## What
Allow `medusa-oas` CLI to generate API client code from an OAS json file.
## Why
Manually maintaining API clients is time consuming and error prone. We wish to automate the process by using code generation strategies.
We also wish to eliminate direct import from `@medusajs/medusa` in clients which can lead to unwanted side effects like importing unnecessary dependencies.
## How
Fork and customize an OAS code generator library that is TypeScript friendly.
Attempt to match the interface and signature of our current client packages: `@medusajs/medusa-js`, `medusa-react`
Add a new `client` command to the `medusa-oas` CLI as the main interface to interact with the code generation tooling.
## Test
### Prerequisites
* From the root of the monorepo:
* `yarn install`
* `yarn build`
### Case - all in one build
* From the root of the monorepo:
* Run `yarn medusa-oas oas --out-dir ~/tmp/oas --type store`
* