: regions } = useQueryGraphStep({ - entity: "region", - fields: [ - "payment_providers.*", - ], -}) - -// regions[0].payment_providers -``` - -### Manage with Link - -To manage the payment providers in a region, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.REGION]: { - region_id: "reg_123", - }, - [Modules.PAYMENT]: { - payment_provider_id: "pp_stripe_stripe", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.REGION]: { - region_id: "reg_123", - }, - [Modules.PAYMENT]: { - payment_provider_id: "pp_stripe_stripe", - }, -}) -``` - - -# Promotion Actions - -In this document, you’ll learn about promotion actions and how they’re computed using the [computeActions method](https://docs.medusajs.com/references/promotion/computeActions/index.html.md). - -## computeActions Method - -The Promotion Module's main service has a [computeActions method](https://docs.medusajs.com/references/promotion/computeActions/index.html.md) that returns an array of actions to perform on a cart when one or more promotions are applied. - -Actions inform you what adjustment must be made to a cart item or shipping method. Each action is an object having the `action` property indicating the type of action. - -*** - -## Action Types - -### `addItemAdjustment` Action - -The `addItemAdjustment` action indicates that an adjustment must be made to an item. For example, removing $5 off its amount. - -This action has the following format: - -```ts -export interface AddItemAdjustmentAction { - action: "addItemAdjustment" - item_id: string - amount: number - code: string - description?: string -} -``` - -This action means that a new record should be created of the `LineItemAdjustment` data model in the Cart Module, or `OrderLineItemAdjustment` data model in the Order Module. - -Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.AddItemAdjustmentAction/index.html.md) for details on the object’s properties. - -### `removeItemAdjustment` Action - -The `removeItemAdjustment` action indicates that an adjustment must be removed from a line item. For example, remove the $5 discount. - -The `computeActions` method accepts any previous item adjustments in the `items` property of the second parameter. - -This action has the following format: - -```ts -export interface RemoveItemAdjustmentAction { - action: "removeItemAdjustment" - adjustment_id: string - description?: string - code: string -} -``` - -This action means that a new record should be removed of the `LineItemAdjustment` (or `OrderLineItemAdjustment`) with the specified ID in the `adjustment_id` property. - -Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.RemoveItemAdjustmentAction/index.html.md) for details on the object’s properties. - -### `addShippingMethodAdjustment` Action - -The `addShippingMethodAdjustment` action indicates that an adjustment must be made on a shipping method. For example, make the shipping method free. - -This action has the following format: - -```ts -export interface AddShippingMethodAdjustment { - action: "addShippingMethodAdjustment" - shipping_method_id: string - amount: number - code: string - description?: string -} -``` - -This action means that a new record should be created of the `ShippingMethodAdjustment` data model in the Cart Module, or `OrderShippingMethodAdjustment` data model in the Order Module. - -Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.AddShippingMethodAdjustment/index.html.md) for details on the object’s properties. - -### `removeShippingMethodAdjustment` Action - -The `removeShippingMethodAdjustment` action indicates that an adjustment must be removed from a shipping method. For example, remove the free shipping discount. - -The `computeActions` method accepts any previous shipping method adjustments in the `shipping_methods` property of the second parameter. - -This action has the following format: - -```ts -export interface RemoveShippingMethodAdjustment { - action: "removeShippingMethodAdjustment" - adjustment_id: string - code: string -} -``` - -When the Medusa application receives this action type, it removes the `ShippingMethodAdjustment` (or `OrderShippingMethodAdjustment`) with the specified ID in the `adjustment_id` property. - -Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.RemoveShippingMethodAdjustment/index.html.md) for details on the object’s properties. - -### `campaignBudgetExceeded` Action - -When the `campaignBudgetExceeded` action is returned, the promotions within a campaign can no longer be used as the campaign budget has been exceeded. - -This action has the following format: - -```ts -export interface CampaignBudgetExceededAction { - action: "campaignBudgetExceeded" - code: string -} -``` - -Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.CampaignBudgetExceededAction/index.html.md) for details on the object’s properties. - - -# Application Method - -In this document, you'll learn what an application method is. - -## What is an Application Method? - -The [ApplicationMethod data model](https://docs.medusajs.com/references/promotion/models/ApplicationMethod/index.html.md) defines how a promotion is applied: - -|Property|Purpose| -|---|---| -|\`type\`|Does the promotion discount a fixed amount or a percentage?| -|\`target\_type\`|Is the promotion applied on a cart item, shipping method, or the entire order?| -|\`allocation\`|Is the discounted amount applied on each item or split between the applicable items?| - -## Target Promotion Rules - -When the promotion is applied to a cart item or a shipping method, you can restrict which items/shipping methods the promotion is applied to. - -The `ApplicationMethod` data model has a collection of `PromotionRule` records to restrict which items or shipping methods the promotion applies to. The `target_rules` property represents this relation. - -![A diagram showcasing the target\_rules relation between the ApplicationMethod and PromotionRule data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709898273/Medusa%20Resources/application-method-target-rules_hqaymz.jpg) - -In this example, the promotion is only applied on products in the cart having the SKU `SHIRT`. - -*** - -## Buy Promotion Rules - -When the promotion’s type is `buyget`, you must specify the “buy X” condition. For example, a cart must have two shirts before the promotion can be applied. - -The application method has a collection of `PromotionRule` items to define the “buy X” rule. The `buy_rules` property represents this relation. - -![A diagram showcasing the buy\_rules relation between the ApplicationMethod and PromotionRule data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709898453/Medusa%20Resources/application-method-buy-rules_djjuhw.jpg) - -In this example, the cart must have two products with the SKU `SHIRT` for the promotion to be applied. - - -# Campaign - -In this document, you'll learn about campaigns. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/campaigns/index.html.md) to learn how to manage campaigns using the dashboard. - -## What is a Campaign? - -A [Campaign](https://docs.medusajs.com/references/promotion/models/Campaign/index.html.md) combines promotions under the same conditions, such as start and end dates. - -![A diagram showcasing the relation between the Campaign and Promotion data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709899225/Medusa%20Resources/campagin-promotion_hh3qsi.jpg) - -*** - -## Campaign Limits - -Each campaign has a budget represented by the [CampaignBudget data model](https://docs.medusajs.com/references/promotion/models/CampaignBudget/index.html.md). The budget limits how many times the promotion can be used. - -There are two types of budgets: - -- `spend`: An amount that, when crossed, the promotion becomes unusable. For example, if the amount limit is set to `$100`, and the total amount of usage of this promotion crosses that threshold, the promotion can no longer be applied. -- `usage`: The number of times that a promotion can be used. For example, if the usage limit is set to `10`, the promotion can be used only 10 times by customers. After that, it can no longer be applied. - -![A diagram showcasing the relation between the Campaign and CampaignBudget data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709899463/Medusa%20Resources/campagin-budget_rvqlmi.jpg) - - -# Promotion Concepts - -In this guide, you’ll learn about the main promotion and rule concepts in the Promotion Module. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/index.html.md) to learn how to manage promotions using the dashboard. - -## What is a Promotion? - -A promotion, represented by the [Promotion data model](https://docs.medusajs.com/references/promotion/models/Promotion/index.html.md), is a discount that can be applied on cart items, shipping methods, or entire orders. - -A promotion has two types: - -- `standard`: A standard promotion with rules. -- `buyget`: “A buy X get Y” promotion with rules. - -|\`standard\`|\`buyget\`| -|---|---| -|A coupon code that gives customers 10% off their entire order.|Buy two shirts and get another for free.| -|A coupon code that gives customers $15 off any shirt in their order.|Buy two shirts and get 10% off the entire order.| -|A discount applied automatically for VIP customers that removes 10% off their shipping method’s amount.|Spend $100 and get free shipping.| - -The Medusa Admin UI may not provide a way to create each of these promotion examples. However, they are supported by the Promotion Module and Medusa's workflows and API routes. - -*** - -## Promotion Rules - -A promotion can be restricted by a set of rules, each rule is represented by the [PromotionRule data model](https://docs.medusajs.com/references/promotion/models/PromotionRule/index.html.md). - -For example, you can create a promotion that only customers of the `VIP` customer group can use. - -![A diagram showcasing the relation between Promotion and PromotionRule](https://res.cloudinary.com/dza7lstvk/image/upload/v1709833196/Medusa%20Resources/promotion-promotion-rule_msbx0w.jpg) - -A `PromotionRule`'s `attribute` property indicates the property's name to which this rule is applied. For example, `customer_group_id`. - -The expected value for the attribute is stored in the `PromotionRuleValue` data model. So, a rule can have multiple values. - -When testing whether a promotion can be applied to a cart, the rule's `attribute` property and its values are tested on the cart itself. - -For example, the cart's customer must be part of the customer group(s) indicated in the promotion rule's value. - -### Flexible Rules - -The `PromotionRule`'s `operator` property adds more flexibility to the rule’s condition rather than simple equality (`eq`). - -For example, to restrict the promotion to only `VIP` and `B2B` customer groups: - -- Add a `PromotionRule` record with its `attribute` property set to `customer_group_id` and `operator` property to `in`. -- Add two `PromotionRuleValue` records associated with the rule: one with the value `VIP` and the other `B2B`. - -![A diagram showcasing the relation between PromotionRule and PromotionRuleValue when a rule has multiple values](https://res.cloudinary.com/dza7lstvk/image/upload/v1709897383/Medusa%20Resources/promotion-promotion-rule-multiple_hctpmt.jpg) - -In this case, a customer’s group must be in the `VIP` and `B2B` set of values to use the promotion. - -*** - -## How to Apply Rules on a Promotion? - -### Using Workflows - -If you're managing promotions using [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) or the API routes that use them, you can specify rules for the promotion or its [application method](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/application-method/index.html.md). - -For example, if you're creating a promotion using the [createPromotionsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createPromotionsWorkflow/index.html.md): - -```ts -const { result } = await createPromotionsWorkflow(container) - .run({ - input: { - promotionsData: [{ - code: "10OFF", - type: "standard", - status: "active", - application_method: { - type: "percentage", - target_type: "items", - allocation: "across", - value: 10, - currency_code: "usd", - }, - rules: [ - { - attribute: "customer.group.id", - operator: "eq", - values: [ - "cusgrp_123", - ], - }, - ], - }], - }, - }) -``` - -In this example, the promotion is restricted to customers with the `cusgrp_123` customer group. - -### Using Promotion Module's Service - -For most use cases, it's recommended to use [workflows](#using-workflows) instead of directly using the module's service. - -If you're managing promotions using the Promotion Module's service, you can specify rules for the promotion or its [application method](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/application-method/index.html.md) in its methods. - -For example, if you're creating a promotion with the [createPromotions](https://docs.medusajs.com/resources/references/promotion/createPromotions/index.html.md) method: - -```ts -const promotions = await promotionModuleService.createPromotions([ - { - code: "50OFF", - type: "standard", - status: "active", - application_method: { - type: "percentage", - target_type: "items", - value: 50, - }, - rules: [ - { - attribute: "customer.group.id", - operator: "eq", - values: [ - "cusgrp_123", - ], - }, - ], - }, -]) -``` - -In this example, the promotion is restricted to customers with the `cusgrp_123` customer group. - -### How is the Promotion Rule Applied? - -A promotion is applied on a resource if its attributes match the promotion's rules. - -For example, consider you have the following promotion with a rule that restricts the promotion to a specific customer: - -```json -{ - "code": "10OFF", - "type": "standard", - "status": "active", - "application_method": { - "type": "percentage", - "target_type": "items", - "allocation": "across", - "value": 10, - "currency_code": "usd" - }, - "rules": [ - { - "attribute": "customer_id", - "operator": "eq", - "values": [ - "cus_123" - ] - } - ] -} -``` - -When you try to apply this promotion on a cart, the cart's `customer_id` is compared to the promotion rule's value based on the specified operator. So, the promotion will only be applied if the cart's `customer_id` is equal to `cus_123`. - - -# Links between Product Module and Other Modules - -This document showcases the module links defined between the Product Module and other Commerce Modules. - -## Summary - -The Product Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|LineItem|Product|Read-only - has one|Learn more| -|Product|ShippingProfile|Stored - many-to-one|Learn more| -|ProductVariant|InventoryItem|Stored - many-to-many|Learn more| -|OrderLineItem|Product|Read-only - has one|Learn more| -|ProductVariant|PriceSet|Stored - one-to-one|Learn more| -|Product|SalesChannel|Stored - many-to-many|Learn more| - -*** - -## Cart Module - -Medusa defines read-only links between: - -- The [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItem` data model and the `Product` data model. Because the link is read-only from the `LineItem`'s side, you can only retrieve the product of a line item, and not the other way around. -- The `ProductVariant` data model and the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItem` data model. Because the link is read-only from the `LineItem`'s side, you can only retrieve the variant of a line item, and not the other way around. - -### Retrieve with Query - -To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: - -To retrieve the product, pass `product.*` in `fields`. - -### query.graph - -```ts -const { data: lineItems } = await query.graph({ - entity: "line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems[0].variant -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: lineItems } = useQueryGraphStep({ - entity: "line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems[0].variant -``` - -*** - -## Fulfillment Module - -Medusa defines a link between the `Product` data model and the `ShippingProfile` data model of the Fulfillment Module. Each product must belong to a shipping profile. - -This link is introduced in [Medusa v2.5.0](https://github.com/medusajs/medusa/releases/tag/v2.5.0). - -### Retrieve with Query - -To retrieve the shipping profile of a product with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `shipping_profile.*` in `fields`: - -### query.graph - -```ts -const { data: products } = await query.graph({ - entity: "product", - fields: [ - "shipping_profile.*", - ], -}) - -// products[0].shipping_profile -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: products } = useQueryGraphStep({ - entity: "product", - fields: [ - "shipping_profile.*", - ], -}) - -// products[0].shipping_profile -``` - -### Manage with Link - -To manage the shipping profile of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.FULFILLMENT]: { - shipping_profile_id: "sp_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.FULFILLMENT]: { - shipping_profile_id: "sp_123", - }, -}) -``` - -*** - -## Inventory Module - -The Inventory Module provides inventory-management features for any stock-kept item. - -Medusa defines a link between the `ProductVariant` and `InventoryItem` data models. Each product variant has different inventory details. - -![A diagram showcasing an example of how data models from the Product and Inventory modules are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709652779/Medusa%20Resources/product-inventory_kmjnud.jpg) - -When the `manage_inventory` property of a product variant is enabled, you can manage the variant's inventory in different locations through this relation. - -Learn more about product variant's inventory management in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). - -### Retrieve with Query - -To retrieve the inventory items of a product variant with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `inventory_items.*` in `fields`: - -### query.graph - -```ts -const { data: variants } = await query.graph({ - entity: "variant", - fields: [ - "inventory_items.*", - ], -}) - -// variants[0].inventory_items -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: variants } = useQueryGraphStep({ - entity: "variant", - fields: [ - "inventory_items.*", - ], -}) - -// variants[0].inventory_items -``` - -### Manage with Link - -To manage the inventory items of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.INVENTORY]: { - inventory_item_id: "iitem_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.INVENTORY]: { - inventory_item_id: "iitem_123", - }, -}) -``` - -*** - -## Order Module - -Medusa defines read-only links between: - -- the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `OrderLineItem` data model and the `Product` data model. Because the link is read-only from the `OrderLineItem`'s side, you can only retrieve the product of an order line item, and not the other way around. -- the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `OrderLineItem` data model and the `ProductVariant` data model. Because the link is read-only from the `OrderLineItem`'s side, you can only retrieve the variant of an order line item, and not the other way around. - -### Retrieve with Query - -To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: - -To retrieve the product, pass `product.*` in `fields`. - -### query.graph - -```ts -const { data: lineItems } = await query.graph({ - entity: "order_line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems[0].variant -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: lineItems } = useQueryGraphStep({ - entity: "order_line_item", - fields: [ - "variant.*", - ], -}) - -// lineItems[0].variant -``` - -*** - -## Pricing Module - -The Product Module doesn't provide pricing-related features. - -Instead, Medusa defines a link between the `ProductVariant` and the `PriceSet` data models. A product variant’s prices are stored belonging to a price set. - -![A diagram showcasing an example of how data models from the Pricing and Product Module are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651464/Medusa%20Resources/product-pricing_vlxsiq.jpg) - -So, to add prices for a product variant, create a price set and add the prices to it. - -### Retrieve with Query - -To retrieve the price set of a variant with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `price_set.*` in `fields`: - -### query.graph - -```ts -const { data: variants } = await query.graph({ - entity: "variant", - fields: [ - "price_set.*", - ], -}) - -// variants[0].price_set -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: variants } = useQueryGraphStep({ - entity: "variant", - fields: [ - "price_set.*", - ], -}) - -// variants[0].price_set -``` - -### Manage with Link - -To manage the price set of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - variant_id: "variant_123", - }, - [Modules.PRICING]: { - price_set_id: "pset_123", - }, -}) -``` - -*** - -## Sales Channel Module - -The Sales Channel Module provides functionalities to manage multiple selling channels in your store. - -Medusa defines a link between the `Product` and `SalesChannel` data models. A product can have different availability in different sales channels. - -![A diagram showcasing an example of how data models from the Product and Sales Channel modules are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651840/Medusa%20Resources/product-sales-channel_t848ik.jpg) - -### Retrieve with Query - -To retrieve the sales channels of a product with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: - -### query.graph - -```ts -const { data: products } = await query.graph({ - entity: "product", - fields: [ - "sales_channels.*", - ], -}) - -// products[0].sales_channels -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: products } = useQueryGraphStep({ - entity: "product", - fields: [ - "sales_channels.*", - ], -}) - -// products[0].sales_channels -``` - -### Manage with Link - -To manage the sales channels of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - - -# Links between Sales Channel Module and Other Modules - -This document showcases the module links defined between the Sales Channel Module and other Commerce Modules. - -## Summary - -The Sales Channel Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|ApiKey|SalesChannel|Stored - many-to-many|Learn more| -|Cart|SalesChannel|Read-only - has one|Learn more| -|Order|SalesChannel|Read-only - has one|Learn more| -|Product|SalesChannel|Stored - many-to-many|Learn more| -|SalesChannel|StockLocation|Stored - many-to-many|Learn more| - -*** - -## API Key Module - -A publishable API key allows you to easily specify the sales channel scope in a client request. - -Medusa defines a link between the `ApiKey` and the `SalesChannel` data models. - -![A diagram showcasing an example of how resources from the Sales Channel and API Key modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709812064/Medusa%20Resources/sales-channel-api-key_zmqi2l.jpg) - -### Retrieve with Query - -To retrieve the API keys associated with a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `publishable_api_keys.*` in `fields`: - -### query.graph - -```ts -const { data: salesChannels } = await query.graph({ - entity: "sales_channel", - fields: [ - "publishable_api_keys.*", - ], -}) - -// salesChannels[0].publishable_api_keys -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: salesChannels } = useQueryGraphStep({ - entity: "sales_channel", - fields: [ - "publishable_api_keys.*", - ], -}) - -// salesChannels[0].publishable_api_keys -``` - -### Manage with Link - -To manage the sales channels of an API key, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.API_KEY]: { - publishable_key_id: "apk_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.API_KEY]: { - publishable_key_id: "apk_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -*** - -## Cart Module - -Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `SalesChannel` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the sales channel of a cart, and not the other way around. - -### Retrieve with Query - -To retrieve the sales channel of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: - -### query.graph - -```ts -const { data: carts } = await query.graph({ - entity: "cart", - fields: [ - "sales_channel.*", - ], -}) - -// carts[0].sales_channel -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: carts } = useQueryGraphStep({ - entity: "cart", - fields: [ - "sales_channel.*", - ], -}) - -// carts[0].sales_channel -``` - -*** - -## Order Module - -Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `SalesChannel` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the sales channel of an order, and not the other way around. - -### Retrieve with Query - -To retrieve the sales channel of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: - -### query.graph - -```ts -const { data: orders } = await query.graph({ - entity: "order", - fields: [ - "sales_channel.*", - ], -}) - -// orders.sales_channel -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "sales_channel.*", - ], -}) - -// orders.sales_channel -``` - -*** - -## Product Module - -A product has different availability for different sales channels. Medusa defines a link between the `Product` and the `SalesChannel` data models. - -![A diagram showcasing an example of how resources from the Sales Channel and Product modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709809833/Medusa%20Resources/product-sales-channel_t848ik.jpg) - -A product can be available in more than one sales channel. You can retrieve only the products of a sales channel. - -### Retrieve with Query - -To retrieve the products of a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `products.*` in `fields`: - -### query.graph - -```ts -const { data: salesChannels } = await query.graph({ - entity: "sales_channel", - fields: [ - "products.*", - ], -}) - -// salesChannels[0].products -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: salesChannels } = useQueryGraphStep({ - entity: "sales_channel", - fields: [ - "products.*", - ], -}) - -// salesChannels[0].products -``` - -### Manage with Link - -To manage the sales channels of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.PRODUCT]: { - product_id: "prod_123", - }, - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, -}) -``` - -*** - -## Stock Location Module - -A stock location is associated with a sales channel. This scopes inventory quantities associated with that stock location by the associated sales channel. - -Medusa defines a link between the `SalesChannel` and `StockLocation` data models. - -![A diagram showcasing an example of how resources from the Sales Channel and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716796872/Medusa%20Resources/sales-channel-location_cqrih1.jpg) - -### Retrieve with Query - -To retrieve the stock locations of a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `stock_locations.*` in `fields`: - -### query.graph - -```ts -const { data: salesChannels } = await query.graph({ - entity: "sales_channel", - fields: [ - "stock_locations.*", - ], -}) - -// salesChannels[0].stock_locations -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: salesChannels } = useQueryGraphStep({ - entity: "sales_channel", - fields: [ - "stock_locations.*", - ], -}) - -// salesChannels[0].stock_locations -``` - -### Manage with Link - -To manage the stock locations of a sales channel, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, - [Modules.STOCK_LOCATION]: { - sales_channel_id: "sloc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, - [Modules.STOCK_LOCATION]: { - sales_channel_id: "sloc_123", - }, -}) -``` - - -# Publishable API Keys with Sales Channels - -In this document, you’ll learn what publishable API keys are and how to use them with sales channels. - -## Publishable API Keys with Sales Channels - -A publishable API key, provided by the API Key Module, is a client key scoped to one or more sales channels. - -When sending a request to a Store API route, you must pass a publishable API key in the header of the request: - -```bash -curl http://localhost:9000/store/products \ - x-publishable-api-key: {your_publishable_api_key} -``` - -The Medusa application infers the associated sales channels and ensures that only data relevant to the sales channel are used. - -*** - -## How to Create a Publishable API Key? - -To create a publishable API key, either use the [Medusa Admin](https://docs.medusajs.com/user-guide/settings/developer/publishable-api-keys/index.html.md) or the [Admin API Routes](https://docs.medusajs.com/api/admin#publishable-api-keys). - -*** - -## Access Sales Channels in Custom Store API Routes - -If you create an API route under the `/store` prefix, you can access the sales channels associated with the request's publishable API key using the `publishable_key_context` property of the request object. - -For example: - -```ts -import { MedusaStoreRequest, MedusaResponse } from "@medusajs/framework/http" -import { getVariantAvailability } from "@medusajs/framework/utils" - -export async function GET( - req: MedusaStoreRequest, - res: MedusaResponse -) { - const query = req.scope.resolve("query") - const sales_channel_ids = req.publishable_key_context.sales_channel_ids - - res.json({ - sales_channel_id: sales_channel_ids[0], - }) -} -``` - -In this example, you retrieve the scope's sales channel IDs using `req.publishable_key_context.sales_channel_ids`, whose value is an array of IDs. - -You can then use these IDs based on your business logic. For example, you can retrieve the sales channels' details using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). - -Notice that the request object's type is `MedusaStoreRequest` instead of `MedusaRequest` to ensure the availability of the `publishable_key_context` property. - - # Authentication Flows with the Auth Main Service In this document, you'll learn how to use the Auth Module's main service's methods to implement authentication flows and reset a user's password. @@ -27724,189 +21784,6 @@ In the example above, you use the `emailpass` provider, so you have to pass an o If the returned `success` property is `true`, the password has reset successfully. -# Links between Promotion Module and Other Modules - -This document showcases the module links defined between the Promotion Module and other Commerce Modules. - -## Summary - -The Promotion Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|Cart|Promotion|Stored - many-to-many|Learn more| -|LineItemAdjustment|Promotion|Read-only - has one|Learn more| -|Order|Promotion|Stored - many-to-many|Learn more| - -*** - -## Cart Module - -A promotion can be applied on line items and shipping methods of a cart. Medusa defines a link between the `Cart` and `Promotion` data models. - -![A diagram showcasing an example of how data models from the Cart and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711538015/Medusa%20Resources/cart-promotion_kuh9vm.jpg) - -Medusa also defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItemAdjustment` data model and the `Promotion` data model. Because the link is read-only from the `LineItemAdjustment`'s side, you can only retrieve the promotion applied on a line item, and not the other way around. - -### Retrieve with Query - -To retrieve the carts that a promotion is applied on with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `carts.*` in `fields`: - -To retrieve the promotion of a line item adjustment, pass `promotion.*` in `fields`. - -### query.graph - -```ts -const { data: promotions } = await query.graph({ - entity: "promotion", - fields: [ - "carts.*", - ], -}) - -// promotions[0].carts -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: promotions } = useQueryGraphStep({ - entity: "promotion", - fields: [ - "carts.*", - ], -}) - -// promotions[0].carts -``` - -### Manage with Link - -To manage the promotions of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.CART]: { - cart_id: "cart_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.CART]: { - cart_id: "cart_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - -*** - -## Order Module - -An order is associated with the promotion applied on it. Medusa defines a link between the `Order` and `Promotion` data models. - -![A diagram showcasing an example of how data models from the Order and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716555015/Medusa%20Resources/order-promotion_dgjzzd.jpg) - -### Retrieve with Query - -To retrieve the orders a promotion is applied on with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `orders.*` in `fields`: - -### query.graph - -```ts -const { data: promotions } = await query.graph({ - entity: "promotion", - fields: [ - "orders.*", - ], -}) - -// promotions[0].orders -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: promotions } = useQueryGraphStep({ - entity: "promotion", - fields: [ - "orders.*", - ], -}) - -// promotions[0].orders -``` - -### Manage with Link - -To manage the promotion of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.ORDER]: { - order_id: "order_123", - }, - [Modules.PROMOTION]: { - promotion_id: "promo_123", - }, -}) -``` - - # Auth Identity and Actor Types In this document, you’ll learn about concepts related to identity and actors in the Auth Module. @@ -27976,58 +21853,6 @@ For example, if you have a custom module with a `Manager` data model, you can au Learn how to create a custom actor type in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/create-actor-type/index.html.md). -# Auth Module Provider - -In this guide, you’ll learn about the Auth Module Provider and how it's used. - -## What is an Auth Module Provider? - -An Auth Module Provider handles authenticating customers and users, either using custom logic or by integrating a third-party service. - -For example, the EmailPass Auth Module Provider authenticates a user using their email and password, whereas the Google Auth Module Provider authenticates users using their Google account. - -### Auth Providers List - -- [Emailpass](https://docs.medusajs.com/commerce-modules/auth/auth-providers/emailpass/index.html.md) -- [Google](https://docs.medusajs.com/commerce-modules/auth/auth-providers/google/index.html.md) -- [GitHub](https://docs.medusajs.com/commerce-modules/auth/auth-providers/github/index.html.md) - -*** - -## How to Create an Auth Module Provider? - -An Auth Module Provider is a module whose service extends the `AbstractAuthModuleProvider` imported from `@medusajs/framework/utils`. - -The module can have multiple auth provider services, where each is registered as a separate auth provider. - -Refer to the [Create Auth Module Provider](https://docs.medusajs.com/references/auth/provider/index.html.md) guide to learn how to create an Auth Module Provider. - -*** - -## Configure Allowed Auth Providers of Actor Types - -By default, users of all actor types can authenticate with all installed Auth Module Providers. - -To restrict the auth providers used for actor types, use the [authMethodsPerActor option](https://docs.medusajs.com/docs/learn/configurations/medusa-config#httpauthMethodsPerActor/index.html.md) in Medusa's configurations: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - projectConfig: { - http: { - authMethodsPerActor: { - user: ["google"], - customer: ["emailpass"], - }, - // ... - }, - // ... - }, -}) -``` - -When you specify the `authMethodsPerActor` configuration, it overrides the default. So, if you don't specify any providers for an actor type, users of that actor type can't authenticate with any provider. - - # How to Use Authentication Routes In this document, you'll learn about the authentication routes and how to use them to create and log-in users, and reset their password. @@ -28951,71 +22776,125 @@ The page shows the user password fields to enter their new password, then submit - [Storefront Guide: Reset Customer Password](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/reset-password/index.html.md) -# Stock Location Concepts +# Auth Module Provider -In this document, you’ll learn about the main concepts in the Stock Location Module. +In this guide, you’ll learn about the Auth Module Provider and how it's used. -## Stock Location +## What is an Auth Module Provider? -A stock location, represented by the `StockLocation` data model, represents a location where stock items are kept. For example, a warehouse. +An Auth Module Provider handles authenticating customers and users, either using custom logic or by integrating a third-party service. -Medusa uses stock locations to provide inventory details, from the Inventory Module, per location. +For example, the EmailPass Auth Module Provider authenticates a user using their email and password, whereas the Google Auth Module Provider authenticates users using their Google account. + +### Auth Providers List + +- [Emailpass](https://docs.medusajs.com/commerce-modules/auth/auth-providers/emailpass/index.html.md) +- [Google](https://docs.medusajs.com/commerce-modules/auth/auth-providers/google/index.html.md) +- [GitHub](https://docs.medusajs.com/commerce-modules/auth/auth-providers/github/index.html.md) *** -## StockLocationAddress +## How to Create an Auth Module Provider? -The `StockLocationAddress` data model belongs to the `StockLocation` data model. It provides more detailed information of the location, such as country code or street address. +An Auth Module Provider is a module whose service extends the `AbstractAuthModuleProvider` imported from `@medusajs/framework/utils`. + +The module can have multiple auth provider services, where each is registered as a separate auth provider. + +Refer to the [Create Auth Module Provider](https://docs.medusajs.com/references/auth/provider/index.html.md) guide to learn how to create an Auth Module Provider. + +*** + +## Configure Allowed Auth Providers of Actor Types + +By default, users of all actor types can authenticate with all installed Auth Module Providers. + +To restrict the auth providers used for actor types, use the [authMethodsPerActor option](https://docs.medusajs.com/docs/learn/configurations/medusa-config#httpauthMethodsPerActor/index.html.md) in Medusa's configurations: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + projectConfig: { + http: { + authMethodsPerActor: { + user: ["google"], + customer: ["emailpass"], + }, + // ... + }, + // ... + }, +}) +``` + +When you specify the `authMethodsPerActor` configuration, it overrides the default. So, if you don't specify any providers for an actor type, users of that actor type can't authenticate with any provider. -# Links between Stock Location Module and Other Modules +# API Key Concepts -This document showcases the module links defined between the Stock Location Module and other Commerce Modules. +In this document, you’ll learn about the different types of API keys, their expiration and verification. + +## API Key Types + +There are two types of API keys: + +- `publishable`: A public key used in client applications, such as a storefront. +- `secret`: A secret key used for authentication and verification purposes, such as an admin user’s authentication token or a password reset token. + +The API key’s type is stored in the `type` property of the [ApiKey data model](https://docs.medusajs.com/references/api-key/models/ApiKey/index.html.md). + +*** + +## API Key Expiration + +An API key expires when it’s revoked using the [revoke method of the module’s main service](https://docs.medusajs.com/references/api-key/revoke/index.html.md). + +The associated token is no longer usable or verifiable. + +*** + +## Token Verification + +To verify a token received as an input or in a request, use the [authenticate method of the module’s main service](https://docs.medusajs.com/references/api-key/authenticate/index.html.md) which validates the token against all non-expired tokens. + + +# Links between API Key Module and Other Modules + +This document showcases the module links defined between the API Key Module and other Commerce Modules. ## Summary -The Stock Location Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. +The API Key Module has the following links to other modules: |First Data Model|Second Data Model|Type|Description| |---|---|---|---| -|FulfillmentSet|StockLocation|Stored - many-to-one|Learn more| -|FulfillmentProvider|StockLocation|Stored - many-to-many|Learn more| -|InventoryLevel|StockLocation|Read-only - has many|Learn more| -|SalesChannel|StockLocation|Stored - many-to-many|Learn more| +|ApiKey|SalesChannel|Stored - many-to-many|Learn more| *** -## Fulfillment Module +## Sales Channel Module -A fulfillment set can be conditioned to a specific stock location. +You can create a publishable API key and associate it with a sales channel. Medusa defines a link between the `ApiKey` and the `SalesChannel` data models. -Medusa defines a link between the `FulfillmentSet` and `StockLocation` data models. +![A diagram showcasing an example of how data models from the API Key and Sales Channel modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709812064/Medusa%20Resources/sales-channel-api-key_zmqi2l.jpg) -![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1712567101/Medusa%20Resources/fulfillment-stock-location_nlkf7e.jpg) +This is useful to avoid passing the sales channel's ID as a parameter of every request, and instead pass the publishable API key in the header of any request to the Store API route. -Medusa also defines a link between the `FulfillmentProvider` and `StockLocation` data models to indicate the providers that can be used in a location. - -![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399492/Medusa%20Resources/fulfillment-provider-stock-location_b0mulo.jpg) +Learn more about this in the [Sales Channel Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md). ### Retrieve with Query -To retrieve the fulfillment sets of a stock location with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `fulfillment_sets.*` in `fields`: - -To retrieve the fulfillment providers, pass `fulfillment_providers.*` in `fields`. +To retrieve the sales channels of an API key with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: ### query.graph ```ts -const { data: stockLocations } = await query.graph({ - entity: "stock_location", +const { data: apiKeys } = await query.graph({ + entity: "api_key", fields: [ - "fulfillment_sets.*", + "sales_channels.*", ], }) -// stockLocations[0].fulfillment_sets +// apiKeys[0].sales_channels ``` ### useQueryGraphStep @@ -29025,14 +22904,698 @@ import { useQueryGraphStep } from "@medusajs/medusa/core-flows" // ... -const { data: stockLocations } = useQueryGraphStep({ - entity: "stock_location", +const { data: apiKeys } = useQueryGraphStep({ + entity: "api_key", fields: [ - "fulfillment_sets.*", + "sales_channels.*", ], }) -// stockLocations[0].fulfillment_sets +// apiKeys[0].sales_channels +``` + +### Manage with Link + +To manage the sales channels of an API key, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.API_KEY]: { + publishable_key_id: "apk_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.API_KEY]: { + publishable_key_id: "apk_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + + +# Customer Accounts + +In this document, you’ll learn how registered and unregistered accounts are distinguished in the Medusa application. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/customers/index.html.md) to learn how to manage customers using the dashboard. + +## `has_account` Property + +The [Customer data model](https://docs.medusajs.com/references/customer/models/Customer/index.html.md) has a `has_account` property, which is a boolean that indicates whether a customer is registered. + +When a guest customer places an order, a new `Customer` record is created with `has_account` set to `false`. + +When this or another guest customer registers an account with the same email, a new `Customer` record is created with `has_account` set to `true`. + +*** + +## Email Uniqueness + +The above behavior means that two `Customer` records may exist with the same email. However, the main difference is the `has_account` property's value. + +So, there can only be one guest customer (having `has_account=false`) and one registered customer (having `has_account=true`) with the same email. + + +# Links between Customer Module and Other Modules + +This document showcases the module links defined between the Customer Module and other Commerce Modules. + +## Summary + +The Customer Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Customer|AccountHolder|Stored - many-to-many|Learn more| +|Cart|Customer|Read-only - has one|Learn more| +|Order|Customer|Read-only - has one|Learn more| + +*** + +## Payment Module + +Medusa defines a link between the `Customer` and `AccountHolder` data models, allowing payment providers to save payment methods for a customer, if the payment provider supports it. + +This link is available starting from Medusa `v2.5.0`. + +### Retrieve with Query + +To retrieve the account holder associated with a customer with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: + +### query.graph + +```ts +const { data: customers } = await query.graph({ + entity: "customer", + fields: [ + "account_holder_link.account_holder.*", + ], +}) + +// customers[0].account_holder_link?.[0]?.account_holder +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: customers } = useQueryGraphStep({ + entity: "customer", + fields: [ + "account_holder_link.account_holder.*", + ], +}) + +// customers[0].account_holder_link?.[0]?.account_holder +``` + +### Manage with Link + +To manage the account holders of a customer, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.CUSTOMER]: { + customer_id: "cus_123", + }, + [Modules.PAYMENT]: { + account_holder_id: "acchld_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.CUSTOMER]: { + customer_id: "cus_123", + }, + [Modules.PAYMENT]: { + account_holder_id: "acchld_123", + }, +}) +``` + +*** + +## Cart Module + +Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `Customer` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the customer of a cart, and not the other way around. + +### Retrieve with Query + +To retrieve the customer of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: + +### query.graph + +```ts +const { data: carts } = await query.graph({ + entity: "cart", + fields: [ + "customer.*", + ], +}) + +// carts.customer +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: carts } = useQueryGraphStep({ + entity: "cart", + fields: [ + "customer.*", + ], +}) + +// carts.customer +``` + +*** + +## Order Module + +Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `Customer` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the customer of an order, and not the other way around. + +### Retrieve with Query + +To retrieve the customer of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "customer.*", + ], +}) + +// orders.customer +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "customer.*", + ], +}) + +// orders.customer +``` + + +# Fulfillment Concepts + +In this document, you’ll learn about some basic fulfillment concepts. + +## Fulfillment Set + +A fulfillment set is a general form or way of fulfillment. For example, shipping is a form of fulfillment, and pick-up is another form of fulfillment. Each of these can be created as fulfillment sets. + +A fulfillment set is represented by the [FulfillmentSet data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentSet/index.html.md). All other configurations, options, and management features are related to a fulfillment set, in one way or another. + +```ts +const fulfillmentSets = await fulfillmentModuleService.createFulfillmentSets( + [ + { + name: "Shipping", + type: "shipping", + }, + { + name: "Pick-up", + type: "pick-up", + }, + ] +) +``` + +*** + +## Service Zone + +A service zone is a collection of geographical zones or areas. It’s used to restrict available shipping options to a defined set of locations. + +A service zone is represented by the [ServiceZone data model](https://docs.medusajs.com/references/fulfillment/models/ServiceZone/index.html.md). It’s associated with a fulfillment set, as each service zone is specific to a form of fulfillment. For example, if a customer chooses to pick up items, you can restrict the available shipping options based on their location. + +![A diagram showcasing the relation between fulfillment sets, service zones, and geo zones](https://res.cloudinary.com/dza7lstvk/image/upload/v1712329770/Medusa%20Resources/service-zone_awmvfs.jpg) + +A service zone can have multiple geographical zones, each represented by the [GeoZone data model](https://docs.medusajs.com/references/fulfillment/models/GeoZone/index.html.md). It holds location-related details to narrow down supported areas, such as country, city, or province code. + +The province code is always in lower-case and in [ISO 3166-2 format](https://en.wikipedia.org/wiki/ISO_3166-2). + +*** + +## Shipping Profile + +A shipping profile defines a type of items that are shipped in a similar manner. For example, a `default` shipping profile is used for all item types, but the `digital` shipping profile is used for digital items that aren’t shipped and delivered conventionally. + +A shipping profile is represented by the [ShippingProfile data model](https://docs.medusajs.com/references/fulfillment/models/ShippingProfile/index.html.md). It only defines the profile’s details, but it’s associated with the shipping options available for the item type. + + +# Fulfillment Module Provider + +In this guide, you’ll learn about the Fulfillment Module Provider and how it's used. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/locations-and-shipping/locations#manage-fulfillment-providers/index.html.md) to learn how to add a fulfillment provider to a location using the dashboard. + +## What is a Fulfillment Module Provider? + +A Fulfillment Module Provider handles fulfilling items, typically using a third-party integration. + +Fulfillment Module Providers registered in the Fulfillment Module's [options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/module-options/index.html.md) are stored and represented by the [FulfillmentProvider data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentProvider/index.html.md). + +![Diagram showcasing the communication between Medusa, the Fulfillment Module Provider, and the third-party fulfillment provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746794800/Medusa%20Resources/fulfillment-provider-service_ljsqpq.jpg) + +*** + +## Default Fulfillment Provider + +Medusa provides a Manual Fulfillment Provider that acts as a placeholder fulfillment provider. It doesn't process fulfillment and delegates that to the merchant. + +This provider is installed by default in your application and you can use it to fulfill items manually. + +The identifier of the manual fulfillment provider is `fp_manual_manual`. + +*** + +## How to Create a Custom Fulfillment Provider? + +A Fulfillment Module Provider is a module whose service implements the `IFulfillmentProvider` imported from `@medusajs/framework/types`. + +The module can have multiple fulfillment provider services, where each are registered as separate fulfillment providers. + +Refer to the [Create Fulfillment Module Provider](https://docs.medusajs.com/references/fulfillment/provider/index.html.md) guide to learn how to create a Fulfillment Module Provider. + +{/* TODO add link to user guide */} + +After you create a fulfillment provider, you can choose it as the default Fulfillment Module Provider for a stock location in the Medusa Admin dashboard. + +*** + +## How are Fulfillment Providers Registered? + +### Configure Fulfillment Module's Providers + +The Fulfillment Module accepts a `providers` option that allows you to configure the providers registered in your application. + +Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/module-options/index.html.md) guide. + +### Registration on Application Start + +When the Medusa application starts, it registers the Fulfillment Module Providers defined in the `providers` option of the Fulfillment Module. + +For each Fulfillment Module Provider, the Medusa application finds all fulfillment provider services defined in them to register. + +### FulfillmentProvider Data Model + +A registered fulfillment provider is represented by the [FulfillmentProvider data model](https://docs.medusajs.com/references/fulfillment/models/FulfillmentProvider/index.html.md) in the Medusa application. + +This data model is used to reference a service in the Fulfillment Module Provider and determine whether it's installed in the application. + +![Diagram showcasing the FulfillmentProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746794803/Medusa%20Resources/fulfillment-provider-model_wo2ato.jpg) + +The `FulfillmentProvider` data model has the following properties: + +- `id`: The unique identifier of the fulfillment provider. The ID's format is `fp_{identifier}_{id}`, where: + - `identifier` is the value of the `identifier` property in the Fulfillment Module Provider's service. + - `id` is the value of the `id` property of the Fulfillment Module Provider in `medusa-config.ts`. +- `is_enabled`: A boolean indicating whether the fulfillment provider is enabled. + +### How to Remove a Fulfillment Provider? + +You can remove a registered fulfillment provider from the Medusa application by removing it from the `providers` option in the Fulfillment Module's configuration. + +Then, the next time the Medusa application starts, it will set the `is_enabled` property of the `FulfillmentProvider`'s record to `false`. This allows you to re-enable the fulfillment provider later if needed by adding it back to the `providers` option. + + +# Links between Fulfillment Module and Other Modules + +This document showcases the module links defined between the Fulfillment Module and other Commerce Modules. + +## Summary + +The Fulfillment Module has the following links to other modules: + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Order|Fulfillment|Stored - one-to-many|Learn more| +|Return|Fulfillment|Stored - one-to-many|Learn more| +|PriceSet|ShippingOption|Stored - many-to-one|Learn more| +|Product|ShippingProfile|Stored - many-to-one|Learn more| +|StockLocation|FulfillmentProvider|Stored - one-to-many|Learn more| +|StockLocation|FulfillmentSet|Stored - one-to-many|Learn more| + +*** + +## Order Module + +The [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md) provides order-management functionalities. + +Medusa defines a link between the `Fulfillment` and `Order` data models. A fulfillment is created for an orders' items. + +![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716549903/Medusa%20Resources/order-fulfillment_h0vlps.jpg) + +A fulfillment is also created for a return's items. So, Medusa defines a link between the `Fulfillment` and `Return` data models. + +![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399052/Medusa%20Resources/Social_Media_Graphics_2024_Order_Return_vetimk.jpg) + +### Retrieve with Query + +To retrieve the order of a fulfillment with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `order.*` in `fields`: + +To retrieve the return, pass `return.*` in `fields`. + +### query.graph + +```ts +const { data: fulfillments } = await query.graph({ + entity: "fulfillment", + fields: [ + "order.*", + ], +}) + +// fulfillments.order +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: fulfillments } = useQueryGraphStep({ + entity: "fulfillment", + fields: [ + "order.*", + ], +}) + +// fulfillments.order +``` + +### Manage with Link + +To manage the order of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_id: "ful_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_id: "ful_123", + }, +}) +``` + +*** + +## Pricing Module + +The Pricing Module provides features to store, manage, and retrieve the best prices in a specified context. + +Medusa defines a link between the `PriceSet` and `ShippingOption` data models. A shipping option's price is stored as a price set. + +![A diagram showcasing an example of how data models from the Pricing and Fulfillment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716561747/Medusa%20Resources/pricing-fulfillment_spywwa.jpg) + +### Retrieve with Query + +To retrieve the price set of a shipping option with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `price_set.*` in `fields`: + +### query.graph + +```ts +const { data: shippingOptions } = await query.graph({ + entity: "shipping_option", + fields: [ + "price_set_link.*", + ], +}) + +// shippingOptions[0].price_set_link?.price_set_id +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: shippingOptions } = useQueryGraphStep({ + entity: "shipping_option", + fields: [ + "price_set_link.*", + ], +}) + +// shippingOptions[0].price_set_link?.price_set_id +``` + +### Manage with Link + +To manage the price set of a shipping option, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.FULFILLMENT]: { + shipping_option_id: "so_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.FULFILLMENT]: { + shipping_option_id: "so_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +*** + +## Product Module + +Medusa defines a link between the `ShippingProfile` data model and the `Product` data model of the Product Module. Each product must belong to a shipping profile. + +This link is introduced in [Medusa v2.5.0](https://github.com/medusajs/medusa/releases/tag/v2.5.0). + +### Retrieve with Query + +To retrieve the products of a shipping profile with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `products.*` in `fields`: + +### query.graph + +```ts +const { data: shippingProfiles } = await query.graph({ + entity: "shipping_profile", + fields: [ + "products.*", + ], +}) + +// shippingProfiles[0].products +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: shippingProfiles } = useQueryGraphStep({ + entity: "shipping_profile", + fields: [ + "products.*", + ], +}) + +// shippingProfiles[0].products +``` + +### Manage with Link + +To manage the shipping profile of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.FULFILLMENT]: { + shipping_profile_id: "sp_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.FULFILLMENT]: { + shipping_profile_id: "sp_123", + }, +}) +``` + +*** + +## Stock Location Module + +The Stock Location Module provides features to manage stock locations in a store. + +Medusa defines a link between the `FulfillmentSet` and `StockLocation` data models. A fulfillment set can be conditioned to a specific stock location. + +![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1712567101/Medusa%20Resources/fulfillment-stock-location_nlkf7e.jpg) + +Medusa also defines a link between the `FulfillmentProvider` and `StockLocation` data models to indicate the providers that can be used in a location. + +![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399492/Medusa%20Resources/fulfillment-provider-stock-location_b0mulo.jpg) + +### Retrieve with Query + +To retrieve the stock location of a fulfillment set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `location.*` in `fields`: + +To retrieve the stock location of a fulfillment provider, pass `locations.*` in `fields`. + +### query.graph + +```ts +const { data: fulfillmentSets } = await query.graph({ + entity: "fulfillment_set", + fields: [ + "location.*", + ], +}) + +// fulfillmentSets[0].location +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: fulfillmentSets } = useQueryGraphStep({ + entity: "fulfillment_set", + fields: [ + "location.*", + ], +}) + +// fulfillmentSets[0].location ``` ### Manage with Link @@ -29074,11 +23637,768 @@ createRemoteLinkStep({ }) ``` + +# Item Fulfillment + +In this document, you’ll learn about the concepts of item fulfillment. + +## Fulfillment Data Model + +A fulfillment is the shipping and delivery of one or more items to the customer. It’s represented by the [Fulfillment data model](https://docs.medusajs.com/references/fulfillment/models/Fulfillment/index.html.md). + *** -## Inventory Module +## Fulfillment Processing by a Fulfillment Provider -Medusa defines a read-only link between the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md)'s `InventoryLevel` data model and the `StockLocation` data model. Because the link is read-only from the `InventoryLevel`'s side, you can only retrieve the stock location of an inventory level, and not the other way around. +A fulfillment is associated with a fulfillment provider that handles all its processing, such as creating a shipment for the fulfillment’s items. + +The fulfillment is also associated with a shipping option of that provider, which determines how the item is shipped. + +![A diagram showcasing the relation between a fulfillment, fulfillment provider, and shipping option](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331947/Medusa%20Resources/fulfillment-shipping-option_jk9ndp.jpg) + +*** + +## data Property + +The `Fulfillment` data model has a `data` property that holds any necessary data for the third-party fulfillment provider to process the fulfillment. + +For example, the `data` property can hold the ID of the fulfillment in the third-party provider. The associated fulfillment provider then uses it whenever it retrieves the fulfillment’s details. + +*** + +## Fulfillment Items + +A fulfillment is used to fulfill one or more items. Each item is represented by the `FulfillmentItem` data model. + +The fulfillment item holds details relevant to fulfilling the item, such as barcode, SKU, and quantity to fulfill. + +![A diagram showcasing the relation between fulfillment and fulfillment items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712332114/Medusa%20Resources/fulfillment-item_etzxb0.jpg) + +*** + +## Fulfillment Label + +Once a shipment is created for the fulfillment, you can store its tracking number, URL, or other related details as a label, represented by the `FulfillmentLabel` data model. + +*** + +## Fulfillment Status + +The `Fulfillment` data model has three properties to keep track of the current status of the fulfillment: + +- `packed_at`: The date the fulfillment was packed. If set, then the fulfillment has been packed. +- `shipped_at`: The date the fulfillment was shipped. If set, then the fulfillment has been shipped. +- `delivered_at`: The date the fulfillment was delivered. If set, then the fulfillment has been delivered. + + +# Fulfillment Module Options + +In this document, you'll learn about the options of the Fulfillment Module. + +## providers + +The `providers` option is an array of fulfillment module providers. + +When the Medusa application starts, these providers are registered and can be used to process fulfillments. + +For example: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/fulfillment", + options: { + providers: [ + { + resolve: `@medusajs/medusa/fulfillment-manual`, + id: "manual", + options: { + // provider options... + }, + }, + ], + }, + }, + ], +}) +``` + +The `providers` option is an array of objects that accept the following properties: + +- `resolve`: A string indicating either the package name of the module provider or the path to it relative to the `src` directory. +- `id`: A string indicating the provider's unique name or ID. +- `options`: An optional object of the module provider's options. + + +# Shipping Option + +In this document, you’ll learn about shipping options and their rules. + +## What’s a Shipping Option? + +A shipping option is a way of shipping an item. Each fulfillment provider provides a set of shipping options. For example, a provider may provide a shipping option for express shipping and another for standard shipping. + +When the customer places their order, they choose a shipping option to be used to fulfill their items. + +A shipping option is represented by the [ShippingOption data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOption/index.html.md). + +*** + +## Service Zone Restrictions + +A shipping option is restricted by a service zone, limiting the locations a shipping option be used in. + +For example, a fulfillment provider may have a shipping option that can be used in the United States, and another in Canada. + +![A diagram showcasing the relation between shipping options and service zones.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712330831/Medusa%20Resources/shipping-option-service-zone_pobh6k.jpg) + +Service zones can be more restrictive, such as restricting to certain cities or province codes. + +The province code is always in lower-case and in [ISO 3166-2 format](https://en.wikipedia.org/wiki/ISO_3166-2). + +![A diagram showcasing the relation between shipping options, service zones, and geo zones](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331186/Medusa%20Resources/shipping-option-service-zone-city_m5sxod.jpg) + +*** + +## Shipping Option Rules + +You can restrict shipping options by custom rules, such as the item’s weight or the customer’s group. + +You can also restrict a shipping option's price based on specific conditions. For example, you can make a shipping option's price free based on the cart's total. Learn more in the Pricing Module's [Price Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-rules#how-to-set-rules-on-a-price/index.html.md) guide. + +These rules are represented by the [ShippingOptionRule data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOptionRule/index.html.md). Its properties define the custom rule: + +- `attribute`: The name of a property or table that the rule applies to. For example, `customer_group`. +- `operator`: The operator used in the condition. For example: + - To allow multiple values, use the operator `in`, which validates that the provided values are in the rule’s values. + - To create a negation condition that considers `value` against the rule, use `nin`, which validates that the provided values aren’t in the rule’s values. + - Check out more operators in [this reference](https://docs.medusajs.com/references/fulfillment/types/fulfillment.RuleOperatorType/index.html.md). +- `value`: One or more values. + +![A diagram showcasing the relation between shipping option and shipping option rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331340/Medusa%20Resources/shipping-option-rule_oosopf.jpg) + +A shipping option can have multiple rules. For example, you can add rules to a shipping option so that it's available if the customer belongs to the VIP group and the total weight is less than 2000g. + +![A diagram showcasing how a shipping option can have multiple rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712331462/Medusa%20Resources/shipping-option-rule-2_ylaqdb.jpg) + +*** + +## Shipping Profile and Types + +A shipping option belongs to a type. For example, a shipping option’s type may be `express`, while another `standard`. The type is represented by the [ShippingOptionType data model](https://docs.medusajs.com/references/fulfillment/models/ShippingOptionType/index.html.md). + +A shipping option also belongs to a shipping profile, as each shipping profile defines the type of items to be shipped in a similar manner. + +*** + +## data Property + +When fulfilling an item, you might use a third-party fulfillment provider that requires additional custom data to be passed along from the checkout or order-creation process. + +The `ShippingOption` data model has a `data` property. It's an object that stores custom data relevant later when creating and processing a fulfillment. + + +# Links between Currency Module and Other Modules + +This document showcases the module links defined between the Currency Module and other Commerce Modules. + +## Summary + +The Currency Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|StoreCurrency|Currency|Read-only - has one|Learn more| + +*** + +## Store Module + +The Store Module has a `Currency` data model that stores the supported currencies of a store. However, these currencies don't hold all the details of a currency, such as its name or symbol. + +Instead, Medusa defines a read-only link between the [Store Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/store/index.html.md)'s `StoreCurrency` data model and the Currency Module's `Currency` data model. Because the link is read-only from the `Store`'s side, you can only retrieve the details of a store's supported currencies, and not the other way around. + +### Retrieve with Query + +To retrieve the details of a store's currencies with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `supported_currencies.currency.*` in `fields`: + +### query.graph + +```ts +const { data: stores } = await query.graph({ + entity: "store", + fields: [ + "supported_currencies.currency.*", + ], +}) + +// stores[0].supported_currencies[0].currency +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: stores } = useQueryGraphStep({ + entity: "store", + fields: [ + "supported_currencies.currency.*", + ], +}) + +// stores[0].supported_currencies[0].currency +``` + + +# Inventory Concepts + +In this document, you’ll learn about the main concepts in the Inventory Module, and how data is stored and related. + +## InventoryItem + +An inventory item, represented by the [InventoryItem data model](https://docs.medusajs.com/references/inventory-next/models/InventoryItem/index.html.md), is a stock-kept item, such as a product, whose inventory can be managed. + +The `InventoryItem` data model mainly holds details related to the underlying stock item, but has relations to other data models that include its inventory details. + +![A diagram showcasing the relation between data models in the Inventory Module](https://res.cloudinary.com/dza7lstvk/image/upload/v1709658103/Medusa%20Resources/inventory-architecture_kxr2ql.png) + +### Inventory Shipping Requirement + +An inventory item has a `requires_shipping` field (enabled by default) that indicates whether the item requires shipping. For example, if you're selling a digital license that has limited stock quantity but doesn't require shipping. + +When a product variant is purchased in the Medusa application, this field is used to determine whether the item requires shipping. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/selling-products/index.html.md). + +*** + +## InventoryLevel + +An inventory level, represented by the [InventoryLevel data model](https://docs.medusajs.com/references/inventory-next/models/InventoryLevel/index.html.md), holds the inventory and quantity details of an inventory item in a specific location. + +It has three quantity-related properties: + +- `stocked_quantity`: The available stock quantity of an item in the associated location. +- `reserved_quantity`: The quantity reserved from the available `stocked_quantity`. It indicates the quantity that's still not removed from stock, but considered as unavailable when checking whether an item is in stock. +- `incoming_quantity`: The incoming stock quantity of an item into the associated location. This property doesn't play into the `stocked_quantity` or when checking whether an item is in stock. + +### Associated Location + +The inventory level's location is determined by the `location_id` property. Medusa links the `InventoryLevel` data model with the `StockLocation` data model from the Stock Location Module. + +*** + +## ReservationItem + +A reservation item, represented by the [ReservationItem](https://docs.medusajs.com/references/inventory-next/models/ReservationItem/index.html.md) data model, represents unavailable quantity of an inventory item in a location. It's used when an order is placed but not fulfilled yet. + +The reserved quantity is associated with a location, so it has a similar relation to that of the `InventoryLevel` with the Stock Location Module. + + +# Inventory Kits + +In this guide, you'll learn how inventory kits can be used in the Medusa application to support use cases like multi-part products, bundled products, and shared inventory across products. + +Refer to the following user guides to learn how to use the Medusa Admin dashboard to: + +- [Create Multi-Part Products](https://docs.medusajs.com/user-guide/products/create/multi-part/index.html.md). +- [Create Bundled Products](https://docs.medusajs.com/user-guide/products/create/bundle/index.html.md). + +## What is an Inventory Kit? + +An inventory kit is a collection of inventory items that are linked to a single product variant. These inventory items can be used to represent different parts of a product, or to represent a bundle of products. + +The Medusa application links inventory items from the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) to product variants in the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md). Each variant can have multiple inventory items, and these inventory items can be re-used or shared across variants. + +Using inventory kits, you can implement use cases like: + +- [Multi-part products](#multi-part-products): A product that consists of multiple parts, each with its own inventory item. +- [Bundled products](#bundled-products): A product that is sold as a bundle, where each variant in the bundle product can re-use the inventory items of another product that should be sold as part of the bundle. + +*** + +## Multi-Part Products + +Consider your store sells bicycles that consist of a frame, wheels, and seats, and you want to manage the inventory of these parts separately. + +To implement this in Medusa, you can: + +- Create inventory items for each of the different parts. +- For each bicycle product, add a variant whose inventory kit consists of the inventory items of each of the parts. + +Then, whenever a customer purchases a bicycle, the inventory of each part is updated accordingly. You can also use the `required_quantity` of the variant's inventory items to set how much quantity is consumed of the part's inventory when a bicycle is sold. For example, the bicycle's wheels require 2 wheels inventory items to be sold when a bicycle is sold. + +![Diagram showcasing how a variant is linked to multi-part inventory items](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414257/Medusa%20Resources/multi-part-product_kepbnx.jpg) + +### Create Multi-Part Product + +Using the [Medusa Admin](https://docs.medusajs.com/user-guide/products/create/multi-part/index.html.md), you can create a multi-part product by creating its inventory items first, then assigning these inventory items to the product's variant(s). + +Using [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), you can implement this by first creating the inventory items: + +```ts highlights={multiPartsHighlights1} +import { + createInventoryItemsWorkflow, + useQueryGraphStep, +} from "@medusajs/medusa/core-flows" +import { createWorkflow } from "@medusajs/framework/workflows-sdk" + +export const createMultiPartProductsWorkflow = createWorkflow( + "create-multi-part-products", + () => { + // Alternatively, you can create a stock location + const { data: stockLocations } = useQueryGraphStep({ + entity: "stock_location", + fields: ["*"], + filters: { + name: "European Warehouse", + }, + }) + + const inventoryItems = createInventoryItemsWorkflow.runAsStep({ + input: { + items: [ + { + sku: "FRAME", + title: "Frame", + location_levels: [ + { + stocked_quantity: 100, + location_id: stockLocations[0].id, + }, + ], + }, + { + sku: "WHEEL", + title: "Wheel", + location_levels: [ + { + stocked_quantity: 100, + location_id: stockLocations[0].id, + }, + ], + }, + { + sku: "SEAT", + title: "Seat", + location_levels: [ + { + stocked_quantity: 100, + location_id: stockLocations[0].id, + }, + ], + }, + ], + }, + }) + + // TODO create the product + } +) +``` + +You start by retrieving the stock location to create the inventory items in. Alternatively, you can [create a stock location](https://docs.medusajs.com/references/medusa-workflows/createStockLocationsWorkflow/index.html.md). + +Then, you create the inventory items that the product variant consists of. + +Next, create the product and pass the inventory item's IDs to the product's variant: + +```ts highlights={multiPartHighlights2} +import { + // ... + transform, +} from "@medusajs/framework/workflows-sdk" +import { + // ... + createProductsWorkflow, +} from "@medusajs/medusa/core-flows" + +export const createMultiPartProductsWorkflow = createWorkflow( + "create-multi-part-products", + () => { + // ... + + const inventoryItemIds = transform({ + inventoryItems, + }, (data) => { + return data.inventoryItems.map((inventoryItem) => { + return { + inventory_item_id: inventoryItem.id, + // can also specify required_quantity + } + }) + }) + + const products = createProductsWorkflow.runAsStep({ + input: { + products: [ + { + title: "Bicycle", + variants: [ + { + title: "Bicycle - Small", + prices: [ + { + amount: 100, + currency_code: "usd", + }, + ], + options: { + "Default Option": "Default Variant", + }, + inventory_items: inventoryItemIds, + }, + ], + options: [ + { + title: "Default Option", + values: ["Default Variant"], + }, + ], + shipping_profile_id: "sp_123", + }, + ], + }, + }) + } +) +``` + +You prepare the inventory item IDs to pass to the variant using [transform](https://docs.medusajs.com/docs/learn/fundamentals/workflows/variable-manipulation/index.html.md) from the Workflows SDK, then pass these IDs to the created product's variant. + +You can now [execute the workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows#3-execute-the-workflow/index.html.md) in [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md), [scheduled jobs](https://docs.medusajs.com/docs/learn/fundamentals/scheduled-jobs/index.html.md), or [subscribers](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md). + +*** + +## Bundled Products + +While inventory kits support bundled products, some features like custom pricing for a bundle or separate fulfillment for a bundle's items are not supported. To support those features, follow the [Bundled Products](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/recipes/bundled-products/examples/standard/index.html.md) tutorial to learn how to customize the Medusa application to add bundled products. + +Consider you have three products: shirt, pants, and shoes. You sell those products separately, but you also want to offer them as a bundle. + +![Diagram showcasing products each having their own variants and inventory](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414787/Medusa%20Resources/bundled-product-1_vmzewk.jpg) + +You can do that by creating a product, where each variant re-uses the inventory items of each of the shirt, pants, and shoes products. + +Then, when the bundled product's variant is purchased, the inventory quantity of the associated inventory items are updated. + +![Diagram showcasing a bundled product using the same inventory as the products part of the bundle](https://res.cloudinary.com/dza7lstvk/image/upload/v1736414780/Medusa%20Resources/bundled-product_x94ca1.jpg) + +### Create Bundled Product + +You can create a bundled product in the [Medusa Admin](https://docs.medusajs.com/user-guide/products/create/bundle/index.html.md) by creating the products part of the bundle first, each having its own inventory items. Then, you create the bundled product whose variant(s) have inventory kits composed of inventory items from each of the products part of the bundle. + +Using [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md), you can implement this by first creating the products part of the bundle: + +```ts highlights={bundledHighlights1} +import { + createWorkflow, +} from "@medusajs/framework/workflows-sdk" +import { + createProductsWorkflow, +} from "@medusajs/medusa/core-flows" + +export const createBundledProducts = createWorkflow( + "create-bundled-products", + () => { + const products = createProductsWorkflow.runAsStep({ + input: { + products: [ + { + title: "Shirt", + shipping_profile_id: "sp_123", + variants: [ + { + title: "Shirt", + prices: [ + { + amount: 10, + currency_code: "usd", + }, + ], + options: { + "Default Option": "Default Variant", + }, + manage_inventory: true, + }, + ], + options: [ + { + title: "Default Option", + values: ["Default Variant"], + }, + ], + }, + { + title: "Pants", + shipping_profile_id: "sp_123", + variants: [ + { + title: "Pants", + prices: [ + { + amount: 10, + currency_code: "usd", + }, + ], + options: { + "Default Option": "Default Variant", + }, + manage_inventory: true, + }, + ], + options: [ + { + title: "Default Option", + values: ["Default Variant"], + }, + ], + }, + { + title: "Shoes", + shipping_profile_id: "sp_123", + variants: [ + { + title: "Shoes", + prices: [ + { + amount: 10, + currency_code: "usd", + }, + ], + options: { + "Default Option": "Default Variant", + }, + manage_inventory: true, + }, + ], + options: [ + { + title: "Default Option", + values: ["Default Variant"], + }, + ], + }, + ], + }, + }) + + // TODO re-retrieve with inventory + } +) +``` + +You create three products and enable `manage_inventory` for their variants, which will create a default inventory item. You can also create the inventory item first for more control over the quantity as explained in [the previous section](#create-multi-part-product). + +Next, retrieve the products again but with variant information: + +```ts highlights={bundledHighlights2} +import { + // ... + transform, +} from "@medusajs/framework/workflows-sdk" +import { + useQueryGraphStep, +} from "@medusajs/medusa/core-flows" + +export const createBundledProducts = createWorkflow( + "create-bundled-products", + () => { + // ... + const productIds = transform({ + products, + }, (data) => data.products.map((product) => product.id)) + + // @ts-ignore + const { data: productsWithInventory } = useQueryGraphStep({ + entity: "product", + fields: [ + "variants.