medusa-store/www/apps/resources/app/commerce-modules/payment/page.mdx

import { CodeTabs, CodeTab, ChildDocs } from "docs-ui"

export const metadata = {
  title: `Payment Module`,
}

# {metadata.title}

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 payment related features available out-of-the-box through the Payment Module. A [module](!docs!/learn/fundamentals/modules) 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.

<Note>

Learn more about why modules are isolated in [this documentation](!docs!/learn/fundamentals/modules/isolation).

</Note>

## Payment Features

- [Authorize, Capture, and Refund Payments](./payment/page.mdx): Authorize, capture, and refund payments for a single resource.
- [Payment Collection Management](./payment-collection/page.mdx): Store and manage all payments of a single resources, such as a cart, in payment collections.
- [Integrate Third-Party Payment Providers](./payment-provider/page.mdx): Use payment providers like [Stripe](./payment-provider/stripe/page.mdx) to handle and process payments, or integrate custom payment providers.
- [Handle Webhook Events](./webhook-events/page.mdx): 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](!docs!/learn/fundamentals/workflows), 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:

export const highlights = [
  ["12", "Modules.PAYMENT", "Resolve the module in a step."]
]

```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({
      region_id: "reg_123",
      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:

<CodeTabs group="resource-types">
  <CodeTab label="API Route" value="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)
}
```

  </CodeTab>
  <CodeTab label="Subscriber" value="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",
}
```

  </CodeTab>
  <CodeTab label="Scheduled Job" value="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 * * *`,
}
```

  </CodeTab>
</CodeTabs>

Learn more about workflows in [this documentation](!docs!/learn/fundamentals/workflows).

---

## Configure Payment Module

The Payment Module accepts options for further configurations. Refer to [this documentation](./module-options/page.mdx) 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.

<ChildDocs showItems={["Providers"]} hideTitle />

---

<CommerceModuleSections name="Payment" />