*", + "variants.inventory_items.*", + ], + filters: { + id: productIds, + }, + }) + + const inventoryItemIds = transform({ + productsWithInventory, + }, (data) => { + return data.productsWithInventory.map((product) => { + return { + inventory_item_id: product.variants[0].inventory_items?.[0]?.inventory_item_id, + } + }) + }) + + // create bundled product + } +) +``` + +Using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), you retrieve the product again with the inventory items of each variant. Then, you prepare the inventory items to pass to the bundled product's variant. + +Finally, create the bundled product: + +```ts highlights={bundledProductHighlights3} +export const createBundledProducts = createWorkflow( + "create-bundled-products", + () => { + // ... + const bundledProduct = createProductsWorkflow.runAsStep({ + input: { + products: [ + { + title: "Bundled Clothes", + shipping_profile_id: "sp_123", + variants: [ + { + title: "Bundle", + prices: [ + { + amount: 30, + currency_code: "usd", + }, + ], + options: { + "Default Option": "Default Variant", + }, + inventory_items: inventoryItemIds, + }, + ], + options: [ + { + title: "Default Option", + values: ["Default Variant"], + }, + ], + }, + ], + }, + }).config({ name: "create-bundled-product" }) + } +) +``` + +The bundled product has the same inventory items as those of the products part of the bundle. + +You can now [execute the workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows#3-execute-the-workflow/index.html.md) in [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md), [scheduled jobs](https://docs.medusajs.com/docs/learn/fundamentals/scheduled-jobs/index.html.md), or [subscribers](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md). + + +# Links between Inventory Module and Other Modules + +This document showcases the module links defined between the Inventory Module and other Commerce Modules. + +## Summary + +The Inventory Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|ProductVariant|InventoryItem|Stored - many-to-many|Learn more| +|InventoryLevel|StockLocation|Read-only - has many|Learn more| + +*** + +## Product Module + +Each product variant has different inventory details. Medusa defines a link between the `ProductVariant` and `InventoryItem` data models. + +![A diagram showcasing an example of how data models from the Inventory and Product Module are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709658720/Medusa%20Resources/inventory-product_ejnray.jpg) + +A product variant whose `manage_inventory` property is enabled has an associated inventory item. Through that inventory's items relations in the Inventory Module, you can manage and check the variant's inventory quantity. + +Learn more about product variant's inventory management in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). + +### Retrieve with Query + +To retrieve the product variants of an inventory item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variants.*` in `fields`: + +### query.graph + +```ts +const { data: inventoryItems } = await query.graph({ + entity: "inventory_item", + fields: [ + "variants.*", + ], +}) + +// inventoryItems[0].variants +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: inventoryItems } = useQueryGraphStep({ + entity: "inventory_item", + fields: [ + "variants.*", + ], +}) + +// inventoryItems[0].variants +``` + +### Manage with Link + +To manage the variants of an inventory item, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.INVENTORY]: { + inventory_item_id: "iitem_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.INVENTORY]: { + inventory_item_id: "iitem_123", + }, +}) +``` + +*** + +## Stock Location Module + +Medusa defines a read-only link between the `InventoryLevel` data model and the [Stock Location Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md)'s `StockLocation` data model. This means you can retrieve the details of an inventory level's stock locations, but you don't manage the links in a pivot table in the database. The stock location of an inventory level is determined by the `location_id` property of the `InventoryLevel` data model. ### Retrieve with Query @@ -29114,521 +24434,66 @@ const { data: inventoryLevels } = useQueryGraphStep({ // inventoryLevels[0].stock_locations ``` -*** -## Sales Channel Module +# Inventory Module in Medusa Flows -A stock location is associated with a sales channel. This scopes inventory quantities in a stock location by the associated sales channel. +This document explains how the Inventory Module is used within the Medusa application's flows. -Medusa defines a link between the `SalesChannel` and `StockLocation` data models. +## Product Variant Creation -![A diagram showcasing an example of how resources from the Sales Channel and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716796872/Medusa%20Resources/sales-channel-location_cqrih1.jpg) +When a product variant is created and its `manage_inventory` property's value is `true`, the Medusa application creates an inventory item associated with that product variant. -### Retrieve with Query +This flow is implemented within the [createProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductVariantsWorkflow/index.html.md) -To retrieve the sales channels of a stock location with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: - -### query.graph - -```ts -const { data: stockLocations } = await query.graph({ - entity: "stock_location", - fields: [ - "sales_channels.*", - ], -}) - -// stockLocations[0].sales_channels -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: stockLocations } = useQueryGraphStep({ - entity: "stock_location", - fields: [ - "sales_channels.*", - ], -}) - -// stockLocations[0].sales_channels -``` - -### Manage with Link - -To manage the stock locations of a sales channel, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): - -### link.create - -```ts -import { Modules } from "@medusajs/framework/utils" - -// ... - -await link.create({ - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, - [Modules.STOCK_LOCATION]: { - sales_channel_id: "sloc_123", - }, -}) -``` - -### createRemoteLinkStep - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" - -// ... - -createRemoteLinkStep({ - [Modules.SALES_CHANNEL]: { - sales_channel_id: "sc_123", - }, - [Modules.STOCK_LOCATION]: { - sales_channel_id: "sloc_123", - }, -}) -``` - - -# Links between Store Module and Other Modules - -This document showcases the module links defined between the Store Module and other Commerce Modules. - -## Summary - -The Store Module has the following links to other modules: - -Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. - -|First Data Model|Second Data Model|Type|Description| -|---|---|---|---| -|StoreCurrency|Currency|Read-only - has many|Learn more| +![A diagram showcasing how the Inventory Module is used in the product variant creation form](https://res.cloudinary.com/dza7lstvk/image/upload/v1709661511/Medusa%20Resources/inventory-product-create_khz2hk.jpg) *** -## Currency Module +## Add to Cart -The Store Module has a `Currency` data model that stores the supported currencies of a store. However, these currencies don't hold all the details of a currency, such as its name or symbol. +When a product variant with `manage_inventory` set to `true` is added to cart, the Medusa application checks whether there's sufficient stocked quantity. If not, an error is thrown and the product variant won't be added to the cart. -Instead, Medusa defines a read-only link between the [Currency Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/currency/index.html.md)'s `Currency` data model and the Store Module's `StoreCurrency` data model. This means you can retrieve the details of a store's supported currencies, but you don't manage the links in a pivot table in the database. The currencies of a store are determined by the `currency_code` of the [Currency](https://docs.medusajs.com/references/store/models/Currency/index.html.md) data model in the Store Module (not in the Currency Module). +This flow is implemented within the [addToCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/addToCartWorkflow/index.html.md) -### Retrieve with Query - -To retrieve the details of a store's currencies with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `supported_currencies.currency.*` in `fields`: - -### query.graph - -```ts -const { data: stores } = await query.graph({ - entity: "store", - fields: [ - "supported_currencies.currency.*", - ], -}) - -// stores[0].supported_currencies -``` - -### useQueryGraphStep - -```ts -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -// ... - -const { data: stores } = useQueryGraphStep({ - entity: "store", - fields: [ - "supported_currencies.currency.*", - ], -}) - -// stores[0].supported_currencies -``` - - -# Tax Module Options - -In this guide, you'll learn about the options of the Tax Module. - -## providers - -The `providers` option is an array of either [tax module providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) or path to a file that defines a tax provider. - -When the Medusa application starts, these providers are registered and can be used to retrieve tax lines. - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/tax", - options: { - providers: [ - { - resolve: "./path/to/my-provider", - id: "my-provider", - options: { - // ... - }, - }, - ], - }, - }, - ], -}) -``` - -The objects in the array accept the following properties: - -- `resolve`: A string indicating the package name of the module provider or the path to it. -- `id`: A string indicating the provider's unique name or ID. -- `options`: An optional object of the module provider's options. - - -# Tax Module Provider - -In this guide, you’ll learn about the Tax Module Provider and how it's used. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md) to learn how to manage tax provider of a tax region using the dashboard. - -## What is a Tax Module Provider? - -The Tax Module Provider handles tax line calculations in the Medusa application. It integrates third-party tax services, such as TaxJar, or implements custom tax calculation logic. - -The Medusa application uses the Tax Module Provider whenever it needs to calculate tax lines for a cart or order, or when you [calculate the tax lines using the Tax Module's service](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-calculation-with-provider/index.html.md). - -![Diagram showcasing the communication between Medusa the Tax Module Provider, and the third-party tax provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746790996/Medusa%20Resources/tax-provider-service_kcgpne.jpg) +![A diagram showcasing how the Inventory Module is used in the add to cart flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709711645/Medusa%20Resources/inventory-cart-flow_achwq9.jpg) *** -## Default Tax Provider +## Order Placed -The Tax Module provides a `system` tax provider that acts as a placeholder tax provider. It performs basic tax calculation, as you can see in the [Create Tax Module Provider](https://docs.medusajs.com/references/tax/provider#gettaxlines/index.html.md) guide. +When an order is placed, the Medusa application creates a reservation item for each product variant with `manage_inventory` set to `true`. -This provider is installed by default in your application and you can use it with tax regions. +This flow is implemented within the [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) -The identifier of the system tax provider is `tp_system`. +![A diagram showcasing how the Inventory Module is used in the order placed flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712005/Medusa%20Resources/inventory-order-placed_qdxqdn.jpg) *** -## How to Create a Custom Tax Provider? +## Order Fulfillment -A Tax Module Provider is a module whose service implements the `ITaxProvider` imported from `@medusajs/framework/types`. +When an item in an order is fulfilled and the associated variant has its `manage_inventory` property set to `true`, the Medusa application: -The module can have multiple tax provider services, where each are registered as separate tax providers. +- Subtracts the `reserved_quantity` from the `stocked_quantity` in the inventory level associated with the variant's inventory item. +- Resets the `reserved_quantity` to `0`. +- Deletes the associated reservation item. -Refer to the [Create Tax Module Provider](https://docs.medusajs.com/references/tax/provider/index.html.md) guide to learn how to create a Tax Module Provider. +This flow is implemented within the [createOrderFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderFulfillmentWorkflow/index.html.md) -After you create a tax provider, you can choose it as the default Tax Module Provider for a region in the [Medusa Admin dashboard](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md). +![A diagram showcasing how the Inventory Module is used in the order fulfillment flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712390/Medusa%20Resources/inventory-order-fulfillment_o9wdxh.jpg) *** -## How are Tax Providers Registered? +## Order Return -### Configure Tax Module's Providers +When an item in an order is returned and the associated variant has its `manage_inventory` property set to `true`, the Medusa application increments the `stocked_quantity` of the inventory item's level with the returned quantity. -The Tax Module accepts a `providers` option that allows you to configure the providers registered in your application. +This flow is implemented within the [confirmReturnReceiveWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmReturnReceiveWorkflow/index.html.md) -Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/module-options/index.html.md) guide. +![A diagram showcasing how the Inventory Module is used in the order return flow](https://res.cloudinary.com/dza7lstvk/image/upload/v1709712457/Medusa%20Resources/inventory-order-return_ihftyk.jpg) -### Registration on Application Start +### Dismissed Returned Items -When the Medusa application starts, it registers the Tax Module Providers defined in the `providers` option of the Tax Module. - -For each Tax Module Provider, the Medusa application finds all tax provider services defined in them to register. - -### TaxProvider Data Model - -A registered tax provider is represented by the [TaxProvider data model](https://docs.medusajs.com/references/tax/models/TaxProvider/index.html.md) in the Medusa application. - -This data model is used to reference a service in the Tax Module Provider and determine whether it's installed in the application. - -![Diagram showcasing the TaxProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791254/Medusa%20Resources/tax-provider-model_r6ktjw.jpg) - -The `TaxProvider` data model has the following properties: - -- `id`: The unique identifier of the tax provider. The ID's format is `tp_{identifier}_{id}`, where: - - `identifier` is the value of the `identifier` property in the Tax Module Provider's service. - - `id` is the value of the `id` property of the Tax Module Provider in `medusa-config.ts`. -- `is_enabled`: A boolean indicating whether the tax provider is enabled. - -### How to Remove a Tax Provider? - -You can remove a registered tax provider from the Medusa application by removing it from the `providers` option in the Tax Module's configuration. - -Then, the next time the Medusa application starts, it will set the `is_enabled` property of the `TaxProvider`'s record to `false`. This allows you to re-enable the tax provider later if needed by adding it back to the `providers` option. - - -# Tax Calculation with the Tax Provider - -In this guide, you’ll learn how tax lines are calculated using the tax provider. - -## Tax Lines Calculation - -Tax lines are calculated and retrieved using the [getTaxLines method of the Tax Module’s main service](https://docs.medusajs.com/references/tax/getTaxLines/index.html.md). It accepts an array of line items and shipping methods, and the context of the calculation. - -For example: - -```ts -const taxLines = await taxModuleService.getTaxLines( - [ - { - id: "cali_123", - product_id: "prod_123", - unit_price: 1000, - quantity: 1, - }, - { - id: "casm_123", - shipping_option_id: "so_123", - unit_price: 2000, - }, - ], - { - address: { - country_code: "us", - }, - } -) -``` - -The context object is used to determine which tax regions and rates to use in the calculation. It includes properties related to the address and customer. - -The example above retrieves the tax lines based on the tax region for the United States. - -The method returns tax lines for the line item and shipping methods. For example: - -```json -[ - { - "line_item_id": "cali_123", - "rate_id": "txr_1", - "rate": 10, - "code": "XXX", - "name": "Tax Rate 1" - }, - { - "shipping_line_id": "casm_123", - "rate_id": "txr_2", - "rate": 5, - "code": "YYY", - "name": "Tax Rate 2" - } -] -``` - -*** - -## Using the Tax Provider in the Calculation - -The tax lines retrieved by the `getTaxLines` method are actually retrieved from the tax region’s [Tax Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md). - -A tax module implements the logic to shape tax lines. Each tax region uses a tax provider. - -Learn more about tax providers, configuring, and creating them in the [Tax Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) guide. - - -# Tax Region - -In this document, you’ll learn about tax regions and how to use them with the Region Module. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md) to learn how to manage tax regions using the dashboard. - -## What is a Tax Region? - -A tax region, represented by the [TaxRegion data model](https://docs.medusajs.com/references/tax/models/TaxRegion/index.html.md), stores tax settings related to a region that your store serves. - -Tax regions can inherit settings and rules from a parent tax region. - -*** - -## Tax Rules in a Tax Region - -Tax rules define the tax rates and behavior within a tax region. They specify: - -- The tax rate percentage. -- Which products the tax applies to. -- Other custom rules to determine tax applicability. - -Learn more about tax rules in the [Tax Rates and Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-rates-and-rules/index.html.md) guide. - -*** - -## Tax Provider - -Each tax region can have a default tax provider. The tax provider is responsible for calculating the tax lines for carts and orders in that region. - -You can use Medusa's default tax provider or create a custom one, allowing you to integrate with third-party tax services or implement your own tax calculation logic. - -Learn more about tax providers in the [Tax Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) guide. - - -# Tax Rates and Rules - -In this document, you’ll learn about tax rates and rules. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions#manage-tax-rate-overrides/index.html.md) to learn how to manage tax rates using the dashboard. - -## What are Tax Rates? - -A tax rate is a percentage amount used to calculate the tax amount for each taxable item’s price, such as line items or shipping methods, in a cart. The sum of all calculated tax amounts are then added to the cart’s total as a tax total. - -Each tax region has a default tax rate. This tax rate is applied to all taxable items of a cart in that region. - -### Combinable Tax Rates - -Tax regions can have parent tax regions. To inherit the tax rates of the parent tax region, set the `is_combinable` of the child’s tax rates to `true`. - -Then, when tax rates are retrieved for a taxable item in the child region, both the child and the parent tax regions’ applicable rates are returned. - -*** - -## Override Tax Rates with Rules - -You can create tax rates that override the default for specific conditions or rules. - -For example, you can have a default tax rate is 10%, but for products of type “Shirt” is %15. - -A tax region can have multiple tax rates, and each tax rate can have multiple tax rules. The [TaxRateRule data model](https://docs.medusajs.com/references/tax/models/TaxRateRule/index.html.md) represents a tax rate’s rule. - -![A diagram showcasing the relation between TaxRegion, TaxRate, and TaxRateRule](https://res.cloudinary.com/dza7lstvk/image/upload/v1711462167/Medusa%20Resources/tax-rate-rule_enzbp2.jpg) - -These two properties of the data model identify the rule’s target: - -- `reference`: the name of the table in the database that this rule points to. For example, `product_type`. -- `reference_id`: the ID of the data model’s record that this points to. For example, a product type’s ID. - -So, to override the default tax rate for product types “Shirt”, you create a tax rate and associate with it a tax rule whose `reference` is `product_type` and `reference_id` the ID of the “Shirt” product type. - - -# User Module Options - -In this document, you'll learn about the options of the User Module. - -## Module Options - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/user", - options: { - jwt_secret: process.env.JWT_SECRET, - }, - }, - ], -}) -``` - -|Option|Description|Required| -|---|---|---|---|---| -|\`jwt\_secret\`|A string indicating the secret used to sign the invite tokens.|Yes| - -### Environment Variables - -Make sure to add the necessary environment variables for the above options in `.env`: - -```bash -JWT_SECRET=supersecret -``` - - -# User Creation Flows - -In this document, learn the different ways to create a user using the User Module. - -Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/users/index.html.md) to learn how to manage users using the dashboard. - -## Straightforward User Creation - -To create a user, use the [create method of the User Module’s main service](https://docs.medusajs.com/references/user/create/index.html.md): - -```ts -const user = await userModuleService.createUsers({ - email: "user@example.com", -}) -``` - -You can pair this with the Auth Module to allow the user to authenticate, as explained in a [later section](#create-identity-with-the-auth-module). - -*** - -## Invite Users - -To create a user, you can create an invite for them using the [createInvites method](https://docs.medusajs.com/references/user/createInvites/index.html.md) of the User Module's main service: - -```ts -const invite = await userModuleService.createInvites({ - email: "user@example.com", -}) -``` - -Later, you can accept the invite and create a new user for them: - -```ts -const invite = - await userModuleService.validateInviteToken("secret_123") - -await userModuleService.updateInvites({ - id: invite.id, - accepted: true, -}) - -const user = await userModuleService.createUsers({ - email: invite.email, -}) -``` - -### Invite Expiry - -An invite has an expiry date. You can renew the expiry date and refresh the token using the [refreshInviteTokens method](https://docs.medusajs.com/references/user/refreshInviteTokens/index.html.md): - -```ts -await userModuleService.refreshInviteTokens(["invite_123"]) -``` - -*** - -## Create Identity with the Auth Module - -By combining the User and Auth Modules, you can use the Auth Module for authenticating users, and the User Module to manage those users. - -So, when a user is authenticated, and you receive the `AuthIdentity` object, you can use it to create a user if it doesn’t exist: - -```ts -const { success, authIdentity } = - await authModuleService.authenticate("emailpass", { - // ... - }) - -const [, count] = await userModuleService.listAndCountUsers({ - email: authIdentity.entity_id, -}) - -if (!count) { - const user = await userModuleService.createUsers({ - email: authIdentity.entity_id, - }) -} -``` +If a returned item is considered damaged or is dismissed, its quantity doesn't increment the `stocked_quantity` of the inventory item's level. # Cart Concepts @@ -30107,81 +24972,6 @@ const { data: carts } = useQueryGraphStep({ ``` -# Tax Lines in Cart Module - -In this document, you’ll learn about tax lines in a cart and how to retrieve tax lines with the Tax Module. - -## What are Tax Lines? - -A tax line indicates the tax rate of a line item or a shipping method. The [LineItemTaxLine data model](https://docs.medusajs.com/references/cart/models/LineItemTaxLine/index.html.md) represents a line item’s tax line, and the [ShippingMethodTaxLine data model](https://docs.medusajs.com/references/cart/models/ShippingMethodTaxLine/index.html.md) represents a shipping method’s tax line. - -![A diagram showcasing the relation between other data models and the tax line models](https://res.cloudinary.com/dza7lstvk/image/upload/v1711534431/Medusa%20Resources/cart-tax-lines_oheaq6.jpg) - -*** - -## Tax Inclusivity - -By default, the tax amount is calculated by taking the tax rate from the line item or shipping method’s amount, and then adding them to the item/method’s subtotal. - -However, line items and shipping methods have an `is_tax_inclusive` property that, when enabled, indicates that the item or method’s price already includes taxes. - -So, instead of calculating the tax rate and adding it to the item/method’s subtotal, it’s calculated as part of the subtotal. - -The following diagram is a simplified showcase of how a subtotal is calculated from the taxes perspective. - -![A diagram showing an example of calculating the subtotal of a line item using its taxes](https://res.cloudinary.com/dza7lstvk/image/upload/v1711535295/Medusa%20Resources/cart-tax-inclusive_shpr3t.jpg) - -For example, if a line item's amount is `5000`, the tax rate is `10`, and tax inclusivity is enabled, the tax amount is 10% of `5000`, which is `500`, making the unit price of the line item `4500`. - -*** - -## Retrieve Tax Lines - -When using the Cart and Tax modules together, you can use the `getTaxLines` method of the Tax Module’s main service. It retrieves the tax lines for a cart’s line items and shipping methods. - -```ts -// retrieve the cart -const cart = await cartModuleService.retrieveCart("cart_123", { - relations: [ - "items.tax_lines", - "shipping_methods.tax_lines", - "shipping_address", - ], -}) - -// retrieve the tax lines -const taxLines = await taxModuleService.getTaxLines( - [ - ...(cart.items as TaxableItemDTO[]), - ...(cart.shipping_methods as TaxableShippingDTO[]), - ], - { - address: { - ...cart.shipping_address, - country_code: - cart.shipping_address.country_code || "us", - }, - } -) -``` - -Then, use the returned tax lines to set the line items and shipping methods’ tax lines: - -```ts -// set line item tax lines -await cartModuleService.setLineItemTaxLines( - cart.id, - taxLines.filter((line) => "line_item_id" in line) -) - -// set shipping method tax lines -await cartModuleService.setLineItemTaxLines( - cart.id, - taxLines.filter((line) => "shipping_line_id" in line) -) -``` - - # Promotions Adjustments in Carts In this document, you’ll learn how a promotion is applied to a cart’s line items and shipping methods using adjustment lines. @@ -30300,103 +25090,3857 @@ await cartModuleService.setShippingMethodAdjustments( ``` -# Get Product Variant Prices using Query +# Tax Lines in Cart Module -In this document, you'll learn how to retrieve product variant prices in the Medusa application using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). +In this document, you’ll learn about tax lines in a cart and how to retrieve tax lines with the Tax Module. -The Product Module doesn't provide pricing functionalities. The Medusa application links the Product Module's `ProductVariant` data model to the Pricing Module's `PriceSet` data model. +## What are Tax Lines? -So, to retrieve data across the linked records of the two modules, you use Query. +A tax line indicates the tax rate of a line item or a shipping method. The [LineItemTaxLine data model](https://docs.medusajs.com/references/cart/models/LineItemTaxLine/index.html.md) represents a line item’s tax line, and the [ShippingMethodTaxLine data model](https://docs.medusajs.com/references/cart/models/ShippingMethodTaxLine/index.html.md) represents a shipping method’s tax line. -## Retrieve All Product Variant Prices - -To retrieve all product variant prices, retrieve the product using Query and include among its fields `variants.prices.*`. - -For example: - -```ts highlights={[["6"]]} -const { data: products } = await query.graph({ - entity: "product", - fields: [ - "*", - "variants.*", - "variants.prices.*", - ], - filters: { - id: [ - "prod_123", - ], - }, -}) -``` - -Each variant in the retrieved products has a `prices` array property with all the product variant prices. Each price object has the properties of the [Pricing Module's Price data model](https://docs.medusajs.com/references/pricing/models/Price/index.html.md). +![A diagram showcasing the relation between other data models and the tax line models](https://res.cloudinary.com/dza7lstvk/image/upload/v1711534431/Medusa%20Resources/cart-tax-lines_oheaq6.jpg) *** -## Retrieve Calculated Price for a Context +## Tax Inclusivity -The Pricing Module can calculate prices of a variant based on a [context](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md), such as the region ID or the currency code. +By default, the tax amount is calculated by taking the tax rate from the line item or shipping method’s amount, and then adding them to the item/method’s subtotal. -Learn more about prices calculation in [this Pricing Module documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md). +However, line items and shipping methods have an `is_tax_inclusive` property that, when enabled, indicates that the item or method’s price already includes taxes. -To retrieve calculated prices of variants based on a context, retrieve the products using Query and: +So, instead of calculating the tax rate and adding it to the item/method’s subtotal, it’s calculated as part of the subtotal. -- Pass `variants.calculated_price.*` in the `fields` property. -- Pass a `context` property in the object parameter. Its value is an object of objects that sets the context for the retrieved fields. +The following diagram is a simplified showcase of how a subtotal is calculated from the taxes perspective. -For example: +![A diagram showing an example of calculating the subtotal of a line item using its taxes](https://res.cloudinary.com/dza7lstvk/image/upload/v1711535295/Medusa%20Resources/cart-tax-inclusive_shpr3t.jpg) -```ts highlights={[["10"], ["15"], ["16"], ["17"], ["18"], ["19"], ["20"], ["21"], ["22"]]} -import { QueryContext } from "@medusajs/framework/utils" +For example, if a line item's amount is `5000`, the tax rate is `10`, and tax inclusivity is enabled, the tax amount is 10% of `5000`, which is `500`, making the unit price of the line item `4500`. + +*** + +## Retrieve Tax Lines + +When using the Cart and Tax modules together, you can use the `getTaxLines` method of the Tax Module’s main service. It retrieves the tax lines for a cart’s line items and shipping methods. + +```ts +// retrieve the cart +const cart = await cartModuleService.retrieveCart("cart_123", { + relations: [ + "items.tax_lines", + "shipping_methods.tax_lines", + "shipping_address", + ], +}) + +// retrieve the tax lines +const taxLines = await taxModuleService.getTaxLines( + [ + ...(cart.items as TaxableItemDTO[]), + ...(cart.shipping_methods as TaxableShippingDTO[]), + ], + { + address: { + ...cart.shipping_address, + country_code: + cart.shipping_address.country_code || "us", + }, + } +) +``` + +Then, use the returned tax lines to set the line items and shipping methods’ tax lines: + +```ts +// set line item tax lines +await cartModuleService.setLineItemTaxLines( + cart.id, + taxLines.filter((line) => "line_item_id" in line) +) + +// set shipping method tax lines +await cartModuleService.setLineItemTaxLines( + cart.id, + taxLines.filter((line) => "shipping_line_id" in line) +) +``` + + +# Order Concepts + +In this document, you’ll learn about orders and related concepts + +## Order Items + +The items purchased in the order are represented by the [OrderItem data model](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). An order can have multiple items. + +![A diagram showcasing the relation between an order and its items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1712304722/Medusa%20Resources/order-order-items_uvckxd.jpg) + +### Item’s Product Details + +The details of the purchased products are represented by the [LineItem data model](https://docs.medusajs.com/references/order/models/OrderLineItem/index.html.md). Not only does a line item hold the details of the product, but also details related to its price, adjustments due to promotions, and taxes. + +*** + +## Order’s Shipping Method + +An order has one or more shipping methods used to handle item shipment. + +Each shipping method is represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md) that holds its details. The shipping method is linked to the order through the [OrderShipping data model](https://docs.medusajs.com/references/order/models/OrderShipping/index.html.md). + +![A diagram showcasing the relation between an order and its items.](https://res.cloudinary.com/dza7lstvk/image/upload/v1719570409/Medusa%20Resources/order-shipping-method_tkggvd.jpg) + +### data Property + +When fulfilling the order, you can use a third-party fulfillment provider that requires additional custom data to be passed along from the order creation process. + +The `OrderShippingMethod` data model has a `data` property. It’s an object used to store custom data relevant later for fulfillment. + +The Medusa application passes the `data` property to the Fulfillment Module when fulfilling items. + +*** + +## Order Totals + +The order’s total amounts (including tax total, total after an item is returned, etc…) are represented by the [OrderSummary data model](https://docs.medusajs.com/references/order/models/OrderSummary/index.html.md). + +*** + +## Order Payments + +Payments made on an order, whether they’re capture or refund payments, are recorded as transactions represented by the [OrderTransaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). + +An order can have multiple transactions. The sum of these transactions must be equal to the order summary’s total. Otherwise, there’s an outstanding amount. + +Learn more about transactions in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/transactions/index.html.md). + + +# Order Claim + +In this document, you’ll learn about order claims. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/claims/index.html.md) to learn how to manage an order's claims using the dashboard. + +## What is a Claim? + +When a customer receives a defective or incorrect item, the merchant can create a claim to refund or replace the item. + +The [OrderClaim data model](https://docs.medusajs.com/references/order/models/OrderClaim/index.html.md) represents a claim. + +*** + +## Claim Type + +The `Claim` data model has a `type` property whose value indicates the type of the claim: + +- `refund`: the items are returned, and the customer is refunded. +- `replace`: the items are returned, and the customer receives new items. + +*** + +## Old and Replacement Items + +When the claim is created, a return, represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md), is also created to handle receiving the old items from the customer. + +Learn more about returns in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). + +If the claim’s type is `replace`, replacement items are represented by the [ClaimItem data model](https://docs.medusajs.com/references/order/models/OrderClaimItem/index.html.md). + +*** + +## Claim Shipping Methods + +A claim uses shipping methods to send the replacement items to the customer. These methods are represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md). + +The shipping methods for the returned items are associated with the claim's return, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return#return-shipping-methods/index.html.md). + +*** + +## Claim Refund + +If the claim’s type is `refund`, the amount to be refunded is stored in the `refund_amount` property. + +The [Transaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md) represents the refunds made for the claim. + +*** + +## How Claims Impact an Order’s Version + +When a claim is confirmed, the order’s version is incremented. + + +# Order Edit + +In this document, you'll learn about order edits. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/edit/index.html.md) to learn how to edit an order's items using the dashboard. + +## What is an Order Edit? + +A merchant can edit an order to add new items or change the quantity of existing items in the order. + +An order edit is represented by the [OrderChange data model](https://docs.medusajs.com/references/order/models/OrderChange/index.html.md). + +The `OrderChange` data model is associated with any type of change, including a return or exchange. However, its `change_type` property distinguishes the type of change it's making. + +In the case of an order edit, the `OrderChange`'s type is `edit`. + +*** + +## Add Items in an Order Edit + +When the merchant adds new items to the order in the order edit, the item is added as an [OrderItem](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). + +Also, an `OrderChangeAction` is created. The [OrderChangeAction data model](https://docs.medusajs.com/references/order/models/OrderChangeAction/index.html.md) represents a change made by an `OrderChange`, such as an item added. + +So, when an item is added, an `OrderChangeAction` is created with the type `ITEM_ADD`. In its `details` property, the item's ID, price, and quantity are stored. + +*** + +## Update Items in an Order Edit + +A merchant can update an existing item's quantity or price. + +This change is added as an `OrderChangeAction` with the type `ITEM_UPDATE`. In its `details` property, the item's ID, new price, and new quantity are stored. + +*** + +## Shipping Methods of New Items in the Edit + +Adding new items to the order requires adding shipping methods for those items. + +These shipping methods are represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderItem/index.html.md). Also, an `OrderChangeAction` is created with the type `SHIPPING_ADD` + +*** + +## How Order Edits Impact an Order’s Version + +When an order edit is confirmed, the order’s version is incremented. + +*** + +## Payments and Refunds for Order Edit Changes + +Once the Order Edit is confirmed, any additional payment or refund required can be made on the original order. + +This is determined by the comparison between the `OrderSummary` and the order's transactions, as mentioned in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/transactions#checking-outstanding-amount/index.html.md). + + +# Order Exchange + +In this document, you’ll learn about order exchanges. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/exchanges/index.html.md) to learn how to manage an order's exchanges using the dashboard. + +## What is an Exchange? + +An exchange is the replacement of an item that the customer ordered with another. + +A merchant creates the exchange, specifying the items to be replaced and the new items to be sent. + +The [OrderExchange data model](https://docs.medusajs.com/references/order/models/OrderExchange/index.html.md) represents an exchange. + +*** + +## Returned and New Items + +When the exchange is created, a return, represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md), is created to handle receiving the items back from the customer. + +Learn more about returns in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). + +The [OrderExchangeItem data model](https://docs.medusajs.com/references/order/models/OrderExchangeItem/index.html.md) represents the new items to be sent to the customer. + +*** + +## Exchange Shipping Methods + +An exchange has shipping methods used to send the new items to the customer. They’re represented by the [OrderShippingMethod data model](https://docs.medusajs.com/references/order/models/OrderShippingMethod/index.html.md). + +The shipping methods for the returned items are associated with the exchange's return, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return#return-shipping-methods/index.html.md). + +*** + +## Exchange Payment + +The `Exchange` data model has a `difference_due` property that stores the outstanding amount. + +|Condition|Result| +|---|---|---| +|\`difference\_due \< 0\`|Merchant owes the customer a refund of the | +|\`difference\_due > 0\`|Merchant requires additional payment from the customer of the | +|\`difference\_due = 0\`|No payment processing is required.| + +Any payment or refund made is stored in the [Transaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). + +*** + +## How Exchanges Impact an Order’s Version + +When an exchange is confirmed, the order’s version is incremented. + + +# Links between Order Module and Other Modules + +This document showcases the module links defined between the Order Module and other Commerce Modules. + +## Summary + +The Order Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Order|Customer|Read-only - has one|Learn more| +|Order|Cart|Stored - one-to-one|Learn more| +|Order|Fulfillment|Stored - one-to-many|Learn more| +|Return|Fulfillment|Stored - one-to-many|Learn more| +|Order|PaymentCollection|Stored - one-to-many|Learn more| +|OrderClaim|PaymentCollection|Stored - one-to-many|Learn more| +|OrderExchange|PaymentCollection|Stored - one-to-many|Learn more| +|OrderLineItem|Product|Read-only - has many|Learn more| +|Order|Promotion|Stored - many-to-many|Learn more| +|Order|Region|Read-only - has one|Learn more| +|Order|SalesChannel|Read-only - has one|Learn more| + +*** + +## Customer Module + +Medusa defines a read-only link between the `Order` data model and the [Customer Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/customer/index.html.md)'s `Customer` data model. This means you can retrieve the details of an order's customer, but you don't manage the links in a pivot table in the database. The customer of an order is determined by the `customer_id` property of the `Order` data model. + +### Retrieve with Query + +To retrieve the customer of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "customer.*", + ], +}) + +// orders[0].customer +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" // ... -const { data: products } = await query.graph({ - entity: "product", +const { data: orders } = useQueryGraphStep({ + entity: "order", fields: [ - "*", - "variants.*", - "variants.calculated_price.*", + "customer.*", ], - filters: { - id: "prod_123", +}) + +// orders[0].customer +``` + +*** + +## Cart Module + +The [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md) provides cart-management features. + +Medusa defines a link between the `Order` and `Cart` data models. The order is linked to the cart used for the purchased. + +![A diagram showcasing an example of how data models from the Cart and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728375735/Medusa%20Resources/cart-order_ijwmfs.jpg) + +### Retrieve with Query + +To retrieve the cart of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `cart.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "cart.*", + ], +}) + +// orders[0].cart +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "cart.*", + ], +}) + +// orders[0].cart +``` + +### Manage with Link + +To manage the cart of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", }, - context: { - variants: { - calculated_price: QueryContext({ - region_id: "reg_01J3MRPDNXXXDSCC76Y6YCZARS", - currency_code: "eur", - }), - }, + [Modules.CART]: { + cart_id: "cart_123", }, }) ``` -For the context of the product variant's calculated price, you pass an object to `context` with the property `variants`, whose value is another object with the property `calculated_price`. +### createRemoteLinkStep -`calculated_price`'s value is created using `QueryContext` from the Modules SDK, passing it a [calculation context object](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md). +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" -Each variant in the retrieved products has a `calculated_price` object. Learn more about its properties in [this Pricing Module guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#returned-price-object/index.html.md). +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.CART]: { + cart_id: "cart_123", + }, +}) +``` + +*** + +## Fulfillment Module + +A fulfillment is created for an orders' items. Medusa defines a link between the `Fulfillment` and `Order` data models. + +![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716549903/Medusa%20Resources/order-fulfillment_h0vlps.jpg) + +A fulfillment is also created for a return's items. So, Medusa defines a link between the `Fulfillment` and `Return` data models. + +![A diagram showcasing an example of how data models from the Fulfillment and Order modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399052/Medusa%20Resources/Social_Media_Graphics_2024_Order_Return_vetimk.jpg) + +### Retrieve with Query + +To retrieve the fulfillments of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `fulfillments.*` in `fields`: + +To retrieve the fulfillments of a return, pass `fulfillments.*` in `fields`. + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "fulfillments.*", + ], +}) + +// orders[0].fulfillments +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "fulfillments.*", + ], +}) + +// orders[0].fulfillments +``` + +### Manage with Link + +To manage the fulfillments of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_id: "ful_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_id: "ful_123", + }, +}) +``` + +*** + +## Payment Module + +An order's payment details are stored in a payment collection. This also applies for claims and exchanges. + +So, Medusa defines links between the `PaymentCollection` data model and the `Order`, `OrderClaim`, and `OrderExchange` data models. + +![A diagram showcasing an example of how data models from the Order and Payment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716554726/Medusa%20Resources/order-payment_ubdwok.jpg) + +### Retrieve with Query + +To retrieve the payment collections of an order, order exchange, or order claim with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `payment_collections.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "payment_collections.*", + ], +}) + +// orders[0].payment_collections +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "payment_collections.*", + ], +}) + +// orders[0].payment_collections +``` + +### Manage with Link + +To manage the payment collections of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +*** + +## Product Module + +Medusa defines read-only links between: + +- the `OrderLineItem` data model and the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md)'s `Product` data model. This means you can retrieve the details of a line item's product, but you don't manage the links in a pivot table in the database. The product of a line item is determined by the `product_id` property of the `OrderLineItem` data model. +- the `OrderLineItem` data model and the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md)'s `ProductVariant` data model. This means you can retrieve the details of a line item's variant, but you don't manage the links in a pivot table in the database. The variant of a line item is determined by the `variant_id` property of the `OrderLineItem` data model. + +### Retrieve with Query + +To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: + +To retrieve the product, pass `product.*` in `fields`. + +### query.graph + +```ts +const { data: lineItems } = await query.graph({ + entity: "order_line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems.variant +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: lineItems } = useQueryGraphStep({ + entity: "order_line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems.variant +``` + +*** + +## Promotion Module + +An order is associated with the promotion applied on it. Medusa defines a link between the `Order` and `Promotion` data models. + +![A diagram showcasing an example of how data models from the Order and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716555015/Medusa%20Resources/order-promotion_dgjzzd.jpg) + +### Retrieve with Query + +To retrieve the promotion applied on an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `promotion.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "promotion.*", + ], +}) + +// orders[0].promotion +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "promotion.*", + ], +}) + +// orders[0].promotion +``` + +### Manage with Link + +To manage the promotion of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + +*** + +## Region Module + +Medusa defines a read-only link between the `Order` data model and the [Region Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/region/index.html.md)'s `Region` data model. This means you can retrieve the details of an order's region, but you don't manage the links in a pivot table in the database. The region of an order is determined by the `region_id` property of the `Order` data model. + +### Retrieve with Query + +To retrieve the region of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "region.*", + ], +}) + +// orders[0].region +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "region.*", + ], +}) + +// orders[0].region +``` + +*** + +## Sales Channel Module + +Medusa defines a read-only link between the `Order` data model and the [Sales Channel Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md)'s `SalesChannel` data model. This means you can retrieve the details of an order's sales channel, but you don't manage the links in a pivot table in the database. The sales channel of an order is determined by the `sales_channel_id` property of the `Order` data model. + +### Retrieve with Query + +To retrieve the sales channel of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "sales_channel.*", + ], +}) + +// orders[0].sales_channel +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "sales_channel.*", + ], +}) + +// orders[0].sales_channel +``` -# Stripe Module Provider +# Order Versioning -In this document, you’ll learn about the Stripe Module Provider and how to configure it in the Payment Module. +In this document, you’ll learn how an order and its details are versioned. -Your technical team must install the Stripe Module Provider in your Medusa application first. Then, refer to [this user guide](https://docs.medusajs.com/user-guide/settings/regions#edit-region-details/index.html.md) to learn how to enable the Stripe payment provider in a region using the Medusa Admin dashboard. +## What's Versioning? -## Register the Stripe Module Provider +Versioning means assigning a version number to a record, such as an order and its items. This is useful to view the different versions of the order following changes in its lifetime. -### Prerequisites +When changes are made on an order, such as an item is added or returned, the order's version changes. -- [Stripe account](https://stripe.com/) -- [Stripe Secret API Key](https://support.stripe.com/questions/locate-api-keys-in-the-dashboard) -- [For deployed Medusa applications, a Stripe webhook secret. Refer to the end of this guide for details on the URL and events.](https://docs.stripe.com/webhooks#add-a-webhook-endpoint) +*** -The Stripe Module Provider is installed by default in your application. To use it, add it to the array of providers passed to the Payment Module in `medusa-config.ts`: +## version Property + +The `Order` and `OrderSummary` data models have a `version` property that indicates the current version. By default, its value is `1`. + +Other order-related data models, such as `OrderItem`, also has a `version` property, but it indicates the version it belongs to. + +*** + +## How the Version Changes + +When the order is changed, such as an item is exchanged, this changes the version of the order and its related data: + +1. The version of the order and its summary is incremented. +2. Related order data that have a `version` property, such as the `OrderItem`, are duplicated. The duplicated item has the new version, whereas the original item has the previous version. + +When the order is retrieved, only the related data having the same version is retrieved. + + +# Order Return + +In this document, you’ll learn about order returns. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/orders/returns/index.html.md) to learn how to manage an order's returns using the dashboard. + +## What is a Return? + +A return is the return of items delivered from the customer back to the merchant. It is represented by the [Return data model](https://docs.medusajs.com/references/order/models/Return/index.html.md). + +A return is requested either by the customer from the storefront, or the merchant from the admin. Medusa supports an automated Return Merchandise Authorization (RMA) flow. + +![Diagram showcasing the automated RMA flow.](https://res.cloudinary.com/dza7lstvk/image/upload/v1719578128/Medusa%20Resources/return-rma_pzprwq.jpg) + +Once the merchant receives the returned items, they mark the return as received. + +*** + +## Returned Items + +The items to be returned are represented by the [ReturnItem data model](references/order/models/ReturnItem). + +The `ReturnItem` model has two properties storing the item's quantity: + +1. `received_quantity`: The quantity of the item that's received and can be added to the item's inventory quantity. +2. `damaged_quantity`: The quantity of the item that's damaged, meaning it can't be sold again or added to the item's inventory quantity. + +*** + +## Return Shipping Methods + +A return has shipping methods used to return the items to the merchant. The shipping methods are represented by the [OrderShippingMethod data model](references/order/models/OrderShippingMethod). + +In the Medusa application, the shipping method for a return is created only from a shipping option, provided by the Fulfillment Module, that has the rule `is_return` enabled. + +*** + +## Refund Payment + +The `refund_amount` property of the `Return` data model holds the amount a merchant must refund the customer. + +The [OrderTransaction data model](references/order/models/OrderTransaction) represents the refunds made for the return. + +*** + +## Returns in Exchanges and Claims + +When a merchant creates an exchange or a claim, it includes returning items from the customer. + +The `Return` data model also represents the return of these items. In this case, the return is associated with the exchange or claim it was created for. + +*** + +## How Returns Impact an Order’s Version + +The order’s version is incremented when: + +1. A return is requested. +2. A return is marked as received. + + +# Order Change + +In this document, you'll learn about the Order Change data model and possible actions in it. + +## OrderChange Data Model + +The [OrderChange data model](https://docs.medusajs.com/references/order/models/OrderChange/index.html.md) represents any kind of change to an order, such as a return, exchange, or edit. + +Its `change_type` property indicates what the order change is created for: + +1. `edit`: The order change is making edits to the order, as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/edit/index.html.md). +2. `exchange`: The order change is associated with an exchange, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/exchange/index.html.md). +3. `claim`: The order change is associated with a claim, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/claim/index.html.md). +4. `return_request` or `return_receive`: The order change is associated with a return, which you can learn about in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/return/index.html.md). + +Once the order change is confirmed, its changes are applied on the order. + +*** + +## Order Change Actions + +The actions to perform on the original order by a change, such as adding an item, are represented by the [OrderChangeAction data model](https://docs.medusajs.com/references/order/models/OrderChangeAction/index.html.md). + +The `OrderChangeAction` has an `action` property that indicates the type of action to perform on the order, and a `details` property that holds more details related to the action. + +The following table lists the possible `action` values that Medusa uses and what `details` they carry. + +|Action|Description|Details| +|---|---|---|---|---| +|\`ITEM\_ADD\`|Add an item to the order.|\`details\`| +|\`ITEM\_UPDATE\`|Update an item in the order.|\`details\`| +|\`RETURN\_ITEM\`|Set an item to be returned.|\`details\`| +|\`RECEIVE\_RETURN\_ITEM\`|Mark a return item as received.|\`details\`| +|\`RECEIVE\_DAMAGED\_RETURN\_ITEM\`|Mark a return item that's damaged as received.|\`details\`| +|\`SHIPPING\_ADD\`|Add a shipping method for new or returned items.|No details added. The ID to the shipping method is added in the | +|\`SHIPPING\_ADD\`|Add a shipping method for new or returned items.|No details added. The ID to the shipping method is added in the | +|\`WRITE\_OFF\_ITEM\`|Remove an item's quantity as part of the claim, without adding the quantity back to the item variant's inventory.|\`details\`| + + +# Tax Lines in Order Module + +In this document, you’ll learn about tax lines in an order. + +## What are Tax Lines? + +A tax line indicates the tax rate of a line item or a shipping method. + +The [OrderLineItemTaxLine data model](https://docs.medusajs.com/references/order/models/OrderLineItemTaxLine/index.html.md) represents a line item’s tax line, and the [OrderShippingMethodTaxLine data model](https://docs.medusajs.com/references/order/models/OrderShippingMethodTaxLine/index.html.md) represents a shipping method’s tax line. + +![A diagram showcasing the relation between orders, items and shipping methods, and tax lines](https://res.cloudinary.com/dza7lstvk/image/upload/v1712307225/Medusa%20Resources/order-tax-lines_sixujd.jpg) + +*** + +## Tax Inclusivity + +By default, the tax amount is calculated by taking the tax rate from the line item or shipping method’s amount and then adding it to the item/method’s subtotal. + +However, line items and shipping methods have an `is_tax_inclusive` property that, when enabled, indicates that the item or method’s price already includes taxes. + +So, instead of calculating the tax rate and adding it to the item/method’s subtotal, it’s calculated as part of the subtotal. + +The following diagram is a simplified showcase of how a subtotal is calculated from the tax perspective. + +![A diagram showcasing how a subtotal is calculated from the tax perspective](https://res.cloudinary.com/dza7lstvk/image/upload/v1712307395/Medusa%20Resources/order-tax-inclusive_oebdnm.jpg) + +For example, if a line item's amount is `5000`, the tax rate is `10`, and `is_tax_inclusive` is enabled, the tax amount is 10% of `5000`, which is `500`. The item's unit price becomes `4500`. + + +# Pricing Concepts + +In this document, you’ll learn about the main concepts in the Pricing Module. + +## Price Set + +A [PriceSet](https://docs.medusajs.com/references/pricing/models/PriceSet/index.html.md) represents a collection of prices that are linked to a resource (for example, a product or a shipping option). + +Each of these prices are represented by the [Price data module](https://docs.medusajs.com/references/pricing/models/Price/index.html.md). + +![A diagram showcasing the relation between the price set and price](https://res.cloudinary.com/dza7lstvk/image/upload/v1709648650/Medusa%20Resources/price-set-money-amount_xeees0.jpg) + +*** + +## Price List + +A [PriceList](https://docs.medusajs.com/references/pricing/models/PriceList/index.html.md) is a group of prices only enabled if their conditions and rules are satisfied. + +A price list has optional `start_date` and `end_date` properties that indicate the date range in which a price list can be applied. + +Its associated prices are represented by the `Price` data model. + + +# Links between Pricing Module and Other Modules + +This document showcases the module links defined between the Pricing Module and other Commerce Modules. + +## Summary + +The Pricing Module has the following links to other modules: + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|ShippingOption|PriceSet|Stored - one-to-one|Learn more| +|ProductVariant|PriceSet|Stored - one-to-one|Learn more| + +*** + +## Fulfillment Module + +The Fulfillment Module provides fulfillment-related functionalities, including shipping options that the customer chooses from when they place their order. However, it doesn't provide pricing-related functionalities for these options. + +Medusa defines a link between the `PriceSet` and `ShippingOption` data models. A shipping option's price is stored as a price set. + +![A diagram showcasing an example of how data models from the Pricing and Fulfillment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716561747/Medusa%20Resources/pricing-fulfillment_spywwa.jpg) + +### Retrieve with Query + +To retrieve the shipping option of a price set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `shipping_option.*` in `fields`: + +### query.graph + +```ts +const { data: priceSets } = await query.graph({ + entity: "price_set", + fields: [ + "shipping_option.*", + ], +}) + +// priceSets[0].shipping_option +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: priceSets } = useQueryGraphStep({ + entity: "price_set", + fields: [ + "shipping_option.*", + ], +}) + +// priceSets[0].shipping_option +``` + +### Manage with Link + +To manage the price set of a shipping option, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.FULFILLMENT]: { + shipping_option_id: "so_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.FULFILLMENT]: { + shipping_option_id: "so_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +*** + +## Product Module + +The Product Module doesn't store or manage the prices of product variants. + +Medusa defines a link between the `ProductVariant` and the `PriceSet`. A product variant’s prices are stored as prices belonging to a price set. + +![A diagram showcasing an example of how data models from the Pricing and Product Module are linked. The PriceSet is linked to the ProductVariant of the Product Module.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651039/Medusa%20Resources/pricing-product_m4xaut.jpg) + +So, when you want to add prices for a product variant, you create a price set and add the prices to it. + +You can then benefit from adding rules to prices or using the `calculatePrices` method to retrieve the price of a product variant within a specified context. + +### Retrieve with Query + +To retrieve the variant of a price set with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: + +### query.graph + +```ts +const { data: priceSets } = await query.graph({ + entity: "price_set", + fields: [ + "variant.*", + ], +}) + +// priceSets[0].variant +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: priceSets } = useQueryGraphStep({ + entity: "price_set", + fields: [ + "variant.*", + ], +}) + +// priceSets[0].variant +``` + +### Manage with Link + +To manage the price set of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + + +# Prices Calculation + +In this document, you'll learn how prices are calculated when you use the [calculatePrices method](https://docs.medusajs.com/references/pricing/calculatePrices/index.html.md) of the Pricing Module's main service. + +## calculatePrices Method + +The [calculatePrices method](https://docs.medusajs.com/references/pricing/calculatePrices/index.html.md) accepts as parameters the ID of one or more price sets and a context. + +It returns a price object with the best matching price for each price set. + +### Calculation Context + +The calculation context is an optional object passed as a second parameter to the `calculatePrices` method. It accepts rules to restrict the selected prices in the price set. + +For example: + +```ts +const price = await pricingModuleService.calculatePrices( + { id: [priceSetId] }, + { + context: { + currency_code: currencyCode, + region_id: "reg_123", + }, + } +) +``` + +In this example, you retrieve the prices in a price set for the specified currency code and region ID. + +### Returned Price Object + +For each price set, the `calculatePrices` method selects two prices: + +- A calculated price: Either a price that belongs to a price list and best matches the specified context, or the same as the original price. +- An original price, which is either: + - The same price as the calculated price if the price list it belongs to is of type `override`; + - Or a price that doesn't belong to a price list and best matches the specified context. + +Both prices are returned in an object that has the following properties: + +- id: (\`string\`) The ID of the price set from which the price was selected. +- is\_calculated\_price\_price\_list: (\`boolean\`) Whether the calculated price belongs to a price list. +- calculated\_amount: (\`number\`) The amount of the calculated price, or \`null\` if there isn't a calculated price. This is the amount shown to the customer. +- is\_original\_price\_price\_list: (\`boolean\`) Whether the original price belongs to a price list. +- original\_amount: (\`number\`) The amount of the original price, or \`null\` if there isn't an original price. This amount is useful to compare with the \`calculated\_amount\`, such as to check for discounted value. +- currency\_code: (\`string\`) The currency code of the calculated price, or \`null\` if there isn't a calculated price. +- is\_calculated\_price\_tax\_inclusive: (\`boolean\`) Whether the calculated price is tax inclusive. Learn more about tax-inclusivity in \[this document]\(../tax-inclusive-pricing/page.mdx) +- is\_original\_price\_tax\_inclusive: (\`boolean\`) Whether the original price is tax inclusive. Learn more about tax-inclusivity in \[this document]\(../tax-inclusive-pricing/page.mdx) +- calculated\_price: (\`object\`) The calculated price's price details. + + - id: (\`string\`) The ID of the price. + + - price\_list\_id: (\`string\`) The ID of the associated price list. + + - price\_list\_type: (\`string\`) The price list's type. For example, \`sale\`. + + - min\_quantity: (\`number\`) The price's min quantity condition. + + - max\_quantity: (\`number\`) The price's max quantity condition. +- original\_price: (\`object\`) The original price's price details. + + - id: (\`string\`) The ID of the price. + + - price\_list\_id: (\`string\`) The ID of the associated price list. + + - price\_list\_type: (\`string\`) The price list's type. For example, \`sale\`. + + - min\_quantity: (\`number\`) The price's min quantity condition. + + - max\_quantity: (\`number\`) The price's max quantity condition. + +*** + +## Examples + +Consider the following price set: + +```ts +const priceSet = await pricingModuleService.createPriceSets({ + prices: [ + // default price + { + amount: 500, + currency_code: "EUR", + rules: {}, + }, + // prices with rules + { + amount: 400, + currency_code: "EUR", + rules: { + region_id: "reg_123", + }, + }, + { + amount: 450, + currency_code: "EUR", + rules: { + city: "krakow", + }, + }, + { + amount: 500, + currency_code: "EUR", + rules: { + city: "warsaw", + region_id: "reg_123", + }, + }, + { + amount: 200, + currency_code: "EUR", + min_quantity: 100, + }, + ], +}) +``` + +### Default Price Selection + +### Code + +```ts +const price = await pricingModuleService.calculatePrices( + { id: [priceSet.id] }, + { + context: { + currency_code: "EUR" + } + } +) +``` + +### Result + +### Calculate Prices with Rules + +### Code + +```ts +const price = await pricingModuleService.calculatePrices( + { id: [priceSet.id] }, + { + context: { + currency_code: "EUR", + region_id: "reg_123", + city: "krakow" + } + } +) +``` + +### Result + +### Tiered Pricing Selection + +### Code + +```ts +const price = await pricingModuleService.calculatePrices( + { id: [priceSet.id] }, + { + context: { + cart: { + items: [ + { + id: "item_1", + quantity: 200, + // assuming the price set belongs to this variant + variant_id: "variant_1", + // ... + } + ], + // ... + } + } + } +) +``` + +### Result + +### Price Selection with Price List + +### Code + +```ts +const priceList = pricingModuleService.createPriceLists([{ + title: "Summer Price List", + description: "Price list for summer sale", + starts_at: Date.parse("01/10/2023").toString(), + ends_at: Date.parse("31/10/2023").toString(), + rules: { + region_id: ['PL'] + }, + type: "sale", + prices: [ + { + amount: 400, + currency_code: "EUR", + price_set_id: priceSet.id, + }, + { + amount: 450, + currency_code: "EUR", + price_set_id: priceSet.id, + }, + ], +}]); + +const price = await pricingModuleService.calculatePrices( + { id: [priceSet.id] }, + { + context: { + currency_code: "EUR", + region_id: "PL", + city: "krakow" + } + } +) +``` + +### Result + + +# Promotions Adjustments in Orders + +In this document, you’ll learn how a promotion is applied to an order’s items and shipping methods using adjustment lines. + +## What are Adjustment Lines? + +An adjustment line indicates a change to a line item or a shipping method’s amount. It’s used to apply promotions or discounts on an order. + +The [OrderLineItemAdjustment data model](https://docs.medusajs.com/references/order/models/OrderLineItemAdjustment/index.html.md) represents changes on a line item, and the [OrderShippingMethodAdjustment data model](https://docs.medusajs.com/references/order/models/OrderShippingMethodAdjustment/index.html.md) represents changes on a shipping method. + +![A diagram showcasing the relation between an order, its items and shipping methods, and their adjustment lines](https://res.cloudinary.com/dza7lstvk/image/upload/v1712306017/Medusa%20Resources/order-adjustments_myflir.jpg) + +The `amount` property of the adjustment line indicates the amount to be discounted from the original amount. + +The ID of the applied promotion is stored in the `promotion_id` property of the adjustment line. + +*** + +## Discountable Option + +The `OrderLineItem` data model has an `is_discountable` property that indicates whether promotions can be applied to the line item. It’s enabled by default. + +When disabled, a promotion can’t be applied to a line item. In the context of the Promotion Module, the promotion isn’t applied to the line item even if it matches its rules. + +*** + +## Promotion Actions + +When using the Order and Promotion modules together, use the [computeActions method of the Promotion Module’s main service](https://docs.medusajs.com/references/promotion/computeActions/index.html.md). It retrieves the actions of line items and shipping methods. + +Learn more about actions in the [Promotion Module’s documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/actions/index.html.md). + +```ts collapsibleLines="1-10" expandButtonLabel="Show Imports" +import { + ComputeActionAdjustmentLine, + ComputeActionItemLine, + ComputeActionShippingLine, + // ... +} from "@medusajs/framework/types" + +// ... + +// retrieve the order +const order = await orderModuleService.retrieveOrder("ord_123", { + relations: [ + "items.item.adjustments", + "shipping_methods.shipping_method.adjustments", + ], +}) +// retrieve the line item adjustments +const lineItemAdjustments: ComputeActionItemLine[] = [] +order.items.forEach((item) => { + const filteredAdjustments = item.adjustments?.filter( + (adjustment) => adjustment.code !== undefined + ) as unknown as ComputeActionAdjustmentLine[] + if (filteredAdjustments.length) { + lineItemAdjustments.push({ + ...item, + ...item.detail, + adjustments: filteredAdjustments, + }) + } +}) + +//retrieve shipping method adjustments +const shippingMethodAdjustments: ComputeActionShippingLine[] = + [] +order.shipping_methods.forEach((shippingMethod) => { + const filteredAdjustments = + shippingMethod.adjustments?.filter( + (adjustment) => adjustment.code !== undefined + ) as unknown as ComputeActionAdjustmentLine[] + if (filteredAdjustments.length) { + shippingMethodAdjustments.push({ + ...shippingMethod, + adjustments: filteredAdjustments, + }) + } +}) + +// compute actions +const actions = await promotionModuleService.computeActions( + ["promo_123"], + { + items: lineItemAdjustments, + shipping_methods: shippingMethodAdjustments, + // TODO infer from cart or region + currency_code: "usd", + } +) +``` + +The `computeActions` method accepts the existing adjustments of line items and shipping methods to compute the actions accurately. + +Then, use the returned `addItemAdjustment` and `addShippingMethodAdjustment` actions to set the order’s line items and the shipping method’s adjustments. + +```ts collapsibleLines="1-9" expandButtonLabel="Show Imports" +import { + AddItemAdjustmentAction, + AddShippingMethodAdjustment, + // ... +} from "@medusajs/framework/types" + +// ... + +await orderModuleService.setOrderLineItemAdjustments( + order.id, + actions.filter( + (action) => action.action === "addItemAdjustment" + ) as AddItemAdjustmentAction[] +) + +await orderModuleService.setOrderShippingMethodAdjustments( + order.id, + actions.filter( + (action) => + action.action === "addShippingMethodAdjustment" + ) as AddShippingMethodAdjustment[] +) +``` + + +# Price Tiers and Rules + +In this Pricing Module guide, you'll learn about tired prices, price rules for price sets and price lists, and how to add rules to a price. + +## Tiered Pricing + +Each price, represented by the [Price data model](https://docs.medusajs.com/references/pricing/models/Price/index.html.md), has two optional properties that can be used to create tiered prices: + +- `min_quantity`: The minimum quantity that must be in the cart for the price to be applied. +- `max_quantity`: The maximum quantity that can be in the cart for the price to be applied. + +This is useful to set tiered pricing for resources like product variants and shipping options. + +For example, you can set a variant's price to: + +- `$10` by default. +- `$8` when the customer adds `10` or more of the variant to the cart. +- `$6` when the customer adds `20` or more of the variant to the cart. + +These price definitions would look like this: + +```json title="Example Prices" +[ + // default price + { + "amount": 10, + "currency_code": "usd", + }, + { + "amount": 8, + "currency_code": "usd", + "min_quantity": 10, + "max_quantity": 19, + }, + { + "amount": 6, + "currency_code": "usd", + "min_quantity": 20, + }, +], +``` + +### How to Create Tiered Prices? + +When you create prices, you can specify a `min_quantity` and `max_quantity` for each price. This allows you to create tiered pricing, where the price changes based on the quantity of items in the cart. + +For example: + +For most use cases where you're building customizations in the Medusa application, it's highly recommended to use [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) rather than using the Pricing Module directly. Medusa's workflows already implement extensive functionalities that you can re-use in your custom flows, with reliable roll-back mechanism. + +### Using Medusa Workflows + +```ts highlights={tieredPricingHighlights} +const { result } = await createProductsWorkflow(container) + .run({ + input: { + products: [{ + variants: [{ + id: "variant_1", + prices: [ + // default price + { + amount: 10, + currency_code: "usd", + }, + { + amount: 8, + currency_code: "usd", + min_quantity: 10, + max_quantity: 19, + }, + { + amount: 6, + currency_code: "usd", + min_quantity: 20, + }, + ], + // ... + }], + }], + // ... + }, + }) +``` + +### Using the Pricing Module + +```ts +const priceSet = await pricingModule.addPrices({ + priceSetId: "pset_1", + prices: [ + // default price + { + amount: 10, + currency_code: "usd", + }, + // tiered prices + { + amount: 8, + currency_code: "usd", + min_quantity: 10, + max_quantity: 19, + }, + { + amount: 6, + currency_code: "usd", + min_quantity: 20, + }, + ], +}) +``` + +In this example, you create a product with a variant whose default price is `$10`. You also add two tiered prices that set the price to `$8` when the quantity is between `10` and `19`, and to `$6` when the quantity is `20` or more. + +### How are Tiered Prices Applied? + +The [price calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) mechanism considers the cart's items as a context when choosing the best price to apply. + +For example, consider the customer added the `variant_1` product variant (created in the workflow snippet of the [above section](#how-to-create-tiered-prices)) to their cart with a quantity of `15`. + +The price calculation mechanism will choose the second price, which is `$8`, because the quantity of `15` is between `10` and `19`. + +If there are other rules applied to the price, they may affect the price calculation. Keep reading to learn about other price rules, and refer to the [Price Calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) guide for more details on the calculation mechanism. + +*** + +## Price Rule + +You can also restrict prices by advanced rules, such as a customer's group, zip code, or a cart's total. + +Each rule of a price is represented by the [PriceRule data model](https://docs.medusajs.com/references/pricing/models/PriceRule/index.html.md). + +The `Price` data model has a `rules_count` property, which indicates how many rules, represented by `PriceRule`, are applied to the price. + +For exmaple, you create a price restricted to `10557` zip codes. + +![A diagram showcasing the relation between the PriceRule and Price](https://res.cloudinary.com/dza7lstvk/image/upload/v1709648772/Medusa%20Resources/price-rule-1_vy8bn9.jpg) + +A price can have multiple price rules. + +For example, a price can be restricted by a region and a zip code. + +![A diagram showcasing the relation between the PriceRule and Price with multiple rules.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709649296/Medusa%20Resources/price-rule-3_pwpocz.jpg) + +### Price List Rules + +Rules applied to a price list are represented by the [PriceListRule data model](https://docs.medusajs.com/references/pricing/models/PriceListRule/index.html.md). + +The `rules_count` property of a `PriceList` indicates how many rules are applied to it. + +![A diagram showcasing the relation between the PriceSet, PriceList, Price, RuleType, and PriceListRuleValue](https://res.cloudinary.com/dza7lstvk/image/upload/v1709641999/Medusa%20Resources/price-list_zd10yd.jpg) + +### How to Create Prices with Rules? + +When you create prices, you can specify rules for each price. This allows you to create complex pricing strategies based on different contexts. + +For example: + +For most use cases where you're building customizations in the Medusa application, it's highly recommended to use [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) rather than using the Pricing Module directly. Medusa's workflows already implement extensive functionalities that you can re-use in your custom flows, with reliable roll-back mechanism. + +### Using Medusa Workflows + +```ts highlights={workflowHighlights} +const { result } = await createShippingOptionsWorkflow(container) + .run({ + input: [{ + name: "Standard Shipping", + service_zone_id: "serzo_123", + shipping_profile_id: "sp_123", + provider_id: "prov_123", + type: { + label: "Standard", + description: "Standard shipping", + code: "standard", + }, + price_type: "flat", + prices: [ + // default price + { + currency_code: "usd", + amount: 10, + rules: {}, + }, + // price if cart total >= $100 + { + currency_code: "usd", + amount: 0, + rules: { + item_total: { + operator: "gte", + value: 100, + }, + }, + }, + ], + }], + }) +``` + +### Using the Pricing Module + +```ts +const priceSet = await pricingModule.addPrices({ + priceSetId: "pset_1", + prices: [ + // default price + { + currency_code: "usd", + amount: 10, + rules: {}, + }, + // price if cart total >= $100 + { + currency_code: "usd", + amount: 0, + rules: { + item_total: { + operator: "gte", + value: 100, + }, + }, + }, + ], +}) +``` + +In this example, you create a shipping option whose default price is `$10`. When the total of the cart or order using this shipping option is greater than `$100`, the shipping option's price becomes free. + +### How is the Price Rule Applied? + +The [price calculation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md) mechanism considers a price applicable when the resource that this price is in matches the specified rules. + +For example, a [cart object](https://docs.medusajs.com/api/store#carts_cart_schema) has an `item_total` property. So, if a shipping option has the following price: + +```json +{ + "currency_code": "usd", + "amount": 0, + "rules": { + "item_total": { + "operator": "gte", + "value": 100, + } + } +} +``` + +The shipping option's price is applied when the cart's `item_total` is greater than or equal to `$100`. + +You can also apply the rule on nested relations and properties. For example, to apply a shipping option's price based on the customer's group, you can apply a rule on the `customer.group.id` attribute: + +```json +{ + "currency_code": "usd", + "amount": 0, + "rules": { + "customer.group.id": { + "operator": "eq", + "value": "cusgrp_123" + } + } +} +``` + +In this example, the price is only applied if a cart's customer belongs to the customer group of ID `cusgrp_123`. + +These same rules apply to product variant prices as well, or any other resource that has a price. + + +# Tax-Inclusive Pricing + +In this document, you’ll learn about tax-inclusive pricing and how it's used when calculating prices. + +## What is Tax-Inclusive Pricing? + +A tax-inclusive price is a price of a resource that includes taxes. Medusa calculates the tax amount from the price rather than adds the amount to it. + +For example, if a product’s price is $50, the tax rate is 2%, and tax-inclusive pricing is enabled, then the product's price is $49, and the applied tax amount is $1. + +*** + +## How is Tax-Inclusive Pricing Set? + +The [PricePreference data model](https://docs.medusajs.com/references/pricing/models/PricePreference/index.html.md) holds the tax-inclusive setting for a context. It has two properties that indicate the context: + +- `attribute`: The name of the attribute to compare against. For example, `region_id` or `currency_code`. +- `value`: The attribute’s value. For example, `reg_123` or `usd`. + +Only `region_id` and `currency_code` are supported as an `attribute` at the moment. + +The `is_tax_inclusive` property indicates whether tax-inclusivity is enabled in the specified context. + +For example: + +```json +{ + "attribute": "currency_code", + "value": "USD", + "is_tax_inclusive": true, +} +``` + +In this example, tax-inclusivity is enabled for the `USD` currency code. + +*** + +## Tax-Inclusive Pricing in Price Calculation + +### Tax Context + +As mentioned in the [Price Calculation documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md), The `calculatePrices` method accepts as a parameter a calculation context. + +To get accurate tax results, pass the `region_id` and / or `currency_code` in the calculation context. + +### Returned Tax Properties + +The `calculatePrices` method returns two properties related to tax-inclusivity: + +Learn more about the returned properties in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#returned-price-object/index.html.md). + +- `is_calculated_price_tax_inclusive`: Whether the selected `calculated_price` is tax-inclusive. +- `is_original_price_tax_inclusive` : Whether the selected `original_price` is tax-inclusive. + +A price is considered tax-inclusive if: + +1. It belongs to the region or currency code specified in the calculation context; +2. and the region or currency code has a price preference with `is_tax_inclusive` enabled. + +### Tax Context Precedence + +A region’s price preference’s `is_tax_inclusive`'s value takes higher precedence in determining whether a price is tax-inclusive if: + +- both the `region_id` and `currency_code` are provided in the calculation context; +- the selected price belongs to the region; +- and the region has a price preference + + +# Promotion Actions + +In this document, you’ll learn about promotion actions and how they’re computed using the [computeActions method](https://docs.medusajs.com/references/promotion/computeActions/index.html.md). + +## computeActions Method + +The Promotion Module's main service has a [computeActions method](https://docs.medusajs.com/references/promotion/computeActions/index.html.md) that returns an array of actions to perform on a cart when one or more promotions are applied. + +Actions inform you what adjustment must be made to a cart item or shipping method. Each action is an object having the `action` property indicating the type of action. + +*** + +## Action Types + +### `addItemAdjustment` Action + +The `addItemAdjustment` action indicates that an adjustment must be made to an item. For example, removing $5 off its amount. + +This action has the following format: + +```ts +export interface AddItemAdjustmentAction { + action: "addItemAdjustment" + item_id: string + amount: number + code: string + description?: string +} +``` + +This action means that a new record should be created of the `LineItemAdjustment` data model in the Cart Module, or `OrderLineItemAdjustment` data model in the Order Module. + +Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.AddItemAdjustmentAction/index.html.md) for details on the object’s properties. + +### `removeItemAdjustment` Action + +The `removeItemAdjustment` action indicates that an adjustment must be removed from a line item. For example, remove the $5 discount. + +The `computeActions` method accepts any previous item adjustments in the `items` property of the second parameter. + +This action has the following format: + +```ts +export interface RemoveItemAdjustmentAction { + action: "removeItemAdjustment" + adjustment_id: string + description?: string + code: string +} +``` + +This action means that a new record should be removed of the `LineItemAdjustment` (or `OrderLineItemAdjustment`) with the specified ID in the `adjustment_id` property. + +Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.RemoveItemAdjustmentAction/index.html.md) for details on the object’s properties. + +### `addShippingMethodAdjustment` Action + +The `addShippingMethodAdjustment` action indicates that an adjustment must be made on a shipping method. For example, make the shipping method free. + +This action has the following format: + +```ts +export interface AddShippingMethodAdjustment { + action: "addShippingMethodAdjustment" + shipping_method_id: string + amount: number + code: string + description?: string +} +``` + +This action means that a new record should be created of the `ShippingMethodAdjustment` data model in the Cart Module, or `OrderShippingMethodAdjustment` data model in the Order Module. + +Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.AddShippingMethodAdjustment/index.html.md) for details on the object’s properties. + +### `removeShippingMethodAdjustment` Action + +The `removeShippingMethodAdjustment` action indicates that an adjustment must be removed from a shipping method. For example, remove the free shipping discount. + +The `computeActions` method accepts any previous shipping method adjustments in the `shipping_methods` property of the second parameter. + +This action has the following format: + +```ts +export interface RemoveShippingMethodAdjustment { + action: "removeShippingMethodAdjustment" + adjustment_id: string + code: string +} +``` + +When the Medusa application receives this action type, it removes the `ShippingMethodAdjustment` (or `OrderShippingMethodAdjustment`) with the specified ID in the `adjustment_id` property. + +Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.RemoveShippingMethodAdjustment/index.html.md) for details on the object’s properties. + +### `campaignBudgetExceeded` Action + +When the `campaignBudgetExceeded` action is returned, the promotions within a campaign can no longer be used as the campaign budget has been exceeded. + +This action has the following format: + +```ts +export interface CampaignBudgetExceededAction { + action: "campaignBudgetExceeded" + code: string +} +``` + +Refer to [this reference](https://docs.medusajs.com/references/promotion/interfaces/promotion.CampaignBudgetExceededAction/index.html.md) for details on the object’s properties. + + +# Application Method + +In this document, you'll learn what an application method is. + +## What is an Application Method? + +The [ApplicationMethod data model](https://docs.medusajs.com/references/promotion/models/ApplicationMethod/index.html.md) defines how a promotion is applied: + +|Property|Purpose| +|---|---| +|\`type\`|Does the promotion discount a fixed amount or a percentage?| +|\`target\_type\`|Is the promotion applied on a cart item, shipping method, or the entire order?| +|\`allocation\`|Is the discounted amount applied on each item or split between the applicable items?| + +## Target Promotion Rules + +When the promotion is applied to a cart item or a shipping method, you can restrict which items/shipping methods the promotion is applied to. + +The `ApplicationMethod` data model has a collection of `PromotionRule` records to restrict which items or shipping methods the promotion applies to. The `target_rules` property represents this relation. + +![A diagram showcasing the target\_rules relation between the ApplicationMethod and PromotionRule data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709898273/Medusa%20Resources/application-method-target-rules_hqaymz.jpg) + +In this example, the promotion is only applied on products in the cart having the SKU `SHIRT`. + +*** + +## Buy Promotion Rules + +When the promotion’s type is `buyget`, you must specify the “buy X” condition. For example, a cart must have two shirts before the promotion can be applied. + +The application method has a collection of `PromotionRule` items to define the “buy X” rule. The `buy_rules` property represents this relation. + +![A diagram showcasing the buy\_rules relation between the ApplicationMethod and PromotionRule data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709898453/Medusa%20Resources/application-method-buy-rules_djjuhw.jpg) + +In this example, the cart must have two products with the SKU `SHIRT` for the promotion to be applied. + + +# Transactions + +In this document, you’ll learn about an order’s transactions and its use. + +## What is a Transaction? + +A transaction represents any order payment process, such as capturing or refunding an amount. It’s represented by the [OrderTransaction data model](https://docs.medusajs.com/references/order/models/OrderTransaction/index.html.md). + +The transaction’s main purpose is to ensure a correct balance between paid and outstanding amounts. + +Transactions are also associated with returns, claims, and exchanges if additional payment or refund is required. + +*** + +## Checking Outstanding Amount + +The order’s total amounts are stored in the `OrderSummary`'s `totals` property, which is a JSON object holding the total details of the order. + +```json +{ + "totals": { + "total": 30, + "subtotal": 30, + // ... + } +} +``` + +To check the outstanding amount of the order, its transaction amounts are summed. Then, the following conditions are checked: + +|Condition|Result| +|---|---|---| +|summary’s total - transaction amounts total = 0|There’s no outstanding amount.| +|summary’s total - transaction amounts total > 0|The customer owes additional payment to the merchant.| +|summary’s total - transaction amounts total \< 0|The merchant owes the customer a refund.| + +*** + +## Transaction Reference + +The Order Module doesn’t provide payment processing functionalities, so it doesn’t store payments that can be processed. Payment functionalities are provided by the [Payment Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/index.html.md). + +The `OrderTransaction` data model has two properties that determine which data model and record holds the actual payment’s details: + +- `reference`: indicates the table’s name in the database. For example, `payment` from the Payment Module. +- `reference_id`: indicates the ID of the record in the table. For example, `pay_123`. + + +# Promotion Concepts + +In this guide, you’ll learn about the main promotion and rule concepts in the Promotion Module. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/index.html.md) to learn how to manage promotions using the dashboard. + +## What is a Promotion? + +A promotion, represented by the [Promotion data model](https://docs.medusajs.com/references/promotion/models/Promotion/index.html.md), is a discount that can be applied on cart items, shipping methods, or entire orders. + +A promotion has two types: + +- `standard`: A standard promotion with rules. +- `buyget`: “A buy X get Y” promotion with rules. + +|\`standard\`|\`buyget\`| +|---|---| +|A coupon code that gives customers 10% off their entire order.|Buy two shirts and get another for free.| +|A coupon code that gives customers $15 off any shirt in their order.|Buy two shirts and get 10% off the entire order.| +|A discount applied automatically for VIP customers that removes 10% off their shipping method’s amount.|Spend $100 and get free shipping.| + +The Medusa Admin UI may not provide a way to create each of these promotion examples. However, they are supported by the Promotion Module and Medusa's workflows and API routes. + +*** + +## Promotion Rules + +A promotion can be restricted by a set of rules, each rule is represented by the [PromotionRule data model](https://docs.medusajs.com/references/promotion/models/PromotionRule/index.html.md). + +For example, you can create a promotion that only customers of the `VIP` customer group can use. + +![A diagram showcasing the relation between Promotion and PromotionRule](https://res.cloudinary.com/dza7lstvk/image/upload/v1709833196/Medusa%20Resources/promotion-promotion-rule_msbx0w.jpg) + +A `PromotionRule`'s `attribute` property indicates the property's name to which this rule is applied. For example, `customer_group_id`. + +The expected value for the attribute is stored in the `PromotionRuleValue` data model. So, a rule can have multiple values. + +When testing whether a promotion can be applied to a cart, the rule's `attribute` property and its values are tested on the cart itself. + +For example, the cart's customer must be part of the customer group(s) indicated in the promotion rule's value. + +### Flexible Rules + +The `PromotionRule`'s `operator` property adds more flexibility to the rule’s condition rather than simple equality (`eq`). + +For example, to restrict the promotion to only `VIP` and `B2B` customer groups: + +- Add a `PromotionRule` record with its `attribute` property set to `customer_group_id` and `operator` property to `in`. +- Add two `PromotionRuleValue` records associated with the rule: one with the value `VIP` and the other `B2B`. + +![A diagram showcasing the relation between PromotionRule and PromotionRuleValue when a rule has multiple values](https://res.cloudinary.com/dza7lstvk/image/upload/v1709897383/Medusa%20Resources/promotion-promotion-rule-multiple_hctpmt.jpg) + +In this case, a customer’s group must be in the `VIP` and `B2B` set of values to use the promotion. + +*** + +## How to Apply Rules on a Promotion? + +### Using Workflows + +If you're managing promotions using [Medusa's workflows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/medusa-workflows-reference/index.html.md) or the API routes that use them, you can specify rules for the promotion or its [application method](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/application-method/index.html.md). + +For example, if you're creating a promotion using the [createPromotionsWorkflow](https://docs.medusajs.com/resources/references/medusa-workflows/createPromotionsWorkflow/index.html.md): + +```ts +const { result } = await createPromotionsWorkflow(container) + .run({ + input: { + promotionsData: [{ + code: "10OFF", + type: "standard", + status: "active", + application_method: { + type: "percentage", + target_type: "items", + allocation: "across", + value: 10, + currency_code: "usd", + }, + rules: [ + { + attribute: "customer.group.id", + operator: "eq", + values: [ + "cusgrp_123", + ], + }, + ], + }], + }, + }) +``` + +In this example, the promotion is restricted to customers with the `cusgrp_123` customer group. + +### Using Promotion Module's Service + +For most use cases, it's recommended to use [workflows](#using-workflows) instead of directly using the module's service. + +If you're managing promotions using the Promotion Module's service, you can specify rules for the promotion or its [application method](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/application-method/index.html.md) in its methods. + +For example, if you're creating a promotion with the [createPromotions](https://docs.medusajs.com/resources/references/promotion/createPromotions/index.html.md) method: + +```ts +const promotions = await promotionModuleService.createPromotions([ + { + code: "50OFF", + type: "standard", + status: "active", + application_method: { + type: "percentage", + target_type: "items", + value: 50, + }, + rules: [ + { + attribute: "customer.group.id", + operator: "eq", + values: [ + "cusgrp_123", + ], + }, + ], + }, +]) +``` + +In this example, the promotion is restricted to customers with the `cusgrp_123` customer group. + +### How is the Promotion Rule Applied? + +A promotion is applied on a resource if its attributes match the promotion's rules. + +For example, consider you have the following promotion with a rule that restricts the promotion to a specific customer: + +```json +{ + "code": "10OFF", + "type": "standard", + "status": "active", + "application_method": { + "type": "percentage", + "target_type": "items", + "allocation": "across", + "value": 10, + "currency_code": "usd" + }, + "rules": [ + { + "attribute": "customer_id", + "operator": "eq", + "values": [ + "cus_123" + ] + } + ] +} +``` + +When you try to apply this promotion on a cart, the cart's `customer_id` is compared to the promotion rule's value based on the specified operator. So, the promotion will only be applied if the cart's `customer_id` is equal to `cus_123`. + + +# Links between Promotion Module and Other Modules + +This document showcases the module links defined between the Promotion Module and other Commerce Modules. + +## Summary + +The Promotion Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Cart|Promotion|Stored - many-to-many|Learn more| +|LineItemAdjustment|Promotion|Read-only - has one|Learn more| +|Order|Promotion|Stored - many-to-many|Learn more| + +*** + +## Cart Module + +A promotion can be applied on line items and shipping methods of a cart. Medusa defines a link between the `Cart` and `Promotion` data models. + +![A diagram showcasing an example of how data models from the Cart and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711538015/Medusa%20Resources/cart-promotion_kuh9vm.jpg) + +Medusa also defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItemAdjustment` data model and the `Promotion` data model. Because the link is read-only from the `LineItemAdjustment`'s side, you can only retrieve the promotion applied on a line item, and not the other way around. + +### Retrieve with Query + +To retrieve the carts that a promotion is applied on with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `carts.*` in `fields`: + +To retrieve the promotion of a line item adjustment, pass `promotion.*` in `fields`. + +### query.graph + +```ts +const { data: promotions } = await query.graph({ + entity: "promotion", + fields: [ + "carts.*", + ], +}) + +// promotions[0].carts +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: promotions } = useQueryGraphStep({ + entity: "promotion", + fields: [ + "carts.*", + ], +}) + +// promotions[0].carts +``` + +### Manage with Link + +To manage the promotions of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.CART]: { + cart_id: "cart_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.CART]: { + cart_id: "cart_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + +*** + +## Order Module + +An order is associated with the promotion applied on it. Medusa defines a link between the `Order` and `Promotion` data models. + +![A diagram showcasing an example of how data models from the Order and Promotion modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716555015/Medusa%20Resources/order-promotion_dgjzzd.jpg) + +### Retrieve with Query + +To retrieve the orders a promotion is applied on with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `orders.*` in `fields`: + +### query.graph + +```ts +const { data: promotions } = await query.graph({ + entity: "promotion", + fields: [ + "orders.*", + ], +}) + +// promotions[0].orders +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: promotions } = useQueryGraphStep({ + entity: "promotion", + fields: [ + "orders.*", + ], +}) + +// promotions[0].orders +``` + +### Manage with Link + +To manage the promotion of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PROMOTION]: { + promotion_id: "promo_123", + }, +}) +``` + + +# Campaign + +In this document, you'll learn about campaigns. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/promotions/campaigns/index.html.md) to learn how to manage campaigns using the dashboard. + +## What is a Campaign? + +A [Campaign](https://docs.medusajs.com/references/promotion/models/Campaign/index.html.md) combines promotions under the same conditions, such as start and end dates. + +![A diagram showcasing the relation between the Campaign and Promotion data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709899225/Medusa%20Resources/campagin-promotion_hh3qsi.jpg) + +*** + +## Campaign Limits + +Each campaign has a budget represented by the [CampaignBudget data model](https://docs.medusajs.com/references/promotion/models/CampaignBudget/index.html.md). The budget limits how many times the promotion can be used. + +There are two types of budgets: + +- `spend`: An amount that, when crossed, the promotion becomes unusable. For example, if the amount limit is set to `$100`, and the total amount of usage of this promotion crosses that threshold, the promotion can no longer be applied. +- `usage`: The number of times that a promotion can be used. For example, if the usage limit is set to `10`, the promotion can be used only 10 times by customers. After that, it can no longer be applied. + +![A diagram showcasing the relation between the Campaign and CampaignBudget data models](https://res.cloudinary.com/dza7lstvk/image/upload/v1709899463/Medusa%20Resources/campagin-budget_rvqlmi.jpg) + + +# Links between Region Module and Other Modules + +This document showcases the module links defined between the Region Module and other Commerce Modules. + +## Summary + +The Region Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Cart|Region|Read-only - has one|Learn more| +|Order|Region|Read-only - has one|Learn more| +|Region|PaymentProvider|Stored - many-to-many|Learn more| + +*** + +## Cart Module + +Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `Region` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the region of a cart, and not the other way around. + +### Retrieve with Query + +To retrieve the region of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: + +### query.graph + +```ts +const { data: carts } = await query.graph({ + entity: "cart", + fields: [ + "region.*", + ], +}) + +// carts[0].region +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: carts } = useQueryGraphStep({ + entity: "cart", + fields: [ + "region.*", + ], +}) + +// carts[0].region +``` + +*** + +## Order Module + +Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `Region` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the region of an order, and not the other way around. + +### Retrieve with Query + +To retrieve the region of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `region.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "region.*", + ], +}) + +// orders[0].region +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "region.*", + ], +}) + +// orders[0].region +``` + +*** + +## Payment Module + +You can specify for each region which payment providers are available for use. + +Medusa defines a module link between the `PaymentProvider` and the `Region` data models. + +![A diagram showcasing an example of how resources from the Payment and Region modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711569520/Medusa%20Resources/payment-region_jyo2dz.jpg) + +### Retrieve with Query + +To retrieve the payment providers of a region with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `payment_providers.*` in `fields`: + +### query.graph + +```ts +const { data: regions } = await query.graph({ + entity: "region", + fields: [ + "payment_providers.*", + ], +}) + +// regions[0].payment_providers +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: regions } = useQueryGraphStep({ + entity: "region", + fields: [ + "payment_providers.*", + ], +}) + +// regions[0].payment_providers +``` + +### Manage with Link + +To manage the payment providers in a region, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.REGION]: { + region_id: "reg_123", + }, + [Modules.PAYMENT]: { + payment_provider_id: "pp_stripe_stripe", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.REGION]: { + region_id: "reg_123", + }, + [Modules.PAYMENT]: { + payment_provider_id: "pp_stripe_stripe", + }, +}) +``` + + +# Links between Product Module and Other Modules + +This document showcases the module links defined between the Product Module and other Commerce Modules. + +## Summary + +The Product Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|LineItem|Product|Read-only - has one|Learn more| +|Product|ShippingProfile|Stored - many-to-one|Learn more| +|ProductVariant|InventoryItem|Stored - many-to-many|Learn more| +|OrderLineItem|Product|Read-only - has one|Learn more| +|ProductVariant|PriceSet|Stored - one-to-one|Learn more| +|Product|SalesChannel|Stored - many-to-many|Learn more| + +*** + +## Cart Module + +Medusa defines read-only links between: + +- The [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItem` data model and the `Product` data model. Because the link is read-only from the `LineItem`'s side, you can only retrieve the product of a line item, and not the other way around. +- The `ProductVariant` data model and the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `LineItem` data model. Because the link is read-only from the `LineItem`'s side, you can only retrieve the variant of a line item, and not the other way around. + +### Retrieve with Query + +To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: + +To retrieve the product, pass `product.*` in `fields`. + +### query.graph + +```ts +const { data: lineItems } = await query.graph({ + entity: "line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems[0].variant +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: lineItems } = useQueryGraphStep({ + entity: "line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems[0].variant +``` + +*** + +## Fulfillment Module + +Medusa defines a link between the `Product` data model and the `ShippingProfile` data model of the Fulfillment Module. Each product must belong to a shipping profile. + +This link is introduced in [Medusa v2.5.0](https://github.com/medusajs/medusa/releases/tag/v2.5.0). + +### Retrieve with Query + +To retrieve the shipping profile of a product with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `shipping_profile.*` in `fields`: + +### query.graph + +```ts +const { data: products } = await query.graph({ + entity: "product", + fields: [ + "shipping_profile.*", + ], +}) + +// products[0].shipping_profile +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: products } = useQueryGraphStep({ + entity: "product", + fields: [ + "shipping_profile.*", + ], +}) + +// products[0].shipping_profile +``` + +### Manage with Link + +To manage the shipping profile of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.FULFILLMENT]: { + shipping_profile_id: "sp_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.FULFILLMENT]: { + shipping_profile_id: "sp_123", + }, +}) +``` + +*** + +## Inventory Module + +The Inventory Module provides inventory-management features for any stock-kept item. + +Medusa defines a link between the `ProductVariant` and `InventoryItem` data models. Each product variant has different inventory details. + +![A diagram showcasing an example of how data models from the Product and Inventory modules are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709652779/Medusa%20Resources/product-inventory_kmjnud.jpg) + +When the `manage_inventory` property of a product variant is enabled, you can manage the variant's inventory in different locations through this relation. + +Learn more about product variant's inventory management in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). + +### Retrieve with Query + +To retrieve the inventory items of a product variant with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `inventory_items.*` in `fields`: + +### query.graph + +```ts +const { data: variants } = await query.graph({ + entity: "variant", + fields: [ + "inventory_items.*", + ], +}) + +// variants[0].inventory_items +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: variants } = useQueryGraphStep({ + entity: "variant", + fields: [ + "inventory_items.*", + ], +}) + +// variants[0].inventory_items +``` + +### Manage with Link + +To manage the inventory items of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.INVENTORY]: { + inventory_item_id: "iitem_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.INVENTORY]: { + inventory_item_id: "iitem_123", + }, +}) +``` + +*** + +## Order Module + +Medusa defines read-only links between: + +- the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `OrderLineItem` data model and the `Product` data model. Because the link is read-only from the `OrderLineItem`'s side, you can only retrieve the product of an order line item, and not the other way around. +- the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `OrderLineItem` data model and the `ProductVariant` data model. Because the link is read-only from the `OrderLineItem`'s side, you can only retrieve the variant of an order line item, and not the other way around. + +### Retrieve with Query + +To retrieve the variant of a line item with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `variant.*` in `fields`: + +To retrieve the product, pass `product.*` in `fields`. + +### query.graph + +```ts +const { data: lineItems } = await query.graph({ + entity: "order_line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems[0].variant +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: lineItems } = useQueryGraphStep({ + entity: "order_line_item", + fields: [ + "variant.*", + ], +}) + +// lineItems[0].variant +``` + +*** + +## Pricing Module + +The Product Module doesn't provide pricing-related features. + +Instead, Medusa defines a link between the `ProductVariant` and the `PriceSet` data models. A product variant’s prices are stored belonging to a price set. + +![A diagram showcasing an example of how data models from the Pricing and Product Module are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651464/Medusa%20Resources/product-pricing_vlxsiq.jpg) + +So, to add prices for a product variant, create a price set and add the prices to it. + +### Retrieve with Query + +To retrieve the price set of a variant with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `price_set.*` in `fields`: + +### query.graph + +```ts +const { data: variants } = await query.graph({ + entity: "variant", + fields: [ + "price_set.*", + ], +}) + +// variants[0].price_set +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: variants } = useQueryGraphStep({ + entity: "variant", + fields: [ + "price_set.*", + ], +}) + +// variants[0].price_set +``` + +### Manage with Link + +To manage the price set of a variant, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + variant_id: "variant_123", + }, + [Modules.PRICING]: { + price_set_id: "pset_123", + }, +}) +``` + +*** + +## Sales Channel Module + +The Sales Channel Module provides functionalities to manage multiple selling channels in your store. + +Medusa defines a link between the `Product` and `SalesChannel` data models. A product can have different availability in different sales channels. + +![A diagram showcasing an example of how data models from the Product and Sales Channel modules are linked.](https://res.cloudinary.com/dza7lstvk/image/upload/v1709651840/Medusa%20Resources/product-sales-channel_t848ik.jpg) + +### Retrieve with Query + +To retrieve the sales channels of a product with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: + +### query.graph + +```ts +const { data: products } = await query.graph({ + entity: "product", + fields: [ + "sales_channels.*", + ], +}) + +// products[0].sales_channels +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: products } = useQueryGraphStep({ + entity: "product", + fields: [ + "sales_channels.*", + ], +}) + +// products[0].sales_channels +``` + +### Manage with Link + +To manage the sales channels of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + + +# Product Variant Inventory + +# Product Variant Inventory + +In this guide, you'll learn about the inventory management features related to product variants. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/products/variants#manage-product-variant-inventory/index.html.md) to learn how to manage inventory of product variants. + +## Configure Inventory Management of Product Variants + +A product variant, represented by the [ProductVariant](https://docs.medusajs.com/references/product/models/ProductVariant/index.html.md) data model, has a `manage_inventory` field that's disabled by default. This field indicates whether you'll manage the inventory quantity of the product variant in the Medusa application. You can also keep `manage_inventory` disabled if you manage the product's inventory in an external system, such as an ERP. + +The Product Module doesn't provide inventory-management features. Instead, the Medusa application uses the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) to manage inventory for products and variants. When `manage_inventory` is disabled, the Medusa application always considers the product variant to be in stock. This is useful if your product's variants aren't items that can be stocked, such as digital products, or they don't have a limited stock quantity. + +When `manage_inventory` is enabled, the Medusa application tracks the inventory of the product variant using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md). For example, when a customer purchases a product variant, the Medusa application decrements the stocked quantity of the product variant. + +*** + +## How the Medusa Application Manages Inventory + +When a product variant has `manage_inventory` enabled, the Medusa application creates an inventory item using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md) and links it to the product variant. + +![Diagram showcasing the link between a product variant and its inventory item](https://res.cloudinary.com/dza7lstvk/image/upload/v1709652779/Medusa%20Resources/product-inventory_kmjnud.jpg) + +The inventory item has one or more locations, called inventory levels, that represent the stock quantity of the product variant at a specific location. This allows you to manage inventory across multiple warehouses, such as a warehouse in the US and another in Europe. + +![Diagram showcasing the link between a variant and its inventory item, and the inventory item's level.](https://res.cloudinary.com/dza7lstvk/image/upload/v1738580390/Medusa%20Resources/variant-inventory-level_bbee2t.jpg) + +Learn more about inventory concepts in the [Inventory Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/concepts/index.html.md). + +The Medusa application represents and manages stock locations using the [Stock Location Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md). It creates a read-only link between the `InventoryLevel` and `StockLocation` data models so that it can retrieve the stock location of an inventory level. + +![Diagram showcasing the read-only link between an inventory level and a stock location](https://res.cloudinary.com/dza7lstvk/image/upload/v1738582163/Medusa%20Resources/inventory-level-stock_amxfg5.jpg) + +Learn more about the Stock Location Module in the [Stock Location Module's documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/concepts/index.html.md). + +### Product Inventory in Storefronts + +When a storefront sends a request to the Medusa application, it must always pass a [publishable API key](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md) in the request header. This API key specifies the sales channels, available through the [Sales Channel Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md), of the storefront. + +The Medusa application links sales channels to stock locations, indicating the locations available for a specific sales channel. So, all inventory-related operations are scoped by the sales channel and its associated stock locations. + +For example, the availability of a product variant is determined by the `stocked_quantity` of its inventory level at the stock location linked to the storefront's sales channel. + +![Diagram showcasing the overall relations between inventory, stock location, and sales channel concepts](https://res.cloudinary.com/dza7lstvk/image/upload/v1738582163/Medusa%20Resources/inventory-stock-sales_fknoxw.jpg) + +*** + +## Variant Back Orders + +Product variants have an `allow_backorder` field that's disabled by default. When enabled, the Medusa application allows customers to purchase the product variant even when it's out of stock. Use this when your product variant is available through on-demand or pre-order purchase. + +You can also allow customers to subscribe to restock notifications of a product variant as explained in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/recipes/commerce-automation/restock-notification/index.html.md). + +*** + +## Additional Resources + +The following guides provide more details on inventory management in the Medusa application: + +- [Inventory Kits in the Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/inventory-kit/index.html.md): Learn how you can implement bundled or multi-part products through the Inventory Module. +- [Retrieve Product Variant Inventory Quantity](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/guides/variant-inventory/index.html.md): Learn how to retrieve the available inventory quantity of a product variant. +- [Configure Selling Products](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/selling-products/index.html.md): Learn how to use inventory management to support different use cases when selling products. +- [Inventory in Flows](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/inventory-in-flows/index.html.md): Learn how Medusa utilizes inventory management in different flows. +- [Storefront guide: how to retrieve a product variant's inventory details](https://docs.medusajs.com/resources/storefront-development/products/inventory/index.html.md). + + +# Configure Selling Products + +In this guide, you'll learn how to set up and configure your products based on their shipping and inventory requirements, the product type, how you want to sell them, or your commerce ecosystem. + +The concepts in this guide are applicable starting from Medusa v2.5.1. + +## Scenario + +Businesses can have different selling requirements: + +1. They may sell physical or digital items. +2. They may sell items that don't require shipping or inventory management, such as selling digital products, services, or booking appointments. +3. They may sell items whose inventory is managed by an external system, such as an ERP. + +Medusa supports these different selling requirements by allowing you to configure shipping and inventory requirements for products and their variants. This guide explains how these configurations work, then provides examples of setting up different use cases. + +*** + +## Configuring Shipping Requirements + +The Medusa application defines a link between the `Product` data model and a [ShippingProfile](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/concepts#shipping-profile/index.html.md) in the [Fulfillment Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/fulfillment/index.html.md), allowing you to associate a product with a shipping profile. + +When a product is associated with a shipping profile, its variants require shipping and fulfillment when purchased. This is useful for physical products or digital products that require custom fulfillment. + +If a product doesn't have an associated shipping profile, its variants don't require shipping and fulfillment when purchased. This is useful for digital products, for example, that don't require shipping. + +### Overriding Shipping Requirements for Variants + +A product variant whose inventory is managed by Medusa (its `manage_inventory` property is enabled) has an [inventory item](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/concepts#inventoryitem/index.html.md). The inventory item has a `requires_shipping` property that can be used to override its shipping requirement. This is useful if the product has an associated shipping profile but you want to disable shipping for a specific variant, or vice versa. + +Learn more about product variant's inventory in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/variant-inventory/index.html.md). + +When a product variant is purchased, the Medusa application decides whether the purchased item requires shipping in the following order: + +1. The product variant has an inventory item. In this case, the Medusa application uses the inventory item's `requires_shipping` property to determine if the item requires shipping. +2. If the product variant doesn't have an inventory item, the Medusa application checks whether the product has an associated shipping profile to determine if the item requires shipping. + +*** + +## Use Case Examples + +By combining configurations of shipment requirements and inventory management, you can set up your products to support your use case: + +|Use Case|Configurations|Example| +|---|---|---|---|---| +|Item that's shipped on purchase, and its variant inventory is managed by the Medusa application.||Any stock-kept item (clothing, for example), whose inventory is managed in the Medusa application.| +|Item that's shipped on purchase, but its variant inventory is managed externally (not by Medusa) or it has infinite stock.||Any stock-kept item (clothing, for example), whose inventory is managed in an ERP or has infinite stock.| +|Item that's not shipped on purchase, but its variant inventory is managed by Medusa.||Digital products, such as licenses, that don't require shipping but have a limited quantity.| +|Item that doesn't require shipping and its variant inventory isn't managed by Medusa.||| + + +# Links between Stock Location Module and Other Modules + +This document showcases the module links defined between the Stock Location Module and other Commerce Modules. + +## Summary + +The Stock Location Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|FulfillmentSet|StockLocation|Stored - many-to-one|Learn more| +|FulfillmentProvider|StockLocation|Stored - many-to-many|Learn more| +|InventoryLevel|StockLocation|Read-only - has many|Learn more| +|SalesChannel|StockLocation|Stored - many-to-many|Learn more| + +*** + +## Fulfillment Module + +A fulfillment set can be conditioned to a specific stock location. + +Medusa defines a link between the `FulfillmentSet` and `StockLocation` data models. + +![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1712567101/Medusa%20Resources/fulfillment-stock-location_nlkf7e.jpg) + +Medusa also defines a link between the `FulfillmentProvider` and `StockLocation` data models to indicate the providers that can be used in a location. + +![A diagram showcasing an example of how data models from the Fulfillment and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1728399492/Medusa%20Resources/fulfillment-provider-stock-location_b0mulo.jpg) + +### Retrieve with Query + +To retrieve the fulfillment sets of a stock location with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `fulfillment_sets.*` in `fields`: + +To retrieve the fulfillment providers, pass `fulfillment_providers.*` in `fields`. + +### query.graph + +```ts +const { data: stockLocations } = await query.graph({ + entity: "stock_location", + fields: [ + "fulfillment_sets.*", + ], +}) + +// stockLocations[0].fulfillment_sets +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: stockLocations } = useQueryGraphStep({ + entity: "stock_location", + fields: [ + "fulfillment_sets.*", + ], +}) + +// stockLocations[0].fulfillment_sets +``` + +### Manage with Link + +To manage the stock location of a fulfillment set, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.STOCK_LOCATION]: { + stock_location_id: "sloc_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_set_id: "fset_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.STOCK_LOCATION]: { + stock_location_id: "sloc_123", + }, + [Modules.FULFILLMENT]: { + fulfillment_set_id: "fset_123", + }, +}) +``` + +*** + +## Inventory Module + +Medusa defines a read-only link between the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md)'s `InventoryLevel` data model and the `StockLocation` data model. Because the link is read-only from the `InventoryLevel`'s side, you can only retrieve the stock location of an inventory level, and not the other way around. + +### Retrieve with Query + +To retrieve the stock locations of an inventory level with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `stock_locations.*` in `fields`: + +### query.graph + +```ts +const { data: inventoryLevels } = await query.graph({ + entity: "inventory_level", + fields: [ + "stock_locations.*", + ], +}) + +// inventoryLevels[0].stock_locations +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: inventoryLevels } = useQueryGraphStep({ + entity: "inventory_level", + fields: [ + "stock_locations.*", + ], +}) + +// inventoryLevels[0].stock_locations +``` + +*** + +## Sales Channel Module + +A stock location is associated with a sales channel. This scopes inventory quantities in a stock location by the associated sales channel. + +Medusa defines a link between the `SalesChannel` and `StockLocation` data models. + +![A diagram showcasing an example of how resources from the Sales Channel and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716796872/Medusa%20Resources/sales-channel-location_cqrih1.jpg) + +### Retrieve with Query + +To retrieve the sales channels of a stock location with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channels.*` in `fields`: + +### query.graph + +```ts +const { data: stockLocations } = await query.graph({ + entity: "stock_location", + fields: [ + "sales_channels.*", + ], +}) + +// stockLocations[0].sales_channels +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: stockLocations } = useQueryGraphStep({ + entity: "stock_location", + fields: [ + "sales_channels.*", + ], +}) + +// stockLocations[0].sales_channels +``` + +### Manage with Link + +To manage the stock locations of a sales channel, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, + [Modules.STOCK_LOCATION]: { + sales_channel_id: "sloc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, + [Modules.STOCK_LOCATION]: { + sales_channel_id: "sloc_123", + }, +}) +``` + + +# Stock Location Concepts + +In this document, you’ll learn about the main concepts in the Stock Location Module. + +## Stock Location + +A stock location, represented by the `StockLocation` data model, represents a location where stock items are kept. For example, a warehouse. + +Medusa uses stock locations to provide inventory details, from the Inventory Module, per location. + +*** + +## StockLocationAddress + +The `StockLocationAddress` data model belongs to the `StockLocation` data model. It provides more detailed information of the location, such as country code or street address. + + +# Publishable API Keys with Sales Channels + +In this document, you’ll learn what publishable API keys are and how to use them with sales channels. + +## Publishable API Keys with Sales Channels + +A publishable API key, provided by the API Key Module, is a client key scoped to one or more sales channels. + +When sending a request to a Store API route, you must pass a publishable API key in the header of the request: + +```bash +curl http://localhost:9000/store/products \ + x-publishable-api-key: {your_publishable_api_key} +``` + +The Medusa application infers the associated sales channels and ensures that only data relevant to the sales channel are used. + +*** + +## How to Create a Publishable API Key? + +To create a publishable API key, either use the [Medusa Admin](https://docs.medusajs.com/user-guide/settings/developer/publishable-api-keys/index.html.md) or the [Admin API Routes](https://docs.medusajs.com/api/admin#publishable-api-keys). + +*** + +## Access Sales Channels in Custom Store API Routes + +If you create an API route under the `/store` prefix, you can access the sales channels associated with the request's publishable API key using the `publishable_key_context` property of the request object. + +For example: + +```ts +import { MedusaStoreRequest, MedusaResponse } from "@medusajs/framework/http" +import { getVariantAvailability } from "@medusajs/framework/utils" + +export async function GET( + req: MedusaStoreRequest, + res: MedusaResponse +) { + const query = req.scope.resolve("query") + const sales_channel_ids = req.publishable_key_context.sales_channel_ids + + res.json({ + sales_channel_id: sales_channel_ids[0], + }) +} +``` + +In this example, you retrieve the scope's sales channel IDs using `req.publishable_key_context.sales_channel_ids`, whose value is an array of IDs. + +You can then use these IDs based on your business logic. For example, you can retrieve the sales channels' details using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). + +Notice that the request object's type is `MedusaStoreRequest` instead of `MedusaRequest` to ensure the availability of the `publishable_key_context` property. + + +# Links between Sales Channel Module and Other Modules + +This document showcases the module links defined between the Sales Channel Module and other Commerce Modules. + +## Summary + +The Sales Channel Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|ApiKey|SalesChannel|Stored - many-to-many|Learn more| +|Cart|SalesChannel|Read-only - has one|Learn more| +|Order|SalesChannel|Read-only - has one|Learn more| +|Product|SalesChannel|Stored - many-to-many|Learn more| +|SalesChannel|StockLocation|Stored - many-to-many|Learn more| + +*** + +## API Key Module + +A publishable API key allows you to easily specify the sales channel scope in a client request. + +Medusa defines a link between the `ApiKey` and the `SalesChannel` data models. + +![A diagram showcasing an example of how resources from the Sales Channel and API Key modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709812064/Medusa%20Resources/sales-channel-api-key_zmqi2l.jpg) + +### Retrieve with Query + +To retrieve the API keys associated with a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `publishable_api_keys.*` in `fields`: + +### query.graph + +```ts +const { data: salesChannels } = await query.graph({ + entity: "sales_channel", + fields: [ + "publishable_api_keys.*", + ], +}) + +// salesChannels[0].publishable_api_keys +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: salesChannels } = useQueryGraphStep({ + entity: "sales_channel", + fields: [ + "publishable_api_keys.*", + ], +}) + +// salesChannels[0].publishable_api_keys +``` + +### Manage with Link + +To manage the sales channels of an API key, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.API_KEY]: { + publishable_key_id: "apk_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.API_KEY]: { + publishable_key_id: "apk_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +*** + +## Cart Module + +Medusa defines a read-only link between the [Cart Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/cart/index.html.md)'s `Cart` data model and the `SalesChannel` data model. Because the link is read-only from the `Cart`'s side, you can only retrieve the sales channel of a cart, and not the other way around. + +### Retrieve with Query + +To retrieve the sales channel of a cart with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: + +### query.graph + +```ts +const { data: carts } = await query.graph({ + entity: "cart", + fields: [ + "sales_channel.*", + ], +}) + +// carts[0].sales_channel +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: carts } = useQueryGraphStep({ + entity: "cart", + fields: [ + "sales_channel.*", + ], +}) + +// carts[0].sales_channel +``` + +*** + +## Order Module + +Medusa defines a read-only link between the [Order Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/order/index.html.md)'s `Order` data model and the `SalesChannel` data model. Because the link is read-only from the `Order`'s side, you can only retrieve the sales channel of an order, and not the other way around. + +### Retrieve with Query + +To retrieve the sales channel of an order with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `sales_channel.*` in `fields`: + +### query.graph + +```ts +const { data: orders } = await query.graph({ + entity: "order", + fields: [ + "sales_channel.*", + ], +}) + +// orders.sales_channel +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "sales_channel.*", + ], +}) + +// orders.sales_channel +``` + +*** + +## Product Module + +A product has different availability for different sales channels. Medusa defines a link between the `Product` and the `SalesChannel` data models. + +![A diagram showcasing an example of how resources from the Sales Channel and Product modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709809833/Medusa%20Resources/product-sales-channel_t848ik.jpg) + +A product can be available in more than one sales channel. You can retrieve only the products of a sales channel. + +### Retrieve with Query + +To retrieve the products of a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `products.*` in `fields`: + +### query.graph + +```ts +const { data: salesChannels } = await query.graph({ + entity: "sales_channel", + fields: [ + "products.*", + ], +}) + +// salesChannels[0].products +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: salesChannels } = useQueryGraphStep({ + entity: "sales_channel", + fields: [ + "products.*", + ], +}) + +// salesChannels[0].products +``` + +### Manage with Link + +To manage the sales channels of a product, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.PRODUCT]: { + product_id: "prod_123", + }, + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, +}) +``` + +*** + +## Stock Location Module + +A stock location is associated with a sales channel. This scopes inventory quantities associated with that stock location by the associated sales channel. + +Medusa defines a link between the `SalesChannel` and `StockLocation` data models. + +![A diagram showcasing an example of how resources from the Sales Channel and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716796872/Medusa%20Resources/sales-channel-location_cqrih1.jpg) + +### Retrieve with Query + +To retrieve the stock locations of a sales channel with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `stock_locations.*` in `fields`: + +### query.graph + +```ts +const { data: salesChannels } = await query.graph({ + entity: "sales_channel", + fields: [ + "stock_locations.*", + ], +}) + +// salesChannels[0].stock_locations +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: salesChannels } = useQueryGraphStep({ + entity: "sales_channel", + fields: [ + "stock_locations.*", + ], +}) + +// salesChannels[0].stock_locations +``` + +### Manage with Link + +To manage the stock locations of a sales channel, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, + [Modules.STOCK_LOCATION]: { + sales_channel_id: "sloc_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.SALES_CHANNEL]: { + sales_channel_id: "sc_123", + }, + [Modules.STOCK_LOCATION]: { + sales_channel_id: "sloc_123", + }, +}) +``` + + +# Payment Module Options + +In this document, you'll learn about the options of the Payment Module. + +## All Module Options + +|Option|Description|Required|Default| +|---|---|---|---|---|---|---| +|\`webhook\_delay\`|A number indicating the delay in milliseconds before processing a webhook event.|No|\`5000\`| +|\`webhook\_retries\`|The number of times to retry the webhook event processing in case of an error.|No|\`3\`| +|\`providers\`|An array of payment providers to install and register. Learn more |No|-| + +*** + +## providers Option + +The `providers` option is an array of payment module providers. + +When the Medusa application starts, these providers are registered and can be used to process payments. + +For example: ```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + module.exports = defineConfig({ // ... modules: [ @@ -30408,7 +28952,1394 @@ module.exports = defineConfig({ resolve: "@medusajs/medusa/payment-stripe", id: "stripe", options: { - apiKey: process.env.STRIPE_API_KEY, + // ... + }, + }, + ], + }, + }, + ], +}) +``` + +The `providers` option is an array of objects that accept the following properties: + +- `resolve`: A string indicating the package name of the module provider or the path to it relative to the `src` directory. +- `id`: A string indicating the provider's unique name or ID. +- `options`: An optional object of the module provider's options. + + +# Account Holders and Saved Payment Methods + +In this documentation, you'll learn about account holders, and how they're used to save payment methods in third-party payment providers. + +Account holders are available starting from Medusa `v2.5.0`. + +## What's an Account Holder? + +An account holder represents a customer that can have saved payment methods in a third-party service. It's represented by the `AccountHolder` data model. + +It holds fields retrieved from the third-party provider, such as: + +- `external_id`: The ID of the equivalent customer or account holder in the third-party provider. +- `data`: Data returned by the payment provider when the account holder is created. + +A payment provider that supports saving payment methods for customers would create the equivalent of an account holder in the third-party provider. Then, whenever a payment method is saved, it would be saved under the account holder in the third-party provider. + +### Relation between Account Holder and Customer + +The Medusa application creates a link between the [Customer](https://docs.medusajs.com/references/customer/models/Customer/index.html.md) data model of the [Customer Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/customer/index.html.md) and the `AccountHolder` data model of the Payment Module. + +This link indicates that a customer can have more than one account holder, each representing saved payment methods in different payment providers. + +Learn more about this link in the [Link to Other Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/links-to-other-modules/index.html.md) guide. + +*** + +## Save Payment Methods + +If a payment provider supports saving payment methods for a customer, they must implement the following methods: + +- `createAccountHolder`: Creates an account holder in the payment provider. The Payment Module uses this method before creating the account holder in Medusa, and uses the returned data to set fields like `external_id` and `data` in the created `AccountHolder` record. +- `deleteAccountHolder`: Deletes an account holder in the payment provider. The Payment Module uses this method when an account holder is deleted in Medusa. +- `savePaymentMethod`: Saves a payment method for an account holder in the payment provider. +- `listPaymentMethods`: Lists saved payment methods in the third-party service for an account holder. This is useful when displaying the customer's saved payment methods in the storefront. + +Learn more about implementing these methods in the [Create Payment Provider guide](https://docs.medusajs.com/references/payment/provider/index.html.md). + +*** + +## Account Holder in Medusa Payment Flows + +In the Medusa application, when a payment session is created for a registered customer, the Medusa application uses the Payment Module to create an account holder for the customer. + +Consequently, the Payment Module uses the payment provider to create an account holder in the third-party service, then creates the account holder in Medusa. + +This flow is only supported if the chosen payment provider has implemented the necessary [save payment methods](#save-payment-methods). + + +# Payment + +In this document, you’ll learn what a payment is and how it's created, captured, and refunded. + +## What's a Payment? + +When a payment session is authorized, a payment, represented by the [Payment data model](https://docs.medusajs.com/references/payment/models/Payment/index.html.md), is created. This payment can later be captured or refunded. + +A payment carries many of the data and relations of a payment session: + +- It belongs to the same payment collection. +- It’s associated with the same payment provider, which handles further payment processing. +- It stores the payment session’s `data` property in its `data` property, as it’s still useful for the payment provider’s processing. + +*** + +## Capture Payments + +When a payment is captured, a capture, represented by the [Capture data model](https://docs.medusajs.com/references/payment/models/Capture/index.html.md), is created. It holds details related to the capture, such as the amount, the capture date, and more. + +The payment can also be captured incrementally, each time a capture record is created for that amount. + +![A diagram showcasing how a payment's multiple captures are stored](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565445/Medusa%20Resources/payment-capture_f5fve1.jpg) + +*** + +## Refund Payments + +When a payment is refunded, a refund, represented by the [Refund data model](https://docs.medusajs.com/references/payment/models/Refund/index.html.md), is created. It holds details related to the refund, such as the amount, refund date, and more. + +A payment can be refunded multiple times, and each time a refund record is created. + +![A diagram showcasing how a payment's multiple refunds are stored](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565555/Medusa%20Resources/payment-refund_lgfvyy.jpg) + +*** + +## data Property + +Payment providers may need additional data to process the payment later. For example, the ID of the associated payment in the third-party provider. + +The `Payment` data model has a `data` property used to store that data. The first time it's set is when the [payment provider in Medusa](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) authorizes the payment. + +Then, the `data` property is passed to the Medusa payment provider when the payment is captured or refunded, allowing the payment provider to utilize the data to process the payment with the third-party provider. + +If you're building a custom payment provider, learn more about authorizing and capturing the payments and setting the `data` property in the [Create Payment Provider](https://docs.medusajs.com/references/payment/provider/index.html.md) guide. + + +# Payment Steps in Checkout Flow + +In this guide, you'll learn about Medusa's accept payment flow that's used in checkout. + +## Overview of the Payment Flow in Checkout + +The Medusa application has a built-in payment flow that allows you to accept payments from customers, typically during checkout. + +This flow is designed to be flexible and extensible, allowing you to integrate with various payment providers. + +The payment flow consists of the following steps: + +![A diagram showcasing the payment flow's steps](https://res.cloudinary.com/dza7lstvk/image/upload/v1711566781/Medusa%20Resources/payment-flow_jblrvw.jpg) + +- [Create Payment Collection](https://docs.medusajs.com/api/store#payment-collections_postpaymentcollections): Create a payment collection associated with a cart. + - This payment collection will hold all details related to the payment operations. +- [Show Payment Providers](https://docs.medusajs.com/api/store#payment-providers_getpaymentproviders): Show the customer the available payment providers to choose from. + - You can integrate any [payment provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md), and you can enable them per region. +- [Create and Initialize Payment Session](https://docs.medusajs.com/api/store#payment-collections_postpaymentcollectionsidpaymentsessions): Create a payment session for the selected payment provider in the Medusa application, and initialize the session in the third-party payment provider. +- [Complete Cart](https://docs.medusajs.com/api/store#carts_postcartsidcomplete): Once the customer places the order, complete the cart, which involves: + - Authorizing the payment session with the third-party payment provider. + - If the third-party payment provider requires performing additional actions, show them to the customer, then retry cart completion. + +*** + +## Implement Payment Checkout Step in Storefront + +If you're using the [Next.js Starter Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md), the checkout flow is already implemented with the payment step. + +If you're building a custom storefront, or you want to customize the checkout flow, you can follow the [Checkout in Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/index.html.md) guide to learn how to build the checkout flow in the storefront, including the payment step. + +*** + +{/* TODO add section on customizng the payment flow */} + +## Build a Custom Payment Flow + +You can also build a custom payment flow using workflows or the Payment Module's main service. + +Refer to the [Accept Payment Flow](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-flow/index.html.md) guide to learn more. + + +# Accept Payment in Checkout Flow + +In this guide, you'll learn how to implement it using workflows or the Payment Module. + +## Why Implement the Payment Flow? + +Medusa already provides a built-in payment flow that allows you to accept payments from customers, which you can learn about in the [Accept Payment Flow in Checkout](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-checkout-flow/index.html.md) guide. + +You may need to implement a custom payment flow if you have a different use case, or you're using the Payment Module separately from the Medusa application. + +This guide will help you understand how to implement a payment flow using the Payment Module's main service or workflows. + +You can also follow this guide to get a general understanding of how the payment flow works in the Medusa application. + +*** + +## How to Implement the Accept Payment Flow? + +For a guide on how to implement this flow in the storefront, check out [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/payment/index.html.md). + +It's highly recommended to use Medusa's workflows to implement this flow. Use the Payment Module's main service for more complex cases. + +### 1. Create a Payment Collection + +A payment collection holds all details related to a resource’s payment operations. So, you start off by creating a payment collection. + +In the Medusa application, you associate the payment collection with a cart, which is the resource that the customer is trying to pay for. + +For example: + +### Using Workflow + +```ts +import { createPaymentCollectionForCartWorkflow } from "@medusajs/medusa/core-flows" + +// ... + +await createPaymentCollectionForCartWorkflow(container) + .run({ + input: { + cart_id: "cart_123", + }, + }) +``` + +### Using Service + +```ts +const paymentCollection = + await paymentModuleService.createPaymentCollections({ + currency_code: "usd", + amount: 5000, + }) +``` + +### 2. Show Payment Providers + +Next, you'll show the customer the available payment providers to choose from. + +In the Medusa application, you need to use [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) to retrieve the available payment providers in a region. + +### Using Query + +```ts +const query = container.resolve("query") + +const { data: regionPaymentProviders } = await query.graph({ + entryPoint: "region_payment_provider", + variables: { + filters: { + region_id: "reg_123", + }, + }, + fields: ["payment_providers.*"], +}) + +const paymentProviders = regionPaymentProviders.map( + (relation) => relation.payment_providers +) +``` + +### Using Service + +```ts +const paymentProviders = await paymentModuleService.listPaymentProviders() +``` + +### 3. Create Payment Sessions + +The payment collection has one or more payment sessions, each being a payment amount to be authorized by a payment provider. + +So, once the customer selects a payment provider, create a payment session for the selected payment provider. + +This will also initialize the payment session in the third-party payment provider. + +For example: + +### Using Workflow + +```ts +import { createPaymentSessionsWorkflow } from "@medusajs/medusa/core-flows" + +// ... + +const { result: paymentSesion } = await createPaymentSessionsWorkflow(container) + .run({ + input: { + payment_collection_id: "paycol_123", + provider_id: "pp_stripe_stripe", + }, + }) +``` + +### Using Service + +```ts +const paymentSession = + await paymentModuleService.createPaymentSession( + paymentCollection.id, + { + provider_id: "pp_stripe_stripe", + currency_code: "usd", + amount: 5000, + data: { + // any necessary data for the + // payment provider + }, + } + ) +``` + +### 4. Authorize Payment Session + +Once the customer places the order, you need to authorize the payment session with the third-party payment provider. + +For example: + +### Using Step + +```ts +import { authorizePaymentSessionStep } from "@medusajs/medusa/core-flows" + +// ... + +authorizePaymentSessionStep({ + id: "payses_123", + context: {}, +}) +``` + +### Using Service + +```ts +const payment = authorizePaymentSessionStep({ + id: "payses_123", + context: {}, +}) +``` + +When the payment authorization is successful, a payment is created and returned. + +#### Handling Additional Action + +If you used the `authorizePaymentSessionStep`, you don't need to implement this logic as it's implemented in the step. + +If the payment authorization isn’t successful, whether because it requires additional action or for another reason, the method updates the payment session with the new status and throws an error. + +In that case, you can catch that error and, if the session's `status` property is `requires_more`, handle the additional action, then retry the authorization. + +For example: + +```ts +try { + const payment = + await paymentModuleService.authorizePaymentSession( + paymentSession.id, + {} + ) +} catch (e) { + // retrieve the payment session again + const updatedPaymentSession = ( + await paymentModuleService.listPaymentSessions({ + id: [paymentSession.id], + }) + )[0] + + if (updatedPaymentSession.status === "requires_more") { + // TODO perform required action + // TODO authorize payment again. + } +} +``` + +### 5. Payment Flow Complete + +The payment flow is complete once the payment session is authorized and the payment is created. + +You can then: + +- Complete the cart using the [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) if you're using the Medusa application. +- Capture the payment either using the [capturePaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/capturePaymentWorkflow/index.html.md) or [capturePayment method](https://docs.medusajs.com/references/payment/capturePayment/index.html.md). +- Refund captured amounts using the [refundPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentWorkflow/index.html.md) or [refundPayment method](https://docs.medusajs.com/references/payment/refundPayment/index.html.md). + +Some payment providers allow capturing the payment automatically once it’s authorized. In that case, you don’t need to do it manually. + + +# Links between Payment Module and Other Modules + +This document showcases the module links defined between the Payment Module and other Commerce Modules. + +## Summary + +The Payment Module has the following links to other modules: + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|Cart|PaymentCollection|Stored - one-to-one|Learn more| +|Customer|AccountHolder|Stored - many-to-many|Learn more| +|Order|PaymentCollection|Stored - one-to-many|Learn more| +|OrderClaim|PaymentCollection|Stored - one-to-many|Learn more| +|OrderExchange|PaymentCollection|Stored - one-to-many|Learn more| +|Region|PaymentProvider|Stored - many-to-many|Learn more| + +*** + +## Cart Module + +The Cart Module provides cart-related features, but not payment processing. + +Medusa defines a link between the `Cart` and `PaymentCollection` data models. A cart has a payment collection which holds all the authorized payment sessions and payments made related to the cart. + +Learn more about this relation in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-collection#usage-with-the-cart-module/index.html.md). + +### Retrieve with Query + +To retrieve the cart associated with the payment collection with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `cart.*` in `fields`: + +### query.graph + +```ts +const { data: paymentCollections } = await query.graph({ + entity: "payment_collection", + fields: [ + "cart.*", + ], +}) + +// paymentCollections[0].cart +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: paymentCollections } = useQueryGraphStep({ + entity: "payment_collection", + fields: [ + "cart.*", + ], +}) + +// paymentCollections[0].cart +``` + +### Manage with Link + +To manage the payment collection of a cart, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.CART]: { + cart_id: "cart_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.CART]: { + cart_id: "cart_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +*** + +## Customer Module + +Medusa defines a link between the `Customer` and `AccountHolder` data models, allowing payment providers to save payment methods for a customer, if the payment provider supports it. + +This link is available starting from Medusa `v2.5.0`. + +### Retrieve with Query + +To retrieve the customer associated with an account holder with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `customer.*` in `fields`: + +### query.graph + +```ts +const { data: accountHolders } = await query.graph({ + entity: "account_holder", + fields: [ + "customer.*", + ], +}) + +// accountHolders[0].customer +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: accountHolders } = useQueryGraphStep({ + entity: "account_holder", + fields: [ + "customer.*", + ], +}) + +// accountHolders[0].customer +``` + +### Manage with Link + +To manage the account holders of a customer, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.CUSTOMER]: { + customer_id: "cus_123", + }, + [Modules.PAYMENT]: { + account_holder_id: "acchld_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.CUSTOMER]: { + customer_id: "cus_123", + }, + [Modules.PAYMENT]: { + account_holder_id: "acchld_123", + }, +}) +``` + +*** + +## Order Module + +An order's payment details are stored in a payment collection. This also applies for claims and exchanges. + +So, Medusa defines links between the `PaymentCollection` data model and the `Order`, `OrderClaim`, and `OrderExchange` data models. + +![A diagram showcasing an example of how data models from the Order and Payment modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716554726/Medusa%20Resources/order-payment_ubdwok.jpg) + +### Retrieve with Query + +To retrieve the order of a payment collection with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `order.*` in `fields`: + +### query.graph + +```ts +const { data: paymentCollections } = await query.graph({ + entity: "payment_collection", + fields: [ + "order.*", + ], +}) + +// paymentCollections[0].order +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: paymentCollections } = useQueryGraphStep({ + entity: "payment_collection", + fields: [ + "order.*", + ], +}) + +// paymentCollections[0].order +``` + +### Manage with Link + +To manage the payment collections of an order, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.ORDER]: { + order_id: "order_123", + }, + [Modules.PAYMENT]: { + payment_collection_id: "paycol_123", + }, +}) +``` + +*** + +## Region Module + +You can specify for each region which payment providers are available. The Medusa application defines a link between the `PaymentProvider` and the `Region` data models. + +![A diagram showcasing an example of how resources from the Payment and Region modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1711569520/Medusa%20Resources/payment-region_jyo2dz.jpg) + +This increases the flexibility of your store. For example, you only show during checkout the payment providers associated with the cart's region. + +### Retrieve with Query + +To retrieve the regions of a payment provider with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `regions.*` in `fields`: + +### query.graph + +```ts +const { data: paymentProviders } = await query.graph({ + entity: "payment_provider", + fields: [ + "regions.*", + ], +}) + +// paymentProviders[0].regions +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: paymentProviders } = useQueryGraphStep({ + entity: "payment_provider", + fields: [ + "regions.*", + ], +}) + +// paymentProviders[0].regions +``` + +### Manage with Link + +To manage the payment providers in a region, use [Link](https://docs.medusajs.com/docs/learn/fundamentals/module-links/link/index.html.md): + +### link.create + +```ts +import { Modules } from "@medusajs/framework/utils" + +// ... + +await link.create({ + [Modules.REGION]: { + region_id: "reg_123", + }, + [Modules.PAYMENT]: { + payment_provider_id: "pp_stripe_stripe", + }, +}) +``` + +### createRemoteLinkStep + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createRemoteLinkStep } from "@medusajs/medusa/core-flows" + +// ... + +createRemoteLinkStep({ + [Modules.REGION]: { + region_id: "reg_123", + }, + [Modules.PAYMENT]: { + payment_provider_id: "pp_stripe_stripe", + }, +}) +``` + + +# Payment Module Provider + +In this guide, you’ll learn about the Payment Module Provider and how it's used. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/regions/index.html.md) to learn how to manage the payment providers available in a region using the dashboard. + +*** + +## What is a Payment Module Provider? + +The Payment Module Provider handles payment processing in the Medusa application. It integrates third-party payment services, such as [Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md). + +To authorize a payment amount with a payment provider, a payment session is created and associated with that payment provider. The payment provider is then used to handle the authorization. + +After the payment session is authorized, the payment provider is associated with the resulting payment and handles its payment processing, such as to capture or refund payment. + +![Diagram showcasing the communication between Medusa, the Payment Module Provider, and the third-party payment provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791374/Medusa%20Resources/payment-provider-service_l4zi6m.jpg) + +### List of Payment Module Providers + +- [Stripe](https://docs.medusajs.com/commerce-modules/payment/payment-provider/stripe/index.html.md) + +### Default Payment Provider + +The Payment Module provides a `system` payment provider that acts as a placeholder payment provider. + +It doesn’t handle payment processing and delegates that to the merchant. It acts similarly to a cash-on-delivery (COD) payment method. + +The identifier of the system payment provider is `pp_system`. + +*** + +## How to Create a Custom Payment Provider? + +A payment provider is a module whose main service extends the `AbstractPaymentProvider` imported from `@medusajs/framework/utils`. + +The module can have multiple payment provider services, where each is registered as a separate payment provider. + +Refer to [this guide](https://docs.medusajs.com/references/payment/provider/index.html.md) on how to create a payment provider for the Payment Module. + +After you create a payment provider, you can enable it as a payment provider in a region using the [Medusa Admin dashboard](https://docs.medusajs.com/user-guide/settings/regions/index.html.md). + +*** + +## How are Payment Providers Registered? + +### Configure Payment Module's Providers + +The Payment Module accepts a `providers` option that allows you to configure the providers registered in your application. + +Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/module-options/index.html.md) guide. + +### Registration on Application Start + +When the Medusa application starts, it registers the Payment Module Providers defined in the `providers` option of the Payment Module. + +For each Payment Module Provider, the Medusa application finds all payment provider services defined in them to register. + +### PaymentProvider Data Model + +A registered payment provider is represented by the [PaymentProvider data model](https://docs.medusajs.com/references/payment/models/PaymentProvider/index.html.md) in the Medusa application. + +![Diagram showcasing the PaymentProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791364/Medusa%20Resources/payment-provider-model_lx91oa.jpg) + +This data model is used to reference a service in the Payment Module Provider and determine whether it's installed in the application. + +The `PaymentProvider` data model has the following properties: + +- `id`: The unique identifier of the Payment Module Provider. The ID's format is `pp_{identifier}_{id}`, where: + - `identifier` is the value of the `identifier` property in the Payment Module Provider's service. + - `id` is the value of the `id` property of the Payment Module Provider in `medusa-config.ts`. +- `is_enabled`: A boolean indicating whether the payment provider is enabled. + +### How to Remove a Payment Provider? + +If you remove a payment provider from the `providers` option, the Medusa application will not remove the associated `PaymentProvider` data model record. + +Instead, the Medusa application will set the `is_enabled` property of the `PaymentProvider`'s record to `false`. This allows you to re-enable the payment provider later if needed by adding it back to the `providers` option. + + +# Payment Session + +In this document, you’ll learn what a payment session is. + +## What's a Payment Session? + +A payment session, represented by the [PaymentSession data model](https://docs.medusajs.com/references/payment/models/PaymentSession/index.html.md), is a payment amount to be authorized. It’s associated with a payment provider that handles authorizing it. + +A payment collection can have multiple payment sessions. Using this feature, you can implement payment in installments or payments using multiple providers. + +![Diagram showcasing how every payment session has a different payment provider](https://res.cloudinary.com/dza7lstvk/image/upload/v1711565056/Medusa%20Resources/payment-session-provider_guxzqt.jpg) + +*** + +## data Property + +Payment providers may need additional data to process the payment later. For example, the ID of the session in the third-party provider. + +The `PaymentSession` data model has a `data` property used to store that data. It's set by the [payment provider in Medusa](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) when the payment is initialized. + +Then, when the payment session is authorized, the `data` property is used by the payment provider in Medusa to process the payment with the third-party provider. + +If you're building a custom payment provider, learn more about initializing the payment session and setting the `data` property in the [Create Payment Provider](https://docs.medusajs.com/references/payment/provider/index.html.md) guide. + +### data Property in the Storefront + +This `data` property is accessible in the storefront as well. So, only store in it data that can be publicly shared, and data that is useful in the storefront. + +For example, you can also store the client token used to initialize the payment session in the storefront with the third-party provider. + +*** + +## Payment Session Status + +The `status` property of a payment session indicates its current status. Its value can be: + +- `pending`: The payment session is awaiting authorization. +- `requires_more`: The payment session requires an action before it’s authorized. For example, to enter a 3DS code. +- `authorized`: The payment session is authorized. +- `error`: An error occurred while authorizing the payment. +- `canceled`: The authorization of the payment session has been canceled. + + +# Payment Collection + +In this document, you’ll learn what a payment collection is and how the Medusa application uses it with the Cart Module. + +## What's a Payment Collection? + +A payment collection stores payment details related to a resource, such as a cart or an order. It’s represented by the [PaymentCollection data model](https://docs.medusajs.com/references/payment/models/PaymentCollection/index.html.md). + +Every purchase or request for payment starts with a payment collection. The collection holds details necessary to complete the payment, including: + +- The [payment sessions](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-session/index.html.md) that represents the payment amount to authorize. +- The [payments](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment/index.html.md) that are created when a payment session is authorized. They can be captured and refunded. +- The [payment providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/index.html.md) that handle the processing of each payment session, including the authorization, capture, and refund. + +*** + +## Multiple Payments + +The payment collection supports multiple payment sessions and payments. + +You can use this to accept payments in increments or split payments across payment providers. + +![Diagram showcasing how a payment collection can have multiple payment sessions and payments](https://res.cloudinary.com/dza7lstvk/image/upload/v1711554695/Medusa%20Resources/payment-collection-multiple-payments_oi3z3n.jpg) + +*** + +## Usage with the Cart Module + +The Cart Module provides cart management features. However, it doesn’t provide any features related to accepting payment. + +During checkout, the Medusa application links a cart to a payment collection, which will be used for further payment processing. + +It also implements the payment flow during checkout as explained in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-flow/index.html.md). + +![Diagram showcasing the relation between the Payment and Cart modules](https://res.cloudinary.com/dza7lstvk/image/upload/v1711537849/Medusa%20Resources/cart-payment_ixziqm.jpg) + + +# Tax Module Options + +In this guide, you'll learn about the options of the Tax Module. + +## providers + +The `providers` option is an array of either [tax module providers](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) or path to a file that defines a tax provider. + +When the Medusa application starts, these providers are registered and can be used to retrieve tax lines. + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/tax", + options: { + providers: [ + { + resolve: "./path/to/my-provider", + id: "my-provider", + options: { + // ... + }, + }, + ], + }, + }, + ], +}) +``` + +The objects in the array accept the following properties: + +- `resolve`: A string indicating the package name of the module provider or the path to it. +- `id`: A string indicating the provider's unique name or ID. +- `options`: An optional object of the module provider's options. + + +# Payment Webhook Events + +In this guide, you’ll learn how you can handle payment webhook events in your Medusa application and using the Payment Module. + +## What's a Payment Webhook Event? + +A payment webhook event is a request sent from a third-party payment provider to your application. It indicates a change in a payment’s status. + +This is useful in many cases such as: + +- When a payment is processed (authorized or captured) asynchronously. +- When a payment is managed on the third-party payment provider's side. +- When a payment action on the frontend was interrupted, leading the payment to be processed without an order being created in the Medusa application. + +So, it's essential to handle webhook events to ensure that your application is aware of updated payment statuses and can take appropriate actions. + +*** + +## How to Handle Payment Webhook Events + +### Webhook Listener API Route + +The Medusa application has a `/hooks/payment/[identifier]_[provider]` API route out-of-the-box that allows you to listen to webhook events from third-party payment providers, where: + +- `[identifier]` is the `identifier` static property defined in the payment provider. For example, `stripe`. +- `[provider]` is the ID of the provider. For example, `stripe`. + +For example, when integrating basic Stripe payments with the [Stripe Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/index.html.md), the webhook listener route is `/hooks/payment/stripe_stripe`. + +You can use this webhook listener when configuring webhook events in your third-party payment provider. + +### getWebhookActionAndData Method + +The webhook listener API route executes the [getWebhookActionAndData method](https://docs.medusajs.com/references/payment/getWebhookActionAndData/index.html.md) of the Payment Module's main service. This method delegates handling of incoming webhook events to the relevant payment provider. + +Payment providers have a similar [getWebhookActionAndData method](https://docs.medusajs.com/references/payment/provider/index.html.md) to process the webhook event. So, if you're implementing a custom payment provider, make sure to implement it to handle webhook events. + +![A diagram showcasing the steps of how the getWebhookActionAndData method words](https://res.cloudinary.com/dza7lstvk/image/upload/v1711567415/Medusa%20Resources/payment-webhook_seaocg.jpg) + +If the `getWebhookActionAndData` method returns an `authorized` or `captured` action, the Medusa application will perform one of the following actions: + +View the full flow of the webhook event processing in the [processPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/processPaymentWorkflow/index.html.md) reference. + +- If the method returns an `authorized` action, Medusa will set the associated payment session to `authorized`. +- If the method returns a `captured` action, Medusa will set the associated payment session to `captured`. +- In either cases, if the cart associated with the payment session is not completed yet, Medusa will complete the cart. + + +# Tax Module Provider + +In this guide, you’ll learn about the Tax Module Provider and how it's used. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md) to learn how to manage tax provider of a tax region using the dashboard. + +## What is a Tax Module Provider? + +The Tax Module Provider handles tax line calculations in the Medusa application. It integrates third-party tax services, such as TaxJar, or implements custom tax calculation logic. + +The Medusa application uses the Tax Module Provider whenever it needs to calculate tax lines for a cart or order, or when you [calculate the tax lines using the Tax Module's service](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-calculation-with-provider/index.html.md). + +![Diagram showcasing the communication between Medusa the Tax Module Provider, and the third-party tax provider.](https://res.cloudinary.com/dza7lstvk/image/upload/v1746790996/Medusa%20Resources/tax-provider-service_kcgpne.jpg) + +*** + +## Default Tax Provider + +The Tax Module provides a `system` tax provider that acts as a placeholder tax provider. It performs basic tax calculation, as you can see in the [Create Tax Module Provider](https://docs.medusajs.com/references/tax/provider#gettaxlines/index.html.md) guide. + +This provider is installed by default in your application and you can use it with tax regions. + +The identifier of the system tax provider is `tp_system`. + +*** + +## How to Create a Custom Tax Provider? + +A Tax Module Provider is a module whose service implements the `ITaxProvider` imported from `@medusajs/framework/types`. + +The module can have multiple tax provider services, where each are registered as separate tax providers. + +Refer to the [Create Tax Module Provider](https://docs.medusajs.com/references/tax/provider/index.html.md) guide to learn how to create a Tax Module Provider. + +After you create a tax provider, you can choose it as the default Tax Module Provider for a region in the [Medusa Admin dashboard](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md). + +*** + +## How are Tax Providers Registered? + +### Configure Tax Module's Providers + +The Tax Module accepts a `providers` option that allows you to configure the providers registered in your application. + +Learn more about this option in the [Module Options](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/module-options/index.html.md) guide. + +### Registration on Application Start + +When the Medusa application starts, it registers the Tax Module Providers defined in the `providers` option of the Tax Module. + +For each Tax Module Provider, the Medusa application finds all tax provider services defined in them to register. + +### TaxProvider Data Model + +A registered tax provider is represented by the [TaxProvider data model](https://docs.medusajs.com/references/tax/models/TaxProvider/index.html.md) in the Medusa application. + +This data model is used to reference a service in the Tax Module Provider and determine whether it's installed in the application. + +![Diagram showcasing the TaxProvider data model](https://res.cloudinary.com/dza7lstvk/image/upload/v1746791254/Medusa%20Resources/tax-provider-model_r6ktjw.jpg) + +The `TaxProvider` data model has the following properties: + +- `id`: The unique identifier of the tax provider. The ID's format is `tp_{identifier}_{id}`, where: + - `identifier` is the value of the `identifier` property in the Tax Module Provider's service. + - `id` is the value of the `id` property of the Tax Module Provider in `medusa-config.ts`. +- `is_enabled`: A boolean indicating whether the tax provider is enabled. + +### How to Remove a Tax Provider? + +You can remove a registered tax provider from the Medusa application by removing it from the `providers` option in the Tax Module's configuration. + +Then, the next time the Medusa application starts, it will set the `is_enabled` property of the `TaxProvider`'s record to `false`. This allows you to re-enable the tax provider later if needed by adding it back to the `providers` option. + + +# Tax Rates and Rules + +In this document, you’ll learn about tax rates and rules. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions#manage-tax-rate-overrides/index.html.md) to learn how to manage tax rates using the dashboard. + +## What are Tax Rates? + +A tax rate is a percentage amount used to calculate the tax amount for each taxable item’s price, such as line items or shipping methods, in a cart. The sum of all calculated tax amounts are then added to the cart’s total as a tax total. + +Each tax region has a default tax rate. This tax rate is applied to all taxable items of a cart in that region. + +### Combinable Tax Rates + +Tax regions can have parent tax regions. To inherit the tax rates of the parent tax region, set the `is_combinable` of the child’s tax rates to `true`. + +Then, when tax rates are retrieved for a taxable item in the child region, both the child and the parent tax regions’ applicable rates are returned. + +*** + +## Override Tax Rates with Rules + +You can create tax rates that override the default for specific conditions or rules. + +For example, you can have a default tax rate is 10%, but for products of type “Shirt” is %15. + +A tax region can have multiple tax rates, and each tax rate can have multiple tax rules. The [TaxRateRule data model](https://docs.medusajs.com/references/tax/models/TaxRateRule/index.html.md) represents a tax rate’s rule. + +![A diagram showcasing the relation between TaxRegion, TaxRate, and TaxRateRule](https://res.cloudinary.com/dza7lstvk/image/upload/v1711462167/Medusa%20Resources/tax-rate-rule_enzbp2.jpg) + +These two properties of the data model identify the rule’s target: + +- `reference`: the name of the table in the database that this rule points to. For example, `product_type`. +- `reference_id`: the ID of the data model’s record that this points to. For example, a product type’s ID. + +So, to override the default tax rate for product types “Shirt”, you create a tax rate and associate with it a tax rule whose `reference` is `product_type` and `reference_id` the ID of the “Shirt” product type. + + +# Tax Region + +In this document, you’ll learn about tax regions and how to use them with the Region Module. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/tax-regions/index.html.md) to learn how to manage tax regions using the dashboard. + +## What is a Tax Region? + +A tax region, represented by the [TaxRegion data model](https://docs.medusajs.com/references/tax/models/TaxRegion/index.html.md), stores tax settings related to a region that your store serves. + +Tax regions can inherit settings and rules from a parent tax region. + +*** + +## Tax Rules in a Tax Region + +Tax rules define the tax rates and behavior within a tax region. They specify: + +- The tax rate percentage. +- Which products the tax applies to. +- Other custom rules to determine tax applicability. + +Learn more about tax rules in the [Tax Rates and Rules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-rates-and-rules/index.html.md) guide. + +*** + +## Tax Provider + +Each tax region can have a default tax provider. The tax provider is responsible for calculating the tax lines for carts and orders in that region. + +You can use Medusa's default tax provider or create a custom one, allowing you to integrate with third-party tax services or implement your own tax calculation logic. + +Learn more about tax providers in the [Tax Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) guide. + + +# Tax Calculation with the Tax Provider + +In this guide, you’ll learn how tax lines are calculated using the tax provider. + +## Tax Lines Calculation + +Tax lines are calculated and retrieved using the [getTaxLines method of the Tax Module’s main service](https://docs.medusajs.com/references/tax/getTaxLines/index.html.md). It accepts an array of line items and shipping methods, and the context of the calculation. + +For example: + +```ts +const taxLines = await taxModuleService.getTaxLines( + [ + { + id: "cali_123", + product_id: "prod_123", + unit_price: 1000, + quantity: 1, + }, + { + id: "casm_123", + shipping_option_id: "so_123", + unit_price: 2000, + }, + ], + { + address: { + country_code: "us", + }, + } +) +``` + +The context object is used to determine which tax regions and rates to use in the calculation. It includes properties related to the address and customer. + +The example above retrieves the tax lines based on the tax region for the United States. + +The method returns tax lines for the line item and shipping methods. For example: + +```json +[ + { + "line_item_id": "cali_123", + "rate_id": "txr_1", + "rate": 10, + "code": "XXX", + "name": "Tax Rate 1" + }, + { + "shipping_line_id": "casm_123", + "rate_id": "txr_2", + "rate": 5, + "code": "YYY", + "name": "Tax Rate 2" + } +] +``` + +*** + +## Using the Tax Provider in the Calculation + +The tax lines retrieved by the `getTaxLines` method are actually retrieved from the tax region’s [Tax Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md). + +A tax module implements the logic to shape tax lines. Each tax region uses a tax provider. + +Learn more about tax providers, configuring, and creating them in the [Tax Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/tax/tax-provider/index.html.md) guide. + + +# User Module Options + +In this document, you'll learn about the options of the User Module. + +## Module Options + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/user", + options: { + jwt_secret: process.env.JWT_SECRET, + }, + }, + ], +}) +``` + +|Option|Description|Required| +|---|---|---|---|---| +|\`jwt\_secret\`|A string indicating the secret used to sign the invite tokens.|Yes| + +### Environment Variables + +Make sure to add the necessary environment variables for the above options in `.env`: + +```bash +JWT_SECRET=supersecret +``` + + +# Links between Store Module and Other Modules + +This document showcases the module links defined between the Store Module and other Commerce Modules. + +## Summary + +The Store Module has the following links to other modules: + +Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database. + +|First Data Model|Second Data Model|Type|Description| +|---|---|---|---| +|StoreCurrency|Currency|Read-only - has many|Learn more| + +*** + +## Currency Module + +The Store Module has a `Currency` data model that stores the supported currencies of a store. However, these currencies don't hold all the details of a currency, such as its name or symbol. + +Instead, Medusa defines a read-only link between the [Currency Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/currency/index.html.md)'s `Currency` data model and the Store Module's `StoreCurrency` data model. This means you can retrieve the details of a store's supported currencies, but you don't manage the links in a pivot table in the database. The currencies of a store are determined by the `currency_code` of the [Currency](https://docs.medusajs.com/references/store/models/Currency/index.html.md) data model in the Store Module (not in the Currency Module). + +### Retrieve with Query + +To retrieve the details of a store's currencies with [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), pass `supported_currencies.currency.*` in `fields`: + +### query.graph + +```ts +const { data: stores } = await query.graph({ + entity: "store", + fields: [ + "supported_currencies.currency.*", + ], +}) + +// stores[0].supported_currencies +``` + +### useQueryGraphStep + +```ts +import { useQueryGraphStep } from "@medusajs/medusa/core-flows" + +// ... + +const { data: stores } = useQueryGraphStep({ + entity: "store", + fields: [ + "supported_currencies.currency.*", + ], +}) + +// stores[0].supported_currencies +``` + + +# User Creation Flows + +In this document, learn the different ways to create a user using the User Module. + +Refer to this [Medusa Admin User Guide](https://docs.medusajs.com/user-guide/settings/users/index.html.md) to learn how to manage users using the dashboard. + +## Straightforward User Creation + +To create a user, use the [create method of the User Module’s main service](https://docs.medusajs.com/references/user/create/index.html.md): + +```ts +const user = await userModuleService.createUsers({ + email: "user@example.com", +}) +``` + +You can pair this with the Auth Module to allow the user to authenticate, as explained in a [later section](#create-identity-with-the-auth-module). + +*** + +## Invite Users + +To create a user, you can create an invite for them using the [createInvites method](https://docs.medusajs.com/references/user/createInvites/index.html.md) of the User Module's main service: + +```ts +const invite = await userModuleService.createInvites({ + email: "user@example.com", +}) +``` + +Later, you can accept the invite and create a new user for them: + +```ts +const invite = + await userModuleService.validateInviteToken("secret_123") + +await userModuleService.updateInvites({ + id: invite.id, + accepted: true, +}) + +const user = await userModuleService.createUsers({ + email: invite.email, +}) +``` + +### Invite Expiry + +An invite has an expiry date. You can renew the expiry date and refresh the token using the [refreshInviteTokens method](https://docs.medusajs.com/references/user/refreshInviteTokens/index.html.md): + +```ts +await userModuleService.refreshInviteTokens(["invite_123"]) +``` + +*** + +## Create Identity with the Auth Module + +By combining the User and Auth Modules, you can use the Auth Module for authenticating users, and the User Module to manage those users. + +So, when a user is authenticated, and you receive the `AuthIdentity` object, you can use it to create a user if it doesn’t exist: + +```ts +const { success, authIdentity } = + await authModuleService.authenticate("emailpass", { + // ... + }) + +const [, count] = await userModuleService.listAndCountUsers({ + email: authIdentity.entity_id, +}) + +if (!count) { + const user = await userModuleService.createUsers({ + email: authIdentity.entity_id, + }) +} +``` + + +# GitHub Auth Module Provider + +In this document, you’ll learn about the GitHub Auth Module Provider and how to install and use it in the Auth Module. + +The Github Auth Module Provider authenticates users with their GitHub account. + +Learn about the authentication flow in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route/index.html.md). + +*** + +## Register the Github Auth Module Provider + +### Prerequisites + +- [Register GitHub App. When setting the Callback URL, set it to a URL in your frontend that later uses Medusa's callback route to validate the authentication.](https://docs.github.com/en/apps/creating-github-apps/setting-up-a-github-app/creating-a-github-app) +- [Retrieve the client ID and client secret of your GitHub App](https://docs.github.com/en/rest/authentication/authenticating-to-the-rest-api?apiVersion=2022-11-28#using-basic-authentication) + +Add the module to the array of providers passed to the Auth Module: + +```ts title="medusa-config.ts" +import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/auth", + dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], + options: { + providers: [ + // other providers... + { + resolve: "@medusajs/medusa/auth-github", + id: "github", + options: { + clientId: process.env.GITHUB_CLIENT_ID, + clientSecret: process.env.GITHUB_CLIENT_SECRET, + callbackUrl: process.env.GITHUB_CALLBACK_URL, }, }, ], @@ -30422,92 +30353,335 @@ module.exports = defineConfig({ Make sure to add the necessary environment variables for the above options in `.env`: -```bash -STRIPE_API_KEY= +```plain +GITHUB_CLIENT_ID= +GITHUB_CLIENT_SECRET= +GITHUB_CALLBACK_URL= ``` ### Module Options -|Option|Description|Required|Default| +|Configuration|Description|Required| +|---|---|---|---|---| +|\`clientId\`|A string indicating the client ID of your GitHub app.|Yes| +|\`clientSecret\`|A string indicating the client secret of your GitHub app.|Yes| +|\`callbackUrl\`|A string indicating the URL to redirect to in your frontend after the user completes their authentication in GitHub.|Yes| + +*** + +## Override Callback URL During Authentication + +In many cases, you may have different callback URL for actor types. For example, you may redirect admin users to a different URL than customers after authentication. + +The [Authenticate or Login API Route](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md) can accept a `callback_url` body parameter to override the provider's `callbackUrl` option. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md). + +*** + +## Examples + +- [How to implement third-party / social login in the storefront.](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/third-party-login/index.html.md). + + +# Google Auth Module Provider + +In this document, you’ll learn about the Google Auth Module Provider and how to install and use it in the Auth Module. + +The Google Auth Module Provider authenticates users with their Google account. + +Learn about the authentication flow for third-party providers in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#2-third-party-service-authenticate-flow/index.html.md). + +*** + +## Register the Google Auth Module Provider + +### Prerequisites + +- [Create a project in Google Cloud.](https://cloud.google.com/resource-manager/docs/creating-managing-projects) +- [Create authorization credentials. When setting the Redirect Uri, set it to a URL in your frontend that later uses Medusa's callback route to validate the authentication.](https://developers.google.com/identity/protocols/oauth2/web-server#creatingcred) + +Add the module to the array of providers passed to the Auth Module: + +```ts title="medusa-config.ts" +import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + // ... + [Modules.AUTH]: { + resolve: "@medusajs/medusa/auth", + dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], + options: { + providers: [ + // other providers... + { + resolve: "@medusajs/medusa/auth-google", + id: "google", + options: { + clientId: process.env.GOOGLE_CLIENT_ID, + clientSecret: process.env.GOOGLE_CLIENT_SECRET, + callbackUrl: process.env.GOOGLE_CALLBACK_URL, + }, + }, + ], + }, + }, + }, + ], +}) +``` + +### Environment Variables + +Make sure to add the necessary environment variables for the above options in `.env`: + +```plain +GOOGLE_CLIENT_ID= +GOOGLE_CLIENT_SECRET= +GOOGLE_CALLBACK_URL= +``` + +### Module Options + +|Configuration|Description|Required| +|---|---|---|---|---| +|\`clientId\`|A string indicating the |Yes| +|\`clientSecret\`|A string indicating the |Yes| +|\`callbackUrl\`|A string indicating the URL to redirect to in your frontend after the user completes their authentication in Google.|Yes| + +*** + +*** + +## Override Callback URL During Authentication + +In many cases, you may have different callback URL for actor types. For example, you may redirect admin users to a different URL than customers after authentication. + +The [Authenticate or Login API Route](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md) can accept a `callback_url` body parameter to override the provider's `callbackUrl` option. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md). + +*** + +## Examples + +- [How to implement Google social login in the storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/third-party-login/index.html.md). + + +# Emailpass Auth Module Provider + +In this document, you’ll learn about the Emailpass auth module provider and how to install and use it in the Auth Module. + +Using the Emailpass auth module provider, you allow users to register and login with an email and password. + +*** + +## Register the Emailpass Auth Module Provider + +The Emailpass auth provider is registered by default with the Auth Module. + +If you want to pass options to the provider, add the provider to the `providers` option of the Auth Module: + +```ts title="medusa-config.ts" +import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/auth", + dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], + options: { + providers: [ + // other providers... + { + resolve: "@medusajs/medusa/auth-emailpass", + id: "emailpass", + options: { + // options... + }, + }, + ], + }, + }, + ], +}) +``` + +### Module Options + +|Configuration|Description|Required|Default| |---|---|---|---|---|---|---| -|\`apiKey\`|A string indicating the Stripe Secret API key.|Yes|-| -|\`webhookSecret\`|A string indicating the Stripe webhook secret. This is only useful for deployed Medusa applications.|Yes|-| -|\`capture\`|Whether to automatically capture payment after authorization.|No|\`false\`| -|\`automatic\_payment\_methods\`|A boolean value indicating whether to enable Stripe's automatic payment methods. This is useful if you integrate services like Apple pay or Google pay.|No|\`false\`| -|\`payment\_description\`|A string used as the default description of a payment if none is available in cart.context.payment\_description.|No|-| +|\`hashConfig\`|An object of configurations to use when hashing the user's +password. Refer to |No|\`\`\`ts +const hashConfig = \{ + logN: 15, + r: 8, + p: 1 +} +\`\`\`| *** -## Enable Stripe Providers in a Region +## Related Guides -Before customers can use Stripe to complete their purchases, you must enable the Stripe payment provider(s) in the region where you want to offer this payment method. +- [How to register a customer using email and password](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/register/index.html.md) -Refer to the [user guide](https://docs.medusajs.com/user-guide/settings/regions#edit-region-details/index.html.md) to learn how to edit a region and enable the Stripe payment provider. + +# Get Product Variant Inventory Quantity + +In this guide, you'll learn how to retrieve the available inventory quantity of a product variant in your Medusa application customizations. That includes API routes, workflows, subscribers, scheduled jobs, and any resource that can access the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). + +Refer to the [Retrieve Product Variant Inventory](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/products/inventory/index.html.md) storefront guide. + +## Understanding Product Variant Inventory Availability + +Product variants have a `manage_inventory` boolean field that indicates whether the Medusa application manages the inventory of the product variant. + +When `manage_inventory` is disabled, the Medusa application always considers the product variant to be in stock. So, you can't retrieve the inventory quantity for those products. + +When `manage_inventory` is enabled, the Medusa application tracks the inventory of the product variant using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md). For example, when a customer purchases a product variant, the Medusa application decrements the stocked quantity of the product variant. + +This guide explains how to retrieve the inventory quantity of a product variant when `manage_inventory` is enabled. *** -## Stripe Payment Provider IDs +## Retrieve Product Variant Inventory -When you register the Stripe Module Provider, it registers different providers, such as basic Stripe payment, Bancontact, and more. +To retrieve the inventory quantity of a product variant, use the `getVariantAvailability` utility function imported from `@medusajs/framework/utils`. It returns the available quantity of the product variant. -Each provider is registered and referenced by a unique ID made up of the format `pp_{identifier}_{id}`, where: +For example: -- `{identifier}` is the ID of the payment provider as defined in the Stripe Module Provider. -- `{id}` is the ID of the Stripe Module Provider as set in the `medusa-config.ts` file. For example, `stripe`. +```ts highlights={variantAvailabilityHighlights} +import { getVariantAvailability } from "@medusajs/framework/utils" -Assuming you set the ID of the Stripe Module Provider to `stripe` in `medusa-config.ts`, the Medusa application will register the following payment providers: +// ... -|Provider Name|Provider ID| -|---|---|---| -|Basic Stripe Payment|\`pp\_stripe\_stripe\`| -|Bancontact Payments|\`pp\_stripe-bancontact\_stripe\`| -|BLIK Payments|\`pp\_stripe-blik\_stripe\`| -|giropay Payments|\`pp\_stripe-giropay\_stripe\`| -|iDEAL Payments|\`pp\_stripe-ideal\_stripe\`| -|Przelewy24 Payments|\`pp\_stripe-przelewy24\_stripe\`| -|PromptPay Payments|\`pp\_stripe-promptpay\_stripe\`| +// use req.scope instead of container in API routes +const query = container.resolve("query") + +const availability = await getVariantAvailability(query, { + variant_ids: ["variant_123"], + sales_channel_id: "sc_123", +}) +``` + +A product variant's inventory quantity is set per [stock location](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md). This stock location is linked to a [sales channel](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md). + +So, to retrieve the inventory quantity of a product variant using `getVariantAvailability`, you need to also provide the ID of the sales channel to retrieve the inventory quantity in. + +Refer to the [Retrieve Sales Channel to Use](#retrieve-sales-channel-to-use) section to learn how to retrieve the sales channel ID to use in the `getVariantAvailability` function. + +### Parameters + +The `getVariantAvailability` function accepts the following parameters: + +- query: (Query) Instance of Query to retrieve the necessary data. +- options: (\`object\`) The options to retrieve the variant availability. + + - variant\_ids: (\`string\[]\`) The IDs of the product variants to retrieve their inventory availability. + + - sales\_channel\_id: (\`string\`) The ID of the sales channel to retrieve the variant availability in. + +### Returns + +The `getVariantAvailability` function resolves to an object whose keys are the IDs of each product variant passed in the `variant_ids` parameter. + +The value of each key is an object with the following properties: + +- availability: (\`number\`) The available quantity of the product variant in the stock location linked to the sales channel. If \`manage\_inventory\` is disabled, this value is \`0\`. +- sales\_channel\_id: (\`string\`) The ID of the sales channel that the availability is scoped to. + +For example, the object may look like this: + +```json title="Example result" +{ + "variant_123": { + "availability": 10, + "sales_channel_id": "sc_123" + } +} +``` *** -## Setup Stripe Webhooks +## Retrieve Sales Channel to Use -For production applications, you must set up webhooks in Stripe that inform Medusa of changes and updates to payments. Refer to [Stripe's documentation](https://docs.stripe.com/webhooks#add-a-webhook-endpoint) on how to setup webhooks. +To retrieve the sales channel ID to use in the `getVariantAvailability` function, you can either: -### Webhook URL +- Use the sales channel of the request's scope. +- Use the sales channel that the variant's product is available in. -Medusa has a `{server_url}/hooks/payment/{provider_id}` API route that you can use to register webhooks in Stripe, where: +### Method 1: Use Sales Channel Scope in Store Routes -- `{server_url}` is the URL to your deployed Medusa application in server mode. -- `{provider_id}` is the ID of the provider as explained in the [Stripe Payment Provider IDs](#stripe-payment-provider-ids) section, without the `pp_` prefix. +Requests sent to API routes starting with `/store` must include a [publishable API key in the request header](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md). This scopes the request to one or more sales channels associated with the publishable API key. -The Stripe Module Provider supports the following payment types, and the webhook endpoint URL is different for each: +So, if you're retrieving the variant inventory availability in an API route starting with `/store`, you can access the sales channel using the `publishable_key_context.sales_channel_ids` property of the request object: -|Stripe Payment Type|Webhook Endpoint URL| -|---|---|---| -|Basic Stripe Payment|\`\{server\_url}/hooks/payment/stripe\_stripe\`| -|Bancontact Payments|\`\{server\_url}/hooks/payment/stripe-bancontact\_stripe\`| -|BLIK Payments|\`\{server\_url}/hooks/payment/stripe-blik\_stripe\`| -|giropay Payments|\`\{server\_url}/hooks/payment/stripe-giropay\_stripe\`| -|iDEAL Payments|\`\{server\_url}/hooks/payment/stripe-ideal\_stripe\`| -|Przelewy24 Payments|\`\{server\_url}/hooks/payment/stripe-przelewy24\_stripe\`| -|PromptPay Payments|\`\{server\_url}/hooks/payment/stripe-promptpay\_stripe\`| +```ts highlights={salesChannelScopeHighlights} +import { MedusaStoreRequest, MedusaResponse } from "@medusajs/framework/http" +import { getVariantAvailability } from "@medusajs/framework/utils" -### Webhook Events +export async function GET( + req: MedusaStoreRequest, + res: MedusaResponse +) { + const query = req.scope.resolve("query") + const sales_channel_ids = req.publishable_key_context.sales_channel_ids -When you set up the webhook in Stripe, choose the following events to listen to: + const availability = await getVariantAvailability(query, { + variant_ids: ["variant_123"], + sales_channel_id: sales_channel_ids[0], + }) -- `payment_intent.amount_capturable_updated` -- `payment_intent.succeeded` -- `payment_intent.payment_failed` + res.json({ + availability, + }) +} +``` -*** +In this example, you retrieve the scope's sales channel IDs using `req.publishable_key_context.sales_channel_ids`, whose value is an array of IDs. -## Useful Guides +Then, you pass the first sales channel ID to the `getVariantAvailability` function to retrieve the inventory availability of the product variant in that sales channel. -- [Storefront guide: Add Stripe payment method during checkout](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/payment/stripe/index.html.md). -- [Integrate in Next.js Starter](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter#stripe-integration/index.html.md). -- [Customize Stripe Integration in Next.js Starter](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/guides/customize-stripe/index.html.md). -- [Add Saved Payment Methods with Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/how-to-tutorials/tutorials/saved-payment-methods/index.html.md). +Notice that the request object's type is `MedusaStoreRequest` instead of `MedusaRequest` to ensure the availability of the `publishable_key_context` property. + +### Method 2: Use Product's Sales Channel + +A product is linked to the sales channels it's available in. So, you can retrieve the details of the variant's product, including its sales channels. + +For example: + +```ts highlights={productSalesChannelHighlights} +import { getVariantAvailability } from "@medusajs/framework/utils" + +// ... + +// use req.scope instead of container in API routes +const query = container.resolve("query") + +const { data: variants } = await query.graph({ + entity: "variant", + fields: ["id", "product.sales_channels.*"], + filters: { + id: "variant_123", + }, +}) + +const availability = await getVariantAvailability(query, { + variant_ids: ["variant_123"], + sales_channel_id: variants[0].product!.sales_channels![0]!.id, +}) +``` + +In this example, you retrieve the sales channels of the variant's product using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). + +You pass the ID of the variant as a filter, and you specify `product.sales_channels.*` as the fields to retrieve. This retrieves the sales channels linked to the variant's product. + +Then, you pass the first sales channel ID to the `getVariantAvailability` function to retrieve the inventory availability of the product variant in that sales channel. # Calculate Product Variant Price with Taxes @@ -30695,388 +30869,214 @@ For each product variant, you: - `priceWithoutTax`: The variant's price without taxes applied. -# Get Product Variant Inventory Quantity +# Stripe Module Provider -In this guide, you'll learn how to retrieve the available inventory quantity of a product variant in your Medusa application customizations. That includes API routes, workflows, subscribers, scheduled jobs, and any resource that can access the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). +In this document, you’ll learn about the Stripe Module Provider and how to configure it in the Payment Module. -Refer to the [Retrieve Product Variant Inventory](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/products/inventory/index.html.md) storefront guide. +Your technical team must install the Stripe Module Provider in your Medusa application first. Then, refer to [this user guide](https://docs.medusajs.com/user-guide/settings/regions#edit-region-details/index.html.md) to learn how to enable the Stripe payment provider in a region using the Medusa Admin dashboard. -## Understanding Product Variant Inventory Availability +## Register the Stripe Module Provider -Product variants have a `manage_inventory` boolean field that indicates whether the Medusa application manages the inventory of the product variant. +### Prerequisites -When `manage_inventory` is disabled, the Medusa application always considers the product variant to be in stock. So, you can't retrieve the inventory quantity for those products. +- [Stripe account](https://stripe.com/) +- [Stripe Secret API Key](https://support.stripe.com/questions/locate-api-keys-in-the-dashboard) +- [For deployed Medusa applications, a Stripe webhook secret. Refer to the end of this guide for details on the URL and events.](https://docs.stripe.com/webhooks#add-a-webhook-endpoint) -When `manage_inventory` is enabled, the Medusa application tracks the inventory of the product variant using the [Inventory Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/inventory/index.html.md). For example, when a customer purchases a product variant, the Medusa application decrements the stocked quantity of the product variant. +The Stripe Module Provider is installed by default in your application. To use it, add it to the array of providers passed to the Payment Module in `medusa-config.ts`: -This guide explains how to retrieve the inventory quantity of a product variant when `manage_inventory` is enabled. - -*** - -## Retrieve Product Variant Inventory - -To retrieve the inventory quantity of a product variant, use the `getVariantAvailability` utility function imported from `@medusajs/framework/utils`. It returns the available quantity of the product variant. - -For example: - -```ts highlights={variantAvailabilityHighlights} -import { getVariantAvailability } from "@medusajs/framework/utils" - -// ... - -// use req.scope instead of container in API routes -const query = container.resolve("query") - -const availability = await getVariantAvailability(query, { - variant_ids: ["variant_123"], - sales_channel_id: "sc_123", +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/payment", + options: { + providers: [ + { + resolve: "@medusajs/medusa/payment-stripe", + id: "stripe", + options: { + apiKey: process.env.STRIPE_API_KEY, + }, + }, + ], + }, + }, + ], }) ``` -A product variant's inventory quantity is set per [stock location](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/stock-location/index.html.md). This stock location is linked to a [sales channel](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/index.html.md). +### Environment Variables -So, to retrieve the inventory quantity of a product variant using `getVariantAvailability`, you need to also provide the ID of the sales channel to retrieve the inventory quantity in. +Make sure to add the necessary environment variables for the above options in `.env`: -Refer to the [Retrieve Sales Channel to Use](#retrieve-sales-channel-to-use) section to learn how to retrieve the sales channel ID to use in the `getVariantAvailability` function. - -### Parameters - -The `getVariantAvailability` function accepts the following parameters: - -- query: (Query) Instance of Query to retrieve the necessary data. -- options: (\`object\`) The options to retrieve the variant availability. - - - variant\_ids: (\`string\[]\`) The IDs of the product variants to retrieve their inventory availability. - - - sales\_channel\_id: (\`string\`) The ID of the sales channel to retrieve the variant availability in. - -### Returns - -The `getVariantAvailability` function resolves to an object whose keys are the IDs of each product variant passed in the `variant_ids` parameter. - -The value of each key is an object with the following properties: - -- availability: (\`number\`) The available quantity of the product variant in the stock location linked to the sales channel. If \`manage\_inventory\` is disabled, this value is \`0\`. -- sales\_channel\_id: (\`string\`) The ID of the sales channel that the availability is scoped to. - -For example, the object may look like this: - -```json title="Example result" -{ - "variant_123": { - "availability": 10, - "sales_channel_id": "sc_123" - } -} +```bash +STRIPE_API_KEY= ``` +### Module Options + +|Option|Description|Required|Default| +|---|---|---|---|---|---|---| +|\`apiKey\`|A string indicating the Stripe Secret API key.|Yes|-| +|\`webhookSecret\`|A string indicating the Stripe webhook secret. This is only useful for deployed Medusa applications.|Yes|-| +|\`capture\`|Whether to automatically capture payment after authorization.|No|\`false\`| +|\`automatic\_payment\_methods\`|A boolean value indicating whether to enable Stripe's automatic payment methods. This is useful if you integrate services like Apple pay or Google pay.|No|\`false\`| +|\`payment\_description\`|A string used as the default description of a payment if none is available in cart.context.payment\_description.|No|-| + *** -## Retrieve Sales Channel to Use +## Enable Stripe Providers in a Region -To retrieve the sales channel ID to use in the `getVariantAvailability` function, you can either: +Before customers can use Stripe to complete their purchases, you must enable the Stripe payment provider(s) in the region where you want to offer this payment method. -- Use the sales channel of the request's scope. -- Use the sales channel that the variant's product is available in. +Refer to the [user guide](https://docs.medusajs.com/user-guide/settings/regions#edit-region-details/index.html.md) to learn how to edit a region and enable the Stripe payment provider. -### Method 1: Use Sales Channel Scope in Store Routes +*** -Requests sent to API routes starting with `/store` must include a [publishable API key in the request header](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md). This scopes the request to one or more sales channels associated with the publishable API key. +## Stripe Payment Provider IDs -So, if you're retrieving the variant inventory availability in an API route starting with `/store`, you can access the sales channel using the `publishable_key_context.sales_channel_ids` property of the request object: +When you register the Stripe Module Provider, it registers different providers, such as basic Stripe payment, Bancontact, and more. -```ts highlights={salesChannelScopeHighlights} -import { MedusaStoreRequest, MedusaResponse } from "@medusajs/framework/http" -import { getVariantAvailability } from "@medusajs/framework/utils" +Each provider is registered and referenced by a unique ID made up of the format `pp_{identifier}_{id}`, where: -export async function GET( - req: MedusaStoreRequest, - res: MedusaResponse -) { - const query = req.scope.resolve("query") - const sales_channel_ids = req.publishable_key_context.sales_channel_ids +- `{identifier}` is the ID of the payment provider as defined in the Stripe Module Provider. +- `{id}` is the ID of the Stripe Module Provider as set in the `medusa-config.ts` file. For example, `stripe`. - const availability = await getVariantAvailability(query, { - variant_ids: ["variant_123"], - sales_channel_id: sales_channel_ids[0], - }) +Assuming you set the ID of the Stripe Module Provider to `stripe` in `medusa-config.ts`, the Medusa application will register the following payment providers: - res.json({ - availability, - }) -} -``` +|Provider Name|Provider ID| +|---|---|---| +|Basic Stripe Payment|\`pp\_stripe\_stripe\`| +|Bancontact Payments|\`pp\_stripe-bancontact\_stripe\`| +|BLIK Payments|\`pp\_stripe-blik\_stripe\`| +|giropay Payments|\`pp\_stripe-giropay\_stripe\`| +|iDEAL Payments|\`pp\_stripe-ideal\_stripe\`| +|Przelewy24 Payments|\`pp\_stripe-przelewy24\_stripe\`| +|PromptPay Payments|\`pp\_stripe-promptpay\_stripe\`| -In this example, you retrieve the scope's sales channel IDs using `req.publishable_key_context.sales_channel_ids`, whose value is an array of IDs. +*** -Then, you pass the first sales channel ID to the `getVariantAvailability` function to retrieve the inventory availability of the product variant in that sales channel. +## Setup Stripe Webhooks -Notice that the request object's type is `MedusaStoreRequest` instead of `MedusaRequest` to ensure the availability of the `publishable_key_context` property. +For production applications, you must set up webhooks in Stripe that inform Medusa of changes and updates to payments. Refer to [Stripe's documentation](https://docs.stripe.com/webhooks#add-a-webhook-endpoint) on how to setup webhooks. -### Method 2: Use Product's Sales Channel +### Webhook URL -A product is linked to the sales channels it's available in. So, you can retrieve the details of the variant's product, including its sales channels. +Medusa has a `{server_url}/hooks/payment/{provider_id}` API route that you can use to register webhooks in Stripe, where: + +- `{server_url}` is the URL to your deployed Medusa application in server mode. +- `{provider_id}` is the ID of the provider as explained in the [Stripe Payment Provider IDs](#stripe-payment-provider-ids) section, without the `pp_` prefix. + +The Stripe Module Provider supports the following payment types, and the webhook endpoint URL is different for each: + +|Stripe Payment Type|Webhook Endpoint URL| +|---|---|---| +|Basic Stripe Payment|\`\{server\_url}/hooks/payment/stripe\_stripe\`| +|Bancontact Payments|\`\{server\_url}/hooks/payment/stripe-bancontact\_stripe\`| +|BLIK Payments|\`\{server\_url}/hooks/payment/stripe-blik\_stripe\`| +|giropay Payments|\`\{server\_url}/hooks/payment/stripe-giropay\_stripe\`| +|iDEAL Payments|\`\{server\_url}/hooks/payment/stripe-ideal\_stripe\`| +|Przelewy24 Payments|\`\{server\_url}/hooks/payment/stripe-przelewy24\_stripe\`| +|PromptPay Payments|\`\{server\_url}/hooks/payment/stripe-promptpay\_stripe\`| + +### Webhook Events + +When you set up the webhook in Stripe, choose the following events to listen to: + +- `payment_intent.amount_capturable_updated` +- `payment_intent.succeeded` +- `payment_intent.payment_failed` + +*** + +## Useful Guides + +- [Storefront guide: Add Stripe payment method during checkout](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/checkout/payment/stripe/index.html.md). +- [Integrate in Next.js Starter](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter#stripe-integration/index.html.md). +- [Customize Stripe Integration in Next.js Starter](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/guides/customize-stripe/index.html.md). +- [Add Saved Payment Methods with Stripe](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/how-to-tutorials/tutorials/saved-payment-methods/index.html.md). + + +# Get Product Variant Prices using Query + +In this document, you'll learn how to retrieve product variant prices in the Medusa application using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). + +The Product Module doesn't provide pricing functionalities. The Medusa application links the Product Module's `ProductVariant` data model to the Pricing Module's `PriceSet` data model. + +So, to retrieve data across the linked records of the two modules, you use Query. + +## Retrieve All Product Variant Prices + +To retrieve all product variant prices, retrieve the product using Query and include among its fields `variants.prices.*`. For example: -```ts highlights={productSalesChannelHighlights} -import { getVariantAvailability } from "@medusajs/framework/utils" - -// ... - -// use req.scope instead of container in API routes -const query = container.resolve("query") - -const { data: variants } = await query.graph({ - entity: "variant", - fields: ["id", "product.sales_channels.*"], +```ts highlights={[["6"]]} +const { data: products } = await query.graph({ + entity: "product", + fields: [ + "*", + "variants.*", + "variants.prices.*", + ], filters: { - id: "variant_123", + id: [ + "prod_123", + ], }, }) - -const availability = await getVariantAvailability(query, { - variant_ids: ["variant_123"], - sales_channel_id: variants[0].product!.sales_channels![0]!.id, -}) ``` -In this example, you retrieve the sales channels of the variant's product using [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md). - -You pass the ID of the variant as a filter, and you specify `product.sales_channels.*` as the fields to retrieve. This retrieves the sales channels linked to the variant's product. - -Then, you pass the first sales channel ID to the `getVariantAvailability` function to retrieve the inventory availability of the product variant in that sales channel. - - -# Emailpass Auth Module Provider - -In this document, you’ll learn about the Emailpass auth module provider and how to install and use it in the Auth Module. - -Using the Emailpass auth module provider, you allow users to register and login with an email and password. +Each variant in the retrieved products has a `prices` array property with all the product variant prices. Each price object has the properties of the [Pricing Module's Price data model](https://docs.medusajs.com/references/pricing/models/Price/index.html.md). *** -## Register the Emailpass Auth Module Provider +## Retrieve Calculated Price for a Context -The Emailpass auth provider is registered by default with the Auth Module. +The Pricing Module can calculate prices of a variant based on a [context](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md), such as the region ID or the currency code. -If you want to pass options to the provider, add the provider to the `providers` option of the Auth Module: +Learn more about prices calculation in [this Pricing Module documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation/index.html.md). -```ts title="medusa-config.ts" -import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" +To retrieve calculated prices of variants based on a context, retrieve the products using Query and: + +- Pass `variants.calculated_price.*` in the `fields` property. +- Pass a `context` property in the object parameter. Its value is an object of objects that sets the context for the retrieved fields. + +For example: + +```ts highlights={[["10"], ["15"], ["16"], ["17"], ["18"], ["19"], ["20"], ["21"], ["22"]]} +import { QueryContext } from "@medusajs/framework/utils" // ... -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/auth", - dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], - options: { - providers: [ - // other providers... - { - resolve: "@medusajs/medusa/auth-emailpass", - id: "emailpass", - options: { - // options... - }, - }, - ], - }, - }, +const { data: products } = await query.graph({ + entity: "product", + fields: [ + "*", + "variants.*", + "variants.calculated_price.*", ], + filters: { + id: "prod_123", + }, + context: { + variants: { + calculated_price: QueryContext({ + region_id: "reg_01J3MRPDNXXXDSCC76Y6YCZARS", + currency_code: "eur", + }), + }, + }, }) ``` -### Module Options +For the context of the product variant's calculated price, you pass an object to `context` with the property `variants`, whose value is another object with the property `calculated_price`. -|Configuration|Description|Required|Default| -|---|---|---|---|---|---|---| -|\`hashConfig\`|An object of configurations to use when hashing the user's -password. Refer to |No|\`\`\`ts -const hashConfig = \{ - logN: 15, - r: 8, - p: 1 -} -\`\`\`| +`calculated_price`'s value is created using `QueryContext` from the Modules SDK, passing it a [calculation context object](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#calculation-context/index.html.md). -*** - -## Related Guides - -- [How to register a customer using email and password](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/register/index.html.md) - - -# Google Auth Module Provider - -In this document, you’ll learn about the Google Auth Module Provider and how to install and use it in the Auth Module. - -The Google Auth Module Provider authenticates users with their Google account. - -Learn about the authentication flow for third-party providers in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#2-third-party-service-authenticate-flow/index.html.md). - -*** - -## Register the Google Auth Module Provider - -### Prerequisites - -- [Create a project in Google Cloud.](https://cloud.google.com/resource-manager/docs/creating-managing-projects) -- [Create authorization credentials. When setting the Redirect Uri, set it to a URL in your frontend that later uses Medusa's callback route to validate the authentication.](https://developers.google.com/identity/protocols/oauth2/web-server#creatingcred) - -Add the module to the array of providers passed to the Auth Module: - -```ts title="medusa-config.ts" -import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - // ... - [Modules.AUTH]: { - resolve: "@medusajs/medusa/auth", - dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], - options: { - providers: [ - // other providers... - { - resolve: "@medusajs/medusa/auth-google", - id: "google", - options: { - clientId: process.env.GOOGLE_CLIENT_ID, - clientSecret: process.env.GOOGLE_CLIENT_SECRET, - callbackUrl: process.env.GOOGLE_CALLBACK_URL, - }, - }, - ], - }, - }, - }, - ], -}) -``` - -### Environment Variables - -Make sure to add the necessary environment variables for the above options in `.env`: - -```plain -GOOGLE_CLIENT_ID= -GOOGLE_CLIENT_SECRET= -GOOGLE_CALLBACK_URL= -``` - -### Module Options - -|Configuration|Description|Required| -|---|---|---|---|---| -|\`clientId\`|A string indicating the |Yes| -|\`clientSecret\`|A string indicating the |Yes| -|\`callbackUrl\`|A string indicating the URL to redirect to in your frontend after the user completes their authentication in Google.|Yes| - -*** - -*** - -## Override Callback URL During Authentication - -In many cases, you may have different callback URL for actor types. For example, you may redirect admin users to a different URL than customers after authentication. - -The [Authenticate or Login API Route](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md) can accept a `callback_url` body parameter to override the provider's `callbackUrl` option. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md). - -*** - -## Examples - -- [How to implement Google social login in the storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/third-party-login/index.html.md). - - -# GitHub Auth Module Provider - -In this document, you’ll learn about the GitHub Auth Module Provider and how to install and use it in the Auth Module. - -The Github Auth Module Provider authenticates users with their GitHub account. - -Learn about the authentication flow in [this guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route/index.html.md). - -*** - -## Register the Github Auth Module Provider - -### Prerequisites - -- [Register GitHub App. When setting the Callback URL, set it to a URL in your frontend that later uses Medusa's callback route to validate the authentication.](https://docs.github.com/en/apps/creating-github-apps/setting-up-a-github-app/creating-a-github-app) -- [Retrieve the client ID and client secret of your GitHub App](https://docs.github.com/en/rest/authentication/authenticating-to-the-rest-api?apiVersion=2022-11-28#using-basic-authentication) - -Add the module to the array of providers passed to the Auth Module: - -```ts title="medusa-config.ts" -import { Modules, ContainerRegistrationKeys } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/auth", - dependencies: [Modules.CACHE, ContainerRegistrationKeys.LOGGER], - options: { - providers: [ - // other providers... - { - resolve: "@medusajs/medusa/auth-github", - id: "github", - options: { - clientId: process.env.GITHUB_CLIENT_ID, - clientSecret: process.env.GITHUB_CLIENT_SECRET, - callbackUrl: process.env.GITHUB_CALLBACK_URL, - }, - }, - ], - }, - }, - ], -}) -``` - -### Environment Variables - -Make sure to add the necessary environment variables for the above options in `.env`: - -```plain -GITHUB_CLIENT_ID= -GITHUB_CLIENT_SECRET= -GITHUB_CALLBACK_URL= -``` - -### Module Options - -|Configuration|Description|Required| -|---|---|---|---|---| -|\`clientId\`|A string indicating the client ID of your GitHub app.|Yes| -|\`clientSecret\`|A string indicating the client secret of your GitHub app.|Yes| -|\`callbackUrl\`|A string indicating the URL to redirect to in your frontend after the user completes their authentication in GitHub.|Yes| - -*** - -## Override Callback URL During Authentication - -In many cases, you may have different callback URL for actor types. For example, you may redirect admin users to a different URL than customers after authentication. - -The [Authenticate or Login API Route](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md) can accept a `callback_url` body parameter to override the provider's `callbackUrl` option. Learn more in [this documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/auth/authentication-route#login-route/index.html.md). - -*** - -## Examples - -- [How to implement third-party / social login in the storefront.](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/storefront-development/customers/third-party-login/index.html.md). +Each variant in the retrieved products has a `calculated_price` object. Learn more about its properties in [this Pricing Module guide](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/pricing/price-calculation#returned-price-object/index.html.md). # Infrastructure Modules @@ -31169,297 +31169,6 @@ The following Workflow Engine modules are provided by Medusa. - [Redis](https://docs.medusajs.com/infrastructure-modules/workflow-engine/redis/index.html.md) -# Analytics Module - -In this document, you'll learn about the Analytics Module and its providers. - -The Analytics Module is available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). - -## What is the Analytics Module? - -The Analytics Module exposes functionalities to track and analyze user interactions and system events with third-party services. For example, you can track cart updates or completed orders. - -In your Medusa application, you can use the Analytics Module to send data to third-party analytics services like PostHog or Segment, enabling you to gain insights into user behavior and system performance. - -![Diagram showcasing the flow of tracking an event like order.placed](https://res.cloudinary.com/dza7lstvk/image/upload/v1747832107/Medusa%20Resources/analytics-module-overview_egz7xg.jpg) - -*** - -## How to Use the Analytics Module? - -### Configure Analytics Module Provider - -To use the Analytics Module, you need to configure it along with an Analytics Module Provider. - -An Analytics Module Provider implements the underlying logic of sending analytics data. It integrates with a third-party analytics service to send the data collected through the Analytics Module. - -Medusa provides two Analytics Module Providers: Local and PostHog module providers. - -You can also [create a custom Analytics Module Provider](https://docs.medusajs.com/references/analytics/provider/index.html.md) that integrates with a third-party service, like Segment. - -- [Local](https://docs.medusajs.com/infrastructure-modules/analytics/local/index.html.md) -- [PostHog](https://docs.medusajs.com/infrastructure-modules/analytics/posthog/index.html.md) - -To configure the Analytics Module and its provider, add it to the list of modules in your `medusa-config.ts` file. For example: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/analytics", - options: { - providers: [ - { - resolve: "@medusajs/medusa/analytics-local", - id: "local", - }, - ], - }, - }, - ], -}) -``` - -Refer to the documentation of each provider for specific configuration options. - -### Track Events - -To track an event, you can use the Analytics Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -In a step of your workflow, you can resolve the Analytics Module's service and use its methods to track events or identify users. - -For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: - -```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} -import { createWorkflow } from "@medusajs/framework/workflows-sdk" -import { createStep } from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" -import { OrderDTO } from "@medusajs/framework/types" - -type StepInput = { - order: OrderDTO -} - -const trackOrderCreatedStep = createStep( - "track-order-created-step", - async ({ order }: StepInput, { container }) => { - const analyticsModuleService = container.resolve(Modules.ANALYTICS) - - await analyticsModuleService.track({ - event: "order_created", - userId: order.customer_id, - properties: { - order_id: order.id, - total: order.total, - items: order.items.map((item) => ({ - variant_id: item.variant_id, - product_id: item.product_id, - quantity: item.quantity, - })), - customer_id: order.customer_id, - }, - }) - } -) - -type WorkflowInput = { - order_id: string -} - -export const trackOrderCreatedWorkflow = createWorkflow( - "track-order-created-workflow", - ({ order_id }: WorkflowInput) => { - const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "*", - "customer.*", - "items.*" - ], - filters: { - id: order_id, - }, - }) - trackOrderCreatedStep({ - order: orders[0], - }) - } -) -``` - -This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. - -In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured in `medusa-config.ts` to track the event. - -### Execute Analytics Workflow - -After that, you can execute this workflow in a subscriber that runs when a product is created. - -create a subscriber at `src/subscribers/order-placed.ts` with the following content: - -```ts title="src/subscribers/order-placed.ts" -import type { - SubscriberArgs, - SubscriberConfig, -} from "@medusajs/framework" -import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" - -export default async function orderPlacedHandler({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - await trackOrderCreatedWorkflow(container).run({ - input: { - order_id: data.id, - }, - }) -} - -export const config: SubscriberConfig = { - event: "order.placed", -} -``` - -This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. - -You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking the provider you integrated with (for example, PostHog) for the tracked event. - - -# File Module - -In this document, you'll learn about the File Module and its providers. - -## What is the File Module? - -The File Module exposes the functionalities to upload assets, such as product images, to the Medusa application. Medusa uses the File Module in its core commerce features for all file operations, and you can use it in your custom features as well. - -*** - -## How to Use the File Module? - -You can use the File Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -In a step of your workflow, you can resolve the File Module's service and use its methods to upload files, retrieve files, or delete files. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" -import { - createStep, - createWorkflow, - StepResponse, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async ({}, { container }) => { - const fileModuleService = container.resolve( - Modules.FILE - ) - - const { url } = await fileModuleService.retrieveFile("image.png") - - return new StepResponse(url) - } -) - -export const workflow = createWorkflow( - "workflow-1", - () => { - const url = step1() - - return new WorkflowResponse(url) - } -) -``` - -In the example above, you create a workflow that has a step. In the step, you resolve the service of the File Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). - -Then, you use the `retrieveFile` method of the File Module to retrieve the URL of the file with the name `"image.png"`. The URL is then returned as a response from the step and the workflow. - -*** - -### What is a File Module Provider? - -A File Module Provider implements the underlying logic of handling uploads and downloads of assets, such as integrating third-party services. The File Module then uses the registered File Module Provider to handle file operations. - -Only one File Module Provider can be registered at a time. If you register multiple providers, the File Module will throw an error. - -By default, Medusa uses the [Local File Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/file/local/index.html.md). This module uploads files to the `uploads` directory of your Medusa application. - -This is useful for development. However, for production, it’s highly recommended to use other File Module Providers, such as the S3 File Module Provider. You can also [Create a File Provider](https://docs.medusajs.com/references/file-provider-module/index.html.md). - -- [Local](https://docs.medusajs.com/infrastructure-modules/file/local/index.html.md) -- [AWS S3 (and Compatible APIs)](https://docs.medusajs.com/infrastructure-modules/file/s3/index.html.md) - - -# Cache Module - -In this document, you'll learn what a Cache Module is and how to use it in your Medusa application. - -## What is a Cache Module? - -A Cache Module is used to cache the results of computations such as price selection or various tax calculations. - -The underlying database, third-party service, or caching logic is flexible since it's implemented in a module. You can choose from Medusa’s cache modules or create your own to support something more suitable for your architecture. - -### Default Cache Module - -By default, Medusa uses the [In-Memory Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/in-memory/index.html.md). This module uses a plain JavaScript Map object to store the cache data. While this is suitable for development, it's recommended to use other Cache Modules, such as the [Redis Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/redis/index.html.md), for production. You can also [Create a Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/create/index.html.md). - -*** - -## How to Use the Cache Module? - -You can use the registered Cache Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -In a step of your workflow, you can resolve the Cache Module's service and use its methods to cache data, retrieve cached data, or clear the cache. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" -import { - createStep, - createWorkflow, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async ({}, { container }) => { - const cacheModuleService = container.resolve( - Modules.CACHE - ) - - await cacheModuleService.set("key", "value") - } -) - -export const workflow = createWorkflow( - "workflow-1", - () => { - step1() - } -) -``` - -In the example above, you create a workflow that has a step. In the step, you resolve the service of the Cache Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). - -Then, you use the `set` method of the Cache Module to cache the value `"value"` with the key `"key"`. - -*** - -## List of Cache Modules - -Medusa provides the following Cache Modules. You can use one of them, or [Create a Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/create/index.html.md). - -- [In-Memory](https://docs.medusajs.com/infrastructure-modules/cache/in-memory/index.html.md) -- [Redis](https://docs.medusajs.com/infrastructure-modules/cache/redis/index.html.md) - - # Event Module In this document, you'll learn what an Event Module is and how to use it in your Medusa application. @@ -31532,6 +31241,76 @@ Medusa provides the following Event Modules. You can use one of them, or [Create - [Redis](https://docs.medusajs.com/infrastructure-modules/event/redis/index.html.md) +# File Module + +In this document, you'll learn about the File Module and its providers. + +## What is the File Module? + +The File Module exposes the functionalities to upload assets, such as product images, to the Medusa application. Medusa uses the File Module in its core commerce features for all file operations, and you can use it in your custom features as well. + +*** + +## How to Use the File Module? + +You can use the File Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +In a step of your workflow, you can resolve the File Module's service and use its methods to upload files, retrieve files, or delete files. + +For example: + +```ts +import { Modules } from "@medusajs/framework/utils" +import { + createStep, + createWorkflow, + StepResponse, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async ({}, { container }) => { + const fileModuleService = container.resolve( + Modules.FILE + ) + + const { url } = await fileModuleService.retrieveFile("image.png") + + return new StepResponse(url) + } +) + +export const workflow = createWorkflow( + "workflow-1", + () => { + const url = step1() + + return new WorkflowResponse(url) + } +) +``` + +In the example above, you create a workflow that has a step. In the step, you resolve the service of the File Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). + +Then, you use the `retrieveFile` method of the File Module to retrieve the URL of the file with the name `"image.png"`. The URL is then returned as a response from the step and the workflow. + +*** + +### What is a File Module Provider? + +A File Module Provider implements the underlying logic of handling uploads and downloads of assets, such as integrating third-party services. The File Module then uses the registered File Module Provider to handle file operations. + +Only one File Module Provider can be registered at a time. If you register multiple providers, the File Module will throw an error. + +By default, Medusa uses the [Local File Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/file/local/index.html.md). This module uploads files to the `uploads` directory of your Medusa application. + +This is useful for development. However, for production, it’s highly recommended to use other File Module Providers, such as the S3 File Module Provider. You can also [Create a File Provider](https://docs.medusajs.com/references/file-provider-module/index.html.md). + +- [Local](https://docs.medusajs.com/infrastructure-modules/file/local/index.html.md) +- [AWS S3 (and Compatible APIs)](https://docs.medusajs.com/infrastructure-modules/file/s3/index.html.md) + + # Locking Module In this document, you'll learn about the Locking Module and its providers. @@ -31645,76 +31424,6 @@ Medusa provides the following Locking Module Providers. You can use one of them, - [PostgreSQL](https://docs.medusajs.com/infrastructure-modules/locking/postgres/index.html.md) -# Workflow Engine Module - -In this document, you'll learn what a Workflow Engine Module is and how to use it in your Medusa application. - -## What is a Workflow Engine Module? - -A Workflow Engine Module handles tracking and recording the transactions and statuses of workflows and their steps. It can use custom mechanism or integrate a third-party service. - -### Default Workflow Engine Module - -Medusa uses the [In-Memory Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/in-memory/index.html.md) by default. For production purposes, it's recommended to use the [Redis Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/redis/index.html.md) instead. - -*** - -## How to Use the Workflow Engine Module? - -You can use the registered Workflow Engine Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. - -In a step of your workflow, you can resolve the Workflow Engine Module's service and use its methods to track and record the transactions and statuses of workflows and their steps. - -For example: - -```ts -import { Modules } from "@medusajs/framework/utils" -import { - createStep, - createWorkflow, - StepResponse, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async ({}, { container }) => { - const workflowEngineService = container.resolve( - Modules.WORKFLOW_ENGINE - ) - - const [workflowExecution] = await workflowEngineService.listWorkflowExecutions({ - transaction_id: transaction_id, - }) - - return new StepResponse(workflowExecution) - } -) - -export const workflow = createWorkflow( - "workflow-1", - () => { - const workflowExecution = step1() - - return new WorkflowResponse(workflowExecution) - } -) -``` - -In the example above, you create a workflow that has a step. In the step, you resolve the service of the Workflow Engine Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). - -Then, you use the `listWorkflowExecutions` method of the Workflow Engine Module to list the workflow executions with the transaction ID `transaction_id`. The workflow execution is then returned as a response from the step and the workflow. - -*** - -## List of Workflow Engine Modules - -Medusa provides the following Workflow Engine Modules. - -- [In-Memory](https://docs.medusajs.com/infrastructure-modules/workflow-engine/in-memory/index.html.md) -- [Redis](https://docs.medusajs.com/infrastructure-modules/workflow-engine/redis/index.html.md) - - # Notification Module In this document, you'll learn about the Notification Module and its providers. @@ -31824,723 +31533,227 @@ module.exports = { The `channels` option is an array of strings indicating the channels this provider is used for. -# Local Analytics Module Provider +# Cache Module -The Local Analytics Module Provider is a simple analytics provider for Medusa that logs analytics events to the console. It's useful for development and debugging purposes. +In this document, you'll learn what a Cache Module is and how to use it in your Medusa application. -The Analytics Module and its providers are available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). +## What is a Cache Module? + +A Cache Module is used to cache the results of computations such as price selection or various tax calculations. + +The underlying database, third-party service, or caching logic is flexible since it's implemented in a module. You can choose from Medusa’s cache modules or create your own to support something more suitable for your architecture. + +### Default Cache Module + +By default, Medusa uses the [In-Memory Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/in-memory/index.html.md). This module uses a plain JavaScript Map object to store the cache data. While this is suitable for development, it's recommended to use other Cache Modules, such as the [Redis Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/redis/index.html.md), for production. You can also [Create a Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/create/index.html.md). *** -## Register the Local Analytics Module +## How to Use the Cache Module? -Add the module into the `provider` object of the Analytics Module: +You can use the registered Cache Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. -You can use only one Analytics Module Provider in your Medusa application. - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/analytics", - options: { - provider: { - resolve: "@medusajs/analytics-local", - id: "local", - }, - }, - }, - ], -}) -``` - -*** - -## Test out the Module - -To test the module out, you'll track in the console when an order is placed. - -You'll first create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) that tracks the order completion event. Then, you can execute the workflow in a [subscriber](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md) that listens to the `order.placed` event. - -For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: - -```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} -import { createWorkflow } from "@medusajs/framework/workflows-sdk" -import { createStep } from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" -import { OrderDTO } from "@medusajs/framework/types" - -type StepInput = { - order: OrderDTO -} - -const trackOrderCreatedStep = createStep( - "track-order-created-step", - async ({ order }: StepInput, { container }) => { - const analyticsModuleService = container.resolve(Modules.ANALYTICS) - - await analyticsModuleService.track({ - event: "order_created", - userId: order.customer_id, - properties: { - order_id: order.id, - total: order.total, - items: order.items.map((item) => ({ - variant_id: item.variant_id, - product_id: item.product_id, - quantity: item.quantity, - })), - customer_id: order.customer_id, - }, - }) - } -) - -type WorkflowInput = { - order_id: string -} - -export const trackOrderCreatedWorkflow = createWorkflow( - "track-order-created-workflow", - ({ order_id }: WorkflowInput) => { - const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "*", - "customer.*", - "items.*" - ], - filters: { - id: order_id, - }, - }) - trackOrderCreatedStep({ - order: orders[0], - }) - } -) -``` - -This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. - -In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured (which is the Local Analytics Module Provider, in this case) to track the event. - -Next, create a subscriber at `src/subscribers/order-placed.ts` with the following content: - -```ts title="src/subscribers/order-placed.ts" -import type { - SubscriberArgs, - SubscriberConfig, -} from "@medusajs/framework" -import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" - -export default async function orderPlacedHandler({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - await trackOrderCreatedWorkflow(container).run({ - input: { - order_id: data.id, - }, - }) -} - -export const config: SubscriberConfig = { - event: "order.placed", -} -``` - -This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. - -You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking the console for the tracked event. - -*** - -## Additional Resources - -- [How to Use the Analytics Module](https://docs.medusajs.com/references/analytics/service/index.html.md) - - -# PostHog Analytics Module Provider - -The PostHog Analytics Module Provider allows you to integrate [PostHog](https://posthog.com/) with Medusa. - -PostHog is an open-source product analytics platform that helps you track user interactions and analyze user behavior in your commerce application. - -By integrating PostHog with Medusa, you can track events such as cart additions, order completions, and user sign-ups, enabling you to gain insights into user behavior and optimize your application accordingly. - -The Analytics Module and its providers are available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). - -*** - -## Register the PostHog Analytics Module - -### Prerequisites - -- [PostHog account](https://app.posthog.com/signup) -- [PostHog API Key](https://posthog.com/docs/getting-started/api-key) - -Add the module into the `provider` object of the Analytics Module: - -You can use only one provider in your Medusa application. - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/analytics", - options: { - provider: { - resolve: "@medusajs/analytics-posthog", - id: "posthog", - options: { - posthogEventsKey: process.env.POSTHOG_EVENTS_API_KEY, - posthogHost: process.env.POSTHOG_HOST, - }, - }, - }, - }, - ], -}) -``` - -### Environment Variables - -Make sure to add the following environment variables: - -```bash -POSTHOG_EVENTS_API_KEY= -POSTHOG_HOST= -``` - -### PostHog Analytics Module Options - -|Option|Description|Default| -|---|---|---| -|\`eventsKey\`|The PostHog API key for tracking events. This is required to authenticate your requests to the PostHog API.|-| -|\`posthogHost\`|The PostHog API host URL.|\`https://eu.i.posthog.com\`| - -*** - -## Test out the Module - -To test the module out, you'll track in PostHog when an order is placed. - -You'll first create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) that tracks the order completion event. Then, you can execute the workflow in a [subscriber](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md) that listens to the `order.placed` event. - -For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: - -```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} -import { createWorkflow } from "@medusajs/framework/workflows-sdk" -import { createStep } from "@medusajs/framework/workflows-sdk" -import { Modules } from "@medusajs/framework/utils" -import { OrderDTO } from "@medusajs/framework/types" - -type StepInput = { - order: OrderDTO -} - -const trackOrderCreatedStep = createStep( - "track-order-created-step", - async ({ order }: StepInput, { container }) => { - const analyticsModuleService = container.resolve(Modules.ANALYTICS) - - await analyticsModuleService.track({ - event: "order_created", - userId: order.customer_id, - properties: { - order_id: order.id, - total: order.total, - items: order.items.map((item) => ({ - variant_id: item.variant_id, - product_id: item.product_id, - quantity: item.quantity, - })), - customer_id: order.customer_id, - }, - }) - } -) - -type WorkflowInput = { - order_id: string -} - -export const trackOrderCreatedWorkflow = createWorkflow( - "track-order-created-workflow", - ({ order_id }: WorkflowInput) => { - const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "*", - "customer.*", - "items.*" - ], - filters: { - id: order_id, - }, - }) - trackOrderCreatedStep({ - order: orders[0], - }) - } -) -``` - -This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. - -In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured (which is the PostHog Analytics Module Provider, in this case) to track the event. - -Next, create a subscriber at `src/subscribers/order-placed.ts` with the following content: - -```ts title="src/subscribers/order-placed.ts" -import type { - SubscriberArgs, - SubscriberConfig, -} from "@medusajs/framework" -import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" - -export default async function orderPlacedHandler({ - event: { data }, - container, -}: SubscriberArgs<{ id: string }>) { - await trackOrderCreatedWorkflow(container).run({ - input: { - order_id: data.id, - }, - }) -} - -export const config: SubscriberConfig = { - event: "order.placed", -} -``` - -This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. - -You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking your PostHog dashboard for the tracked event. - -*** - -## Additional Resources - -- [How to Use the Analytics Module](https://docs.medusajs.com/references/analytics/service/index.html.md) - - -# Local File Module Provider - -The Local File Module Provider stores files uploaded to your Medusa application in the `/uploads` directory. - -- The Local File Module Provider is only for development purposes. Use the [S3 File Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/file/s3/index.html.md) in production instead. -- The Local File Module Provider will only read files uploaded through Medusa. It will not read files uploaded manually to the `static` (or other configured) directory. - -*** - -## Register the Local File Module - -The Local File Module Provider is registered by default in your application. - -Add the module into the `providers` array of the File Module: - -The File Module accepts one provider only. - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = { - // ... - modules: [ - { - resolve: "@medusajs/medusa/file", - options: { - providers: [ - { - resolve: "@medusajs/medusa/file-local", - id: "local", - options: { - // provider options... - }, - }, - ], - }, - }, - ], -} -``` - -### Local File Module Options - -|Option|Description|Default| -|---|---|---|---|---| -|\`upload\_dir\`|The directory to upload files to. Medusa exposes the content of the |\`static\`| -|\`backend\_url\`|The URL that serves the files.|\`http://localhost:9000/static\`| - - -# S3 File Module Provider - -The S3 File Module Provider integrates Amazon S3 and services following a compatible API (such as MinIO or DigitalOcean Spaces) to store files uploaded to your Medusa application. - -Medusa Cloud offers a managed file storage solution with AWS S3 for your Medusa application. Contact the [sales team](https://medusajs.com/pricing/) to learn more. - -## Prerequisites - -### AWS S3 - -- [AWS account](https://console.aws.amazon.com/console/home?nc2=h_ct\&src=header-signin). -- Create [AWS user with AmazonS3FullAccess permissions](https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-and-attach-iam-policy.html). -- Create [AWS user access key ID and secret access key](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_access-keys.html#Using_CreateAccessKey). -- Create [S3 bucket](https://docs.aws.amazon.com/AmazonS3/latest/userguide/create-bucket-overview.html) with the "Public Access setting" enabled: - 1. On your bucket's dashboard, click on the Permissions tab. - 2. Click on the Edit button of the Block public access (bucket settings) section. - 3. In the form that opens, don't toggle any checkboxes and click the "Save changes" button. - 4. Confirm saving the changes by entering `confirm` in the pop-up that shows. - 5. Back on the Permissions page, scroll to the Object Ownership section and click the Edit button. - 6. In the form that opens: - - Choose the "ACLs enabled" card. - - Click on the "Save changes" button. - 7. Back on the Permissions page, scroll to the "Access Control List (ACL)" section and click on the Edit button. - 8. In the form that opens, enable the Read permission for "Everyone (public access)". - 9. Check the "I understand the effects of these changes on my objects and buckets." checkbox. - 10. Click on the "Save changes" button. - -### MinIO - -- Create [DigitalOcean account](https://cloud.digitalocean.com/registrations/new). -- Create [DigitalOcean Spaces bucket](https://docs.digitalocean.com/products/spaces/how-to/create/). -- Create [DigitalOcean Spaces access and secret access keys](https://docs.digitalocean.com/products/spaces/how-to/manage-access/#access-keys). - -### DigitalOcean Spaces - -1. Create a [Cloudflare account](https://dash.cloudflare.com/sign-up). -2. Set up your R2 bucket: - - Navigate to R2 Object Storage in your dashboard. You may need to provide your credit-card information. - - Click "Create bucket" - - Enter a unique bucket name - - Select "Automatic" for location - - Choose "Standard" for storage class - - Confirm by clicking "Create bucket" -3. Configure public access: - - On your bucket's dashboard, click on the Settings tab. - - Scroll down to the Public Access section, and click on "Allow Access" in the "R2.dev subdomain" card. - - Type 'allow' to confirm - - Copy the Public R2.dev Bucket URL for your `S3_FILE_URL` -4. Retrieve credentials: - - [Go to API tokens page](https://dash.cloudflare.com/?to=/:account/r2/api-tokens): - - Select "Create API token" - - Edit the "R2 Token" name - - Under Permissions, select Object Read & Write permission types - - You can optionally specify the buckets that this API token has access to under the "Specify bucket(s)" section. - - Once done, click the "Create API Token" button. - - You'll receive an access key ID and a secret access key. Save them to use them later for the `S3_ACCESS_KEY_ID` and `S3_SECRET_ACCESS_KEY` environment variables. - -### Supabase S3 Storage - -### Cloudflare R2 - -*** - -## Register the S3 File Module - -Add the module into the `providers` array of the File Module: - -The File Module accepts one provider only. - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = { - // ... - modules: [ - // ... - { - resolve: "@medusajs/medusa/file", - options: { - providers: [ - { - resolve: "@medusajs/medusa/file-s3", - id: "s3", - options: { - file_url: process.env.S3_FILE_URL, - access_key_id: process.env.S3_ACCESS_KEY_ID, - secret_access_key: process.env.S3_SECRET_ACCESS_KEY, - region: process.env.S3_REGION, - bucket: process.env.S3_BUCKET, - endpoint: process.env.S3_ENDPOINT, - // other options... - }, - }, - ], - }, - }, - ], -} -``` - -### Additional Configuration for MinIO and Supabase - -If you're using MinIO or Supabase, set `forcePathStyle` to `true` in the `additional_client_config` object. +In a step of your workflow, you can resolve the Cache Module's service and use its methods to cache data, retrieve cached data, or clear the cache. For example: -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/file", - options: { - providers: [ - { - resolve: "@medusajs/medusa/file-s3", - id: "s3", - options: { - // ... - additional_client_config: { - forcePathStyle: true, - }, - }, - }, - ], - }, - }, - ], -}) -``` +```ts +import { Modules } from "@medusajs/framework/utils" +import { + createStep, + createWorkflow, +} from "@medusajs/framework/workflows-sdk" -### S3 File Module Options - -|Option|Description|Default| -|---|---|---|---|---| -|\`file\_url\`|The base URL to upload files to.|-| -|\`access\_key\_id\`|The AWS or (S3 compatible) user's access key ID.|-| -|\`secret\_access\_key\`|The AWS or (S3 compatible) user's secret access key.|-| -|\`region\`|The bucket's region code.|-| -|\`bucket\`|The bucket's name.|-| -|\`endpoint\`|The URL to the AWS S3 (or compatible S3 API) server.|-| -|\`prefix\`|A string to prefix each uploaded file's name.|-| -|\`cache\_control\`|A string indicating how long objects remain in the AWS S3 (or compatible S3 API) cache.|\`public, max-age=31536000\`| -|\`download\_file\_duration\`|A number indicating the expiry time of presigned URLs in seconds.|\`3600\`| -|\`additional\_client\_config\`|Any additional configurations to pass to the S3 client.|-| - -*** - -## Troubleshooting - - -# How to Create a Cache Module - -In this guide, you’ll learn how to create a Cache Module. - -## 1. Create Module Directory - -Start by creating a new directory for your module. For example, `src/modules/my-cache`. - -*** - -## 2. Create the Cache Service - -Create the file `src/modules/my-cache/service.ts` that holds the implementation of the cache service. - -The Cache Module's main service must implement the `ICacheService` interface imported from `@medusajs/framework/types`: - -```ts title="src/modules/my-cache/service.ts" -import { ICacheService } from "@medusajs/framework/types" - -class MyCacheService implements ICacheService { - get(key: string): Promise { - throw new Error("Method not implemented.") - } - set(key: string, data: unknown, ttl?: number): Promise { - throw new Error("Method not implemented.") - } - invalidate(key: string): Promise { - throw new Error("Method not implemented.") - } -} - -export default MyCacheService -``` - -The service implements the required methods based on the desired caching mechanism. - -### Implement get Method - -The `get` method retrieves the value of a cached item based on its key. - -The method accepts a string as a first parameter, which is the key in the cache. It either returns the cached item or `null` if it doesn’t exist. - -For example, to implement this method using Memcached: - -```ts title="src/modules/my-cache/service.ts" -class MyCacheService implements ICacheService { - // ... - async get(cacheKey: string): Promise { - return new Promise((res, rej) => { - this.memcached.get(cacheKey, (err, data) => { - if (err) { - res(null) - } else { - if (data) { - res(JSON.parse(data)) - } else { - res(null) - } - } - }) - }) - } -} -``` - -### Implement set Method - -The `set` method is used to set an item in the cache. It accepts three parameters: - -1. The first parameter is a string indicating the key of the data being added to the cache. This key can be used later to get or invalidate the cached item. -2. The second parameter is the data to be added to the cache. The data can be of any type. -3. The third parameter is optional. It’s a number indicating how long (in seconds) the data should be kept in the cache. - -For example, to implement this method using Memcached: - -```ts title="src/modules/my-cache/service.ts" -class MyCacheService implements ICacheService { - protected TTL = 60 - // ... - async set( - key: string, - data: Record, - ttl: number = this.TTL // or any value - ): Promise { - return new Promise((res, rej) => - this.memcached.set( - key, JSON.stringify(data), ttl, (err) => { - if (err) { - rej(err) - } else { - res() - } - }) +const step1 = createStep( + "step-1", + async ({}, { container }) => { + const cacheModuleService = container.resolve( + Modules.CACHE ) + + await cacheModuleService.set("key", "value") + } +) + +export const workflow = createWorkflow( + "workflow-1", + () => { + step1() } -} +) ``` -### Implement invalidate Method +In the example above, you create a workflow that has a step. In the step, you resolve the service of the Cache Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). -The `invalidate` method removes an item from the cache using its key. +Then, you use the `set` method of the Cache Module to cache the value `"value"` with the key `"key"`. -By default, items are removed from the cache when their time-to-live (ttl) expires. The `invalidate` method can be used to remove the item beforehand. +*** -The method accepts a string as a first parameter, which is the key of the item to invalidate and remove from the cache. +## List of Cache Modules -For example, to implement this method using Memcached: +Medusa provides the following Cache Modules. You can use one of them, or [Create a Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/create/index.html.md). -```ts title="src/modules/my-cache/service.ts" -class MyCacheService implements ICacheService { +- [In-Memory](https://docs.medusajs.com/infrastructure-modules/cache/in-memory/index.html.md) +- [Redis](https://docs.medusajs.com/infrastructure-modules/cache/redis/index.html.md) + + +# Analytics Module + +In this document, you'll learn about the Analytics Module and its providers. + +The Analytics Module is available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). + +## What is the Analytics Module? + +The Analytics Module exposes functionalities to track and analyze user interactions and system events with third-party services. For example, you can track cart updates or completed orders. + +In your Medusa application, you can use the Analytics Module to send data to third-party analytics services like PostHog or Segment, enabling you to gain insights into user behavior and system performance. + +![Diagram showcasing the flow of tracking an event like order.placed](https://res.cloudinary.com/dza7lstvk/image/upload/v1747832107/Medusa%20Resources/analytics-module-overview_egz7xg.jpg) + +*** + +## How to Use the Analytics Module? + +### Configure Analytics Module Provider + +To use the Analytics Module, you need to configure it along with an Analytics Module Provider. + +An Analytics Module Provider implements the underlying logic of sending analytics data. It integrates with a third-party analytics service to send the data collected through the Analytics Module. + +Medusa provides two Analytics Module Providers: Local and PostHog module providers. + +You can also [create a custom Analytics Module Provider](https://docs.medusajs.com/references/analytics/provider/index.html.md) that integrates with a third-party service, like Segment. + +- [Local](https://docs.medusajs.com/infrastructure-modules/analytics/local/index.html.md) +- [PostHog](https://docs.medusajs.com/infrastructure-modules/analytics/posthog/index.html.md) + +[Segment](https://docs.medusajs.com/integrations/guides/segment/index.html.md): undefined + +To configure the Analytics Module and its provider, add it to the list of modules in your `medusa-config.ts` file. For example: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ // ... - async invalidate(key: string): Promise { - return new Promise((res, rej) => { - this.memcached.del(key, (err) => { - if (err) { - rej(err) - } else { - res() - } - }) + modules: [ + { + resolve: "@medusajs/medusa/analytics", + options: { + providers: [ + { + resolve: "@medusajs/medusa/analytics-local", + id: "local", + }, + ], + }, + }, + ], +}) +``` + +Refer to the documentation of each provider for specific configuration options. + +### Track Events + +To track an event, you can use the Analytics Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +In a step of your workflow, you can resolve the Analytics Module's service and use its methods to track events or identify users. + +For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: + +```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} +import { createWorkflow } from "@medusajs/framework/workflows-sdk" +import { createStep } from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" +import { OrderDTO } from "@medusajs/framework/types" + +type StepInput = { + order: OrderDTO +} + +const trackOrderCreatedStep = createStep( + "track-order-created-step", + async ({ order }: StepInput, { container }) => { + const analyticsModuleService = container.resolve(Modules.ANALYTICS) + + await analyticsModuleService.track({ + event: "order_created", + userId: order.customer_id, + properties: { + order_id: order.id, + total: order.total, + items: order.items.map((item) => ({ + variant_id: item.variant_id, + product_id: item.product_id, + quantity: item.quantity, + })), + customer_id: order.customer_id, + }, }) } +) + +type WorkflowInput = { + order_id: string +} + +export const trackOrderCreatedWorkflow = createWorkflow( + "track-order-created-workflow", + ({ order_id }: WorkflowInput) => { + const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "*", + "customer.*", + "items.*", + ], + filters: { + id: order_id, + }, + }) + trackOrderCreatedStep({ + order: orders[0], + }) + } +) +``` + +This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. + +In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured in `medusa-config.ts` to track the event. + +### Execute Analytics Workflow + +After that, you can execute this workflow in a subscriber that runs when a product is created. + +create a subscriber at `src/subscribers/order-placed.ts` with the following content: + +```ts title="src/subscribers/order-placed.ts" +import type { + SubscriberArgs, + SubscriberConfig, +} from "@medusajs/framework" +import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" + +export default async function orderPlacedHandler({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + await trackOrderCreatedWorkflow(container).run({ + input: { + order_id: data.id, + }, + }) +} + +export const config: SubscriberConfig = { + event: "order.placed", } ``` -*** +This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. -## 3. Create Module Definition File - -Create the file `src/modules/my-cache/index.ts` with the following content: - -```ts title="src/modules/my-cache/index.ts" -import MyCacheService from "./service" -import { Module } from "@medusajs/framework/utils" - -export default Module("my-cache", { - service: MyCacheService, -}) -``` - -This exports the module's definition, indicating that the `MyCacheService` is the main service of the module. - -*** - -## 4. Use Module - -To use your Cache Module, add it to the `modules` object exported as part of the configurations in `medusa-config.ts`. A Cache Module is added under the `cacheService` key. - -For example: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "./src/modules/my-cache", - options: { - // any options - ttl: 30, - }, - }, - ], -}) -``` - - -# In-Memory Cache Module - -The In-Memory Cache Module uses a plain JavaScript Map object to store the cached data. This module is used by default in your Medusa application. - -This module is helpful for development or when you’re testing out Medusa, but it’s not recommended to be used in production. - -For production, it’s recommended to use modules like [Redis Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/redis/index.html.md). - -*** - -## Register the In-Memory Cache Module - -The In-Memory Cache Module is registered by default in your application. - -Add the module into the `modules` property of the exported object in `medusa-config.ts`: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/cache-inmemory", - options: { - // optional options - }, - }, - ], -}) -``` - -### In-Memory Cache Module Options - -|Option|Description|Default| -|---|---|---|---|---| -|\`ttl\`|The number of seconds an item can live in the cache before it’s removed.|\`30\`| +You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking the provider you integrated with (for example, PostHog) for the tracked event. # How to Create an Event Module @@ -32808,176 +32021,181 @@ Local Event Bus installed. This is not recommended for production. ``` -# Redis Cache Module +# Local File Module Provider -The Redis Cache Module uses Redis to cache data in your store. In production, it's recommended to use this module. +The Local File Module Provider stores files uploaded to your Medusa application in the `/uploads` directory. + +- The Local File Module Provider is only for development purposes. Use the [S3 File Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/file/s3/index.html.md) in production instead. +- The Local File Module Provider will only read files uploaded through Medusa. It will not read files uploaded manually to the `static` (or other configured) directory. *** -## Register the Redis Cache Module +## Register the Local File Module -### Prerequisites +The Local File Module Provider is registered by default in your application. -- [Redis installed and Redis server running](https://redis.io/docs/getting-started/installation/) +Add the module into the `providers` array of the File Module: -Add the module into the `modules` property of the exported object in `medusa-config.ts`: +The File Module accepts one provider only. -```ts title="medusa-config.ts" highlights={highlights} +```ts title="medusa-config.ts" import { Modules } from "@medusajs/framework/utils" // ... -module.exports = defineConfig({ +module.exports = { // ... modules: [ { - resolve: "@medusajs/medusa/cache-redis", - options: { - redisUrl: process.env.CACHE_REDIS_URL, - }, - }, - ], -}) -``` - -### Environment Variables - -Make sure to add the following environment variables: - -```bash -CACHE_REDIS_URL= -``` - -### Redis Cache Module Options - -|Option|Description|Required|Default| -|---|---|---|---|---|---|---| -|\`redisUrl\`|A string indicating the Redis connection URL.|Yes|-| -|\`redisOptions\`|An object of Redis options. Refer to the |No|-| -|\`ttl\`|The number of seconds an item can live in the cache before it’s removed.|No|\`30\`| -|\`namespace\`|A string used to prefix all cached keys with |No|\`medusa\`| - -*** - -## Test the Module - -To test the module, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -You'll see the following message in the terminal's logs: - -```bash noCopy noReport -Connection to Redis in module 'cache-redis' established -``` - - -# Redis Locking Module Provider - -The Redis Locking Module Provider uses Redis to manage locks across multiple instances of Medusa. Redis ensures that locks are globally available, which is ideal for distributed environments. - -This provider is recommended for production environments where Medusa is running in a multi-instance setup. - -*** - -## Register the Redis Locking Module Provider - -### Prerequisites - -- [A redis server set up locally or a database in your deployed application.](https://redis.io/download) - -To register the Redis Locking Module Provider, add it to the list of providers of the Locking Module in `medusa-config.ts`: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/locking", + resolve: "@medusajs/medusa/file", options: { providers: [ { - resolve: "@medusajs/medusa/locking-redis", - id: "locking-redis", - // set this if you want this provider to be used by default - // and you have other Locking Module Providers registered. - is_default: true, + resolve: "@medusajs/medusa/file-local", + id: "local", options: { - redisUrl: process.env.LOCKING_REDIS_URL, + // provider options... }, }, ], }, }, ], -}) +} ``` -### Environment Variables +### Local File Module Options -Make sure to add the following environment variable: +|Option|Description|Default| +|---|---|---|---|---| +|\`upload\_dir\`|The directory to upload files to. Medusa exposes the content of the |\`static\`| +|\`backend\_url\`|The URL that serves the files.|\`http://localhost:9000/static\`| -```bash -LOCKING_REDIS_URL= -``` -Where `` is the URL of your Redis server, either locally or in the deployed environment. +# S3 File Module Provider -The default Redis URL in a local environment is `redis://localhost:6379`. +The S3 File Module Provider integrates Amazon S3 and services following a compatible API (such as MinIO or DigitalOcean Spaces) to store files uploaded to your Medusa application. -### Redis Locking Module Provider Options +Medusa Cloud offers a managed file storage solution with AWS S3 for your Medusa application. Contact the [sales team](https://medusajs.com/pricing/) to learn more. -|Option|Description|Required|Default| -|---|---|---|---|---|---|---| -|\`redisUrl\`|A string indicating the Redis connection URL.|Yes|-| -|\`redisOptions\`|An object of Redis options. Refer to the |No|-| -|\`namespace\`|A string used to prefix all locked keys with |No|\`medusa\_lock:\`| -|\`waitLockingTimeout\`|A number indicating the default timeout (in seconds) to wait while acquiring a lock. This timeout is used when no timeout is specified when executing an asynchronous job or acquiring a lock.|No|\`5\`| -|\`defaultRetryInterval\`|A number indicating the time (in milliseconds) to wait before retrying to acquire a lock.|No|\`5\`| -|\`maximumRetryInterval\`|A number indicating the maximum time (in milliseconds) to wait before retrying to acquire a lock.|No|\`200\`| +## Prerequisites + +### AWS S3 + +- [AWS account](https://console.aws.amazon.com/console/home?nc2=h_ct\&src=header-signin). +- Create [AWS user with AmazonS3FullAccess permissions](https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-and-attach-iam-policy.html). +- Create [AWS user access key ID and secret access key](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_access-keys.html#Using_CreateAccessKey). +- Create [S3 bucket](https://docs.aws.amazon.com/AmazonS3/latest/userguide/create-bucket-overview.html) with the "Public Access setting" enabled: + 1. On your bucket's dashboard, click on the Permissions tab. + 2. Click on the Edit button of the Block public access (bucket settings) section. + 3. In the form that opens, don't toggle any checkboxes and click the "Save changes" button. + 4. Confirm saving the changes by entering `confirm` in the pop-up that shows. + 5. Back on the Permissions page, scroll to the Object Ownership section and click the Edit button. + 6. In the form that opens: + - Choose the "ACLs enabled" card. + - Click on the "Save changes" button. + 7. Back on the Permissions page, scroll to the "Access Control List (ACL)" section and click on the Edit button. + 8. In the form that opens, enable the Read permission for "Everyone (public access)". + 9. Check the "I understand the effects of these changes on my objects and buckets." checkbox. + 10. Click on the "Save changes" button. + +### MinIO + +- Create [DigitalOcean account](https://cloud.digitalocean.com/registrations/new). +- Create [DigitalOcean Spaces bucket](https://docs.digitalocean.com/products/spaces/how-to/create/). +- Create [DigitalOcean Spaces access and secret access keys](https://docs.digitalocean.com/products/spaces/how-to/manage-access/#access-keys). + +### DigitalOcean Spaces + +1. Create a [Cloudflare account](https://dash.cloudflare.com/sign-up). +2. Set up your R2 bucket: + - Navigate to R2 Object Storage in your dashboard. You may need to provide your credit-card information. + - Click "Create bucket" + - Enter a unique bucket name + - Select "Automatic" for location + - Choose "Standard" for storage class + - Confirm by clicking "Create bucket" +3. Configure public access: + - On your bucket's dashboard, click on the Settings tab. + - Scroll down to the Public Access section, and click on "Allow Access" in the "R2.dev subdomain" card. + - Type 'allow' to confirm + - Copy the Public R2.dev Bucket URL for your `S3_FILE_URL` +4. Retrieve credentials: + - [Go to API tokens page](https://dash.cloudflare.com/?to=/:account/r2/api-tokens): + - Select "Create API token" + - Edit the "R2 Token" name + - Under Permissions, select Object Read & Write permission types + - You can optionally specify the buckets that this API token has access to under the "Specify bucket(s)" section. + - Once done, click the "Create API Token" button. + - You'll receive an access key ID and a secret access key. Save them to use them later for the `S3_ACCESS_KEY_ID` and `S3_SECRET_ACCESS_KEY` environment variables. + +### Supabase S3 Storage + +### Cloudflare R2 *** -## Test out the Module +## Register the S3 File Module -To test out the Redis Locking Module Provider, start the Medusa application: +Add the module into the `providers` array of the File Module: -```bash npm2yarn -npm run dev +The File Module accepts one provider only. + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = { + // ... + modules: [ + // ... + { + resolve: "@medusajs/medusa/file", + options: { + providers: [ + { + resolve: "@medusajs/medusa/file-s3", + id: "s3", + options: { + file_url: process.env.S3_FILE_URL, + access_key_id: process.env.S3_ACCESS_KEY_ID, + secret_access_key: process.env.S3_SECRET_ACCESS_KEY, + region: process.env.S3_REGION, + bucket: process.env.S3_BUCKET, + endpoint: process.env.S3_ENDPOINT, + // other options... + }, + }, + ], + }, + }, + ], +} ``` -You'll see the following message logged in the terminal: +### Additional Configuration for MinIO and Supabase -```bash -info: Connection to Redis in "locking-redis" provider established -``` +If you're using MinIO or Supabase, set `forcePathStyle` to `true` in the `additional_client_config` object. -This message indicates that the Redis Locking Module Provider has successfully connected to the Redis server. +For example: -If you set the `is_default` flag to `true` in the provider options or you only registered the Redis Locking Module Provider, the Locking Module will use it by default for all locking operations. - -*** - -## Use Provider with Locking Module - -The Redis Locking Module Provider will be the default provider if you don't register any other providers, or if you set the `is_default` flag to `true`: - -```ts title="medusa-config.ts" highlights={defaultHighlights} +```ts title="medusa-config.ts" module.exports = defineConfig({ // ... modules: [ { - resolve: "@medusajs/medusa/locking", + resolve: "@medusajs/medusa/file", options: { providers: [ { - resolve: "@medusajs/medusa/locking-redis", - id: "locking-redis", - is_default: true, + resolve: "@medusajs/medusa/file-s3", + id: "s3", options: { // ... + additional_client_config: { + forcePathStyle: true, + }, }, }, ], @@ -32987,220 +32205,94 @@ module.exports = defineConfig({ }) ``` -If you use the Locking Module in your customizations, the Redis Locking Module Provider will be used by default in this case. You can also explicitly use this provider by passing its identifier `lp_locking-redis` to the Locking Module's service methods. +### S3 File Module Options -For example, when using the `acquire` method in a [workflow step](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md): +|Option|Description|Default| +|---|---|---|---|---| +|\`file\_url\`|The base URL to upload files to.|-| +|\`access\_key\_id\`|The AWS or (S3 compatible) user's access key ID.|-| +|\`secret\_access\_key\`|The AWS or (S3 compatible) user's secret access key.|-| +|\`region\`|The bucket's region code.|-| +|\`bucket\`|The bucket's name.|-| +|\`endpoint\`|The URL to the AWS S3 (or compatible S3 API) server.|-| +|\`prefix\`|A string to prefix each uploaded file's name.|-| +|\`cache\_control\`|A string indicating how long objects remain in the AWS S3 (or compatible S3 API) cache.|\`public, max-age=31536000\`| +|\`download\_file\_duration\`|A number indicating the expiry time of presigned URLs in seconds.|\`3600\`| +|\`additional\_client\_config\`|Any additional configurations to pass to the S3 client.|-| + +*** + +## Troubleshooting + + +# Workflow Engine Module + +In this document, you'll learn what a Workflow Engine Module is and how to use it in your Medusa application. + +## What is a Workflow Engine Module? + +A Workflow Engine Module handles tracking and recording the transactions and statuses of workflows and their steps. It can use custom mechanism or integrate a third-party service. + +### Default Workflow Engine Module + +Medusa uses the [In-Memory Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/in-memory/index.html.md) by default. For production purposes, it's recommended to use the [Redis Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/redis/index.html.md) instead. + +*** + +## How to Use the Workflow Engine Module? + +You can use the registered Workflow Engine Module as part of the [workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) you build for your custom features. A workflow is a special function composed of a series of steps that guarantees data consistency and reliable roll-back mechanism. + +In a step of your workflow, you can resolve the Workflow Engine Module's service and use its methods to track and record the transactions and statuses of workflows and their steps. + +For example: ```ts import { Modules } from "@medusajs/framework/utils" -import { createStep } from "@medusajs/framework/workflows-sdk" +import { + createStep, + createWorkflow, + StepResponse, + WorkflowResponse, +} from "@medusajs/framework/workflows-sdk" const step1 = createStep( "step-1", async ({}, { container }) => { - const lockingModuleService = container.resolve( - Modules.LOCKING + const workflowEngineService = container.resolve( + Modules.WORKFLOW_ENGINE ) - await lockingModuleService.acquire("prod_123", { - provider: "lp_locking-redis", + const [workflowExecution] = await workflowEngineService.listWorkflowExecutions({ + transaction_id: transaction_id, }) + + return new StepResponse(workflowExecution) } ) + +export const workflow = createWorkflow( + "workflow-1", + () => { + const workflowExecution = step1() + + return new WorkflowResponse(workflowExecution) + } +) ``` +In the example above, you create a workflow that has a step. In the step, you resolve the service of the Workflow Engine Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). -# PostgreSQL Locking Module Provider - -The PostgreSQL Locking Module Provider uses PostgreSQL's advisory locks to control and manage locks across multiple instances of Medusa. Advisory locks are lightweight locks that do not interfere with other database transactions. By using PostgreSQL's advisory locks, Medusa can create distributed locks directly through the database. - -The provider uses the existing PostgreSQL database in your application to manage locks, so you don't need to set up a separate database or service to manage locks. - -While this provider is suitable for production environments, it's recommended to use the [Redis Locking Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/locking/redis/index.html.md) if possible. +Then, you use the `listWorkflowExecutions` method of the Workflow Engine Module to list the workflow executions with the transaction ID `transaction_id`. The workflow execution is then returned as a response from the step and the workflow. *** -## Register the PostgreSQL Locking Module Provider +## List of Workflow Engine Modules -To register the PostgreSQL Locking Module Provider, add it to the list of providers of the Locking Module in `medusa-config.ts`: +Medusa provides the following Workflow Engine Modules. -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/locking", - options: { - providers: [ - { - resolve: "@medusajs/medusa/locking-postgres", - id: "locking-postgres", - // set this if you want this provider to be used by default - // and you have other Locking Module Providers registered. - is_default: true, - }, - ], - }, - }, - ], -}) -``` - -### Run Migrations - -The PostgreSQL Locking Module Provider requires a new `locking` table in the database to store the locks. So, you must run the migrations after registering the provider: - -```bash -npx medusa db:migrate -``` - -This will run the migration in the PostgreSQL Locking Module Provider and create the necessary table in the database. - -*** - -## Use Provider with Locking Module - -The PostgreSQL Locking Module Provider will be the default provider if you don't register any other providers, or if you set the `is_default` flag to `true`: - -```ts title="medusa-config.ts" highlights={defaultHighlights} -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/locking", - options: { - providers: [ - { - resolve: "@medusajs/medusa/locking-postgres", - id: "locking-postgres", - is_default: true, - }, - ], - }, - }, - ], -}) -``` - -If you use the Locking Module in your customizations, the PostgreSQL Locking Module Provider will be used by default in this case. You can also explicitly use this provider by passing its identifier `lp_locking-postgres` to the Locking Module's service methods. - -For example, when using the `acquire` method in a [workflow step](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md): - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createStep } from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async ({}, { container }) => { - const lockingModuleService = container.resolve( - Modules.LOCKING - ) - - await lockingModuleService.acquire("prod_123", { - provider: "lp_locking-postgres", - }) - } -) -``` - - -# In-Memory Workflow Engine Module - -The In-Memory Workflow Engine Module uses a plain JavaScript Map object to store the workflow executions. - -This module is helpful for development or when you’re testing out Medusa, but it’s not recommended to be used in production. - -For production, it’s recommended to use modules like [Redis Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/redis/index.html.md). - -*** - -## Register the In-Memory Workflow Engine Module - -The In-Memory Workflow Engine Module is registered by default in your application. - -Add the module into the `modules` property of the exported object in `medusa-config.ts`: - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/workflow-engine-inmemory", - }, - ], -}) -``` - - -# Redis Workflow Engine Module - -The Redis Workflow Engine Module uses Redis to track workflow executions and handle their subscribers. In production, it's recommended to use this module. - -*** - -## Register the Redis Workflow Engine Module - -### Prerequisites - -- [Redis installed and Redis server running](https://redis.io/docs/getting-started/installation/) - -Add the module into the `modules` property of the exported object in `medusa-config.ts`: - -```ts title="medusa-config.ts" highlights={highlights} -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/workflow-engine-redis", - options: { - redis: { - url: process.env.WE_REDIS_URL, - }, - }, - }, - ], -}) -``` - -### Environment Variables - -Make sure to add the following environment variables: - -```bash -WE_REDIS_URL= -``` - -### Redis Workflow Engine Module Options - -|Option|Description|Required|Default| -|---|---|---|---|---|---|---| -|\`url\`|A string indicating the Redis connection URL.|No. If not provided, you must provide the |-| -|\`options\`|An object of Redis options. Refer to the |No|-| -|\`queueName\`|The name of the queue used to keep track of retries and timeouts.|No|\`medusa-workflows\`| -|\`pubsub\`|A connection object having the following properties:|No. If not provided, you must provide the |-| - -## Test the Module - -To test the module, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -You'll see the following message in the terminal's logs: - -```bash noCopy noReport -Connection to Redis in module 'workflow-engine-redis' established -``` +- [In-Memory](https://docs.medusajs.com/infrastructure-modules/workflow-engine/in-memory/index.html.md) +- [Redis](https://docs.medusajs.com/infrastructure-modules/workflow-engine/redis/index.html.md) # Redis Event Module @@ -33273,244 +32365,6 @@ Connection to Redis in module 'event-redis' established ``` -# How to Use the Workflow Engine Module - -In this document, you’ll learn about the different methods in the Workflow Engine Module's service and how to use them. - -*** - -## Resolve Workflow Engine Module's Service - -In your workflow's step, you can resolve the Workflow Engine Module's service from the Medusa container: - -```ts -import { Modules } from "@medusajs/framework/utils" -import { createStep } from "@medusajs/framework/workflows-sdk" - -const step1 = createStep( - "step-1", - async ({}, { container }) => { - const workflowEngineModuleService = container.resolve( - Modules.WORKFLOW_ENGINE - ) - - // TODO use workflowEngineModuleService - } -) -``` - -This will resolve the service of the configured Workflow Engine Module, which is the [In-Memory Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/in-memory/index.html.md) by default. - -You can then use the Workflow Engine Module's service's methods in the step. The rest of this guide details these methods. - -*** - -## setStepSuccess - -This method sets an async step in a currently-executing [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md) as successful. The workflow will then continue to the next step. - -### Example - -```ts -// other imports... -import { - TransactionHandlerType, -} from "@medusajs/framework/utils" - -await workflowEngineModuleService.setStepSuccess({ - idempotencyKey: { - action: TransactionHandlerType.INVOKE, - transactionId, - stepId: "step-2", - workflowId: "hello-world", - }, - stepResponse: new StepResponse("Done!"), - options: { - container, - }, -}) -``` - -### Parameters - -- idempotencyKey: (\`object\`) The details of the step to set as successful. - - - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. - - - transactionId: (\`string\`) The ID of the workflow execution's transaction. - - - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. - - - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. -- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the async step doesn't have a response, you set its response when changing its status. -- options: (\`object\`) Options to pass to the step. - - - container: (\`Container\`) An instance of the Medusa container. - -*** - -## setStepFailure - -This method sets an async step in a currently-executing [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md) as failed. The workflow will then stop executing and the compensation functions of the workflow's steps will be executed. - -### Example - -```ts -// other imports... -import { - TransactionHandlerType, -} from "@medusajs/framework/utils" - -await workflowEngineModuleService.setStepFailure({ - idempotencyKey: { - action: TransactionHandlerType.INVOKE, - transactionId, - stepId: "step-2", - workflowId: "hello-world", - }, - stepResponse: new StepResponse("Failed!"), - options: { - container, - }, -}) -``` - -### Parameters - -- idempotencyKey: (\`object\`) The details of the step to set as failed. - - - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. - - - transactionId: (\`string\`) The ID of the workflow execution's transaction. - - - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. - - - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. -- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the async step doesn't have a response, you set its response when changing its status. -- options: (\`object\`) Options to pass to the step. - - - container: (\`Container\`) An instance of the Medusa container. - -*** - -## subscribe - -This method subscribes to a workflow's events. You can use this method to listen to a [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md)'s events and retrieve its result once it's done executing. - -Refer to the [Long-Running Workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow#access-long-running-workflow-status-and-result/index.html.md) documentation to learn more. - -### Example - -```ts -const { transaction } = await helloWorldWorkflow(container).run() - -const subscriptionOptions = { - workflowId: "hello-world", - transactionId: transaction.transactionId, - subscriberId: "hello-world-subscriber", -} - -await workflowEngineModuleService.subscribe({ - ...subscriptionOptions, - subscriber: async (data) => { - if (data.eventType === "onFinish") { - console.log("Finished execution", data.result) - // unsubscribe - await workflowEngineModuleService.unsubscribe({ - ...subscriptionOptions, - subscriberOrId: subscriptionOptions.subscriberId, - }) - } else if (data.eventType === "onStepFailure") { - console.log("Workflow failed", data.step) - } - }, -}) -``` - -### Parameters - -- subscriptionOptions: (\`object\`) The options for the subscription. - - - workflowId: (\`string\`) The ID of the workflow to subscribe to. This is the first parameter passed to \`createWorkflow\` when creating the workflow. - - - transactionId: (\`string\`) The ID of the workflow execution's transaction. This is returned when you execute a workflow. - - - subscriberId: (\`string\`) A unique ID for the subscriber. It's used to unsubscribe from the workflow's events. - - - subscriber: (\`(data: WorkflowEvent) => void\`) The subscriber function that will be called when the workflow emits an event. - -*** - -## unsubscribe - -This method unsubscribes from a workflow's events. You can use this method to stop listening to a [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md)'s events after you've received the result. - -### Example - -```ts -await workflowEngineModuleService.unsubscribe({ - workflowId: "hello-world", - transactionId: "transaction-id", - subscriberOrId: "hello-world-subscriber", -}) -``` - -### Parameters - -- workflowId: (\`string\`) The ID of the workflow to unsubscribe from. This is the first parameter passed to \`createWorkflow\` when creating the workflow. -- transactionId: (\`string\`) The ID of the workflow execution's transaction. This is returned when you execute a workflow. -- subscriberOrId: (\`string\`) The subscriber ID or the subscriber function to unsubscribe from the workflow's events. - - -# Local Notification Module Provider - -The Local Notification Module Provider simulates sending a notification, but only logs the notification's details in the terminal. This is useful for development. - -*** - -## Register the Local Notification Module - -The Local Notification Module Provider is registered by default in your application. It's configured to run on the `feed` channel. - -Add the module into the `providers` array of the Notification Module: - -Only one provider can be defined for a channel. - -```ts title="medusa-config.ts" -import { Modules } from "@medusajs/framework/utils" - -// ... - -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "@medusajs/medusa/notification", - options: { - providers: [ - // ... - { - resolve: "@medusajs/medusa/notification-local", - id: "local", - options: { - channels: ["email"], - }, - }, - ], - }, - }, - ], -}) -``` - -### Local Notification Module Options - -|Option|Description| -|---|---|---| -|\`channels\`|The channels this notification module is used to send notifications for. While the local notification module doesn't actually send the notification, -it's important to specify its channels to make sure it's used when a notification for that channel is created.| - - # Send Notification with the Notification Module In this guide, you'll learn about the different ways to send notifications using the Notification Module. @@ -33632,6 +32486,55 @@ export const config: SubscriberConfig = { ``` +# Local Notification Module Provider + +The Local Notification Module Provider simulates sending a notification, but only logs the notification's details in the terminal. This is useful for development. + +*** + +## Register the Local Notification Module + +The Local Notification Module Provider is registered by default in your application. It's configured to run on the `feed` channel. + +Add the module into the `providers` array of the Notification Module: + +Only one provider can be defined for a channel. + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/notification", + options: { + providers: [ + // ... + { + resolve: "@medusajs/medusa/notification-local", + id: "local", + options: { + channels: ["email"], + }, + }, + ], + }, + }, + ], +}) +``` + +### Local Notification Module Options + +|Option|Description| +|---|---|---| +|\`channels\`|The channels this notification module is used to send notifications for. While the local notification module doesn't actually send the notification, +it's important to specify its channels to make sure it's used when a notification for that channel is created.| + + # SendGrid Notification Module Provider The SendGrid Notification Module Provider integrates [SendGrid](https://sendgrid.com) to send emails to users and customers. @@ -33848,635 +32751,1734 @@ export const config: SubscriberConfig = { This subscriber will run every time a product is created, and it will execute the `sendEmailWorkflow` to send an email using SendGrid. +# PostgreSQL Locking Module Provider + +The PostgreSQL Locking Module Provider uses PostgreSQL's advisory locks to control and manage locks across multiple instances of Medusa. Advisory locks are lightweight locks that do not interfere with other database transactions. By using PostgreSQL's advisory locks, Medusa can create distributed locks directly through the database. + +The provider uses the existing PostgreSQL database in your application to manage locks, so you don't need to set up a separate database or service to manage locks. + +While this provider is suitable for production environments, it's recommended to use the [Redis Locking Module Provider](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/locking/redis/index.html.md) if possible. + +*** + +## Register the PostgreSQL Locking Module Provider + +To register the PostgreSQL Locking Module Provider, add it to the list of providers of the Locking Module in `medusa-config.ts`: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/locking", + options: { + providers: [ + { + resolve: "@medusajs/medusa/locking-postgres", + id: "locking-postgres", + // set this if you want this provider to be used by default + // and you have other Locking Module Providers registered. + is_default: true, + }, + ], + }, + }, + ], +}) +``` + +### Run Migrations + +The PostgreSQL Locking Module Provider requires a new `locking` table in the database to store the locks. So, you must run the migrations after registering the provider: + +```bash +npx medusa db:migrate +``` + +This will run the migration in the PostgreSQL Locking Module Provider and create the necessary table in the database. + +*** + +## Use Provider with Locking Module + +The PostgreSQL Locking Module Provider will be the default provider if you don't register any other providers, or if you set the `is_default` flag to `true`: + +```ts title="medusa-config.ts" highlights={defaultHighlights} +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/locking", + options: { + providers: [ + { + resolve: "@medusajs/medusa/locking-postgres", + id: "locking-postgres", + is_default: true, + }, + ], + }, + }, + ], +}) +``` + +If you use the Locking Module in your customizations, the PostgreSQL Locking Module Provider will be used by default in this case. You can also explicitly use this provider by passing its identifier `lp_locking-postgres` to the Locking Module's service methods. + +For example, when using the `acquire` method in a [workflow step](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md): + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createStep } from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async ({}, { container }) => { + const lockingModuleService = container.resolve( + Modules.LOCKING + ) + + await lockingModuleService.acquire("prod_123", { + provider: "lp_locking-postgres", + }) + } +) +``` + + +# How to Create a Cache Module + +In this guide, you’ll learn how to create a Cache Module. + +## 1. Create Module Directory + +Start by creating a new directory for your module. For example, `src/modules/my-cache`. + +*** + +## 2. Create the Cache Service + +Create the file `src/modules/my-cache/service.ts` that holds the implementation of the cache service. + +The Cache Module's main service must implement the `ICacheService` interface imported from `@medusajs/framework/types`: + +```ts title="src/modules/my-cache/service.ts" +import { ICacheService } from "@medusajs/framework/types" + +class MyCacheService implements ICacheService { + get(key: string): Promise { + throw new Error("Method not implemented.") + } + set(key: string, data: unknown, ttl?: number): Promise { + throw new Error("Method not implemented.") + } + invalidate(key: string): Promise { + throw new Error("Method not implemented.") + } +} + +export default MyCacheService +``` + +The service implements the required methods based on the desired caching mechanism. + +### Implement get Method + +The `get` method retrieves the value of a cached item based on its key. + +The method accepts a string as a first parameter, which is the key in the cache. It either returns the cached item or `null` if it doesn’t exist. + +For example, to implement this method using Memcached: + +```ts title="src/modules/my-cache/service.ts" +class MyCacheService implements ICacheService { + // ... + async get(cacheKey: string): Promise { + return new Promise((res, rej) => { + this.memcached.get(cacheKey, (err, data) => { + if (err) { + res(null) + } else { + if (data) { + res(JSON.parse(data)) + } else { + res(null) + } + } + }) + }) + } +} +``` + +### Implement set Method + +The `set` method is used to set an item in the cache. It accepts three parameters: + +1. The first parameter is a string indicating the key of the data being added to the cache. This key can be used later to get or invalidate the cached item. +2. The second parameter is the data to be added to the cache. The data can be of any type. +3. The third parameter is optional. It’s a number indicating how long (in seconds) the data should be kept in the cache. + +For example, to implement this method using Memcached: + +```ts title="src/modules/my-cache/service.ts" +class MyCacheService implements ICacheService { + protected TTL = 60 + // ... + async set( + key: string, + data: Record, + ttl: number = this.TTL // or any value + ): Promise { + return new Promise((res, rej) => + this.memcached.set( + key, JSON.stringify(data), ttl, (err) => { + if (err) { + rej(err) + } else { + res() + } + }) + ) + } +} +``` + +### Implement invalidate Method + +The `invalidate` method removes an item from the cache using its key. + +By default, items are removed from the cache when their time-to-live (ttl) expires. The `invalidate` method can be used to remove the item beforehand. + +The method accepts a string as a first parameter, which is the key of the item to invalidate and remove from the cache. + +For example, to implement this method using Memcached: + +```ts title="src/modules/my-cache/service.ts" +class MyCacheService implements ICacheService { + // ... + async invalidate(key: string): Promise { + return new Promise((res, rej) => { + this.memcached.del(key, (err) => { + if (err) { + rej(err) + } else { + res() + } + }) + }) + } +} +``` + +*** + +## 3. Create Module Definition File + +Create the file `src/modules/my-cache/index.ts` with the following content: + +```ts title="src/modules/my-cache/index.ts" +import MyCacheService from "./service" +import { Module } from "@medusajs/framework/utils" + +export default Module("my-cache", { + service: MyCacheService, +}) +``` + +This exports the module's definition, indicating that the `MyCacheService` is the main service of the module. + +*** + +## 4. Use Module + +To use your Cache Module, add it to the `modules` object exported as part of the configurations in `medusa-config.ts`. A Cache Module is added under the `cacheService` key. + +For example: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "./src/modules/my-cache", + options: { + // any options + ttl: 30, + }, + }, + ], +}) +``` + + +# Redis Locking Module Provider + +The Redis Locking Module Provider uses Redis to manage locks across multiple instances of Medusa. Redis ensures that locks are globally available, which is ideal for distributed environments. + +This provider is recommended for production environments where Medusa is running in a multi-instance setup. + +*** + +## Register the Redis Locking Module Provider + +### Prerequisites + +- [A redis server set up locally or a database in your deployed application.](https://redis.io/download) + +To register the Redis Locking Module Provider, add it to the list of providers of the Locking Module in `medusa-config.ts`: + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/locking", + options: { + providers: [ + { + resolve: "@medusajs/medusa/locking-redis", + id: "locking-redis", + // set this if you want this provider to be used by default + // and you have other Locking Module Providers registered. + is_default: true, + options: { + redisUrl: process.env.LOCKING_REDIS_URL, + }, + }, + ], + }, + }, + ], +}) +``` + +### Environment Variables + +Make sure to add the following environment variable: + +```bash +LOCKING_REDIS_URL= +``` + +Where `` is the URL of your Redis server, either locally or in the deployed environment. + +The default Redis URL in a local environment is `redis://localhost:6379`. + +### Redis Locking Module Provider Options + +|Option|Description|Required|Default| +|---|---|---|---|---|---|---| +|\`redisUrl\`|A string indicating the Redis connection URL.|Yes|-| +|\`redisOptions\`|An object of Redis options. Refer to the |No|-| +|\`namespace\`|A string used to prefix all locked keys with |No|\`medusa\_lock:\`| +|\`waitLockingTimeout\`|A number indicating the default timeout (in seconds) to wait while acquiring a lock. This timeout is used when no timeout is specified when executing an asynchronous job or acquiring a lock.|No|\`5\`| +|\`defaultRetryInterval\`|A number indicating the time (in milliseconds) to wait before retrying to acquire a lock.|No|\`5\`| +|\`maximumRetryInterval\`|A number indicating the maximum time (in milliseconds) to wait before retrying to acquire a lock.|No|\`200\`| + +*** + +## Test out the Module + +To test out the Redis Locking Module Provider, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +You'll see the following message logged in the terminal: + +```bash +info: Connection to Redis in "locking-redis" provider established +``` + +This message indicates that the Redis Locking Module Provider has successfully connected to the Redis server. + +If you set the `is_default` flag to `true` in the provider options or you only registered the Redis Locking Module Provider, the Locking Module will use it by default for all locking operations. + +*** + +## Use Provider with Locking Module + +The Redis Locking Module Provider will be the default provider if you don't register any other providers, or if you set the `is_default` flag to `true`: + +```ts title="medusa-config.ts" highlights={defaultHighlights} +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/locking", + options: { + providers: [ + { + resolve: "@medusajs/medusa/locking-redis", + id: "locking-redis", + is_default: true, + options: { + // ... + }, + }, + ], + }, + }, + ], +}) +``` + +If you use the Locking Module in your customizations, the Redis Locking Module Provider will be used by default in this case. You can also explicitly use this provider by passing its identifier `lp_locking-redis` to the Locking Module's service methods. + +For example, when using the `acquire` method in a [workflow step](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md): + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createStep } from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async ({}, { container }) => { + const lockingModuleService = container.resolve( + Modules.LOCKING + ) + + await lockingModuleService.acquire("prod_123", { + provider: "lp_locking-redis", + }) + } +) +``` + + +# In-Memory Cache Module + +The In-Memory Cache Module uses a plain JavaScript Map object to store the cached data. This module is used by default in your Medusa application. + +This module is helpful for development or when you’re testing out Medusa, but it’s not recommended to be used in production. + +For production, it’s recommended to use modules like [Redis Cache Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/cache/redis/index.html.md). + +*** + +## Register the In-Memory Cache Module + +The In-Memory Cache Module is registered by default in your application. + +Add the module into the `modules` property of the exported object in `medusa-config.ts`: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/cache-inmemory", + options: { + // optional options + }, + }, + ], +}) +``` + +### In-Memory Cache Module Options + +|Option|Description|Default| +|---|---|---|---|---| +|\`ttl\`|The number of seconds an item can live in the cache before it’s removed.|\`30\`| + + +# Redis Cache Module + +The Redis Cache Module uses Redis to cache data in your store. In production, it's recommended to use this module. + +*** + +## Register the Redis Cache Module + +### Prerequisites + +- [Redis installed and Redis server running](https://redis.io/docs/getting-started/installation/) + +Add the module into the `modules` property of the exported object in `medusa-config.ts`: + +```ts title="medusa-config.ts" highlights={highlights} +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/cache-redis", + options: { + redisUrl: process.env.CACHE_REDIS_URL, + }, + }, + ], +}) +``` + +### Environment Variables + +Make sure to add the following environment variables: + +```bash +CACHE_REDIS_URL= +``` + +### Redis Cache Module Options + +|Option|Description|Required|Default| +|---|---|---|---|---|---|---| +|\`redisUrl\`|A string indicating the Redis connection URL.|Yes|-| +|\`redisOptions\`|An object of Redis options. Refer to the |No|-| +|\`ttl\`|The number of seconds an item can live in the cache before it’s removed.|No|\`30\`| +|\`namespace\`|A string used to prefix all cached keys with |No|\`medusa\`| + +*** + +## Test the Module + +To test the module, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +You'll see the following message in the terminal's logs: + +```bash noCopy noReport +Connection to Redis in module 'cache-redis' established +``` + + +# Local Analytics Module Provider + +The Local Analytics Module Provider is a simple analytics provider for Medusa that logs analytics events to the console. It's useful for development and debugging purposes. + +The Analytics Module and its providers are available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). + +*** + +## Register the Local Analytics Module + +Add the module into the `provider` object of the Analytics Module: + +You can use only one Analytics Module Provider in your Medusa application. + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/analytics", + options: { + provider: { + resolve: "@medusajs/analytics-local", + id: "local", + }, + }, + }, + ], +}) +``` + +*** + +## Test out the Module + +To test the module out, you'll track in the console when an order is placed. + +You'll first create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) that tracks the order completion event. Then, you can execute the workflow in a [subscriber](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md) that listens to the `order.placed` event. + +For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: + +```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} +import { createWorkflow } from "@medusajs/framework/workflows-sdk" +import { createStep } from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" +import { OrderDTO } from "@medusajs/framework/types" + +type StepInput = { + order: OrderDTO +} + +const trackOrderCreatedStep = createStep( + "track-order-created-step", + async ({ order }: StepInput, { container }) => { + const analyticsModuleService = container.resolve(Modules.ANALYTICS) + + await analyticsModuleService.track({ + event: "order_created", + userId: order.customer_id, + properties: { + order_id: order.id, + total: order.total, + items: order.items.map((item) => ({ + variant_id: item.variant_id, + product_id: item.product_id, + quantity: item.quantity, + })), + customer_id: order.customer_id, + }, + }) + } +) + +type WorkflowInput = { + order_id: string +} + +export const trackOrderCreatedWorkflow = createWorkflow( + "track-order-created-workflow", + ({ order_id }: WorkflowInput) => { + const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "*", + "customer.*", + "items.*", + ], + filters: { + id: order_id, + }, + }) + trackOrderCreatedStep({ + order: orders[0], + }) + } +) +``` + +This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. + +In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured (which is the Local Analytics Module Provider, in this case) to track the event. + +Next, create a subscriber at `src/subscribers/order-placed.ts` with the following content: + +```ts title="src/subscribers/order-placed.ts" +import type { + SubscriberArgs, + SubscriberConfig, +} from "@medusajs/framework" +import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" + +export default async function orderPlacedHandler({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + await trackOrderCreatedWorkflow(container).run({ + input: { + order_id: data.id, + }, + }) +} + +export const config: SubscriberConfig = { + event: "order.placed", +} +``` + +This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. + +You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking the console for the tracked event. + +*** + +## Additional Resources + +- [How to Use the Analytics Module](https://docs.medusajs.com/references/analytics/service/index.html.md) + + +# In-Memory Workflow Engine Module + +The In-Memory Workflow Engine Module uses a plain JavaScript Map object to store the workflow executions. + +This module is helpful for development or when you’re testing out Medusa, but it’s not recommended to be used in production. + +For production, it’s recommended to use modules like [Redis Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/redis/index.html.md). + +*** + +## Register the In-Memory Workflow Engine Module + +The In-Memory Workflow Engine Module is registered by default in your application. + +Add the module into the `modules` property of the exported object in `medusa-config.ts`: + +```ts title="medusa-config.ts" +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/workflow-engine-inmemory", + }, + ], +}) +``` + + +# Redis Workflow Engine Module + +The Redis Workflow Engine Module uses Redis to track workflow executions and handle their subscribers. In production, it's recommended to use this module. + +*** + +## Register the Redis Workflow Engine Module + +### Prerequisites + +- [Redis installed and Redis server running](https://redis.io/docs/getting-started/installation/) + +Add the module into the `modules` property of the exported object in `medusa-config.ts`: + +```ts title="medusa-config.ts" highlights={highlights} +import { Modules } from "@medusajs/framework/utils" + +// ... + +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/workflow-engine-redis", + options: { + redis: { + url: process.env.WE_REDIS_URL, + }, + }, + }, + ], +}) +``` + +### Environment Variables + +Make sure to add the following environment variables: + +```bash +WE_REDIS_URL= +``` + +### Redis Workflow Engine Module Options + +|Option|Description|Required|Default| +|---|---|---|---|---|---|---| +|\`url\`|A string indicating the Redis connection URL.|No. If not provided, you must provide the |-| +|\`options\`|An object of Redis options. Refer to the |No|-| +|\`queueName\`|The name of the queue used to keep track of retries and timeouts.|No|\`medusa-workflows\`| +|\`pubsub\`|A connection object having the following properties:|No. If not provided, you must provide the |-| + +## Test the Module + +To test the module, start the Medusa application: + +```bash npm2yarn +npm run dev +``` + +You'll see the following message in the terminal's logs: + +```bash noCopy noReport +Connection to Redis in module 'workflow-engine-redis' established +``` + + +# PostHog Analytics Module Provider + +The PostHog Analytics Module Provider allows you to integrate [PostHog](https://posthog.com/) with Medusa. + +PostHog is an open-source product analytics platform that helps you track user interactions and analyze user behavior in your commerce application. + +By integrating PostHog with Medusa, you can track events such as cart additions, order completions, and user sign-ups, enabling you to gain insights into user behavior and optimize your application accordingly. + +The Analytics Module and its providers are available starting [Medusa v2.8.3](https://github.com/medusajs/medusa/releases/tag/v2.8.3). + +*** + +## Register the PostHog Analytics Module + +### Prerequisites + +- [PostHog account](https://app.posthog.com/signup) +- [PostHog API Key](https://posthog.com/docs/getting-started/api-key) + +Add the module into the `provider` object of the Analytics Module: + +You can use only one provider in your Medusa application. + +```ts title="medusa-config.ts" +module.exports = defineConfig({ + // ... + modules: [ + { + resolve: "@medusajs/medusa/analytics", + options: { + provider: { + resolve: "@medusajs/analytics-posthog", + id: "posthog", + options: { + posthogEventsKey: process.env.POSTHOG_EVENTS_API_KEY, + posthogHost: process.env.POSTHOG_HOST, + }, + }, + }, + }, + ], +}) +``` + +### Environment Variables + +Make sure to add the following environment variables: + +```bash +POSTHOG_EVENTS_API_KEY= +POSTHOG_HOST= +``` + +### PostHog Analytics Module Options + +|Option|Description|Default| +|---|---|---| +|\`eventsKey\`|The PostHog API key for tracking events. This is required to authenticate your requests to the PostHog API.|-| +|\`posthogHost\`|The PostHog API host URL.|\`https://eu.i.posthog.com\`| + +*** + +## Test out the Module + +To test the module out, you'll track in PostHog when an order is placed. + +You'll first create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) that tracks the order completion event. Then, you can execute the workflow in a [subscriber](https://docs.medusajs.com/docs/learn/fundamentals/events-and-subscribers/index.html.md) that listens to the `order.placed` event. + +For example, create a workflow at `src/workflows/track-order-placed.ts` with the following content: + +```ts title="src/workflows/track-order-created.ts" highlights={workflowHighlights} +import { createWorkflow } from "@medusajs/framework/workflows-sdk" +import { createStep } from "@medusajs/framework/workflows-sdk" +import { Modules } from "@medusajs/framework/utils" +import { OrderDTO } from "@medusajs/framework/types" + +type StepInput = { + order: OrderDTO +} + +const trackOrderCreatedStep = createStep( + "track-order-created-step", + async ({ order }: StepInput, { container }) => { + const analyticsModuleService = container.resolve(Modules.ANALYTICS) + + await analyticsModuleService.track({ + event: "order_created", + userId: order.customer_id, + properties: { + order_id: order.id, + total: order.total, + items: order.items.map((item) => ({ + variant_id: item.variant_id, + product_id: item.product_id, + quantity: item.quantity, + })), + customer_id: order.customer_id, + }, + }) + } +) + +type WorkflowInput = { + order_id: string +} + +export const trackOrderCreatedWorkflow = createWorkflow( + "track-order-created-workflow", + ({ order_id }: WorkflowInput) => { + const { data: orders } = useQueryGraphStep({ + entity: "order", + fields: [ + "*", + "customer.*", + "items.*", + ], + filters: { + id: order_id, + }, + }) + trackOrderCreatedStep({ + order: orders[0], + }) + } +) +``` + +This workflow retrieves the order details using the `useQueryGraphStep` and then tracks the order creation event using the `trackOrderCreatedStep`. + +In the step, you resolve the service of the Analytics Module from the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) and use its `track` method to track the event. This method will use the underlying provider configured (which is the PostHog Analytics Module Provider, in this case) to track the event. + +Next, create a subscriber at `src/subscribers/order-placed.ts` with the following content: + +```ts title="src/subscribers/order-placed.ts" +import type { + SubscriberArgs, + SubscriberConfig, +} from "@medusajs/framework" +import { trackOrderCreatedWorkflow } from "../workflows/track-order-created" + +export default async function orderPlacedHandler({ + event: { data }, + container, +}: SubscriberArgs<{ id: string }>) { + await trackOrderCreatedWorkflow(container).run({ + input: { + order_id: data.id, + }, + }) +} + +export const config: SubscriberConfig = { + event: "order.placed", +} +``` + +This subscriber listens to the `order.placed` event and executes the `trackOrderCreatedWorkflow` workflow, passing the order ID as input. + +You'll now track the order creation event whenever an order is placed in your Medusa application. You can test this out by placing an order and checking your PostHog dashboard for the tracked event. + +*** + +## Additional Resources + +- [How to Use the Analytics Module](https://docs.medusajs.com/references/analytics/service/index.html.md) + + +# How to Use the Workflow Engine Module + +In this document, you’ll learn about the different methods in the Workflow Engine Module's service and how to use them. + +*** + +## Resolve Workflow Engine Module's Service + +In your workflow's step, you can resolve the Workflow Engine Module's service from the Medusa container: + +```ts +import { Modules } from "@medusajs/framework/utils" +import { createStep } from "@medusajs/framework/workflows-sdk" + +const step1 = createStep( + "step-1", + async ({}, { container }) => { + const workflowEngineModuleService = container.resolve( + Modules.WORKFLOW_ENGINE + ) + + // TODO use workflowEngineModuleService + } +) +``` + +This will resolve the service of the configured Workflow Engine Module, which is the [In-Memory Workflow Engine Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/infrastructure-modules/workflow-engine/in-memory/index.html.md) by default. + +You can then use the Workflow Engine Module's service's methods in the step. The rest of this guide details these methods. + +*** + +## setStepSuccess + +This method sets an async step in a currently-executing [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md) as successful. The workflow will then continue to the next step. + +### Example + +```ts +// other imports... +import { + TransactionHandlerType, +} from "@medusajs/framework/utils" + +await workflowEngineModuleService.setStepSuccess({ + idempotencyKey: { + action: TransactionHandlerType.INVOKE, + transactionId, + stepId: "step-2", + workflowId: "hello-world", + }, + stepResponse: new StepResponse("Done!"), + options: { + container, + }, +}) +``` + +### Parameters + +- idempotencyKey: (\`object\`) The details of the step to set as successful. + + - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. + + - transactionId: (\`string\`) The ID of the workflow execution's transaction. + + - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. + + - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. +- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the async step doesn't have a response, you set its response when changing its status. +- options: (\`object\`) Options to pass to the step. + + - container: (\`Container\`) An instance of the Medusa container. + +*** + +## setStepFailure + +This method sets an async step in a currently-executing [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md) as failed. The workflow will then stop executing and the compensation functions of the workflow's steps will be executed. + +### Example + +```ts +// other imports... +import { + TransactionHandlerType, +} from "@medusajs/framework/utils" + +await workflowEngineModuleService.setStepFailure({ + idempotencyKey: { + action: TransactionHandlerType.INVOKE, + transactionId, + stepId: "step-2", + workflowId: "hello-world", + }, + stepResponse: new StepResponse("Failed!"), + options: { + container, + }, +}) +``` + +### Parameters + +- idempotencyKey: (\`object\`) The details of the step to set as failed. + + - action: (\`invoke\` | \`compensate\`) If the step's compensation function is running, use \`compensate\`. Otherwise, use \`invoke\`. + + - transactionId: (\`string\`) The ID of the workflow execution's transaction. + + - stepId: (\`string\`) The ID of the step to change its status. This is the first parameter passed to \`createStep\` when creating the step. + + - workflowId: (\`string\`) The ID of the workflow. This is the first parameter passed to \`createWorkflow\` when creating the workflow. +- stepResponse: (\`StepResponse\`) Set the response of the step. This is similar to the response you return in a step's definition, but since the async step doesn't have a response, you set its response when changing its status. +- options: (\`object\`) Options to pass to the step. + + - container: (\`Container\`) An instance of the Medusa container. + +*** + +## subscribe + +This method subscribes to a workflow's events. You can use this method to listen to a [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md)'s events and retrieve its result once it's done executing. + +Refer to the [Long-Running Workflows](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow#access-long-running-workflow-status-and-result/index.html.md) documentation to learn more. + +### Example + +```ts +const { transaction } = await helloWorldWorkflow(container).run() + +const subscriptionOptions = { + workflowId: "hello-world", + transactionId: transaction.transactionId, + subscriberId: "hello-world-subscriber", +} + +await workflowEngineModuleService.subscribe({ + ...subscriptionOptions, + subscriber: async (data) => { + if (data.eventType === "onFinish") { + console.log("Finished execution", data.result) + // unsubscribe + await workflowEngineModuleService.unsubscribe({ + ...subscriptionOptions, + subscriberOrId: subscriptionOptions.subscriberId, + }) + } else if (data.eventType === "onStepFailure") { + console.log("Workflow failed", data.step) + } + }, +}) +``` + +### Parameters + +- subscriptionOptions: (\`object\`) The options for the subscription. + + - workflowId: (\`string\`) The ID of the workflow to subscribe to. This is the first parameter passed to \`createWorkflow\` when creating the workflow. + + - transactionId: (\`string\`) The ID of the workflow execution's transaction. This is returned when you execute a workflow. + + - subscriberId: (\`string\`) A unique ID for the subscriber. It's used to unsubscribe from the workflow's events. + + - subscriber: (\`(data: WorkflowEvent) => void\`) The subscriber function that will be called when the workflow emits an event. + +*** + +## unsubscribe + +This method unsubscribes from a workflow's events. You can use this method to stop listening to a [long-running workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/long-running-workflow/index.html.md)'s events after you've received the result. + +### Example + +```ts +await workflowEngineModuleService.unsubscribe({ + workflowId: "hello-world", + transactionId: "transaction-id", + subscriberOrId: "hello-world-subscriber", +}) +``` + +### Parameters + +- workflowId: (\`string\`) The ID of the workflow to unsubscribe from. This is the first parameter passed to \`createWorkflow\` when creating the workflow. +- transactionId: (\`string\`) The ID of the workflow execution's transaction. This is returned when you execute a workflow. +- subscriberOrId: (\`string\`) The subscriber ID or the subscriber function to unsubscribe from the workflow's events. + + ## Workflows -- [createCustomerAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerAccountWorkflow/index.html.md) -- [createCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerAddressesWorkflow/index.html.md) -- [deleteCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCustomerAddressesWorkflow/index.html.md) -- [deleteCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCustomersWorkflow/index.html.md) -- [removeCustomerAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeCustomerAccountWorkflow/index.html.md) -- [updateCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCustomersWorkflow/index.html.md) -- [updateCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCustomerAddressesWorkflow/index.html.md) -- [createCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomersWorkflow/index.html.md) +- [createApiKeysWorkflow](https://docs.medusajs.com/references/medusa-workflows/createApiKeysWorkflow/index.html.md) - [deleteApiKeysWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteApiKeysWorkflow/index.html.md) +- [linkSalesChannelsToApiKeyWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkSalesChannelsToApiKeyWorkflow/index.html.md) - [revokeApiKeysWorkflow](https://docs.medusajs.com/references/medusa-workflows/revokeApiKeysWorkflow/index.html.md) - [updateApiKeysWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateApiKeysWorkflow/index.html.md) - [generateResetPasswordTokenWorkflow](https://docs.medusajs.com/references/medusa-workflows/generateResetPasswordTokenWorkflow/index.html.md) -- [createApiKeysWorkflow](https://docs.medusajs.com/references/medusa-workflows/createApiKeysWorkflow/index.html.md) -- [linkSalesChannelsToApiKeyWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkSalesChannelsToApiKeyWorkflow/index.html.md) - [addShippingMethodToCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/addShippingMethodToCartWorkflow/index.html.md) -- [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) - [addToCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/addToCartWorkflow/index.html.md) +- [completeCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeCartWorkflow/index.html.md) - [createCartCreditLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCartCreditLinesWorkflow/index.html.md) -- [createPaymentCollectionForCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPaymentCollectionForCartWorkflow/index.html.md) - [createCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCartWorkflow/index.html.md) - [confirmVariantInventoryWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmVariantInventoryWorkflow/index.html.md) -- [deleteCartCreditLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCartCreditLinesWorkflow/index.html.md) +- [createPaymentCollectionForCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPaymentCollectionForCartWorkflow/index.html.md) - [listShippingOptionsForCartWithPricingWorkflow](https://docs.medusajs.com/references/medusa-workflows/listShippingOptionsForCartWithPricingWorkflow/index.html.md) +- [deleteCartCreditLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCartCreditLinesWorkflow/index.html.md) - [listShippingOptionsForCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/listShippingOptionsForCartWorkflow/index.html.md) - [refreshCartShippingMethodsWorkflow](https://docs.medusajs.com/references/medusa-workflows/refreshCartShippingMethodsWorkflow/index.html.md) -- [refreshPaymentCollectionForCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/refreshPaymentCollectionForCartWorkflow/index.html.md) -- [refundPaymentAndRecreatePaymentSessionWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentAndRecreatePaymentSessionWorkflow/index.html.md) - [refreshCartItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/refreshCartItemsWorkflow/index.html.md) +- [refreshPaymentCollectionForCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/refreshPaymentCollectionForCartWorkflow/index.html.md) +- [transferCartCustomerWorkflow](https://docs.medusajs.com/references/medusa-workflows/transferCartCustomerWorkflow/index.html.md) - [updateCartPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCartPromotionsWorkflow/index.html.md) - [updateCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCartWorkflow/index.html.md) -- [transferCartCustomerWorkflow](https://docs.medusajs.com/references/medusa-workflows/transferCartCustomerWorkflow/index.html.md) -- [updateTaxLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateTaxLinesWorkflow/index.html.md) -- [validateExistingPaymentCollectionStep](https://docs.medusajs.com/references/medusa-workflows/validateExistingPaymentCollectionStep/index.html.md) +- [refundPaymentAndRecreatePaymentSessionWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentAndRecreatePaymentSessionWorkflow/index.html.md) - [updateLineItemInCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateLineItemInCartWorkflow/index.html.md) -- [createCustomerGroupsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerGroupsWorkflow/index.html.md) +- [validateExistingPaymentCollectionStep](https://docs.medusajs.com/references/medusa-workflows/validateExistingPaymentCollectionStep/index.html.md) +- [updateTaxLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateTaxLinesWorkflow/index.html.md) +- [createCustomerAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerAccountWorkflow/index.html.md) +- [createCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerAddressesWorkflow/index.html.md) +- [createCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomersWorkflow/index.html.md) +- [deleteCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCustomerAddressesWorkflow/index.html.md) +- [removeCustomerAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeCustomerAccountWorkflow/index.html.md) +- [updateCustomerAddressesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCustomerAddressesWorkflow/index.html.md) +- [updateCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCustomersWorkflow/index.html.md) +- [batchLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchLinksWorkflow/index.html.md) +- [createLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/createLinksWorkflow/index.html.md) +- [dismissLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/dismissLinksWorkflow/index.html.md) +- [updateLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateLinksWorkflow/index.html.md) - [deleteCustomerGroupsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCustomerGroupsWorkflow/index.html.md) - [linkCustomerGroupsToCustomerWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkCustomerGroupsToCustomerWorkflow/index.html.md) - [linkCustomersToCustomerGroupWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkCustomersToCustomerGroupWorkflow/index.html.md) +- [createCustomerGroupsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCustomerGroupsWorkflow/index.html.md) - [updateCustomerGroupsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCustomerGroupsWorkflow/index.html.md) -- [addDraftOrderPromotionWorkflow](https://docs.medusajs.com/references/medusa-workflows/addDraftOrderPromotionWorkflow/index.html.md) +- [deleteCustomersWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCustomersWorkflow/index.html.md) +- [createDefaultsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createDefaultsWorkflow/index.html.md) - [addDraftOrderItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/addDraftOrderItemsWorkflow/index.html.md) +- [addDraftOrderPromotionWorkflow](https://docs.medusajs.com/references/medusa-workflows/addDraftOrderPromotionWorkflow/index.html.md) - [addDraftOrderShippingMethodsWorkflow](https://docs.medusajs.com/references/medusa-workflows/addDraftOrderShippingMethodsWorkflow/index.html.md) -- [cancelDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelDraftOrderEditWorkflow/index.html.md) -- [confirmDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmDraftOrderEditWorkflow/index.html.md) - [beginDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginDraftOrderEditWorkflow/index.html.md) -- [removeDraftOrderActionItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderActionItemWorkflow/index.html.md) -- [removeDraftOrderActionShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderActionShippingMethodWorkflow/index.html.md) +- [cancelDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelDraftOrderEditWorkflow/index.html.md) +- [convertDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/convertDraftOrderStep/index.html.md) - [convertDraftOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/convertDraftOrderWorkflow/index.html.md) +- [confirmDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmDraftOrderEditWorkflow/index.html.md) +- [removeDraftOrderActionItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderActionItemWorkflow/index.html.md) - [removeDraftOrderPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderPromotionsWorkflow/index.html.md) - [removeDraftOrderShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderShippingMethodWorkflow/index.html.md) -- [updateDraftOrderActionItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderActionItemWorkflow/index.html.md) -- [convertDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/convertDraftOrderStep/index.html.md) - [requestDraftOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/requestDraftOrderEditWorkflow/index.html.md) -- [updateDraftOrderShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderShippingMethodWorkflow/index.html.md) -- [updateDraftOrderItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderItemWorkflow/index.html.md) -- [updateDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderStep/index.html.md) +- [updateDraftOrderActionItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderActionItemWorkflow/index.html.md) - [updateDraftOrderActionShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderActionShippingMethodWorkflow/index.html.md) +- [updateDraftOrderItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderItemWorkflow/index.html.md) +- [updateDraftOrderShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderShippingMethodWorkflow/index.html.md) +- [updateDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderStep/index.html.md) - [updateDraftOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateDraftOrderWorkflow/index.html.md) +- [removeDraftOrderActionShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeDraftOrderActionShippingMethodWorkflow/index.html.md) - [deleteFilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteFilesWorkflow/index.html.md) - [uploadFilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/uploadFilesWorkflow/index.html.md) -- [batchShippingOptionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchShippingOptionRulesWorkflow/index.html.md) -- [calculateShippingOptionsPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/calculateShippingOptionsPricesWorkflow/index.html.md) -- [cancelFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelFulfillmentWorkflow/index.html.md) -- [createReturnFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnFulfillmentWorkflow/index.html.md) -- [createShipmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShipmentWorkflow/index.html.md) -- [createShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShippingOptionsWorkflow/index.html.md) -- [createFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createFulfillmentWorkflow/index.html.md) -- [createServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createServiceZonesWorkflow/index.html.md) -- [createShippingProfilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShippingProfilesWorkflow/index.html.md) -- [deleteFulfillmentSetsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteFulfillmentSetsWorkflow/index.html.md) -- [deleteServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteServiceZonesWorkflow/index.html.md) -- [markFulfillmentAsDeliveredWorkflow](https://docs.medusajs.com/references/medusa-workflows/markFulfillmentAsDeliveredWorkflow/index.html.md) -- [updateServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateServiceZonesWorkflow/index.html.md) -- [updateFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateFulfillmentWorkflow/index.html.md) -- [updateShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateShippingOptionsWorkflow/index.html.md) -- [deleteShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteShippingOptionsWorkflow/index.html.md) -- [updateShippingProfilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateShippingProfilesWorkflow/index.html.md) -- [validateFulfillmentDeliverabilityStep](https://docs.medusajs.com/references/medusa-workflows/validateFulfillmentDeliverabilityStep/index.html.md) - [batchInventoryItemLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchInventoryItemLevelsWorkflow/index.html.md) - [createInventoryItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createInventoryItemsWorkflow/index.html.md) -- [bulkCreateDeleteLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/bulkCreateDeleteLevelsWorkflow/index.html.md) - [createInventoryLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createInventoryLevelsWorkflow/index.html.md) - [deleteInventoryItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteInventoryItemWorkflow/index.html.md) -- [updateInventoryItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateInventoryItemsWorkflow/index.html.md) -- [updateInventoryLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateInventoryLevelsWorkflow/index.html.md) - [deleteInventoryLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteInventoryLevelsWorkflow/index.html.md) +- [updateInventoryItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateInventoryItemsWorkflow/index.html.md) - [validateInventoryLevelsDelete](https://docs.medusajs.com/references/medusa-workflows/validateInventoryLevelsDelete/index.html.md) -- [deleteLineItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteLineItemsWorkflow/index.html.md) -- [createDefaultsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createDefaultsWorkflow/index.html.md) +- [updateInventoryLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateInventoryLevelsWorkflow/index.html.md) - [acceptInviteWorkflow](https://docs.medusajs.com/references/medusa-workflows/acceptInviteWorkflow/index.html.md) - [createInvitesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createInvitesWorkflow/index.html.md) - [deleteInvitesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteInvitesWorkflow/index.html.md) - [refreshInviteTokensWorkflow](https://docs.medusajs.com/references/medusa-workflows/refreshInviteTokensWorkflow/index.html.md) -- [capturePaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/capturePaymentWorkflow/index.html.md) +- [deleteLineItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteLineItemsWorkflow/index.html.md) - [processPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/processPaymentWorkflow/index.html.md) -- [validatePaymentsRefundStep](https://docs.medusajs.com/references/medusa-workflows/validatePaymentsRefundStep/index.html.md) +- [capturePaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/capturePaymentWorkflow/index.html.md) - [refundPaymentWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentWorkflow/index.html.md) - [refundPaymentsWorkflow](https://docs.medusajs.com/references/medusa-workflows/refundPaymentsWorkflow/index.html.md) - [validateRefundStep](https://docs.medusajs.com/references/medusa-workflows/validateRefundStep/index.html.md) -- [createLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/createLinksWorkflow/index.html.md) -- [dismissLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/dismissLinksWorkflow/index.html.md) -- [batchLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchLinksWorkflow/index.html.md) -- [updateLinksWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateLinksWorkflow/index.html.md) +- [validatePaymentsRefundStep](https://docs.medusajs.com/references/medusa-workflows/validatePaymentsRefundStep/index.html.md) +- [bulkCreateDeleteLevelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/bulkCreateDeleteLevelsWorkflow/index.html.md) +- [batchShippingOptionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchShippingOptionRulesWorkflow/index.html.md) +- [calculateShippingOptionsPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/calculateShippingOptionsPricesWorkflow/index.html.md) +- [createFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createFulfillmentWorkflow/index.html.md) +- [cancelFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelFulfillmentWorkflow/index.html.md) +- [createServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createServiceZonesWorkflow/index.html.md) +- [createShipmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShipmentWorkflow/index.html.md) +- [createShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShippingOptionsWorkflow/index.html.md) +- [createShippingProfilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createShippingProfilesWorkflow/index.html.md) +- [deleteFulfillmentSetsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteFulfillmentSetsWorkflow/index.html.md) +- [deleteServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteServiceZonesWorkflow/index.html.md) +- [deleteShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteShippingOptionsWorkflow/index.html.md) +- [markFulfillmentAsDeliveredWorkflow](https://docs.medusajs.com/references/medusa-workflows/markFulfillmentAsDeliveredWorkflow/index.html.md) +- [updateFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateFulfillmentWorkflow/index.html.md) +- [updateServiceZonesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateServiceZonesWorkflow/index.html.md) +- [updateShippingOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateShippingOptionsWorkflow/index.html.md) +- [updateShippingProfilesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateShippingProfilesWorkflow/index.html.md) +- [createReturnFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnFulfillmentWorkflow/index.html.md) +- [validateFulfillmentDeliverabilityStep](https://docs.medusajs.com/references/medusa-workflows/validateFulfillmentDeliverabilityStep/index.html.md) - [acceptOrderTransferValidationStep](https://docs.medusajs.com/references/medusa-workflows/acceptOrderTransferValidationStep/index.html.md) -- [acceptOrderTransferWorkflow](https://docs.medusajs.com/references/medusa-workflows/acceptOrderTransferWorkflow/index.html.md) -- [beginClaimOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginClaimOrderValidationStep/index.html.md) - [addOrderLineItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/addOrderLineItemsWorkflow/index.html.md) - [archiveOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/archiveOrderWorkflow/index.html.md) +- [acceptOrderTransferWorkflow](https://docs.medusajs.com/references/medusa-workflows/acceptOrderTransferWorkflow/index.html.md) +- [beginClaimOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginClaimOrderValidationStep/index.html.md) - [beginClaimOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginClaimOrderWorkflow/index.html.md) +- [beginOrderEditOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginOrderEditOrderWorkflow/index.html.md) +- [beginOrderEditValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginOrderEditValidationStep/index.html.md) - [beginExchangeOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginExchangeOrderWorkflow/index.html.md) - [beginOrderExchangeValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginOrderExchangeValidationStep/index.html.md) - [beginReceiveReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginReceiveReturnValidationStep/index.html.md) - [beginReceiveReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginReceiveReturnWorkflow/index.html.md) -- [beginReturnOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginReturnOrderValidationStep/index.html.md) -- [beginOrderEditValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginOrderEditValidationStep/index.html.md) - [beginReturnOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginReturnOrderWorkflow/index.html.md) +- [beginReturnOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/beginReturnOrderValidationStep/index.html.md) - [cancelBeginOrderClaimWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderClaimWorkflow/index.html.md) -- [cancelBeginOrderClaimValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderClaimValidationStep/index.html.md) -- [beginOrderEditOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/beginOrderEditOrderWorkflow/index.html.md) - [cancelBeginOrderEditValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderEditValidationStep/index.html.md) +- [cancelBeginOrderClaimValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderClaimValidationStep/index.html.md) - [cancelBeginOrderEditWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderEditWorkflow/index.html.md) -- [cancelBeginOrderExchangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderExchangeWorkflow/index.html.md) -- [cancelExchangeValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelExchangeValidateOrder/index.html.md) +- [cancelBeginOrderExchangeValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderExchangeValidationStep/index.html.md) - [cancelClaimValidateOrderStep](https://docs.medusajs.com/references/medusa-workflows/cancelClaimValidateOrderStep/index.html.md) -- [cancelOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderChangeWorkflow/index.html.md) +- [cancelExchangeValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelExchangeValidateOrder/index.html.md) +- [cancelBeginOrderExchangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderExchangeWorkflow/index.html.md) - [cancelOrderClaimWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderClaimWorkflow/index.html.md) - [cancelOrderFulfillmentValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelOrderFulfillmentValidateOrder/index.html.md) -- [cancelOrderExchangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderExchangeWorkflow/index.html.md) - [cancelOrderFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderFulfillmentWorkflow/index.html.md) -- [cancelBeginOrderExchangeValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelBeginOrderExchangeValidationStep/index.html.md) -- [cancelRequestReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelRequestReturnValidationStep/index.html.md) +- [cancelOrderExchangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderExchangeWorkflow/index.html.md) - [cancelOrderTransferRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderTransferRequestWorkflow/index.html.md) - [cancelOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderWorkflow/index.html.md) +- [cancelRequestReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelRequestReturnValidationStep/index.html.md) - [cancelReceiveReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelReceiveReturnValidationStep/index.html.md) - [cancelReturnReceiveWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelReturnReceiveWorkflow/index.html.md) - [cancelReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelReturnRequestWorkflow/index.html.md) - [cancelReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelReturnWorkflow/index.html.md) -- [cancelReturnValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelReturnValidateOrder/index.html.md) -- [cancelValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelValidateOrder/index.html.md) - [cancelTransferOrderRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/cancelTransferOrderRequestValidationStep/index.html.md) -- [confirmClaimRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmClaimRequestValidationStep/index.html.md) -- [confirmClaimRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmClaimRequestWorkflow/index.html.md) -- [confirmExchangeRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmExchangeRequestValidationStep/index.html.md) +- [cancelValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelValidateOrder/index.html.md) +- [cancelReturnValidateOrder](https://docs.medusajs.com/references/medusa-workflows/cancelReturnValidateOrder/index.html.md) - [completeOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/completeOrderWorkflow/index.html.md) +- [confirmClaimRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmClaimRequestValidationStep/index.html.md) +- [confirmExchangeRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmExchangeRequestValidationStep/index.html.md) - [confirmExchangeRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmExchangeRequestWorkflow/index.html.md) +- [confirmClaimRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmClaimRequestWorkflow/index.html.md) - [confirmOrderEditRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmOrderEditRequestValidationStep/index.html.md) - [confirmOrderEditRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmOrderEditRequestWorkflow/index.html.md) - [confirmReceiveReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmReceiveReturnValidationStep/index.html.md) - [confirmReturnReceiveWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmReturnReceiveWorkflow/index.html.md) - [confirmReturnRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/confirmReturnRequestValidationStep/index.html.md) - [createAndCompleteReturnOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/createAndCompleteReturnOrderWorkflow/index.html.md) -- [confirmReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmReturnRequestWorkflow/index.html.md) - [createClaimShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createClaimShippingMethodValidationStep/index.html.md) +- [confirmReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/confirmReturnRequestWorkflow/index.html.md) - [createClaimShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createClaimShippingMethodWorkflow/index.html.md) - [createCompleteReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/createCompleteReturnValidationStep/index.html.md) -- [createExchangeShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createExchangeShippingMethodValidationStep/index.html.md) -- [createFulfillmentValidateOrder](https://docs.medusajs.com/references/medusa-workflows/createFulfillmentValidateOrder/index.html.md) - [createExchangeShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createExchangeShippingMethodWorkflow/index.html.md) -- [createOrderChangeActionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderChangeActionsWorkflow/index.html.md) +- [createFulfillmentValidateOrder](https://docs.medusajs.com/references/medusa-workflows/createFulfillmentValidateOrder/index.html.md) +- [createExchangeShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createExchangeShippingMethodValidationStep/index.html.md) - [createOrUpdateOrderPaymentCollectionWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrUpdateOrderPaymentCollectionWorkflow/index.html.md) -- [createOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderChangeWorkflow/index.html.md) -- [createOrderEditShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderEditShippingMethodWorkflow/index.html.md) -- [createOrderFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderFulfillmentWorkflow/index.html.md) +- [createOrderChangeActionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderChangeActionsWorkflow/index.html.md) - [createOrderEditShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createOrderEditShippingMethodValidationStep/index.html.md) -- [createOrderPaymentCollectionWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderPaymentCollectionWorkflow/index.html.md) - [createOrderCreditLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderCreditLinesWorkflow/index.html.md) +- [createOrderEditShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderEditShippingMethodWorkflow/index.html.md) +- [createOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderChangeWorkflow/index.html.md) +- [createOrderFulfillmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderFulfillmentWorkflow/index.html.md) +- [createOrderPaymentCollectionWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderPaymentCollectionWorkflow/index.html.md) - [createOrderShipmentWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderShipmentWorkflow/index.html.md) - [createOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrderWorkflow/index.html.md) - [createOrdersWorkflow](https://docs.medusajs.com/references/medusa-workflows/createOrdersWorkflow/index.html.md) -- [createReturnShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnShippingMethodWorkflow/index.html.md) -- [createReturnShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createReturnShippingMethodValidationStep/index.html.md) - [createShipmentValidateOrder](https://docs.medusajs.com/references/medusa-workflows/createShipmentValidateOrder/index.html.md) +- [createReturnShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnShippingMethodWorkflow/index.html.md) - [declineOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/declineOrderChangeWorkflow/index.html.md) - [declineOrderTransferRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/declineOrderTransferRequestWorkflow/index.html.md) -- [deleteOrderChangeActionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteOrderChangeActionsWorkflow/index.html.md) +- [createReturnShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/createReturnShippingMethodValidationStep/index.html.md) - [declineTransferOrderRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/declineTransferOrderRequestValidationStep/index.html.md) -- [deleteOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteOrderChangeWorkflow/index.html.md) +- [deleteOrderChangeActionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteOrderChangeActionsWorkflow/index.html.md) - [deleteOrderPaymentCollections](https://docs.medusajs.com/references/medusa-workflows/deleteOrderPaymentCollections/index.html.md) - [dismissItemReturnRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/dismissItemReturnRequestValidationStep/index.html.md) -- [exchangeAddNewItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/exchangeAddNewItemValidationStep/index.html.md) +- [deleteOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteOrderChangeWorkflow/index.html.md) - [dismissItemReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/dismissItemReturnRequestWorkflow/index.html.md) +- [exchangeAddNewItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/exchangeAddNewItemValidationStep/index.html.md) - [exchangeRequestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/exchangeRequestItemReturnValidationStep/index.html.md) - [getOrderDetailWorkflow](https://docs.medusajs.com/references/medusa-workflows/getOrderDetailWorkflow/index.html.md) - [fetchShippingOptionForOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/fetchShippingOptionForOrderWorkflow/index.html.md) - [markOrderFulfillmentAsDeliveredWorkflow](https://docs.medusajs.com/references/medusa-workflows/markOrderFulfillmentAsDeliveredWorkflow/index.html.md) +- [markPaymentCollectionAsPaid](https://docs.medusajs.com/references/medusa-workflows/markPaymentCollectionAsPaid/index.html.md) - [getOrdersListWorkflow](https://docs.medusajs.com/references/medusa-workflows/getOrdersListWorkflow/index.html.md) - [maybeRefreshShippingMethodsWorkflow](https://docs.medusajs.com/references/medusa-workflows/maybeRefreshShippingMethodsWorkflow/index.html.md) -- [markPaymentCollectionAsPaid](https://docs.medusajs.com/references/medusa-workflows/markPaymentCollectionAsPaid/index.html.md) -- [orderClaimAddNewItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderClaimAddNewItemWorkflow/index.html.md) - [orderClaimAddNewItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderClaimAddNewItemValidationStep/index.html.md) -- [orderClaimRequestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderClaimRequestItemReturnValidationStep/index.html.md) - [orderClaimItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderClaimItemValidationStep/index.html.md) - [orderClaimItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderClaimItemWorkflow/index.html.md) +- [orderClaimAddNewItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderClaimAddNewItemWorkflow/index.html.md) +- [cancelOrderChangeWorkflow](https://docs.medusajs.com/references/medusa-workflows/cancelOrderChangeWorkflow/index.html.md) - [orderClaimRequestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderClaimRequestItemReturnWorkflow/index.html.md) -- [orderEditAddNewItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderEditAddNewItemValidationStep/index.html.md) -- [orderEditUpdateItemQuantityValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderEditUpdateItemQuantityValidationStep/index.html.md) -- [orderEditUpdateItemQuantityWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderEditUpdateItemQuantityWorkflow/index.html.md) - [orderEditAddNewItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderEditAddNewItemWorkflow/index.html.md) +- [orderEditUpdateItemQuantityValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderEditUpdateItemQuantityValidationStep/index.html.md) +- [orderEditAddNewItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderEditAddNewItemValidationStep/index.html.md) +- [orderEditUpdateItemQuantityWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderEditUpdateItemQuantityWorkflow/index.html.md) - [orderExchangeAddNewItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderExchangeAddNewItemWorkflow/index.html.md) -- [orderExchangeRequestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderExchangeRequestItemReturnWorkflow/index.html.md) -- [orderFulfillmentDeliverablilityValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderFulfillmentDeliverablilityValidationStep/index.html.md) - [receiveAndCompleteReturnOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/receiveAndCompleteReturnOrderWorkflow/index.html.md) - [receiveCompleteReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/receiveCompleteReturnValidationStep/index.html.md) +- [orderFulfillmentDeliverablilityValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderFulfillmentDeliverablilityValidationStep/index.html.md) - [receiveItemReturnRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/receiveItemReturnRequestValidationStep/index.html.md) -- [removeClaimAddItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimAddItemActionValidationStep/index.html.md) -- [removeClaimItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimItemActionValidationStep/index.html.md) -- [removeAddItemClaimActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeAddItemClaimActionWorkflow/index.html.md) -- [removeClaimShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimShippingMethodValidationStep/index.html.md) +- [orderExchangeRequestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/orderExchangeRequestItemReturnWorkflow/index.html.md) - [receiveItemReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/receiveItemReturnRequestWorkflow/index.html.md) +- [removeAddItemClaimActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeAddItemClaimActionWorkflow/index.html.md) +- [removeClaimItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimItemActionValidationStep/index.html.md) +- [removeClaimAddItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimAddItemActionValidationStep/index.html.md) - [removeClaimShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeClaimShippingMethodWorkflow/index.html.md) -- [removeItemClaimActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemClaimActionWorkflow/index.html.md) -- [removeExchangeItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeExchangeItemActionValidationStep/index.html.md) -- [removeExchangeShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeExchangeShippingMethodWorkflow/index.html.md) +- [removeClaimShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeClaimShippingMethodValidationStep/index.html.md) - [removeExchangeShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeExchangeShippingMethodValidationStep/index.html.md) +- [removeExchangeShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeExchangeShippingMethodWorkflow/index.html.md) +- [removeItemClaimActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemClaimActionWorkflow/index.html.md) - [removeItemExchangeActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemExchangeActionWorkflow/index.html.md) - [removeItemOrderEditActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemOrderEditActionWorkflow/index.html.md) -- [removeItemReturnActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemReturnActionWorkflow/index.html.md) - [removeItemReceiveReturnActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeItemReceiveReturnActionValidationStep/index.html.md) +- [removeExchangeItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeExchangeItemActionValidationStep/index.html.md) - [removeItemReceiveReturnActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemReceiveReturnActionWorkflow/index.html.md) -- [removeOrderEditItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeOrderEditItemActionValidationStep/index.html.md) +- [removeItemReturnActionWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeItemReturnActionWorkflow/index.html.md) +- [removeOrderEditShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeOrderEditShippingMethodWorkflow/index.html.md) - [removeOrderEditShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeOrderEditShippingMethodValidationStep/index.html.md) - [removeReturnItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeReturnItemActionValidationStep/index.html.md) +- [removeOrderEditItemActionValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeOrderEditItemActionValidationStep/index.html.md) - [removeReturnShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/removeReturnShippingMethodValidationStep/index.html.md) - [removeReturnShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeReturnShippingMethodWorkflow/index.html.md) -- [removeOrderEditShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeOrderEditShippingMethodWorkflow/index.html.md) -- [requestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestItemReturnValidationStep/index.html.md) - [requestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/requestItemReturnWorkflow/index.html.md) -- [requestOrderEditRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestOrderEditRequestValidationStep/index.html.md) -- [requestOrderTransferValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestOrderTransferValidationStep/index.html.md) -- [requestOrderTransferWorkflow](https://docs.medusajs.com/references/medusa-workflows/requestOrderTransferWorkflow/index.html.md) +- [requestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestItemReturnValidationStep/index.html.md) +- [orderClaimRequestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/orderClaimRequestItemReturnValidationStep/index.html.md) - [requestOrderEditRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/requestOrderEditRequestWorkflow/index.html.md) - [throwUnlessPaymentCollectionNotPaid](https://docs.medusajs.com/references/medusa-workflows/throwUnlessPaymentCollectionNotPaid/index.html.md) +- [requestOrderTransferValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestOrderTransferValidationStep/index.html.md) - [throwUnlessStatusIsNotPaid](https://docs.medusajs.com/references/medusa-workflows/throwUnlessStatusIsNotPaid/index.html.md) -- [updateClaimAddItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateClaimAddItemValidationStep/index.html.md) +- [requestOrderTransferWorkflow](https://docs.medusajs.com/references/medusa-workflows/requestOrderTransferWorkflow/index.html.md) - [updateClaimItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateClaimItemValidationStep/index.html.md) -- [updateClaimAddItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateClaimAddItemWorkflow/index.html.md) +- [requestOrderEditRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/requestOrderEditRequestValidationStep/index.html.md) - [updateClaimItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateClaimItemWorkflow/index.html.md) +- [updateClaimAddItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateClaimAddItemValidationStep/index.html.md) - [updateClaimShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateClaimShippingMethodValidationStep/index.html.md) -- [updateExchangeAddItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateExchangeAddItemValidationStep/index.html.md) - [updateClaimShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateClaimShippingMethodWorkflow/index.html.md) - [updateExchangeAddItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateExchangeAddItemWorkflow/index.html.md) -- [updateExchangeShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateExchangeShippingMethodValidationStep/index.html.md) +- [updateExchangeAddItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateExchangeAddItemValidationStep/index.html.md) +- [updateClaimAddItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateClaimAddItemWorkflow/index.html.md) - [updateExchangeShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateExchangeShippingMethodWorkflow/index.html.md) - [updateOrderChangeActionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderChangeActionsWorkflow/index.html.md) - [updateOrderChangesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderChangesWorkflow/index.html.md) - [updateOrderEditAddItemValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditAddItemValidationStep/index.html.md) -- [updateOrderEditItemQuantityWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditItemQuantityWorkflow/index.html.md) - [updateOrderEditItemQuantityValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditItemQuantityValidationStep/index.html.md) - [updateOrderEditAddItemWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditAddItemWorkflow/index.html.md) +- [updateOrderEditItemQuantityWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditItemQuantityWorkflow/index.html.md) - [updateOrderEditShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditShippingMethodValidationStep/index.html.md) -- [updateOrderTaxLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderTaxLinesWorkflow/index.html.md) -- [updateOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateOrderValidationStep/index.html.md) - [updateOrderEditShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderEditShippingMethodWorkflow/index.html.md) +- [updateOrderValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateOrderValidationStep/index.html.md) +- [updateOrderTaxLinesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderTaxLinesWorkflow/index.html.md) - [updateOrderWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateOrderWorkflow/index.html.md) -- [updateReceiveItemReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReceiveItemReturnRequestWorkflow/index.html.md) - [updateReceiveItemReturnRequestValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateReceiveItemReturnRequestValidationStep/index.html.md) -- [updateRequestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateRequestItemReturnWorkflow/index.html.md) +- [updateReceiveItemReturnRequestWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReceiveItemReturnRequestWorkflow/index.html.md) - [updateRequestItemReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateRequestItemReturnValidationStep/index.html.md) +- [updateRequestItemReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateRequestItemReturnWorkflow/index.html.md) - [updateReturnShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateReturnShippingMethodValidationStep/index.html.md) -- [updateReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateReturnValidationStep/index.html.md) - [updateReturnShippingMethodWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReturnShippingMethodWorkflow/index.html.md) -- [updateReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReturnWorkflow/index.html.md) +- [updateReturnValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateReturnValidationStep/index.html.md) - [validateOrderCreditLinesStep](https://docs.medusajs.com/references/medusa-workflows/validateOrderCreditLinesStep/index.html.md) +- [updateReturnWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReturnWorkflow/index.html.md) +- [createPaymentSessionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPaymentSessionsWorkflow/index.html.md) - [createRefundReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createRefundReasonsWorkflow/index.html.md) - [deletePaymentSessionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePaymentSessionsWorkflow/index.html.md) - [deleteRefundReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteRefundReasonsWorkflow/index.html.md) -- [createPaymentSessionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPaymentSessionsWorkflow/index.html.md) - [updateRefundReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateRefundReasonsWorkflow/index.html.md) +- [createPricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPricePreferencesWorkflow/index.html.md) +- [deletePricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePricePreferencesWorkflow/index.html.md) +- [updatePricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePricePreferencesWorkflow/index.html.md) +- [updateExchangeShippingMethodValidationStep](https://docs.medusajs.com/references/medusa-workflows/updateExchangeShippingMethodValidationStep/index.html.md) - [batchLinkProductsToCategoryWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchLinkProductsToCategoryWorkflow/index.html.md) -- [batchLinkProductsToCollectionWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchLinkProductsToCollectionWorkflow/index.html.md) -- [batchProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchProductVariantsWorkflow/index.html.md) - [batchProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchProductsWorkflow/index.html.md) +- [batchProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchProductVariantsWorkflow/index.html.md) - [createCollectionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCollectionsWorkflow/index.html.md) - [createProductOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductOptionsWorkflow/index.html.md) -- [createProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductTagsWorkflow/index.html.md) +- [batchLinkProductsToCollectionWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchLinkProductsToCollectionWorkflow/index.html.md) - [createProductTypesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductTypesWorkflow/index.html.md) -- [deleteCollectionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCollectionsWorkflow/index.html.md) -- [createProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductsWorkflow/index.html.md) - [createProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductVariantsWorkflow/index.html.md) +- [createProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductTagsWorkflow/index.html.md) - [deleteProductOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductOptionsWorkflow/index.html.md) +- [deleteCollectionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCollectionsWorkflow/index.html.md) - [deleteProductTypesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductTypesWorkflow/index.html.md) -- [deleteProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductTagsWorkflow/index.html.md) - [deleteProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductVariantsWorkflow/index.html.md) +- [createProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductsWorkflow/index.html.md) - [deleteProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductsWorkflow/index.html.md) - [exportProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/exportProductsWorkflow/index.html.md) -- [importProductsAsChunksWorkflow](https://docs.medusajs.com/references/medusa-workflows/importProductsAsChunksWorkflow/index.html.md) - [importProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/importProductsWorkflow/index.html.md) - [updateCollectionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCollectionsWorkflow/index.html.md) -- [updateProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductTagsWorkflow/index.html.md) -- [updateProductTypesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductTypesWorkflow/index.html.md) +- [deleteProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductTagsWorkflow/index.html.md) +- [importProductsAsChunksWorkflow](https://docs.medusajs.com/references/medusa-workflows/importProductsAsChunksWorkflow/index.html.md) - [updateProductOptionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductOptionsWorkflow/index.html.md) -- [updateProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductVariantsWorkflow/index.html.md) +- [updateProductTagsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductTagsWorkflow/index.html.md) - [updateProductsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductsWorkflow/index.html.md) -- [validateProductInputStep](https://docs.medusajs.com/references/medusa-workflows/validateProductInputStep/index.html.md) - [upsertVariantPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/upsertVariantPricesWorkflow/index.html.md) -- [createProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductCategoriesWorkflow/index.html.md) -- [deleteProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductCategoriesWorkflow/index.html.md) -- [createPriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPriceListPricesWorkflow/index.html.md) +- [validateProductInputStep](https://docs.medusajs.com/references/medusa-workflows/validateProductInputStep/index.html.md) +- [updateProductTypesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductTypesWorkflow/index.html.md) +- [updateProductVariantsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductVariantsWorkflow/index.html.md) - [batchPriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchPriceListPricesWorkflow/index.html.md) - [createPriceListsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPriceListsWorkflow/index.html.md) -- [updateProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductCategoriesWorkflow/index.html.md) +- [createPriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPriceListPricesWorkflow/index.html.md) - [deletePriceListsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePriceListsWorkflow/index.html.md) +- [removePriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/removePriceListPricesWorkflow/index.html.md) - [updatePriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePriceListPricesWorkflow/index.html.md) - [updatePriceListsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePriceListsWorkflow/index.html.md) -- [removePriceListPricesWorkflow](https://docs.medusajs.com/references/medusa-workflows/removePriceListPricesWorkflow/index.html.md) -- [createRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createRegionsWorkflow/index.html.md) -- [deleteRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteRegionsWorkflow/index.html.md) -- [updateRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateRegionsWorkflow/index.html.md) -- [batchPromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchPromotionRulesWorkflow/index.html.md) -- [createPromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPromotionRulesWorkflow/index.html.md) -- [createCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCampaignsWorkflow/index.html.md) -- [addOrRemoveCampaignPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/addOrRemoveCampaignPromotionsWorkflow/index.html.md) -- [createPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPromotionsWorkflow/index.html.md) -- [deletePromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePromotionRulesWorkflow/index.html.md) -- [deletePromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePromotionsWorkflow/index.html.md) -- [deleteCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCampaignsWorkflow/index.html.md) -- [updateCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCampaignsWorkflow/index.html.md) -- [updatePromotionsStatusWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsStatusWorkflow/index.html.md) -- [updatePromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsWorkflow/index.html.md) -- [updatePromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionRulesWorkflow/index.html.md) -- [updatePromotionsValidationStep](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsValidationStep/index.html.md) -- [createReservationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReservationsWorkflow/index.html.md) -- [deleteReservationsByLineItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteReservationsByLineItemsWorkflow/index.html.md) +- [createReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnReasonsWorkflow/index.html.md) +- [deleteReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteReturnReasonsWorkflow/index.html.md) +- [deleteProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteProductCategoriesWorkflow/index.html.md) +- [updateReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReturnReasonsWorkflow/index.html.md) +- [updateProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateProductCategoriesWorkflow/index.html.md) +- [createProductCategoriesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createProductCategoriesWorkflow/index.html.md) - [deleteReservationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteReservationsWorkflow/index.html.md) +- [deleteReservationsByLineItemsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteReservationsByLineItemsWorkflow/index.html.md) - [updateReservationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReservationsWorkflow/index.html.md) - [deleteSalesChannelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteSalesChannelsWorkflow/index.html.md) - [createSalesChannelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createSalesChannelsWorkflow/index.html.md) - [linkProductsToSalesChannelWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkProductsToSalesChannelWorkflow/index.html.md) +- [createReservationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReservationsWorkflow/index.html.md) - [updateSalesChannelsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateSalesChannelsWorkflow/index.html.md) -- [createReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createReturnReasonsWorkflow/index.html.md) -- [deleteReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteReturnReasonsWorkflow/index.html.md) -- [updateReturnReasonsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateReturnReasonsWorkflow/index.html.md) -- [deleteShippingProfileWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteShippingProfileWorkflow/index.html.md) -- [validateStepShippingProfileDelete](https://docs.medusajs.com/references/medusa-workflows/validateStepShippingProfileDelete/index.html.md) -- [updatePricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePricePreferencesWorkflow/index.html.md) -- [createPricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPricePreferencesWorkflow/index.html.md) -- [deletePricePreferencesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePricePreferencesWorkflow/index.html.md) -- [createStockLocationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createStockLocationsWorkflow/index.html.md) +- [createRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createRegionsWorkflow/index.html.md) +- [deleteRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteRegionsWorkflow/index.html.md) +- [updateRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateRegionsWorkflow/index.html.md) - [createLocationFulfillmentSetWorkflow](https://docs.medusajs.com/references/medusa-workflows/createLocationFulfillmentSetWorkflow/index.html.md) +- [createStockLocationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createStockLocationsWorkflow/index.html.md) - [deleteStockLocationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteStockLocationsWorkflow/index.html.md) - [linkSalesChannelsToStockLocationWorkflow](https://docs.medusajs.com/references/medusa-workflows/linkSalesChannelsToStockLocationWorkflow/index.html.md) - [updateStockLocationsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateStockLocationsWorkflow/index.html.md) -- [createStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/createStoresWorkflow/index.html.md) -- [updateStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateStoresWorkflow/index.html.md) -- [deleteStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteStoresWorkflow/index.html.md) - [createTaxRateRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createTaxRateRulesWorkflow/index.html.md) - [createTaxRatesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createTaxRatesWorkflow/index.html.md) -- [deleteTaxRateRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteTaxRateRulesWorkflow/index.html.md) -- [createTaxRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createTaxRegionsWorkflow/index.html.md) - [deleteTaxRatesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteTaxRatesWorkflow/index.html.md) -- [deleteTaxRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteTaxRegionsWorkflow/index.html.md) +- [deleteTaxRateRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteTaxRateRulesWorkflow/index.html.md) - [maybeListTaxRateRuleIdsStep](https://docs.medusajs.com/references/medusa-workflows/maybeListTaxRateRuleIdsStep/index.html.md) -- [updateTaxRatesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateTaxRatesWorkflow/index.html.md) +- [deleteTaxRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteTaxRegionsWorkflow/index.html.md) +- [createTaxRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createTaxRegionsWorkflow/index.html.md) - [setTaxRateRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/setTaxRateRulesWorkflow/index.html.md) +- [updateTaxRatesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateTaxRatesWorkflow/index.html.md) - [updateTaxRegionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateTaxRegionsWorkflow/index.html.md) -- [createUserAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/createUserAccountWorkflow/index.html.md) +- [deleteShippingProfileWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteShippingProfileWorkflow/index.html.md) +- [validateStepShippingProfileDelete](https://docs.medusajs.com/references/medusa-workflows/validateStepShippingProfileDelete/index.html.md) - [deleteUsersWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteUsersWorkflow/index.html.md) - [createUsersWorkflow](https://docs.medusajs.com/references/medusa-workflows/createUsersWorkflow/index.html.md) +- [createUserAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/createUserAccountWorkflow/index.html.md) - [removeUserAccountWorkflow](https://docs.medusajs.com/references/medusa-workflows/removeUserAccountWorkflow/index.html.md) - [updateUsersWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateUsersWorkflow/index.html.md) +- [addOrRemoveCampaignPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/addOrRemoveCampaignPromotionsWorkflow/index.html.md) +- [batchPromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/batchPromotionRulesWorkflow/index.html.md) +- [createCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCampaignsWorkflow/index.html.md) +- [createPromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPromotionRulesWorkflow/index.html.md) +- [deletePromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePromotionRulesWorkflow/index.html.md) +- [deletePromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deletePromotionsWorkflow/index.html.md) +- [createPromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/createPromotionsWorkflow/index.html.md) +- [deleteCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteCampaignsWorkflow/index.html.md) +- [updateCampaignsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateCampaignsWorkflow/index.html.md) +- [updatePromotionsValidationStep](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsValidationStep/index.html.md) +- [updatePromotionRulesWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionRulesWorkflow/index.html.md) +- [updatePromotionsStatusWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsStatusWorkflow/index.html.md) +- [updatePromotionsWorkflow](https://docs.medusajs.com/references/medusa-workflows/updatePromotionsWorkflow/index.html.md) +- [createStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/createStoresWorkflow/index.html.md) +- [deleteStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/deleteStoresWorkflow/index.html.md) +- [updateStoresWorkflow](https://docs.medusajs.com/references/medusa-workflows/updateStoresWorkflow/index.html.md) ## Steps - [createApiKeysStep](https://docs.medusajs.com/references/medusa-workflows/steps/createApiKeysStep/index.html.md) -- [deleteApiKeysStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteApiKeysStep/index.html.md) - [linkSalesChannelsToApiKeyStep](https://docs.medusajs.com/references/medusa-workflows/steps/linkSalesChannelsToApiKeyStep/index.html.md) - [updateApiKeysStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateApiKeysStep/index.html.md) -- [validateSalesChannelsExistStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateSalesChannelsExistStep/index.html.md) - [revokeApiKeysStep](https://docs.medusajs.com/references/medusa-workflows/steps/revokeApiKeysStep/index.html.md) -- [createRemoteLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRemoteLinkStep/index.html.md) +- [deleteApiKeysStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteApiKeysStep/index.html.md) +- [validateSalesChannelsExistStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateSalesChannelsExistStep/index.html.md) - [createEntitiesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createEntitiesStep/index.html.md) -- [dismissRemoteLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/dismissRemoteLinkStep/index.html.md) -- [emitEventStep](https://docs.medusajs.com/references/medusa-workflows/steps/emitEventStep/index.html.md) - [deleteEntitiesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteEntitiesStep/index.html.md) +- [createRemoteLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRemoteLinkStep/index.html.md) +- [dismissRemoteLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/dismissRemoteLinkStep/index.html.md) - [removeRemoteLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeRemoteLinkStep/index.html.md) +- [emitEventStep](https://docs.medusajs.com/references/medusa-workflows/steps/emitEventStep/index.html.md) +- [useQueryGraphStep](https://docs.medusajs.com/references/medusa-workflows/steps/useQueryGraphStep/index.html.md) +- [validatePresenceOfStep](https://docs.medusajs.com/references/medusa-workflows/steps/validatePresenceOfStep/index.html.md) - [updateRemoteLinksStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateRemoteLinksStep/index.html.md) - [useRemoteQueryStep](https://docs.medusajs.com/references/medusa-workflows/steps/useRemoteQueryStep/index.html.md) -- [validatePresenceOfStep](https://docs.medusajs.com/references/medusa-workflows/steps/validatePresenceOfStep/index.html.md) -- [useQueryGraphStep](https://docs.medusajs.com/references/medusa-workflows/steps/useQueryGraphStep/index.html.md) +- [deleteCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCustomerAddressesStep/index.html.md) +- [createCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCustomersStep/index.html.md) +- [createCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCustomerAddressesStep/index.html.md) +- [deleteCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCustomersStep/index.html.md) +- [maybeUnsetDefaultShippingAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/maybeUnsetDefaultShippingAddressesStep/index.html.md) +- [maybeUnsetDefaultBillingAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/maybeUnsetDefaultBillingAddressesStep/index.html.md) +- [updateCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCustomersStep/index.html.md) +- [validateCustomerAccountCreation](https://docs.medusajs.com/references/medusa-workflows/steps/validateCustomerAccountCreation/index.html.md) +- [updateCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCustomerAddressesStep/index.html.md) - [createCustomerGroupsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCustomerGroupsStep/index.html.md) -- [linkCustomerGroupsToCustomerStep](https://docs.medusajs.com/references/medusa-workflows/steps/linkCustomerGroupsToCustomerStep/index.html.md) -- [linkCustomersToCustomerGroupStep](https://docs.medusajs.com/references/medusa-workflows/steps/linkCustomersToCustomerGroupStep/index.html.md) - [deleteCustomerGroupStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCustomerGroupStep/index.html.md) +- [linkCustomerGroupsToCustomerStep](https://docs.medusajs.com/references/medusa-workflows/steps/linkCustomerGroupsToCustomerStep/index.html.md) - [updateCustomerGroupsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCustomerGroupsStep/index.html.md) -- [validateDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateDraftOrderStep/index.html.md) +- [linkCustomersToCustomerGroupStep](https://docs.medusajs.com/references/medusa-workflows/steps/linkCustomersToCustomerGroupStep/index.html.md) +- [addShippingMethodToCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/addShippingMethodToCartStep/index.html.md) +- [createLineItemAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createLineItemAdjustmentsStep/index.html.md) +- [createCartsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCartsStep/index.html.md) +- [createLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createLineItemsStep/index.html.md) +- [confirmInventoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/confirmInventoryStep/index.html.md) +- [createPaymentCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentCollectionsStep/index.html.md) +- [createShippingMethodAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingMethodAdjustmentsStep/index.html.md) +- [getActionsToComputeFromPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getActionsToComputeFromPromotionsStep/index.html.md) +- [findSalesChannelStep](https://docs.medusajs.com/references/medusa-workflows/steps/findSalesChannelStep/index.html.md) +- [getLineItemActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getLineItemActionsStep/index.html.md) +- [findOrCreateCustomerStep](https://docs.medusajs.com/references/medusa-workflows/steps/findOrCreateCustomerStep/index.html.md) +- [getVariantPriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantPriceSetsStep/index.html.md) +- [getPromotionCodesToApply](https://docs.medusajs.com/references/medusa-workflows/steps/getPromotionCodesToApply/index.html.md) +- [prepareAdjustmentsFromPromotionActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/prepareAdjustmentsFromPromotionActionsStep/index.html.md) +- [findOneOrAnyRegionStep](https://docs.medusajs.com/references/medusa-workflows/steps/findOneOrAnyRegionStep/index.html.md) +- [removeShippingMethodAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeShippingMethodAdjustmentsStep/index.html.md) +- [removeShippingMethodFromCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeShippingMethodFromCartStep/index.html.md) +- [removeLineItemAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeLineItemAdjustmentsStep/index.html.md) +- [getVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantsStep/index.html.md) +- [reserveInventoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/reserveInventoryStep/index.html.md) +- [updateCartsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCartsStep/index.html.md) +- [retrieveCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/retrieveCartStep/index.html.md) +- [setTaxLinesForItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/setTaxLinesForItemsStep/index.html.md) +- [updateLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateLineItemsStep/index.html.md) +- [updateShippingMethodsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingMethodsStep/index.html.md) +- [updateCartPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCartPromotionsStep/index.html.md) +- [validateCartPaymentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartPaymentsStep/index.html.md) +- [validateCartShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartShippingOptionsStep/index.html.md) +- [validateCartShippingOptionsPriceStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartShippingOptionsPriceStep/index.html.md) +- [validateCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartStep/index.html.md) +- [validateLineItemPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateLineItemPricesStep/index.html.md) +- [validateAndReturnShippingMethodsDataStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateAndReturnShippingMethodsDataStep/index.html.md) +- [validateShippingStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShippingStep/index.html.md) +- [validateVariantPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateVariantPricesStep/index.html.md) +- [setAuthAppMetadataStep](https://docs.medusajs.com/references/medusa-workflows/steps/setAuthAppMetadataStep/index.html.md) +- [createDefaultStoreStep](https://docs.medusajs.com/references/medusa-workflows/steps/createDefaultStoreStep/index.html.md) - [uploadFilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/uploadFilesStep/index.html.md) - [deleteFilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteFilesStep/index.html.md) -- [setAuthAppMetadataStep](https://docs.medusajs.com/references/medusa-workflows/steps/setAuthAppMetadataStep/index.html.md) -- [buildPriceSet](https://docs.medusajs.com/references/medusa-workflows/steps/buildPriceSet/index.html.md) -- [calculateShippingOptionsPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/calculateShippingOptionsPricesStep/index.html.md) -- [createFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/createFulfillmentStep/index.html.md) -- [createFulfillmentSets](https://docs.medusajs.com/references/medusa-workflows/steps/createFulfillmentSets/index.html.md) -- [createReturnFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnFulfillmentStep/index.html.md) -- [cancelFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelFulfillmentStep/index.html.md) -- [createShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingOptionRulesStep/index.html.md) -- [createShippingOptionsPriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingOptionsPriceSetsStep/index.html.md) -- [createServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createServiceZonesStep/index.html.md) -- [deleteFulfillmentSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteFulfillmentSetsStep/index.html.md) -- [createShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingProfilesStep/index.html.md) -- [deleteServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteServiceZonesStep/index.html.md) -- [deleteShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingOptionsStep/index.html.md) -- [setShippingOptionsPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/setShippingOptionsPricesStep/index.html.md) -- [updateServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateServiceZonesStep/index.html.md) -- [deleteShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingOptionRulesStep/index.html.md) -- [updateShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingOptionRulesStep/index.html.md) -- [updateFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateFulfillmentStep/index.html.md) -- [updateShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingProfilesStep/index.html.md) -- [upsertShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/upsertShippingOptionsStep/index.html.md) -- [validateShipmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShipmentStep/index.html.md) -- [validateShippingOptionPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShippingOptionPricesStep/index.html.md) -- [createDefaultStoreStep](https://docs.medusajs.com/references/medusa-workflows/steps/createDefaultStoreStep/index.html.md) - [adjustInventoryLevelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/adjustInventoryLevelsStep/index.html.md) -- [createInventoryItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInventoryItemsStep/index.html.md) - [attachInventoryItemToVariants](https://docs.medusajs.com/references/medusa-workflows/steps/attachInventoryItemToVariants/index.html.md) +- [createInventoryItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInventoryItemsStep/index.html.md) +- [createInventoryLevelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInventoryLevelsStep/index.html.md) +- [deleteInventoryItemStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteInventoryItemStep/index.html.md) - [updateInventoryItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateInventoryItemsStep/index.html.md) - [deleteInventoryLevelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteInventoryLevelsStep/index.html.md) -- [deleteInventoryItemStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteInventoryItemStep/index.html.md) -- [createInventoryLevelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInventoryLevelsStep/index.html.md) - [updateInventoryLevelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateInventoryLevelsStep/index.html.md) -- [validateInventoryItemsForCreate](https://docs.medusajs.com/references/medusa-workflows/steps/validateInventoryItemsForCreate/index.html.md) - [validateInventoryDeleteStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateInventoryDeleteStep/index.html.md) - [validateInventoryLocationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateInventoryLocationsStep/index.html.md) +- [validateInventoryItemsForCreate](https://docs.medusajs.com/references/medusa-workflows/steps/validateInventoryItemsForCreate/index.html.md) +- [validateDraftOrderStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateDraftOrderStep/index.html.md) +- [createInviteStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInviteStep/index.html.md) - [deleteInvitesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteInvitesStep/index.html.md) - [refreshInviteTokensStep](https://docs.medusajs.com/references/medusa-workflows/steps/refreshInviteTokensStep/index.html.md) -- [createInviteStep](https://docs.medusajs.com/references/medusa-workflows/steps/createInviteStep/index.html.md) - [validateTokenStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateTokenStep/index.html.md) -- [notifyOnFailureStep](https://docs.medusajs.com/references/medusa-workflows/steps/notifyOnFailureStep/index.html.md) -- [sendNotificationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/sendNotificationsStep/index.html.md) - [deleteLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteLineItemsStep/index.html.md) -- [listLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/listLineItemsStep/index.html.md) - [updateLineItemsStepWithSelector](https://docs.medusajs.com/references/medusa-workflows/steps/updateLineItemsStepWithSelector/index.html.md) -- [cancelPaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelPaymentStep/index.html.md) -- [capturePaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/capturePaymentStep/index.html.md) -- [authorizePaymentSessionStep](https://docs.medusajs.com/references/medusa-workflows/steps/authorizePaymentSessionStep/index.html.md) -- [refundPaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/refundPaymentStep/index.html.md) -- [refundPaymentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/refundPaymentsStep/index.html.md) +- [listLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/listLineItemsStep/index.html.md) - [addOrderTransactionStep](https://docs.medusajs.com/references/medusa-workflows/steps/addOrderTransactionStep/index.html.md) -- [cancelOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderChangeStep/index.html.md) -- [cancelOrderExchangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderExchangeStep/index.html.md) -- [cancelOrderClaimStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderClaimStep/index.html.md) - [archiveOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/archiveOrdersStep/index.html.md) +- [cancelOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderChangeStep/index.html.md) +- [cancelOrderClaimStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderClaimStep/index.html.md) - [cancelOrderFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderFulfillmentStep/index.html.md) -- [cancelOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrdersStep/index.html.md) - [cancelOrderReturnStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderReturnStep/index.html.md) -- [completeOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/completeOrdersStep/index.html.md) -- [createOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderChangeStep/index.html.md) +- [cancelOrderExchangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrderExchangeStep/index.html.md) +- [cancelOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelOrdersStep/index.html.md) - [createCompleteReturnStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCompleteReturnStep/index.html.md) +- [createOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderChangeStep/index.html.md) +- [completeOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/completeOrdersStep/index.html.md) - [createOrderClaimsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderClaimsStep/index.html.md) -- [createOrderExchangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderExchangesStep/index.html.md) - [createOrderExchangeItemsFromActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderExchangeItemsFromActionsStep/index.html.md) - [createOrderLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderLineItemsStep/index.html.md) -- [createOrderClaimItemsFromActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderClaimItemsFromActionsStep/index.html.md) -- [createReturnsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnsStep/index.html.md) +- [createOrderExchangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderExchangesStep/index.html.md) - [createOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrdersStep/index.html.md) +- [createReturnsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnsStep/index.html.md) - [declineOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/declineOrderChangeStep/index.html.md) -- [deleteExchangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteExchangesStep/index.html.md) -- [deleteOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderChangesStep/index.html.md) -- [deleteOrderChangeActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderChangeActionsStep/index.html.md) -- [deleteOrderLineItems](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderLineItems/index.html.md) -- [deleteOrderShippingMethods](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderShippingMethods/index.html.md) -- [deleteReturnsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReturnsStep/index.html.md) -- [previewOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/previewOrderChangeStep/index.html.md) +- [createOrderClaimItemsFromActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createOrderClaimItemsFromActionsStep/index.html.md) - [deleteClaimsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteClaimsStep/index.html.md) -- [registerOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/registerOrderChangesStep/index.html.md) +- [deleteExchangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteExchangesStep/index.html.md) +- [deleteOrderChangeActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderChangeActionsStep/index.html.md) +- [deleteOrderShippingMethods](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderShippingMethods/index.html.md) +- [deleteOrderLineItems](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderLineItems/index.html.md) +- [deleteOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteOrderChangesStep/index.html.md) +- [previewOrderChangeStep](https://docs.medusajs.com/references/medusa-workflows/steps/previewOrderChangeStep/index.html.md) - [registerOrderDeliveryStep](https://docs.medusajs.com/references/medusa-workflows/steps/registerOrderDeliveryStep/index.html.md) +- [registerOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/registerOrderChangesStep/index.html.md) - [registerOrderFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/registerOrderFulfillmentStep/index.html.md) +- [deleteReturnsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReturnsStep/index.html.md) - [setOrderTaxLinesForItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/setOrderTaxLinesForItemsStep/index.html.md) - [updateOrderChangeActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateOrderChangeActionsStep/index.html.md) - [registerOrderShipmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/registerOrderShipmentStep/index.html.md) -- [updateOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateOrderChangesStep/index.html.md) - [updateOrderShippingMethodsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateOrderShippingMethodsStep/index.html.md) - [updateOrdersStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateOrdersStep/index.html.md) +- [updateOrderChangesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateOrderChangesStep/index.html.md) - [updateReturnsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateReturnsStep/index.html.md) - [updateReturnItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateReturnItemsStep/index.html.md) +- [authorizePaymentSessionStep](https://docs.medusajs.com/references/medusa-workflows/steps/authorizePaymentSessionStep/index.html.md) +- [cancelPaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelPaymentStep/index.html.md) +- [capturePaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/capturePaymentStep/index.html.md) +- [refundPaymentStep](https://docs.medusajs.com/references/medusa-workflows/steps/refundPaymentStep/index.html.md) +- [refundPaymentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/refundPaymentsStep/index.html.md) +- [createPaymentAccountHolderStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentAccountHolderStep/index.html.md) +- [createPaymentSessionStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentSessionStep/index.html.md) +- [createRefundReasonStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRefundReasonStep/index.html.md) +- [deleteRefundReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteRefundReasonsStep/index.html.md) +- [deletePaymentSessionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePaymentSessionsStep/index.html.md) +- [updateRefundReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateRefundReasonsStep/index.html.md) +- [updatePaymentCollectionStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePaymentCollectionStep/index.html.md) +- [validateDeletedPaymentSessionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateDeletedPaymentSessionsStep/index.html.md) +- [notifyOnFailureStep](https://docs.medusajs.com/references/medusa-workflows/steps/notifyOnFailureStep/index.html.md) +- [sendNotificationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/sendNotificationsStep/index.html.md) - [createPriceListPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPriceListPricesStep/index.html.md) - [createPriceListsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPriceListsStep/index.html.md) - [deletePriceListsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePriceListsStep/index.html.md) - [getExistingPriceListsPriceIdsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getExistingPriceListsPriceIdsStep/index.html.md) -- [updatePriceListPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceListPricesStep/index.html.md) - [removePriceListPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/removePriceListPricesStep/index.html.md) -- [updatePriceListsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceListsStep/index.html.md) +- [updatePriceListPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceListPricesStep/index.html.md) - [validatePriceListsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validatePriceListsStep/index.html.md) -- [validateVariantPriceLinksStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateVariantPriceLinksStep/index.html.md) -- [createPaymentSessionStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentSessionStep/index.html.md) -- [createPaymentAccountHolderStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentAccountHolderStep/index.html.md) -- [createRefundReasonStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRefundReasonStep/index.html.md) -- [deletePaymentSessionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePaymentSessionsStep/index.html.md) -- [deleteRefundReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteRefundReasonsStep/index.html.md) -- [updateRefundReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateRefundReasonsStep/index.html.md) -- [validateDeletedPaymentSessionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateDeletedPaymentSessionsStep/index.html.md) -- [updatePaymentCollectionStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePaymentCollectionStep/index.html.md) - [createPricePreferencesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPricePreferencesStep/index.html.md) +- [updatePriceListsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceListsStep/index.html.md) - [createPriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPriceSetsStep/index.html.md) -- [deletePricePreferencesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePricePreferencesStep/index.html.md) - [updatePricePreferencesAsArrayStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePricePreferencesAsArrayStep/index.html.md) -- [updatePriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceSetsStep/index.html.md) +- [validateVariantPriceLinksStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateVariantPriceLinksStep/index.html.md) +- [deletePricePreferencesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePricePreferencesStep/index.html.md) - [updatePricePreferencesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePricePreferencesStep/index.html.md) +- [updatePriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePriceSetsStep/index.html.md) - [createProductCategoriesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductCategoriesStep/index.html.md) - [deleteProductCategoriesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductCategoriesStep/index.html.md) - [updateProductCategoriesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductCategoriesStep/index.html.md) -- [batchLinkProductsToCategoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/batchLinkProductsToCategoryStep/index.html.md) -- [batchLinkProductsToCollectionStep](https://docs.medusajs.com/references/medusa-workflows/steps/batchLinkProductsToCollectionStep/index.html.md) -- [createCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCollectionsStep/index.html.md) -- [createProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductOptionsStep/index.html.md) -- [createProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductTagsStep/index.html.md) -- [createProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductTypesStep/index.html.md) -- [createProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductVariantsStep/index.html.md) -- [createProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductsStep/index.html.md) -- [createVariantPricingLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/createVariantPricingLinkStep/index.html.md) -- [deleteCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCollectionsStep/index.html.md) -- [deleteProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductOptionsStep/index.html.md) -- [deleteProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductTagsStep/index.html.md) -- [deleteProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductTypesStep/index.html.md) -- [deleteProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductVariantsStep/index.html.md) -- [deleteProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductsStep/index.html.md) -- [generateProductCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/generateProductCsvStep/index.html.md) -- [getProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getProductsStep/index.html.md) -- [getAllProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getAllProductsStep/index.html.md) -- [getVariantAvailabilityStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantAvailabilityStep/index.html.md) -- [normalizeCsvToChunksStep](https://docs.medusajs.com/references/medusa-workflows/steps/normalizeCsvToChunksStep/index.html.md) -- [normalizeCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/normalizeCsvStep/index.html.md) -- [processImportChunksStep](https://docs.medusajs.com/references/medusa-workflows/steps/processImportChunksStep/index.html.md) -- [updateCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCollectionsStep/index.html.md) -- [updateProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductOptionsStep/index.html.md) -- [updateProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductTagsStep/index.html.md) -- [updateProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductTypesStep/index.html.md) -- [updateProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductVariantsStep/index.html.md) -- [updateProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductsStep/index.html.md) -- [waitConfirmationProductImportStep](https://docs.medusajs.com/references/medusa-workflows/steps/waitConfirmationProductImportStep/index.html.md) -- [createRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRegionsStep/index.html.md) -- [deleteRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteRegionsStep/index.html.md) -- [setRegionsPaymentProvidersStep](https://docs.medusajs.com/references/medusa-workflows/steps/setRegionsPaymentProvidersStep/index.html.md) -- [updateRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateRegionsStep/index.html.md) +- [addCampaignPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/addCampaignPromotionsStep/index.html.md) +- [createPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPromotionsStep/index.html.md) +- [createCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCampaignsStep/index.html.md) +- [deleteCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCampaignsStep/index.html.md) +- [addRulesToPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/addRulesToPromotionsStep/index.html.md) +- [removeRulesFromPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeRulesFromPromotionsStep/index.html.md) +- [removeCampaignPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeCampaignPromotionsStep/index.html.md) +- [deletePromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePromotionsStep/index.html.md) +- [updatePromotionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePromotionRulesStep/index.html.md) +- [updateCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCampaignsStep/index.html.md) +- [updatePromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePromotionsStep/index.html.md) - [createReservationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReservationsStep/index.html.md) - [deleteReservationsByLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReservationsByLineItemsStep/index.html.md) - [deleteReservationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReservationsStep/index.html.md) - [updateReservationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateReservationsStep/index.html.md) -- [createReturnReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnReasonsStep/index.html.md) -- [deleteReturnReasonStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReturnReasonStep/index.html.md) -- [updateReturnReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateReturnReasonsStep/index.html.md) -- [addCampaignPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/addCampaignPromotionsStep/index.html.md) -- [addRulesToPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/addRulesToPromotionsStep/index.html.md) -- [createCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCampaignsStep/index.html.md) -- [createPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPromotionsStep/index.html.md) -- [deleteCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCampaignsStep/index.html.md) -- [deletePromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deletePromotionsStep/index.html.md) -- [removeCampaignPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeCampaignPromotionsStep/index.html.md) -- [removeRulesFromPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeRulesFromPromotionsStep/index.html.md) -- [updateCampaignsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCampaignsStep/index.html.md) -- [updatePromotionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePromotionRulesStep/index.html.md) -- [updatePromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updatePromotionsStep/index.html.md) -- [associateProductsWithSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/associateProductsWithSalesChannelsStep/index.html.md) +- [createRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createRegionsStep/index.html.md) +- [setRegionsPaymentProvidersStep](https://docs.medusajs.com/references/medusa-workflows/steps/setRegionsPaymentProvidersStep/index.html.md) +- [updateRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateRegionsStep/index.html.md) +- [deleteRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteRegionsStep/index.html.md) +- [batchLinkProductsToCategoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/batchLinkProductsToCategoryStep/index.html.md) +- [createCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCollectionsStep/index.html.md) +- [createProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductTagsStep/index.html.md) +- [batchLinkProductsToCollectionStep](https://docs.medusajs.com/references/medusa-workflows/steps/batchLinkProductsToCollectionStep/index.html.md) +- [createProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductVariantsStep/index.html.md) +- [createProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductOptionsStep/index.html.md) +- [createVariantPricingLinkStep](https://docs.medusajs.com/references/medusa-workflows/steps/createVariantPricingLinkStep/index.html.md) +- [deleteCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCollectionsStep/index.html.md) +- [createProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductsStep/index.html.md) +- [deleteProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductOptionsStep/index.html.md) +- [deleteProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductTagsStep/index.html.md) +- [deleteProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductVariantsStep/index.html.md) +- [createProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createProductTypesStep/index.html.md) +- [deleteProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductsStep/index.html.md) +- [generateProductCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/generateProductCsvStep/index.html.md) +- [deleteProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteProductTypesStep/index.html.md) +- [getAllProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getAllProductsStep/index.html.md) +- [getProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getProductsStep/index.html.md) +- [parseProductCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/parseProductCsvStep/index.html.md) +- [normalizeCsvToChunksStep](https://docs.medusajs.com/references/medusa-workflows/steps/normalizeCsvToChunksStep/index.html.md) +- [getVariantAvailabilityStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantAvailabilityStep/index.html.md) +- [normalizeCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/normalizeCsvStep/index.html.md) +- [updateProductOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductOptionsStep/index.html.md) +- [processImportChunksStep](https://docs.medusajs.com/references/medusa-workflows/steps/processImportChunksStep/index.html.md) +- [updateProductTypesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductTypesStep/index.html.md) +- [updateCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCollectionsStep/index.html.md) +- [updateProductTagsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductTagsStep/index.html.md) +- [updateProductsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductsStep/index.html.md) +- [updateProductVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateProductVariantsStep/index.html.md) +- [waitConfirmationProductImportStep](https://docs.medusajs.com/references/medusa-workflows/steps/waitConfirmationProductImportStep/index.html.md) - [canDeleteSalesChannelsOrThrowStep](https://docs.medusajs.com/references/medusa-workflows/steps/canDeleteSalesChannelsOrThrowStep/index.html.md) - [createDefaultSalesChannelStep](https://docs.medusajs.com/references/medusa-workflows/steps/createDefaultSalesChannelStep/index.html.md) +- [associateProductsWithSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/associateProductsWithSalesChannelsStep/index.html.md) - [createSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createSalesChannelsStep/index.html.md) -- [deleteSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteSalesChannelsStep/index.html.md) +- [associateLocationsWithSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/associateLocationsWithSalesChannelsStep/index.html.md) - [detachLocationsFromSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/detachLocationsFromSalesChannelsStep/index.html.md) +- [deleteSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteSalesChannelsStep/index.html.md) - [detachProductsFromSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/detachProductsFromSalesChannelsStep/index.html.md) - [updateSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateSalesChannelsStep/index.html.md) -- [deleteShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingProfilesStep/index.html.md) +- [buildPriceSet](https://docs.medusajs.com/references/medusa-workflows/steps/buildPriceSet/index.html.md) +- [calculateShippingOptionsPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/calculateShippingOptionsPricesStep/index.html.md) +- [createFulfillmentSets](https://docs.medusajs.com/references/medusa-workflows/steps/createFulfillmentSets/index.html.md) +- [createReturnFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnFulfillmentStep/index.html.md) +- [cancelFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/cancelFulfillmentStep/index.html.md) +- [createFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/createFulfillmentStep/index.html.md) +- [createShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingOptionRulesStep/index.html.md) +- [createShippingOptionsPriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingOptionsPriceSetsStep/index.html.md) +- [createShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingProfilesStep/index.html.md) +- [deleteServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteServiceZonesStep/index.html.md) +- [deleteFulfillmentSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteFulfillmentSetsStep/index.html.md) +- [deleteShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingOptionRulesStep/index.html.md) +- [deleteShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingOptionsStep/index.html.md) +- [updateFulfillmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateFulfillmentStep/index.html.md) +- [setShippingOptionsPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/setShippingOptionsPricesStep/index.html.md) +- [updateServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateServiceZonesStep/index.html.md) +- [updateShippingOptionRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingOptionRulesStep/index.html.md) +- [updateShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingProfilesStep/index.html.md) +- [createServiceZonesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createServiceZonesStep/index.html.md) +- [validateShippingOptionPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShippingOptionPricesStep/index.html.md) +- [upsertShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/upsertShippingOptionsStep/index.html.md) +- [validateShipmentStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShipmentStep/index.html.md) +- [deleteReturnReasonStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteReturnReasonStep/index.html.md) +- [createReturnReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createReturnReasonsStep/index.html.md) - [listShippingOptionsForContextStep](https://docs.medusajs.com/references/medusa-workflows/steps/listShippingOptionsForContextStep/index.html.md) -- [parseProductCsvStep](https://docs.medusajs.com/references/medusa-workflows/steps/parseProductCsvStep/index.html.md) +- [updateReturnReasonsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateReturnReasonsStep/index.html.md) - [createStoresStep](https://docs.medusajs.com/references/medusa-workflows/steps/createStoresStep/index.html.md) - [deleteStoresStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteStoresStep/index.html.md) +- [deleteShippingProfilesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteShippingProfilesStep/index.html.md) - [updateStoresStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateStoresStep/index.html.md) +- [deleteUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteUsersStep/index.html.md) +- [createUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/createUsersStep/index.html.md) +- [updateUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateUsersStep/index.html.md) - [createTaxRateRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createTaxRateRulesStep/index.html.md) -- [createTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createTaxRatesStep/index.html.md) - [createTaxRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createTaxRegionsStep/index.html.md) -- [deleteTaxRateRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteTaxRateRulesStep/index.html.md) -- [deleteTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteTaxRatesStep/index.html.md) +- [createTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createTaxRatesStep/index.html.md) - [deleteTaxRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteTaxRegionsStep/index.html.md) +- [deleteTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteTaxRatesStep/index.html.md) - [getItemTaxLinesStep](https://docs.medusajs.com/references/medusa-workflows/steps/getItemTaxLinesStep/index.html.md) +- [deleteTaxRateRulesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteTaxRateRulesStep/index.html.md) +- [updateTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateTaxRatesStep/index.html.md) - [listTaxRateIdsStep](https://docs.medusajs.com/references/medusa-workflows/steps/listTaxRateIdsStep/index.html.md) - [listTaxRateRuleIdsStep](https://docs.medusajs.com/references/medusa-workflows/steps/listTaxRateRuleIdsStep/index.html.md) -- [updateTaxRatesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateTaxRatesStep/index.html.md) -- [updateTaxRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateTaxRegionsStep/index.html.md) - [createStockLocations](https://docs.medusajs.com/references/medusa-workflows/steps/createStockLocations/index.html.md) +- [updateTaxRegionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateTaxRegionsStep/index.html.md) - [deleteStockLocationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteStockLocationsStep/index.html.md) - [updateStockLocationsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateStockLocationsStep/index.html.md) -- [createUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/createUsersStep/index.html.md) -- [deleteUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteUsersStep/index.html.md) -- [updateUsersStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateUsersStep/index.html.md) -- [associateLocationsWithSalesChannelsStep](https://docs.medusajs.com/references/medusa-workflows/steps/associateLocationsWithSalesChannelsStep/index.html.md) -- [createCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCustomersStep/index.html.md) -- [createCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCustomerAddressesStep/index.html.md) -- [deleteCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCustomerAddressesStep/index.html.md) -- [deleteCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/deleteCustomersStep/index.html.md) -- [maybeUnsetDefaultBillingAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/maybeUnsetDefaultBillingAddressesStep/index.html.md) -- [updateCustomerAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCustomerAddressesStep/index.html.md) -- [maybeUnsetDefaultShippingAddressesStep](https://docs.medusajs.com/references/medusa-workflows/steps/maybeUnsetDefaultShippingAddressesStep/index.html.md) -- [updateCustomersStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCustomersStep/index.html.md) -- [validateCustomerAccountCreation](https://docs.medusajs.com/references/medusa-workflows/steps/validateCustomerAccountCreation/index.html.md) -- [confirmInventoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/confirmInventoryStep/index.html.md) -- [createCartsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createCartsStep/index.html.md) -- [addShippingMethodToCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/addShippingMethodToCartStep/index.html.md) -- [createLineItemAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createLineItemAdjustmentsStep/index.html.md) -- [createPaymentCollectionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createPaymentCollectionsStep/index.html.md) -- [createLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createLineItemsStep/index.html.md) -- [createShippingMethodAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/createShippingMethodAdjustmentsStep/index.html.md) -- [findOrCreateCustomerStep](https://docs.medusajs.com/references/medusa-workflows/steps/findOrCreateCustomerStep/index.html.md) -- [findOneOrAnyRegionStep](https://docs.medusajs.com/references/medusa-workflows/steps/findOneOrAnyRegionStep/index.html.md) -- [findSalesChannelStep](https://docs.medusajs.com/references/medusa-workflows/steps/findSalesChannelStep/index.html.md) -- [getLineItemActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getLineItemActionsStep/index.html.md) -- [getPromotionCodesToApply](https://docs.medusajs.com/references/medusa-workflows/steps/getPromotionCodesToApply/index.html.md) -- [getActionsToComputeFromPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getActionsToComputeFromPromotionsStep/index.html.md) -- [getVariantPriceSetsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantPriceSetsStep/index.html.md) -- [prepareAdjustmentsFromPromotionActionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/prepareAdjustmentsFromPromotionActionsStep/index.html.md) -- [getVariantsStep](https://docs.medusajs.com/references/medusa-workflows/steps/getVariantsStep/index.html.md) -- [removeLineItemAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeLineItemAdjustmentsStep/index.html.md) -- [removeShippingMethodAdjustmentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeShippingMethodAdjustmentsStep/index.html.md) -- [removeShippingMethodFromCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/removeShippingMethodFromCartStep/index.html.md) -- [retrieveCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/retrieveCartStep/index.html.md) -- [reserveInventoryStep](https://docs.medusajs.com/references/medusa-workflows/steps/reserveInventoryStep/index.html.md) -- [setTaxLinesForItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/setTaxLinesForItemsStep/index.html.md) -- [updateCartsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCartsStep/index.html.md) -- [updateCartPromotionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateCartPromotionsStep/index.html.md) -- [updateLineItemsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateLineItemsStep/index.html.md) -- [validateAndReturnShippingMethodsDataStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateAndReturnShippingMethodsDataStep/index.html.md) -- [validateCartPaymentsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartPaymentsStep/index.html.md) -- [updateShippingMethodsStep](https://docs.medusajs.com/references/medusa-workflows/steps/updateShippingMethodsStep/index.html.md) -- [validateCartShippingOptionsPriceStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartShippingOptionsPriceStep/index.html.md) -- [validateCartStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartStep/index.html.md) -- [validateCartShippingOptionsStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateCartShippingOptionsStep/index.html.md) -- [validateLineItemPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateLineItemPricesStep/index.html.md) -- [validateVariantPricesStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateVariantPricesStep/index.html.md) -- [validateShippingStep](https://docs.medusajs.com/references/medusa-workflows/steps/validateShippingStep/index.html.md) # Events Reference @@ -35965,82 +35967,65 @@ medusa new [ []] |\`--db-host \\`|The database host to use for database setup.| -# develop Command - Medusa CLI Reference +# plugin Commands - Medusa CLI Reference -Start Medusa application in development. This command watches files for any changes, then rebuilds the files and restarts the Medusa application. +Commands starting with `plugin:` perform actions related to [plugin](https://docs.medusajs.com/docs/learn/fundamentals/plugins/index.html.md) development. + +These commands are available starting from [Medusa v2.3.0](https://github.com/medusajs/medusa/releases/tag/v2.3.0). + +## plugin:publish + +Publish a plugin into the local packages registry. The command uses [Yalc](https://github.com/wclr/yalc) under the hood to publish the plugin to a local package registry. You can then install the plugin in a local Medusa project using the [plugin:add](#pluginadd) command. ```bash -npx medusa develop +npx medusa plugin:publish ``` -## Options +*** -|Option|Description|Default| +## plugin:add + +Install the specified plugins from the local package registry into a local Medusa application. Plugins can be added to the local package registry using the [plugin:publish](#pluginpublish) command. + +```bash +npx medusa plugin:add [names...] +``` + +### Arguments + +|Argument|Description|Required| |---|---|---|---|---| -|\`-H \\`|Set host of the Medusa server.|\`localhost\`| -|\`-p \\`|Set port of the Medusa server.|\`9000\`| - - -# build Command - Medusa CLI Reference - -Create a standalone build of the Medusa application. - -This creates a build that: - -- Doesn't rely on the source TypeScript files. -- Can be copied to a production server reliably. - -The build is outputted to a new `.medusa/server` directory. - -```bash -npx medusa build -``` - -Refer to [this section](#run-built-medusa-application) for next steps. - -## Options - -|Option|Description| -|---|---|---| -|\`--admin-only\`|Whether to only build the admin to host it separately. If this option is not passed, the admin is built to the | +|\`names\`|The names of one or more plugins to install from the local package registry. A plugin's name is as specified in its |Yes| *** -## Run Built Medusa Application +## plugin:develop -After running the `build` command, use the following step to run the built Medusa application: - -- Change to the `.medusa/server` directory and install the dependencies: - -```bash npm2yarn -cd .medusa/server && npm install -``` - -- When running the application locally, make sure to copy the `.env` file from the root project's directory. In production, use system environment variables instead. - -```bash npm2yarn -cp .env .medusa/server/.env.production -``` - -- In the system environment variables, set `NODE_ENV` to `production`: +Start a development server for a plugin. The command will watch for changes in the plugin's source code and automatically re-publish the changes into the local package registry. ```bash -NODE_ENV=production -``` - -- Use the `start` command to run the application: - -```bash npm2yarn -cd .medusa/server && npm run start +npx medusa plugin:develop ``` *** -## Build Medusa Admin +## plugin:db:generate -By default, the Medusa Admin is built to the `.medusa/server/public/admin` directory. +Generate migrations for all modules in a plugin. -If you want a separate build to host the admin standalone, such as on Vercel, pass the `--admin-only` option as explained in the [Options](#options) section. This outputs the admin to the `.medusa/admin` directory instead. +```bash +npx medusa plugin:db:generate +``` + +*** + +## plugin:build + +Build a plugin before publishing it to NPM. The command will compile an output in the `.medusa/server` directory. + +```bash +npx medusa plugin:build +``` # db Commands - Medusa CLI Reference @@ -36163,83 +36148,6 @@ npx medusa db:sync-links |\`--execute-all\`|Skip prompts when syncing links and execute all (including unsafe) actions.|No|Prompts are shown for unsafe actions, by default.| -# plugin Commands - Medusa CLI Reference - -Commands starting with `plugin:` perform actions related to [plugin](https://docs.medusajs.com/docs/learn/fundamentals/plugins/index.html.md) development. - -These commands are available starting from [Medusa v2.3.0](https://github.com/medusajs/medusa/releases/tag/v2.3.0). - -## plugin:publish - -Publish a plugin into the local packages registry. The command uses [Yalc](https://github.com/wclr/yalc) under the hood to publish the plugin to a local package registry. You can then install the plugin in a local Medusa project using the [plugin:add](#pluginadd) command. - -```bash -npx medusa plugin:publish -``` - -*** - -## plugin:add - -Install the specified plugins from the local package registry into a local Medusa application. Plugins can be added to the local package registry using the [plugin:publish](#pluginpublish) command. - -```bash -npx medusa plugin:add [names...] -``` - -### Arguments - -|Argument|Description|Required| -|---|---|---|---|---| -|\`names\`|The names of one or more plugins to install from the local package registry. A plugin's name is as specified in its |Yes| - -*** - -## plugin:develop - -Start a development server for a plugin. The command will watch for changes in the plugin's source code and automatically re-publish the changes into the local package registry. - -```bash -npx medusa plugin:develop -``` - -*** - -## plugin:db:generate - -Generate migrations for all modules in a plugin. - -```bash -npx medusa plugin:db:generate -``` - -*** - -## plugin:build - -Build a plugin before publishing it to NPM. The command will compile an output in the `.medusa/server` directory. - -```bash -npx medusa plugin:build -``` - - -# telemetry Command - Medusa CLI Reference - -Enable or disable the collection of anonymous data usage. If no option is provided, the command enables the collection of anonymous data usage. - -```bash -npx medusa telemetry -``` - -#### Options - -|Option|Description| -|---|---|---| -|\`--enable\`|Enable telemetry (default).| -|\`--disable\`|Disable telemetry.| - - # start Command - Medusa CLI Reference Start the Medusa application in production. @@ -36257,6 +36165,84 @@ npx medusa start |\`--cluster \\`|Start Medusa's Node.js server in |Cluster mode is disabled by default. If the option is passed but no number is passed, Medusa will try to consume all available CPU cores.| +# develop Command - Medusa CLI Reference + +Start Medusa application in development. This command watches files for any changes, then rebuilds the files and restarts the Medusa application. + +```bash +npx medusa develop +``` + +## Options + +|Option|Description|Default| +|---|---|---|---|---| +|\`-H \\`|Set host of the Medusa server.|\`localhost\`| +|\`-p \\`|Set port of the Medusa server.|\`9000\`| + + +# build Command - Medusa CLI Reference + +Create a standalone build of the Medusa application. + +This creates a build that: + +- Doesn't rely on the source TypeScript files. +- Can be copied to a production server reliably. + +The build is outputted to a new `.medusa/server` directory. + +```bash +npx medusa build +``` + +Refer to [this section](#run-built-medusa-application) for next steps. + +## Options + +|Option|Description| +|---|---|---| +|\`--admin-only\`|Whether to only build the admin to host it separately. If this option is not passed, the admin is built to the | + +*** + +## Run Built Medusa Application + +After running the `build` command, use the following step to run the built Medusa application: + +- Change to the `.medusa/server` directory and install the dependencies: + +```bash npm2yarn +cd .medusa/server && npm install +``` + +- When running the application locally, make sure to copy the `.env` file from the root project's directory. In production, use system environment variables instead. + +```bash npm2yarn +cp .env .medusa/server/.env.production +``` + +- In the system environment variables, set `NODE_ENV` to `production`: + +```bash +NODE_ENV=production +``` + +- Use the `start` command to run the application: + +```bash npm2yarn +cd .medusa/server && npm run start +``` + +*** + +## Build Medusa Admin + +By default, the Medusa Admin is built to the `.medusa/server/public/admin` directory. + +If you want a separate build to host the admin standalone, such as on Vercel, pass the `--admin-only` option as explained in the [Options](#options) section. This outputs the admin to the `.medusa/admin` directory instead. + + # user Command - Medusa CLI Reference Create a new admin user. @@ -36276,6 +36262,22 @@ npx medusa user --email [--password ] If ran successfully, you'll receive the invite token in the output.|No|\`false\`| +# telemetry Command - Medusa CLI Reference + +Enable or disable the collection of anonymous data usage. If no option is provided, the command enables the collection of anonymous data usage. + +```bash +npx medusa telemetry +``` + +#### Options + +|Option|Description| +|---|---|---| +|\`--enable\`|Enable telemetry (default).| +|\`--disable\`|Disable telemetry.| + + # Medusa CLI Reference The Medusa CLI tool provides commands that facilitate your development. @@ -36299,6 +36301,68 @@ npx medusa --help *** +# build Command - Medusa CLI Reference + +Create a standalone build of the Medusa application. + +This creates a build that: + +- Doesn't rely on the source TypeScript files. +- Can be copied to a production server reliably. + +The build is outputted to a new `.medusa/server` directory. + +```bash +npx medusa build +``` + +Refer to [this section](#run-built-medusa-application) for next steps. + +## Options + +|Option|Description| +|---|---|---| +|\`--admin-only\`|Whether to only build the admin to host it separately. If this option is not passed, the admin is built to the | + +*** + +## Run Built Medusa Application + +After running the `build` command, use the following step to run the built Medusa application: + +- Change to the `.medusa/server` directory and install the dependencies: + +```bash npm2yarn +cd .medusa/server && npm install +``` + +- When running the application locally, make sure to copy the `.env` file from the root project's directory. In production, use system environment variables instead. + +```bash npm2yarn +cp .env .medusa/server/.env.production +``` + +- In the system environment variables, set `NODE_ENV` to `production`: + +```bash +NODE_ENV=production +``` + +- Use the `start` command to run the application: + +```bash npm2yarn +cd .medusa/server && npm run start +``` + +*** + +## Build Medusa Admin + +By default, the Medusa Admin is built to the `.medusa/server/public/admin` directory. + +If you want a separate build to host the admin standalone, such as on Vercel, pass the `--admin-only` option as explained in the [Options](#options) section. This outputs the admin to the `.medusa/admin` directory instead. + + # exec Command - Medusa CLI Reference Run a custom CLI script. Learn more about it in [this guide](https://docs.medusajs.com/docs/learn/fundamentals/custom-cli-scripts/index.html.md). @@ -36405,23 +36469,6 @@ npx medusa plugin:build ``` -# start Command - Medusa CLI Reference - -Start the Medusa application in production. - -```bash -npx medusa start -``` - -## Options - -|Option|Description|Default| -|---|---|---|---|---| -|\`-H \\`|Set host of the Medusa server.|\`localhost\`| -|\`-p \\`|Set port of the Medusa server.|\`9000\`| -|\`--cluster \\`|Start Medusa's Node.js server in |Cluster mode is disabled by default. If the option is passed but no number is passed, Medusa will try to consume all available CPU cores.| - - # db Commands - Medusa CLI Reference Commands starting with `db:` perform actions on the database. @@ -36542,66 +36589,37 @@ npx medusa db:sync-links |\`--execute-all\`|Skip prompts when syncing links and execute all (including unsafe) actions.|No|Prompts are shown for unsafe actions, by default.| -# build Command - Medusa CLI Reference +# develop Command - Medusa CLI Reference -Create a standalone build of the Medusa application. - -This creates a build that: - -- Doesn't rely on the source TypeScript files. -- Can be copied to a production server reliably. - -The build is outputted to a new `.medusa/server` directory. +Start Medusa application in development. This command watches files for any changes, then rebuilds the files and restarts the Medusa application. ```bash -npx medusa build +npx medusa develop ``` -Refer to [this section](#run-built-medusa-application) for next steps. - ## Options -|Option|Description| -|---|---|---| -|\`--admin-only\`|Whether to only build the admin to host it separately. If this option is not passed, the admin is built to the | +|Option|Description|Default| +|---|---|---|---|---| +|\`-H \\`|Set host of the Medusa server.|\`localhost\`| +|\`-p \\`|Set port of the Medusa server.|\`9000\`| -*** -## Run Built Medusa Application +# start Command - Medusa CLI Reference -After running the `build` command, use the following step to run the built Medusa application: - -- Change to the `.medusa/server` directory and install the dependencies: - -```bash npm2yarn -cd .medusa/server && npm install -``` - -- When running the application locally, make sure to copy the `.env` file from the root project's directory. In production, use system environment variables instead. - -```bash npm2yarn -cp .env .medusa/server/.env.production -``` - -- In the system environment variables, set `NODE_ENV` to `production`: +Start the Medusa application in production. ```bash -NODE_ENV=production +npx medusa start ``` -- Use the `start` command to run the application: +## Options -```bash npm2yarn -cd .medusa/server && npm run start -``` - -*** - -## Build Medusa Admin - -By default, the Medusa Admin is built to the `.medusa/server/public/admin` directory. - -If you want a separate build to host the admin standalone, such as on Vercel, pass the `--admin-only` option as explained in the [Options](#options) section. This outputs the admin to the `.medusa/admin` directory instead. +|Option|Description|Default| +|---|---|---|---|---| +|\`-H \\`|Set host of the Medusa server.|\`localhost\`| +|\`-p \\`|Set port of the Medusa server.|\`9000\`| +|\`--cluster \\`|Start Medusa's Node.js server in |Cluster mode is disabled by default. If the option is passed but no number is passed, Medusa will try to consume all available CPU cores.| # telemetry Command - Medusa CLI Reference @@ -36620,22 +36638,6 @@ npx medusa telemetry |\`--disable\`|Disable telemetry.| -# develop Command - Medusa CLI Reference - -Start Medusa application in development. This command watches files for any changes, then rebuilds the files and restarts the Medusa application. - -```bash -npx medusa develop -``` - -## Options - -|Option|Description|Default| -|---|---|---|---|---| -|\`-H \\`|Set host of the Medusa server.|\`localhost\`| -|\`-p \\`|Set port of the Medusa server.|\`9000\`| - - # user Command - Medusa CLI Reference Create a new admin user. @@ -46439,510 +46441,6 @@ If you are new to Medusa, check out the [main documentation](https://docs.medusa To learn more about the commerce features that Medusa provides, check out Medusa's [Commerce Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/index.html.md). -# Implement Quick Re-Order Functionality in Medusa - -In this tutorial, you'll learn how to implement a re-order functionality in Medusa. - -When you install a Medusa application, you get a fully-fledged commerce platform with a Framework for customization. The Medusa application's commerce features are built around [Commerce Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/index.html.md) which are available out-of-the-box. The features include order-management features. - -The Medusa Framework facilitates building custom features that are necessary for your business use case. In this tutorial, you'll learn how to implement a re-order functionality in Medusa. This feature is useful for businesses whose customers are likely to repeat their orders, such as B2B or food delivery businesses. - -You can follow this guide whether you're new to Medusa or an advanced Medusa developer. - -## Summary - -By following this tutorial, you'll learn how to: - -- Install and set up Medusa. -- Define the logic to re-order an order. -- Customize the Next.js Starter Storefront to add a re-order button. - -![Diagram showcasing the re-order logic](https://res.cloudinary.com/dza7lstvk/image/upload/v1746451309/Medusa%20Resources/reorder-summary_wnbbws.jpg) - -- [Re-Order Repository](https://github.com/medusajs/examples/tree/main/re-order): Find the full code for this guide in this repository. -- [OpenApi Specs for Postman](https://res.cloudinary.com/dza7lstvk/raw/upload/v1741941475/OpenApi/product-reviews_jh8ohj.yaml): Import this OpenApi Specs file into tools like Postman. - -*** - -## Step 1: Install a Medusa Application - -### Prerequisites - -- [Node.js v20+](https://nodejs.org/en/download) -- [Git CLI tool](https://git-scm.com/downloads) -- [PostgreSQL](https://www.postgresql.org/download/) - -Start by installing the Medusa application on your machine with the following command: - -```bash -npx create-medusa-app@latest -``` - -You'll first be asked for the project's name. Then, when asked whether you want to install the [Next.js Starter Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md), choose Yes. - -Afterwards, the installation process will start, which will install the Medusa application in a directory with your project's name, and the Next.js Starter Storefront in a separate directory with the `{project-name}-storefront` name. - -The Medusa application is composed of a headless Node.js server and an admin dashboard. The storefront is installed or custom-built separately and connects to the Medusa application through its REST endpoints, called [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md). Learn more in [Medusa's Architecture documentation](https://docs.medusajs.com/docs/learn/introduction/architecture/index.html.md). - -Once the installation finishes successfully, the Medusa Admin dashboard will open with a form to create a new user. Enter the user's credentials and submit the form. Afterwards, you can log in with the new user and explore the dashboard. - -Check out the [troubleshooting guides](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/troubleshooting/create-medusa-app-errors/index.html.md) for help. - -*** - -## Step 2: Implement Re-Order Workflow - -To build custom commerce features in Medusa, you create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). A workflow is a series of queries and actions, called steps, that complete a task. - -By using workflows, you can track their executions' progress, define roll-back logic, and configure other advanced features. Then, you execute the workflow from other customizations, such as in an API Route. - -In this section, you'll implement the re-order functionality in a workflow. Later, you'll execute the workflow in a custom API route. - -Refer to the [Workflows documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md) to learn more. - -The workflow will have the following steps: - -- [useQueryGraphStep](https://docs.medusajs.com/references/helper-steps/useQueryGraphStep/index.html.md): Retrieve the order's details. -- [createCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/createCartWorkflow/index.html.md): Create a cart for the re-order. -- [addShippingMethodToCartWorkflow](https://docs.medusajs.com/references/medusa-workflows/addShippingMethodToCartWorkflow/index.html.md): Add the order's shipping method(s) to the cart. -- [useQueryGraphStep](https://docs.medusajs.com/references/helper-steps/useQueryGraphStep/index.html.md): Retrieve the cart's details. - -This workflow uses steps from Medusa's `@medusajs/medusa/core-flows` package. So, you can implement the workflow without implementing custom steps. - -### a. Create the Workflow - -To create the workflow, create the file `src/workflows/reorder.ts` with the following content: - -```ts title="src/workflows/reorder.ts" highlights={workflowHighlights1} -import { - createWorkflow, - transform, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -import { - addShippingMethodToCartWorkflow, - createCartWorkflow, - useQueryGraphStep, -} from "@medusajs/medusa/core-flows" - -type ReorderWorkflowInput = { - order_id: string -} - -export const reorderWorkflow = createWorkflow( - "reorder", - ({ order_id }: ReorderWorkflowInput) => { - // @ts-ignore - const { data: orders } = useQueryGraphStep({ - entity: "order", - fields: [ - "*", - "items.*", - "shipping_address.*", - "billing_address.*", - "region.*", - "sales_channel.*", - "shipping_methods.*", - "customer.*", - ], - filters: { - id: order_id, - }, - }) - - // TODO create a cart with the order's items - } -) -``` - -You create a workflow using `createWorkflow` from the Workflows SDK. It accepts the workflow's unique name as a first parameter. - -It accepts as a second parameter a constructor function, which is the workflow's implementation. The function can accept input, which in this case is an object holding the ID of the order to re-order. - -In the workflow's constructor function, so far you use the `useQueryGraphStep` step to retrieve the order's details. This step uses [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) under the hood, which allows you to query data across [modules](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md). - -Refer to the [Query documentation](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) to learn more about how to use it. - -### b. Create a Cart - -Next, you need to create a cart using the old order's details. You can use the `createCartWorkflow` step to create a cart, but you first need to prepare its input data. - -Replace the `TODO` in the workflow with the following: - -```ts title="src/workflows/reorder.ts" highlights={workflowHighlights2} -const createInput = transform({ - orders, -}, (data) => { - return { - region_id: data.orders[0].region_id!, - sales_channel_id: data.orders[0].sales_channel_id!, - customer_id: data.orders[0].customer_id!, - email: data.orders[0].email!, - billing_address: { - first_name: data.orders[0].billing_address?.first_name!, - last_name: data.orders[0].billing_address?.last_name!, - address_1: data.orders[0].billing_address?.address_1!, - city: data.orders[0].billing_address?.city!, - country_code: data.orders[0].billing_address?.country_code!, - province: data.orders[0].billing_address?.province!, - postal_code: data.orders[0].billing_address?.postal_code!, - phone: data.orders[0].billing_address?.phone!, - }, - shipping_address: { - first_name: data.orders[0].shipping_address?.first_name!, - last_name: data.orders[0].shipping_address?.last_name!, - address_1: data.orders[0].shipping_address?.address_1!, - city: data.orders[0].shipping_address?.city!, - country_code: data.orders[0].shipping_address?.country_code!, - province: data.orders[0].shipping_address?.province!, - postal_code: data.orders[0].shipping_address?.postal_code!, - phone: data.orders[0].shipping_address?.phone!, - }, - items: data.orders[0].items?.map((item) => ({ - variant_id: item?.variant_id!, - quantity: item?.quantity!, - unit_price: item?.unit_price!, - })), - } -}) - -const { id: cart_id } = createCartWorkflow.runAsStep({ - input: createInput, -}) - -// TODO add the shipping method to the cart -``` - -Data manipulation is not allowed in a workflow, as Medusa stores its definition before executing it. Instead, you can use `transform` from the Workflows SDK to manipulate the data. - -Learn more about why you can't manipulate data in a workflow and the `transform` function in the [Data Manipulation in Workflows documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/variable-manipulation/index.html.md). - -`transform` accepts the following parameters: - -1. The data to use in the transformation function. -2. A transformation function that accepts the data from the first parameter and returns the transformed data. - -In the above code snippet, you use `transform` to create the input for the `createCartWorkflow` step. The input is an object that holds the cart's details, including its items, shipping and billing addresses, and more. - -Learn about other input parameters you can pass in the [createCartWorkflow reference](https://docs.medusajs.com/references/medusa-workflows/createCartWorkflow/index.html.md). - -After that, you execute the `createCartWorkflow` passing it the transformed input. The workflow returns the cart's details, including its ID. - -### c. Add Shipping Methods - -Next, you need to add the order's shipping method(s) to the cart. This saves the customer from having to select a shipping method again. - -You can use the `addShippingMethodToCartWorkflow` step to add the shipping method(s) to the cart. - -Replace the `TODO` in the workflow with the following: - -```ts title="src/workflows/reorder.ts" highlights={workflowHighlights3} -const addShippingMethodToCartInput = transform({ - cart_id, - orders, -}, (data) => { - return { - cart_id: data.cart_id, - options: data.orders[0].shipping_methods?.map((method) => ({ - id: method?.shipping_option_id!, - data: method?.data!, - })) ?? [], - } -}) - -addShippingMethodToCartWorkflow.runAsStep({ - input: addShippingMethodToCartInput, -}) - -// TODO retrieve and return the cart's details -``` - -Again, you use `transform` to prepare the input for the `addShippingMethodToCartWorkflow`. The input includes the cart's ID and the shipping method(s) to add to the cart. - -Then, you execute the `addShippingMethodToCartWorkflow` to add the shipping method(s) to the cart. - -### d. Retrieve and Return the Cart's Details - -Finally, you need to retrieve the cart's details and return them as the workflow's output. - -Replace the `TODO` in the workflow with the following: - -```ts title="src/workflows/reorder.ts" highlights={workflowHighlights4} -// @ts-ignore -const { data: carts } = useQueryGraphStep({ - entity: "cart", - fields: [ - "*", - "items.*", - "shipping_methods.*", - "shipping_address.*", - "billing_address.*", - "region.*", - "sales_channel.*", - "promotions.*", - "currency_code", - "subtotal", - "item_total", - "total", - "item_subtotal", - "shipping_subtotal", - "customer.*", - "payment_collection.*", - - ], - filters: { - id: cart_id, - }, -}).config({ name: "retrieve-cart" }) - -return new WorkflowResponse(carts[0]) -``` - -You execute the `useQueryGraphStep` again to retrieve the cart's details. Since you're re-using a step, you have to rename it using the `config` method. - -Finally, you return the cart's details. A workflow must return an instance of `WorkflowResponse`. - -The `WorkflowResponse` constructor accepts the workflow's output as a parameter, which is the cart's details in this case. - -In the next step, you'll create an API route that exposes the re-order functionality. - -*** - -## Step 3: Create Re-Order API Route - -Now that you have the logic to re-order, you need to expose it so that frontend clients, such as a storefront, can use it. You do this by creating an [API route](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md). - -An API Route is an endpoint that exposes commerce features to external applications and clients, such as storefronts. You'll create an API route at the path `/store/customers/me/orders/:id` that executes the workflow from the previous step. - -Refer to the [API Routes documentation](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md) to learn more. - -An API route is created in a `route.ts` file under a sub-directory of the `src/api` directory. The path of the API route is the file's path relative to `src/api`. - -So, create the file `src/api/store/customers/me/orders/[id]/route.ts` with the following content: - -```ts title="src/api/store/customers/me/orders/[id]/route.ts" -import { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { reorderWorkflow } from "../../../../../../workflows/reorder" - -export async function POST( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) { - const { id } = req.params - - const { result } = await reorderWorkflow(req.scope).run({ - input: { - order_id: id, - }, - }) - - return res.json({ - cart: result, - }) -} -``` - -Since you export a `POST` route handler function, you expose a `POST` API route at `/store/customers/me/orders/:id`. - -API routes that start with `/store/customers/me` are protected by default, meaning that only authenticated customers can access them. Learn more in the [Protected API Routes documentation](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/protected-routes/index.html.md). - -The route handler function accepts two parameters: - -1. A request object with details and context on the request, such as path parameters or authenticated customer details. -2. A response object to manipulate and send the response. - -In the route handler function, you execute the `reorderWorkflow`. To execute a workflow, you: - -- Invoke it, passing it the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md) available in the `req.scope` property. - - The Medusa container is a registry of Framework and commerce resources that you can resolve and use in your customizations. -- Call the `run` method, passing it an object with the workflow's input. - -You pass the order ID from the request's path parameters as the workflow's input. Finally, you return the created cart's details in the response. - -You'll test out this API route after you customize the Next.js Starter Storefront. - -*** - -## Step 4: Customize the Next.js Starter Storefront - -In this step, you'll customize the [Next.js Starter Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md) to add a re-order button. You installed the Next.js Starter Storefront in the first step with the Medusa application, but you can also install it separately as explained in the [Next.js Starter Storefront documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md). - -The Next.js Starter Storefront provides rich commerce features and a sleek design. You can use it as-is or build on top of it to tailor it for your business's unique use case, design, and customer experience. - -The Next.js Starter Storefront was installed in a separate directory from Medusa. The directory's name is `{your-project}-storefront`. - -So, if your Medusa application's directory is `medusa-reorder`, you can find the storefront by going back to the parent directory and changing to the `medusa-reorder-storefront` directory: - -```bash -cd ../medusa-reorder-storefront # change based on your project name -``` - -To add the re-order button, you will: - -- Add a server function that re-orders an order using the API route from the previous step. -- Add a button to the order details page that calls the server function. - -### a. Add the Server Function - -You'll add the server function for the re-order functionality in the `src/lib/data/orders.ts` file. - -First, add the following import statement to the top of the file: - -```ts title="src/lib/data/orders.ts" badgeLabel="Storefront" badgeColor="blue" -import { setCartId } from "./cookies" -``` - -Then, add the function at the end of the file: - -```ts title="src/lib/data/orders.ts" badgeLabel="Storefront" badgeColor="blue" -export const reorder = async (id: string) => { - const headers = await getAuthHeaders() - - const { cart } = await sdk.client.fetch( - `/store/customers/me/orders/${id}`, - { - method: "POST", - headers, - } - ) - - await setCartId(cart.id) - - return cart -} -``` - -You add a function that accepts the order ID as a parameter. - -The function uses the `client.fetch` method of the [JS SDK](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/js-sdk/index.html.md) to send a request to the API route you created in the previous step. - -The JS SDK is already configured in the Next.js Starter Storefront. Refer to the [JS SDK documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/js-sdk/index.html.md) to learn more about it. - -Once the request succeeds, you use the `setCartId` function that's defined in the storefront to set the cart ID in a cookie. This ensures the cart is used across the storefront. - -Finally, you return the cart's details. - -### b. Add the Re-Order Button Component - -Next, you'll add the component that shows the re-order button. You'll later add the component to the order details page. - -To create the component, create the file `src/modules/order/components/reorder-action/index.tsx` with the following content: - -```tsx title="src/modules/order/components/reorder-action/index.tsx" badgeLabel="Storefront" badgeColor="blue" highlights={componentHighlights} -import { Button, toast } from "@medusajs/ui" -import { reorder } from "../../../../lib/data/orders" -import { useState } from "react" -import { useRouter } from "next/navigation" - -type ReorderActionProps = { - orderId: string -} - -export default function ReorderAction({ orderId }: ReorderActionProps) { - const [isLoading, setIsLoading] = useState(false) - const router = useRouter() - - const handleReorder = async () => { - setIsLoading(true) - try { - const cart = await reorder(orderId) - - setIsLoading(false) - toast.success("Prepared cart to reorder. Proceeding to checkout...") - router.push(`/${cart.shipping_address!.country_code}/checkout?step=payment`) - } catch (error) { - setIsLoading(false) - toast.error(`Error reordering: ${error}`) - } - } - - return ( - - ) -} -``` - -You create a `ReorderAction` component that accepts the order ID as a prop. - -In the component, you render a button that, when clicked, calls a `handleReorder` function. The function calls the `reorder` function you created in the previous step to re-order the order. - -If the re-order succeeds, you redirect the user to the payment step of the checkout page. If it fails, you show an error message. - -### c. Show Re-Order Button on Order Details Page - -Finally, you'll show the `ReorderAction` component on the order details page. - -In `src/modules/order/templates/order-details-template.tsx`, add the following import statement to the top of the file: - -```tsx title="src/modules/order/templates/order-details-template.tsx" badgeLabel="Storefront" badgeColor="blue" -import ReorderAction from "../components/reorder-action" -``` - -Then, in the return statement of the `OrderDetailsTemplate` component, find the `OrderDetails` component and add the `ReorderAction` component below it: - -```tsx title="src/modules/order/templates/order-details-template.tsx" badgeLabel="Storefront" badgeColor="blue" - -``` - -The re-order button will now be shown on the order details page. - -### Test it Out - -You'll now test out the re-order functionality. - -First, to start the Medusa application, run the following command in the Medusa application's directory: - -```bash npm2yarn badgeLabel="Medusa application" badgeColor="green" -npm run dev -``` - -Then, in the Next.js Starter Storefront directory, run the following command to start the storefront: - -```bash npm2yarn badgeLabel="Storefront" badgeColor="blue" -npm run dev -``` - -The storefront will be running at `http://localhost:8000`. Open it in your browser. - -To test out the re-order functionality: - -- Create an account in the storefront. -- Add a product to the cart and complete the checkout process to place an order. -- Go to Account -> Orders, and click on the "See details" button. - -![Orders page on customer account](https://res.cloudinary.com/dza7lstvk/image/upload/v1746449666/Medusa%20Resources/Screenshot_2025-05-05_at_3.52.46_PM_ae4e78.png) - -On the order's details page, you'll find a "Reorder" button. - -![Reorder button on order details page](https://res.cloudinary.com/dza7lstvk/image/upload/v1746450255/Medusa%20Resources/Screenshot_2025-05-05_at_4.03.51_PM_xaslqo.png) - -When you click on the button, a new cart will be created with the order's details, and you'll be redirected to the checkout page where you can complete the purchase. - -![Checkout page showing the payment step](https://res.cloudinary.com/dza7lstvk/image/upload/v1746450342/Medusa%20Resources/Screenshot_2025-05-05_at_4.05.29_PM_vqpdqo.png) - -*** - -## Next Steps - -You now have a re-order functionality in your Medusa application and Next.js Starter Storefront. You can expand more on this feature based on your use case. - -For example, you can add quick orders on the storefront's homepage, allowing customers to quickly re-order their last orders. - -If you're new to Medusa, check out the [main documentation](https://docs.medusajs.com/docs/learn/index.html.md), where you'll get a more in-depth learning of all the concepts you've used in this guide and more. - -To learn more about the commerce features that Medusa provides, check out Medusa's [Commerce Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/index.html.md). - - # Implement Loyalty Points System in Medusa In this tutorial, you'll learn how to implement a loyalty points system in Medusa. @@ -48734,1876 +48232,6 @@ If you're new to Medusa, check out the [main documentation](https://docs.medusaj To learn more about the commerce features that Medusa provides, check out Medusa's [Commerce Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/index.html.md). -# Implement Product Reviews in Medusa - -In this tutorial, you'll learn how to implement product reviews in Medusa. - -When you install a Medusa application, you get a fully-fledged commerce platform with a Framework for customization. The Medusa application's commerce features are built around [Commerce Modules](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/index.html.md) which are available out-of-the-box. The features include product-management features. - -Medusa doesn't provide product reviews out-of-the-box, but the Medusa Framework facilitates implementing customizations like product reviews. In this tutorial, you'll learn how to customize the Medusa server, Admin dashboard, and Next.js Starter Storefront to implement product reviews. - -You can follow this guide whether you're new to Medusa or an advanced Medusa developer. - -## Summary - -By following this tutorial, you'll learn how to: - -- Install and set up Medusa. -- Define product reviews models and implement their management features in the Medusa server. -- Customize the Medusa Admin to allow merchants to view and manage product reviews. -- Customize the Next.js Starter Storefront to display product reviews and allow customers to submit reviews. - -![Diagram showcasing the product review features in the storefront and admin](https://res.cloudinary.com/dza7lstvk/image/upload/v1741941058/Medusa%20Resources/reviews-overview_nufybf.jpg) - -- [Product Reviews Repository](https://github.com/medusajs/examples/tree/main/product-reviews): Find the full code for this guide in this repository. -- [OpenApi Specs for Postman](https://res.cloudinary.com/dza7lstvk/raw/upload/v1741941475/OpenApi/product-reviews_jh8ohj.yaml): Import this OpenApi Specs file into tools like Postman. - -*** - -## Step 1: Install a Medusa Application - -### Prerequisites - -- [Node.js v20+](https://nodejs.org/en/download) -- [Git CLI tool](https://git-scm.com/downloads) -- [PostgreSQL](https://www.postgresql.org/download/) - -Start by installing the Medusa application on your machine with the following command: - -```bash -npx create-medusa-app@latest -``` - -You'll first be asked for the project's name. Then, when asked whether you want to install the [Next.js Starter Storefront](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/nextjs-starter/index.html.md), choose Yes. - -Afterwards, the installation process will start, which will install the Medusa application in a directory with your project's name, and the Next.js Starter Storefront in a separate directory with the `{project-name}-storefront` name. - -The Medusa application is composed of a headless Node.js server and an admin dashboard. The storefront is installed or custom-built separately and connects to the Medusa application through its REST endpoints, called [API routes](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md). Learn more in [Medusa's Architecture documentation](https://docs.medusajs.com/docs/learn/introduction/architecture/index.html.md). - -Once the installation finishes successfully, the Medusa Admin dashboard will open with a form to create a new user. Enter the user's credentials and submit the form. Afterwards, you can log in with the new user and explore the dashboard. - -Check out the [troubleshooting guides](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/troubleshooting/create-medusa-app-errors/index.html.md) for help. - -*** - -## Step 2: Add Product Review Module - -In Medusa, you can build custom features in a [module](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md). A module is a reusable package with functionalities related to a single feature or domain. Medusa integrates the module into your application without implications or side effects on your setup. - -In the module, you define the data models necessary for a feature and the logic to manage these data models. Later, you can build commerce flows around your module. - -In this step, you'll build a Product Review Module that defines the necessary data models to store and manage product reviews. - -Refer to the [Modules documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/index.html.md) to learn more. - -### Create Module Directory - -A module is created under the `src/modules` directory of your Medusa application. So, create the directory `src/modules/product-review`. - -### Create Data Models - -A data model represents a table in the database. You create data models using Medusa's Data Model Language (DML). It simplifies defining a table's columns, relations, and indexes with straightforward methods and configurations. - -Refer to the [Data Models documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules#1-create-data-model/index.html.md) to learn more. - -For the Product Review Module, you need to define a `Review` data model that represents a product review. So, create the file `src/modules/product-review/models/review.ts` with the following content: - -```ts title="src/modules/product-review/models/review.ts" -import { model } from "@medusajs/framework/utils" - -const Review = model.define("review", { - id: model.id().primaryKey(), - title: model.text().nullable(), - content: model.text(), - rating: model.float(), - first_name: model.text(), - last_name: model.text(), - status: model.enum(["pending", "approved", "rejected"]).default("pending"), - product_id: model.text().index("IDX_REVIEW_PRODUCT_ID"), - customer_id: model.text().nullable(), -}) -.checks([ - { - name: "rating_range", - expression: (columns) => `${columns.rating} >= 1 AND ${columns.rating} <= 5`, - }, -]) - -export default Review -``` - -You define the `Review` data model using the `model.define` method of the DML. It accepts the data model's table name as a first parameter, and the model's schema object as a second parameter. - -The `Review` data model has the following properties: - -- `id`: A unique ID for the review. -- `title`: The review's title. -- `content`: The review's content. -- `rating`: The review's rating. You also add a [check constraint](https://docs.medusajs.com/docs/learn/fundamentals/data-models/check-constraints/index.html.md) to ensure the rating is between 1 and 5. -- `first_name`: The first name of the reviewer. -- `last_name`: The last name of the reviewer. -- `status`: The review's status, which can be `pending`, `approved`, or `rejected`. -- `product_id`: The ID of the product the review is for. -- `customer_id`: The ID of the customer who submitted the review. - -Learn more about defining data model properties in the [Property Types documentation](https://docs.medusajs.com/docs/learn/fundamentals/data-models/properties/index.html.md). - -### Create Module's Service - -You now have the necessary data model in the Review Module, but you'll need to manage its records. You do this by creating a service in the module. - -A service is a TypeScript or JavaScript class that the module exports. In the service's methods, you can connect to the database, allowing you to manage your data models, or connect to a third-party service, which is useful if you're integrating with external services. - -Refer to the [Module Service documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules#2-create-service/index.html.md) to learn more. - -To create the Review Module's service, create the file `src/modules/product-review/service.ts` with the following content: - -```ts title="src/modules/product-review/service.ts" -import { MedusaService } from "@medusajs/framework/utils" -import Review from "./models/review" - -class ProductReviewModuleService extends MedusaService({ - Review, -}) { -} - -export default ProductReviewModuleService -``` - -The `ProductReviewModuleService` extends `MedusaService` from the Modules SDK which generates a class with data-management methods for your module's data models. This saves you time on implementing Create, Read, Update, and Delete (CRUD) methods. - -So, the `ProductReviewModuleService` class now has methods like `createReviews` and `retrieveReview`. - -Find all methods generated by the `MedusaService` in [the Service Factory reference](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/service-factory-reference/index.html.md). - -You'll use this service later when you implement custom flows for product reviews. - -### Export Module Definition - -The final piece to a module is its definition, which you export in an `index.ts` file at its root directory. This definition tells Medusa the name of the module and its service. - -So, create the file `src/modules/product-review/index.ts` with the following content: - -```ts title="src/modules/product-review/index.ts" -import { Module } from "@medusajs/framework/utils" -import ProductReviewModuleService from "./service" - -export const PRODUCT_REVIEW_MODULE = "productReview" - -export default Module(PRODUCT_REVIEW_MODULE, { - service: ProductReviewModuleService, -}) -``` - -You use the `Module` function from the Modules SDK to create the module's definition. It accepts two parameters: - -1. The module's name, which is `productReview`. -2. An object with a required property `service` indicating the module's service. - -You also export the module's name as `PRODUCT_REVIEW_MODULE` so you can reference it later. - -### Add Module to Medusa's Configurations - -Once you finish building the module, add it to Medusa's configurations to start using it. - -In `medusa-config.ts`, add a `modules` property and pass an array with your custom module: - -```ts title="medusa-config.ts" -module.exports = defineConfig({ - // ... - modules: [ - { - resolve: "./src/modules/product-review", - }, - ], -}) -``` - -Each object in the `modules` array has a `resolve` property, whose value is either a path to the module's directory, or an `npm` package’s name. - -### Generate Migrations - -Since data models represent tables in the database, you define how they're created in the database with migrations. A migration is a TypeScript or JavaScript file that defines database changes made by a module. - -Refer to the [Migrations documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules#5-generate-migrations/index.html.md) to learn more. - -Medusa's CLI tool can generate the migrations for you. To generate a migration for the Review Module, run the following command in your Medusa application's directory: - -```bash -npx medusa db:generate productReview -``` - -The `db:generate` command of the Medusa CLI accepts the name of the module to generate the migration for. You'll now have a `migrations` directory under `src/modules/product-review` that holds the generated migration. - -Then, to reflect these migrations on the database, run the following command: - -```bash -npx medusa db:migrate -``` - -The table for the `Review` data model is now created in the database. - -*** - -## Step 3: Define Review \<> Product Link - -When you defined the `Review` data model, you added properties that store the ID of records managed by other modules. For example, the `product_id` property stores the ID of the product this review is for, but products are managed by the [Product Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/product/index.html.md). - -Medusa integrates modules into your application without implications or side effects by isolating modules from one another. This means you can't directly create relationships between data models in your module and data models in other modules. - -Instead, Medusa provides the mechanism to define links between data models, and retrieve and manage linked records while maintaining module isolation. Links are useful to define associations between data models in different modules, or extend a model in another module to associate custom properties with it. - -Refer to the [Module Isolation documentation](https://docs.medusajs.com/docs/learn/fundamentals/modules/isolation/index.html.md) to learn more. - -In this step, you'll define a link between the Product Review Module's `Review` data model, and the Product Module's `Product` data model. You'll then use this link to retrieve the product associated with a review. - -You can also define a link between the `Review` data model and the `Customer` data model to retrieve the customer who submitted the review in a similar manner. - -You can define links between data models in a TypeScript or JavaScript file under the `src/links` directory. So, create the file `src/links/review-product.ts` with the following content: - -```ts title="src/links/review-product.ts" -import { defineLink } from "@medusajs/framework/utils" -import ProductReviewModule from "../modules/product-review" -import ProductModule from "@medusajs/medusa/product" - -export default defineLink( - { - linkable: ProductReviewModule.linkable.review, - field: "product_id", - isList: false, - }, - ProductModule.linkable.product, - { - readOnly: true, - } -) -``` - -You define a link using the `defineLink` function from the Modules SDK. It accepts three parameters: - -1. An object indicating the first data model part of the link. A module has a special `linkable` property that contains link configurations for its data models. So, you can pass the link configurations for the `Review` data model from the Product Review module, specifying that its `product_id` property holds the ID of the linked record. You also specify `isList` as `false` since a review can only have one product. -2. An object indicating the second data model part of the link. You pass the linkable configurations of the Product Module's `Product` data model. -3. An optional object with additional configurations for the link. By default, Medusa creates a table in the database to represent the link you define. However, when you only want to retrieve the linked records without managing and storing the links, you can set the `readOnly` option to `true`. - -You can now retrieve the product of a review, as you'll see in later steps. - -*** - -## Step 4: Create Review Workflow - -You're now ready to start implementing product-review features. The first one you'll implement is the ability for customers to create a product review. - -To build custom commerce features in Medusa, you create a [workflow](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). A workflow is a series of queries and actions, called steps, that complete a task. You construct a workflow like you construct a function, but it's a special function that allows you to track its executions' progress, define roll-back logic, and configure other advanced features. Then, you execute the workflow from other customizations, such as in an endpoint. - -So, in this section, you'll learn how to create a workflow that creates a review. Later, you'll execute this workflow in an API route. - -Learn more about workflows in the [Workflows documentation](https://docs.medusajs.com/docs/learn/fundamentals/workflows/index.html.md). - -The workflow will have the following steps: - -- [useQueryGraphStep](https://docs.medusajs.com/references/helper-steps/useQueryGraphStep/index.html.md): Retrieve the product to confirm it exists. -- [createReviewStep](#createReviewStep): Create the review. - -The `useQueryGraphStep` step is provided by Medusa in its `@medusajs/medusa/core-flows` package. So, you only need to implement the `createReviewStep` step. - -### createReviewStep - -In the second step of the workflow, you create the review. To create a step, create the file `src/workflows/steps/create-review.ts` with the following content: - -```ts title="src/workflows/steps/create-review.ts" highlights={createReviewHighlights} -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { PRODUCT_REVIEW_MODULE } from "../../modules/product-review" -import ProductReviewModuleService from "../../modules/product-review/service" - -export type CreateReviewStepInput = { - title?: string - content: string - rating: number - product_id: string - customer_id?: string - first_name: string - last_name: string - status?: "pending" | "approved" | "rejected" -} - -export const createReviewStep = createStep( - "create-review", - async (input: CreateReviewStepInput, { container }) => { - const reviewModuleService: ProductReviewModuleService = container.resolve( - PRODUCT_REVIEW_MODULE - ) - - const review = await reviewModuleService.createReviews(input) - - return new StepResponse(review, review.id) - }, - async (reviewId, { container }) => { - if (!reviewId) { - return - } - - const reviewModuleService: ProductReviewModuleService = container.resolve( - PRODUCT_REVIEW_MODULE - ) - - await reviewModuleService.deleteReviews(reviewId) - } -) -``` - -You create a step with `createStep` from the Workflows SDK. It accepts two parameters: - -1. The step's unique name, which is `create-review`. -2. An async function that receives two parameters: - - The step's input, which is in this case an object with the review's properties. - - An object that has properties including the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md), which is a registry of Framework and commerce tools that you can access in the step. - -In the step function, you resolve the Review Module's service from the Medusa container using its `resolve` method, passing it the module's name as a parameter. - -Then, you create the review using the `createReviews` method. As you remember, the Review Module's service extends the `MedusaService` which generates data-management methods for you. - -A step function must return a `StepResponse` instance. The `StepResponse` constructor accepts two parameters: - -1. The step's output, which is the review created. -2. Data to pass to the step's compensation function. - -#### Compensation Function - -The compensation function undoes the actions performed in a step. Then, if an error occurs during the workflow's execution, the compensation functions of executed steps are called to roll back the changes. This mechanism ensures data consistency in your application, especially as you integrate external systems. - -The compensation function accepts two parameters: - -1. The data passed from the step in the second parameter of `StepResponse`, which in this case is the ID of the created review. -2. An object that has properties including the [Medusa container](https://docs.medusajs.com/docs/learn/fundamentals/medusa-container/index.html.md). - -In the compensation function, you resolve the Review Module's service from the Medusa container and call the `deleteReviews` method to delete the review created in the step. - -### Add createReviewWorkflow - -You can now create the workflow using the step provided by Medusa and your custom step. - -To create the workflow, create the file `src/workflows/create-review.ts` with the following content: - -```ts title="src/workflows/create-review.ts" -import { - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -import { createReviewStep } from "./steps/create-review" -import { useQueryGraphStep } from "@medusajs/medusa/core-flows" - -type CreateReviewInput = { - title?: string - content: string - rating: number - product_id: string - customer_id?: string - first_name: string - last_name: string - status?: "pending" | "approved" | "rejected" -} - -export const createReviewWorkflow = createWorkflow( - "create-review", - (input: CreateReviewInput) => { - // Check product exists - // @ts-ignore - useQueryGraphStep({ - entity: "product", - fields: ["id"], - filters: { - id: input.product_id, - }, - options: { - throwIfKeyNotFound: true, - }, - }) - - // Create the review - const review = createReviewStep(input) - - // @ts-ignore - return new WorkflowResponse({ - review, - }) - } -) -``` - -You create a workflow using `createWorkflow` from the Workflows SDK. It accepts the workflow's unique name as a first parameter. - -It accepts as a second parameter a constructor function, which is the workflow's implementation. The function can accept input, which in this case is an object of the review's details. - -In the workflow's constructor function, you: - -- use `useQueryGraphStep` to retrieve the product. By setting the `options.throwIfKeyNotFound` to `true`, the step throws an error if the product doesn't exist. -- Call the `createReviewStep` step to create the review. - -`useQueryGraphStep` uses [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md), which allows you to retrieve data across modules. For example, in the above snippet you're retrieving the cart's promotions, which are managed in the [Promotion Module](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/promotion/index.html.md), by passing `promotions.code` to the `fields` array. - -A workflow must return an instance of `WorkflowResponse`. The `WorkflowResponse` constructor accepts the workflow's output as a parameter, which is an object holding the created review in this case. - -In the next step, you'll learn how to execute this workflow in an API route. - -*** - -## Step 5: Create Review API Route - -Now that you have the logic to create a product review, you need to expose it so that frontend clients, such as a storefront, can use it. You do this by creating an [API route](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md). - -An API Route is an endpoint that exposes commerce features to external applications and clients, such as storefronts. You'll create an API route at the path `/store/reviews` that executes the workflow from the previous step. - -Learn more about API routes in [this documentation](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/index.html.md). - -### Implement API Route - -An API route is created in a `route.ts` file under a sub-directory of the `src/api` directory. The path of the API route is the file's path relative to `src/api`. - -So, to create an API route at the path `/store/reviews`, create the file `src/api/store/reviews/route.ts` with the following content: - -```ts title="src/api/store/reviews/route.ts" highlights={PostStoreReviewHighlights} -import type { - AuthenticatedMedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createReviewWorkflow } from "../../../workflows/create-review" - -import { z } from "zod" - -export const PostStoreReviewSchema = z.object({ - title: z.string().optional(), - content: z.string(), - rating: z.preprocess( - (val) => { - if (val && typeof val === "string") { - return parseInt(val) - } - return val - }, - z.number().min(1).max(5) - ), - product_id: z.string(), - first_name: z.string(), - last_name: z.string(), -}) - -type PostStoreReviewReq = z.infer - -export const POST = async ( - req: AuthenticatedMedusaRequest, - res: MedusaResponse -) => { - const input = req.validatedBody - - const { result } = await createReviewWorkflow(req.scope) - .run({ - input: { - ...input, - customer_id: req.auth_context?.actor_id, - }, - }) - - res.json(result) -} -``` - -You first define a [Zod](https://zod.dev/) schema for the request body of the API route. You'll later use this schema to enforce validation on the API route. - -Then, since you export a `POST` function, you're exposing a `POST` API route at the path `/store/reviews`. The route handler function accepts two parameters: - -1. A request object with details and context on the request, such as body parameters or authenticated customer details. -2. A response object to manipulate and send the response. - -`AuthenticatedMedusaRequest` accepts the request body's type as a type argument. - -In the route handler, you execute the `createReviewWorkflow` workflow by invoking it, passing it the Medusa container (which is stored in the `scope` property of a request object). Then, you call its `run` method, passing to the workflow the request body as input. - -### Apply Validation and Authentication Middlewares - -Now that you have the API route, you need to enforce validation of the request body, and require authentication to access the route. You can do this with a middleware. A middleware is a function executed when a request is sent to an API Route. It's executed before the route handler. - -Learn more about middleware in the [Middlewares documentation](https://docs.medusajs.com/docs/learn/fundamentals/api-routes/middlewares/index.html.md). - -Middlewares are created in the `src/api/middlewares.ts` file. So create the file `src/api/middlewares.ts` with the following content: - -```ts title="src/api/middlewares.ts" -import { - defineMiddlewares, - authenticate, - validateAndTransformBody, -} from "@medusajs/framework/http" -import { PostStoreReviewSchema } from "./store/reviews/route" - - -export default defineMiddlewares({ - routes: [ - { - method: ["POST"], - matcher: "/store/reviews", - middlewares: [ - authenticate("customer", ["session", "bearer"]), - validateAndTransformBody(PostStoreReviewSchema), - ], - }, - ], -}) -``` - -To export the middlewares, you use the `defineMiddlewares` function. It accepts an object having a `routes` property, whose value is an array of middleware route objects. Each middleware route object has the following properties: - -- `method`: The HTTP methods the middleware applies to, which is in this case `POST`. -- `matcher`: The path of the route the middleware applies to. -- `middlewares`: An array of middleware functions to apply to the route. In this case, you apply two middlewares: - - `authenticate`: ensures the request is authenticated as a customer with a session or bearer token. - - `validateAndTransformBody`: validates that the request body parameters match the Zod schema passed as a parameter. - -The create product review route is now ready for use. - -### Test the API Route - -To test out the API route, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open the Medusa Admin dashboard at `http://localhost:9000/app` and login using the credentials you set up earlier. - -#### Retrieve Publishable API Key - -All requests sent to routes starting with `/store` must have a publishable API key in their header. This ensures that the request is scoped to a specific sales channel of your storefront. - -To learn more about publishable API keys, refer to the [Publishable API Key documentation](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/commerce-modules/sales-channel/publishable-api-keys/index.html.md). - -To retrieve the publishable API key from the Medusa Admin, refer to [this user guide](https://docs.medusajs.com/user-guide/settings/developer/publishable-api-keys/index.html.md). - -#### Retrieve Customer Authentication Token - -As mentioned before, the API route you added requires the customer to be authenticated. So, you'll first create a customer, then retrieve their authentication token to use in the request. - -Before creating the customer, retrieve a registration token using the [Retrieve Registration JWT Token API route](https://docs.medusajs.com/api/store#auth_postactor_typeauth_provider_register): - -```bash -curl -X POST 'http://localhost:9000/auth/customer/emailpass/register' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "email": "customer@gmail.com", - "password": "supersecret" -}' -``` - -Make sure to replace the email and password with the credentials you want. - -Then, register the customer using the [Create Customer API route](https://docs.medusajs.com/api/store#customers_postcustomers): - -```bash -curl -X POST 'http://localhost:9000/store/customers' \ --H 'Authorization: Bearer {token}' \ --H 'Content-Type: application/json' \ --H 'x-publishable-api-key: {your_publishable_api_key}' \ ---data-raw '{ - "email": "customer@gmail.com" -}' -``` - -Make sure to replace: - -- `{token}` with the registration token you received from the previous request. -- `{your_publishable_api_key}` with the publishable API key you retrieved from the Medusa Admin. - -Also, if you changed the email in the first request, make sure to change it here as well. - -The customer is now registered. Lastly, you need to retrieve its authenticated token by sending a request to the [Authenticate Customer API route](https://docs.medusajs.com/api/store#auth_postactor_typeauth_provider): - -```bash -curl -X POST 'http://localhost:9000/auth/customer/emailpass' \ --H 'Content-Type: application/json' \ ---data-raw '{ - "email": "customer@gmail.com", - "password": "supersecret" -}' -``` - -Copy the returned token to use it in the next requests. - -#### Retrieve Product ID - -Before creating a review, you need the ID of a product. You can either copy one from the Medusa Admin, or send the following request: - -```bash -curl 'http://localhost:9000/store/products' \ --H 'x-publishable-api-key: {your_publishable_api_key}' -``` - -Make sure to replace `{your_publishable_api_key}` with the publishable API key you retrieved from the Medusa Admin. - -#### Create a Review - -You can now create a review for the product you chose. To do that, send the following request: - -```bash -curl --location 'http://localhost:9000/store/reviews' \ ---header 'x-publishable-api-key: {your_publishable_api_key}' \ ---header 'Content-Type: application/json' \ --H 'Authorization: Bearer {token}' \ ---data '{ - "product_id": "{product_id}", - "title": "Really good", - "content": "The material is nice", - "rating": 5, - "first_name": "John", - "last_name": "Smith" -}' -``` - -Make sure to replace: - -- `{your_publishable_api_key}` with the publishable API key you retrieved from the Medusa Admin. -- `{token}` with the authentication token you retrieved from the previous request. -- `{product_id}` with the ID of the product you chose. - -If the request is successful, you'll receive a response with the created review. Notice that the review is in the `pending` status. In the upcoming steps, you'll allow admin users to approve or reject reviews. - -*** - -## Step 6: List Reviews Admin API Route - -In this step, you'll create an API route that lists the reviews of a product. You'll use this route in the Medusa Admin customizations to allow admin users to view and manage product reviews. - -### Create API Route - -To create the API route that retrieves a paginated list of reviews, create the file `src/api/admin/reviews/route.ts` with the following content: - -```ts title="src/api/admin/reviews/route.ts" highlights={GetAdminReviewsHighlights} -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { createFindParams } from "@medusajs/medusa/api/utils/validators" - -export const GetAdminReviewsSchema = createFindParams() - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const query = req.scope.resolve("query") - - const { - data: reviews, - metadata: { count, take, skip } = { - count: 0, - take: 20, - skip: 0, - }, - } = await query.graph({ - entity: "review", - ...req.queryConfig, - }) - - res.json({ - reviews, - count, - limit: take, - offset: skip, - }) -} -``` - -You first define a `GetAdminReviewsSchema` schema that will allow clients to pass the following query parameters: - -- `limit`: The number of reviews to retrieve. -- `offset`: The number of items to skip before retrieving the reviews. -- `order`: The fields to sort the reviews by in ascending or descending order. - -Then, you export a `GET` function, which exposes a `GET` API Route at the path `/admin/reviews`. In the route handler you resolve [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) from the Medusa container, which allows you to retrieve data across modules. - -Next, you retrieve all reviews using Query. Notice that you pass in `query.graph` the `req.queryConfig` object. This object holds the fields to retrieve and the pagination configurations. - -Finally, you return the reviews with pagination fields. - -### Apply Query Configurations Middleware - -After adding the API route, you need to add a middleware that validates the query parameters passed to the request, and sets the default Query configurations. - -Routes starting with `/admin` are protected by default. So, you don't need to add the `authenticate` middleware to enforce authentication. - -In `src/api/middlewares.ts`, add a new middleware: - -```ts title="src/api/middlewares.ts" -// other imports... -import { - validateAndTransformQuery, -} from "@medusajs/framework/http" -import { GetAdminReviewsSchema } from "./admin/reviews/route" - -export default defineMiddlewares({ - routes: [ - { - matcher: "/admin/reviews", - method: ["GET"], - middlewares: [ - validateAndTransformQuery(GetAdminReviewsSchema, { - isList: true, - defaults: [ - "id", - "title", - "content", - "rating", - "product_id", - "customer_id", - "status", - "created_at", - "updated_at", - "product.*", - ], - }), - ], - }, - ], -}) -``` - -You use the `validateAndTransformQuery` middleware to enforce validation on the query parameters passed to the request. The middleware accepts two parameters: - -- The Zod schema to validate the query parameters, which is the `GetAdminReviewsSchema` schema you defined earlier. -- The Query configurations, which is an object with the following properties: - - `isList`: A boolean that indicates whether the query is a list query. - - `defaults`: An array of fields to retrieve by default. - -You'll test the API route as you customize the Medusa Admin in the next step. - -You pass `product.*` in the fields to retrieve, allowing you to retrieve the product associated with each review. This is possible because you defined a link between the `Review` data model and the `Product` data model in a previous step. - -*** - -## Step 7: Add Reviews UI Route - -Now that you have an API route that retrieves reviews, you'll customize the Medusa Admin to add a new "Reviews" page by creating a [UI Route](https://docs.medusajs.com/docs/learn/fundamentals/admin/ui-routes/index.html.md). - -A UI route is a React component that specifies the content to be shown in a new page in the Medusa Admin dashboard. You'll create a UI route to display the list of reviews in the Medusa Admin. - -Learn more about UI routes in the [UI Routes documentation](https://docs.medusajs.com/docs/learn/fundamentals/admin/ui-routes/index.html.md). - -### Configure JS SDK - -Medusa provides a [JS SDK](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/js-sdk/index.html.md) that you can use to send requests to the Medusa server from any client application, including your Medusa Admin customizations. - -The JS SDK is installed by default in your Medusa application. To configure it, create the file `src/admin/lib/sdk.ts` with the following content: - -```ts title="src/admin/lib/sdk.ts" -import Medusa from "@medusajs/js-sdk" - -export const sdk = new Medusa({ - baseUrl: "http://localhost:9000", - debug: process.env.NODE_ENV === "development", - auth: { - type: "session", - }, -}) -``` - -You create an instance of the JS SDK using the `Medusa` class from the JS SDK. You pass it an object having the following properties: - -- `baseUrl`: The base URL of the Medusa server. -- `debug`: A boolean indicating whether to log debug information into the console. -- `auth`: An object specifying the authentication type. When using the JS SDK for admin customizations, you use the `session` authentication type. - -### Create UI Route - -You'll now create the UI Route that lists the reviews. To do this, create the file `src/admin/routes/reviews/page.tsx` with the following content: - -```tsx title="src/admin/routes/reviews/page.tsx" highlights={listUIRoutesHighlight1} collapsibleLines="1-18" expandButtonLabel="Show Imports" -import { defineRouteConfig } from "@medusajs/admin-sdk" -import { ChatBubbleLeftRight } from "@medusajs/icons" -import { - createDataTableColumnHelper, - Container, - DataTable, - useDataTable, - Heading, - StatusBadge, - Toaster, - DataTablePaginationState, -} from "@medusajs/ui" -import { useQuery } from "@tanstack/react-query" -import { useMemo, useState } from "react" -import { sdk } from "../../lib/sdk" -import { HttpTypes } from "@medusajs/framework/types" -import { Link } from "react-router-dom" - -type Review = { - id: string - title?: string - content: string - rating: number - product_id: string - customer_id?: string - status: "pending" | "approved" | "rejected" - created_at: Date - updated_at: Date - product?: HttpTypes.AdminProduct - customer?: HttpTypes.AdminCustomer -} - - -const columnHelper = createDataTableColumnHelper() - -const columns = [ - columnHelper.accessor("id", { - header: "ID", - }), - columnHelper.accessor("title", { - header: "Title", - }), - columnHelper.accessor("rating", { - header: "Rating", - }), - columnHelper.accessor("content", { - header: "Content", - }), - columnHelper.accessor("status", { - header: "Status", - cell: ({ row }) => { - const color = row.original.status === "approved" ? - "green" : row.original.status === "rejected" - ? "red" : "grey" - return ( - - {row.original.status.charAt(0).toUpperCase() + row.original.status.slice(1)} - - ) - }, - }), - columnHelper.accessor("product", { - header: "Product", - cell: ({ row }) => { - return ( - - {row.original.product?.title} - - ) - }, - }), -] - -// TODO add component -``` - -Before defining the component, you define a `Review` type, then define the columns of the table you'll show on the page. - -To display the table, you'll use the [DataTable](https://docs.medusajs.com/ui/components/data-table/index.html.md) component from Medusa UI. To define the columns of the table, you use the `createDataTableColumnHelper` function from Medusa UI, which returns a `columnHelper` object. You then use the `columnHelper` object to define the table's columns. - -Next, you'll add the component that renders the content of the page. Replace the `TODO` with the following: - -```tsx title="src/admin/routes/reviews/page.tsx" highlights={reviewsPageHighlights} -const limit = 15 - -const ReviewsPage = () => { - const [pagination, setPagination] = useState({ - pageSize: limit, - pageIndex: 0, - }) - - const offset = useMemo(() => { - return pagination.pageIndex * limit - }, [pagination]) - - const { data, isLoading, refetch } = useQuery<{ - reviews: Review[] - count: number - limit: number - offset: number - }>({ - queryKey: ["reviews", offset, limit], - queryFn: () => sdk.client.fetch("/admin/reviews", { - query: { - offset: pagination.pageIndex * pagination.pageSize, - limit: pagination.pageSize, - order: "-created_at", - }, - }), - }) - - const table = useDataTable({ - columns, - data: data?.reviews || [], - rowCount: data?.count || 0, - isLoading, - pagination: { - state: pagination, - onPaginationChange: setPagination, - }, - getRowId: (row) => row.id, - }) - - return ( - - - - - Reviews - - - - - - - - ) -} - -export const config = defineRouteConfig({ - label: "Reviews", - icon: ChatBubbleLeftRight, -}) - -export default ReviewsPage -``` - -You create a `ReviewPage` component, which holds the UI route's content. In the component, you: - -- Define state variables to configure pagination. -- Use the `useQuery` hook from `@tanstack/react-query` to fetch the reviews from the API route. In the query function, you use the JS SDK to send a request to the `/admin/reviews` API route. The JS SDK has a `client.fetch` method that has a similar signature to JavaScript's [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API). You can use it to send requests to custom routes. -- Use the `useDataTable` hook from Medusa UI to create a DataTable instance. You pass the columns, data, and pagination configurations to the hook. -- Render the DataTable component, passing the DataTable instance to the `instance` prop. You also render the DataTable's toolbar, table, and pagination components. - -The file also exports a configuration object created with `defineRouteConfig`. You export this object to tell Medusa that you want to add the new route to the Medusa Admin's sidebar. You specify the sidebar's item and title. - -### Test the UI Route - -To test out the UI route, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open the Medusa Admin dashboard at `http://localhost:9000/app` and login using the credentials you set up earlier. - -You'll find a new sidebar item `Review`. Click on it to view the list of reviews. In the upcoming steps, you'll add functionality to approve or reject reviews. - -![Reviews page showing list of reviews](https://res.cloudinary.com/dza7lstvk/image/upload/v1741935325/Medusa%20Resources/Screenshot_2025-03-14_at_8.54.14_AM_tfhnyu.png) - -*** - -## Step 8: Change Review Status API Route - -Next, you want to allow the admin user to approve or reject reviews. To do this, you'll create a workflow that updates a review's status, then use it in an API route that exposes the functionality. - -### Update Review Step - -The workflow to update a review's status will have on step that updates the review. To create the step, create the file `src/workflows/steps/update-review.ts` with the following content: - -```ts title="src/workflows/steps/update-review.ts" highlights={updateReviewStepHighlights} -import { - createStep, - StepResponse, -} from "@medusajs/framework/workflows-sdk" -import { PRODUCT_REVIEW_MODULE } from "../../modules/product-review" -import ProductReviewModuleService from "../../modules/product-review/service" - -export type UpdateReviewsStepInput = { - id: string - status: "pending" | "approved" | "rejected" -}[] - -export const updateReviewsStep = createStep( - "update-review-step", - async (input: UpdateReviewsStepInput, { container }) => { - const reviewModuleService: ProductReviewModuleService = container.resolve( - PRODUCT_REVIEW_MODULE - ) - - // Get original review before update - const originalReviews = await reviewModuleService.listReviews({ - id: input.map((review) => review.id), - }) - - const reviews = await reviewModuleService.updateReviews(input) - - return new StepResponse(reviews, originalReviews) - }, - async (originalData, { container }) => { - if (!originalData) { - return - } - - const reviewModuleService: ProductReviewModuleService = container.resolve( - PRODUCT_REVIEW_MODULE - ) - - // Restore original review status - await reviewModuleService.updateReviews(originalData) - } -) -``` - -This step receives an array of objects, each with the ID of the review to update and its new status. - -In the step function, you first retrieve the original reviews before the update. Then, you update the reviews using the `updateReviews` method of the Review Module's service. - -After that, you return the updated reviews, and you pass the original reviews to the compensation function. - -In the compensation function, you restore the original reviews' status if an error occurs. - -### Update Review Workflow - -You can now create the workflow that uses the above step to update the review. To create the workflow, create the file `src/workflows/update-review.ts` with the following content: - -```ts title="src/workflows/update-review.ts" -import { - createWorkflow, - WorkflowResponse, -} from "@medusajs/framework/workflows-sdk" -import { updateReviewsStep } from "./steps/update-review" - -export type UpdateReviewInput = { - id: string - status: "pending" | "approved" | "rejected" -}[] - -export const updateReviewWorkflow = createWorkflow( - "update-review", - (input: UpdateReviewInput) => { - const reviews = updateReviewsStep(input) - - return new WorkflowResponse({ - reviews, - }) - } -) -``` - -The workflow receives an array of objects, each with the ID of the review to update and its new status. It uses the `updateReviewsStep` to update the reviews, then returns the updated reviews. - -### Create API Route - -Next, you'll create the API route that exposes the workflow's functionality. Create the file `src/api/admin/reviews/status/route.ts` with the following content: - -```ts title="src/api/admin/reviews/status/route.ts" highlights={PostAdminUpdateReviewsStatusHighlights} -import type { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { updateReviewWorkflow } from "../../../../workflows/update-review" -import { z } from "zod" - -export const PostAdminUpdateReviewsStatusSchema = z.object({ - ids: z.array(z.string()), - status: z.enum(["pending", "approved", "rejected"]), -}) - -export async function POST( - req: MedusaRequest>, - res: MedusaResponse -) { - const { ids, status } = req.validatedBody - - const { result } = await updateReviewWorkflow(req.scope).run({ - input: ids.map((id) => ({ - id, - status, - })), - }) - - res.json(result) -} -``` - -You first define a Zod schema for the request body of the API route. You'll later use this schema to enforce validation on the API route. The request body must include the following parameters: - -- `ids`: An array of review IDs to update. -- `status`: The new status to set for the reviews. - -Then, since you export a `POST` function, you're exposing a `POST` API route at the path `/admin/reviews/status`. In the route handler you execute the `updateReviewWorkflow` workflow, passing it the data from the request body. - -Finally, you return the updated reviews. - -### Apply Validation Middlewares - -The last step is to add the validation middleware that enforces validation the body parameters of requests sent to the API route. - -In `src/api/middlewares.ts`, add a new middleware: - -```ts title="src/api/middlewares.ts" -// other imports... -import { PostAdminUpdateReviewsStatusSchema } from "./admin/reviews/status/route" - -export default defineMiddlewares({ - routes: [ - // ... - { - matcher: "/admin/reviews/status", - method: ["POST"], - middlewares: [ - validateAndTransformBody(PostAdminUpdateReviewsStatusSchema), - ], - }, - ], -}) -``` - -You use the `validateAndTransformBody` middleware to enforce validation on an incoming request's body parameters. You pass the Zod schema you defined in the API route's file to the middleware. - -In the next step, you'll customize the UI route you added earlier to allow the admin user to approve or reject reviews. - -*** - -## Step 9: Approve and Reject Reviews in UI Route - -You'll now customize the UI route you added earlier to allow the admin user to approve or reject reviews. You'll add a checkbox column to the table that allows the admin user to select multiple reviews, then choose to approve or reject them. - -The `DataTable` component from Medusa UI supports a command bar that is triggered by a select (or checkbox) column in the table. - -Start by adding the necessary imports at the top of `src/admin/routes/reviews/page.tsx`: - -```tsx title="src/admin/routes/reviews/page.tsx" -import { - createDataTableCommandHelper, - DataTableRowSelectionState, -} from "@medusajs/ui" -``` - -Then, in the `columns` array, add a new select column as the first item in the array: - -```tsx title="src/admin/routes/reviews/page.tsx" -const columns = [ - columnHelper.select(), - // ... -] -``` - -The select column adds a checkbox to each row in the table, allowing the admin user to select multiple reviews. - -Next, you need to add the commands that allow the admin user to approve or reject the selected reviews. So, add the following after the `columns` array: - -```tsx title="src/admin/routes/reviews/page.tsx" highlights={commandHelperHighlights} -const commandHelper = createDataTableCommandHelper() - -const useCommands = (refetch: () => void) => { - return [ - commandHelper.command({ - label: "Approve", - shortcut: "A", - action: async (selection) => { - const reviewsToApproveIds = Object.keys(selection) - - sdk.client.fetch("/admin/reviews/status", { - method: "POST", - body: { - ids: reviewsToApproveIds, - status: "approved", - }, - }).then(() => { - toast.success("Reviews approved") - refetch() - }).catch(() => { - toast.error("Failed to approve reviews") - }) - }, - }), - commandHelper.command({ - label: "Reject", - shortcut: "R", - action: async (selection) => { - const reviewsToRejectIds = Object.keys(selection) - - sdk.client.fetch("/admin/reviews/status", { - method: "POST", - body: { - ids: reviewsToRejectIds, - status: "rejected", - }, - }).then(() => { - toast.success("Reviews rejected") - refetch() - }).catch(() => { - toast.error("Failed to reject reviews") - }) - }, - }), - ] -} -``` - -You first initialize the command helper using the `createDataTableCommandHelper` function from Medusa UI. Then, you create a custom hook `useCommands` that returns an array of commands created with the command helper. - -You add `Approve` and `Reject` commands, and both of them send a request to the `/admin/reviews/status` API route to update the reviews' status, but each with a different status in the request body. - -Next, add the following state variable in the `ReviewsPage` component: - -```tsx title="src/admin/routes/reviews/page.tsx" -const [rowSelection, setRowSelection] = useState({}) -``` - -This state variable will hold the selected reviews in the table. - -Then, call the `useCommands` hook and pass new properties to the `useDataTable` hook: - -```tsx title="src/admin/routes/reviews/page.tsx" -const commands = useCommands(refetch) - -const table = useDataTable({ - // ... - commands, - rowSelection: { - state: rowSelection, - onRowSelectionChange: setRowSelection, - }, -}) -``` - -You call the `useCommands` hook and pass it the `refetch` function (returned by `useQuery`). The `refetch` function allows you to refetch the reviews after approving or rejecting them to ensure their status in the table is updated. - -Then, you pass the commands and row selection configurations (from the state variables you added) to the `useDataTable` hook. - -Finally, in the `return` statement, add the command bar after the pagination component: - -```tsx title="src/admin/routes/reviews/page.tsx" - `${count} selected`} /> -``` - -This command bar will show the actions to perform on the selected reviews. - -### Test the UI Route - -To test out the UI route, start the Medusa application: - -```bash npm2yarn -npm run dev -``` - -Then, open the Medusa Admin dashboard and go to the Reviews page. You'll see a new column with checkboxes that allow you to select multiple reviews. - -If you try selecting multiple reviews, you'll see a command bar at the bottom center of the page that allows you to approve or reject the selected reviews. - -If you choose to approve or reject the reviews, the status of the selected reviews will change, and the table will update to reflect the new status. - -![Checkboxes are now shown next to the items in the table, and when you click on them the command bar shows at the bottom of the page with Approve and Reject commands](https://res.cloudinary.com/dza7lstvk/image/upload/v1741937101/Medusa%20Resources/Screenshot_2025-03-14_at_9.24.29_AM_y9vhac.png) - -*** - -## Step 10: List Reviews Store API Route - -In the upcoming steps, you'll start customizing the storefront to show the reviews of a product and allow logged-in customers to add reviews. - -Before doing that, you need to add an API route that retrieves the list of approved reviews. You'll later show these in the storefront. - -### Add Average Rating Method in Service - -On the product's page, you want to display the average rating of a product. To do this, you'll add a method that retrieves the average rating of a product's reviews in the Review Module's service. - -In `src/modules/product-review/service.ts`, add the following methods to the `ProductReviewModuleService` class: - -```ts title="src/modules/product-review/service.ts" -import { InjectManager, MedusaService, MedusaContext } from "@medusajs/framework/utils" -import Review from "./models/review" -import { Context } from "@medusajs/framework/types" -import { EntityManager } from "@mikro-orm/knex" - -class ProductReviewModuleService extends MedusaService({ - Review, -}) { - @InjectManager() - async getAverageRating( - productId: string, - @MedusaContext() sharedContext?: Context - ): Promise { - const result = await sharedContext?.manager?.execute( - `SELECT AVG(rating) as average - FROM review - WHERE product_id = '${productId}' AND status = 'approved'` - ) - - return parseFloat(parseFloat(result?.[0]?.average ?? 0).toFixed(2)) - } -} - -export default ProductReviewModuleService -``` - -To run queries on the database in a service's method, you need to: - -- Add the `InjectManager` decorator to the method. -- Pass as the last parameter a context parameter that has the `MedusaContext` decorator. - -By doing the above, Medusa injects the method with a context parameter that has a `manger` property whose value is a [forked entity manager](https://mikro-orm.io/docs/identity-map#forking-entity-manager). - -Then, you run a raw SQL query to calculate the average rating of the reviews for a product with the given ID. You also filter the reviews by the status `approved`. - -You'll use this method next in the API route. - -### Create API Route - -To create the API route that lists the reviews of a product with average rating, create the file `src/api/store/products/[id]/reviews/route.ts` with the following content: - -```ts title="src/api/store/products/[id]/reviews/route.ts" highlights={GetStoreReviewsHighlights} collapsibleLines="1-9" expandButtonLabel="Show Imports" -import { - MedusaRequest, - MedusaResponse, -} from "@medusajs/framework/http" -import { ContainerRegistrationKeys } from "@medusajs/framework/utils" -import { PRODUCT_REVIEW_MODULE } from "../../../../../modules/product-review" -import ProductReviewModuleService from "../../../../../modules/product-review/service" -import { createFindParams } from "@medusajs/medusa/api/utils/validators" - -export const GetStoreReviewsSchema = createFindParams() - -export const GET = async ( - req: MedusaRequest, - res: MedusaResponse -) => { - const { id } = req.params - - const query = req.scope.resolve(ContainerRegistrationKeys.QUERY) - const reviewModuleService: ProductReviewModuleService = req.scope.resolve(PRODUCT_REVIEW_MODULE) - - // Get reviews for product - const { data: reviews, metadata: { - count, - take, - skip, - } = { count: 0, take: 10, skip: 0 } } = await query.graph({ - entity: "review", - filters: { - product_id: id, - // @ts-ignore - status: "approved", - }, - ...req.queryConfig, - }) - - res.json({ - reviews, - count, - limit: take, - offset: skip, - average_rating: await reviewModuleService.getAverageRating(id), - }) -} -``` - -You first define a `GetStoreReviewsSchema` schema that will allow clients to pass the following query parameters: - -- `limit`: The number of reviews to retrieve. -- `offset`: The number of items to skip before retrieving the reviews. -- `order`: The fields to sort the reviews by in ascending or descending order. - -Then, you export a `GET` function, and that exposes a `GET` API Route at the path `/store/products/[id]/reviews`. In the route handler you resolve [Query](https://docs.medusajs.com/docs/learn/fundamentals/module-links/query/index.html.md) from the Medusa container, which allows you to retrieve data across modules. - -Next, you retrieve the approved reviews of a product using Query. Notice that you pass in `query.graph` the `req.queryConfig` object. This object holds the fields to retrieve and the pagination configurations. You'll configure this object in a bit. - -Finally, you return the reviews with pagination fields and the average rating of the product. - -### Apply Query Configurations Middleware - -The last step is to add a middleware that validates the query parameters passed to the request, and sets the default Query configuations. - -In `src/api/middlewares.ts`, add a new middleware: - -```ts title="src/api/middlewares.ts" -// other imports -import { - validateAndTransformQuery, -} from "@medusajs/framework/http" -import { GetStoreReviewsSchema } from "./store/products/[id]/reviews/route" - -export default defineMiddlewares({ - routes: [ - // ... - { - matcher: "/store/products/:id/reviews", - methods: ["GET"], - middlewares: [ - validateAndTransformQuery(GetStoreReviewsSchema, { - isList: true, - defaults: [ - "id", - "rating", - "title", - "first_name", - "last_name", - "content", - "created_at", - ], - }), - ], - }, - ], -}) -``` - -You apply the `validateAndTransformQuery` middleware to the `GET` API route at the path `/store/products/:id/reviews`. Similar to before, you pass to the middleware: - -- The validation schema of the request's query parameters, which is the `GetStoreReviewsSchema` you created earlier. -- An object of Query configurations. It has the following properties: - - `isList`: A boolean indicating whether the route returns a list of items. This enables the pagination configurations. - - `defaults`: An array of fields to retrieve by default. - -By adding this middleware, you allow clients to pass pagination query parameters to the API route, and set default fields to retrieve. - -You'll use this API route next as you customize the Next.js Starter Storefront. - -*** - -## Step 11: Customize Next.js Starter Storefront - -In this step, you'll customize the Next.js Starter Storefront to: - -- Display a product's review and average rating on its page. -- Allow authenticated customers to submit a review for a product. - -### Add Product Review Types - -Before implementing the customizations, you'll add a type definition for the product review which you'll re-use in the storefront. - -In `src/types/global.ts`, add the following types: - -```ts title="src/types/global.ts" badgeLabel="Storefront" badgeColor="blue" -export type StoreProductReview = { - id: string - title: string - rating: number - content: string - first_name: string - last_name: string -} -``` - -You define the type of a product review object and the properties it has. - -### Add Functions to Fetch and Submit Reviews - -Next, you'll add two functions that fetch and submit reviews using the API routes you created earlier. To send requests to the API routes, you can use Medusa's [JS SDK](https://docs.medusajs.com/Users/shahednasser/medusa/www/apps/resources/app/js-sdk/index.html.md). - -In `src/lib/data/products.ts`, add the following functions: - -```ts title="src/lib/data/products.ts" badgeLabel="Storefront" badgeColor="blue" -import { StoreProductReview } from "../../types/global" - -// ... - -export const getProductReviews = async ({ - productId, - limit = 10, - offset = 0, -}: { - productId: string - limit?: number - offset?: number -}) => { - const headers = { - ...(await getAuthHeaders()), - } - - const next = { - ...(await getCacheOptions(`product-reviews-${productId}`)), - } - - return sdk.client.fetch<{ - reviews: StoreProductReview[] - average_rating: number - limit: number - offset: number - count: number - }>(`/store/products/${productId}/reviews`, { - headers, - query: { - limit, - offset, - order: "-created_at", - }, - next, - cache: "force-cache", - }) -} - -export const addProductReview = async (input: { - title?: string - content: string - first_name: string - last_name: string - rating: number, - product_id: string -}) => { - const headers = { - ...(await getAuthHeaders()), - } - - return sdk.client.fetch(`/store/reviews`, { - method: "POST", - headers, - body: input, - next: { - ...(await getCacheOptions(`product-reviews-${input.product_id}`)), - }, - cache: "no-store", - }) -} -``` - -You define two functions: - -- `getProductReviews`: Fetches the reviews of a product with the given ID. It accepts an object with the product ID, and optional limit and offset parameters, allowing you to paginate the reviews. -- `addProductReview`: Submits a review for a product. It accepts an object with the review's details. - -To send requests to your custom API routes, you use the JS SDK's `client.fetch` method. - -### Add Product Review Form - -You'll now create a component that shows the product review form for authenticated customers. Afterwards, you'll display this component on the product's page. - -To create the form component, create the file `src/modules/products/components/product-reviews/form.tsx` with the following content: - -```tsx title="src/modules/products/components/product-reviews/form.tsx" badgeLabel="Storefront" badgeColor="blue" -"use client" - -import { useState } from "react" - -import { useEffect } from "react" -import { retrieveCustomer } from "../../../../lib/data/customer" -import { HttpTypes } from "@medusajs/types" -import { Button, Input, Label, Textarea, toast, Toaster } from "@medusajs/ui" -import { Star, StarSolid } from "@medusajs/icons" -import { addProductReview } from "../../../../lib/data/products" - -type ProductReviewsFormProps = { - productId: string -} - -export default function ProductReviewsForm({ productId }: ProductReviewsFormProps) { - const [customer, setCustomer] = useState(null) - const [isLoading, setIsLoading] = useState(false) - const [showForm, setShowForm] = useState(false) - const [title, setTitle] = useState("") - const [content, setContent] = useState("") - const [rating, setRating] = useState(0) - - useEffect(() => { - if (customer) { - return - } - - retrieveCustomer().then(setCustomer) - }, []) - - if (!customer) { - return <> - } - - const handleSubmit = async (e: React.FormEvent) => { - if (!content || !rating) { - toast.error("Error", { - description: "Please fill in required fields.", - }) - return - } - - e.preventDefault() - setIsLoading(true) - addProductReview({ - title, - content, - rating, - first_name: customer.first_name || "", - last_name: customer.last_name || "", - product_id: productId, - }).then(() => { - setShowForm(false) - setTitle("") - setContent("") - setRating(0) - toast.success("Success", { - description: "Your review has been submitted and is awaiting approval.", - }) - }).catch(() => { - toast.error("Error", { - description: "An error occurred while submitting your review. Please try again later.", - }) - }).finally(() => { - setIsLoading(false) - }) - } - - // TODO render form -} -``` - -You create a `ProductReviewsForm` component that accepts the product's ID as a prop. In the component, you: - -- Fetch the authenticated customer's details. If the customer is not authenticated, you return an empty fragment. -- Implement a `handleSubmit` function that submits the review when the form is submitted. - -Next, you'll add a return statement that shows the form when the customer is authenticated. Replace the `TODO` with the following: - -```tsx title="src/modules/products/components/product-reviews/form.tsx" badgeLabel="Storefront" badgeColor="blue" -return ( -
- {!showForm && ( -
- -
- )} - {showForm && ( -
-
- - Add a review - - -
-
- - setTitle(e.target.value)} placeholder="Title" /> -
-
- -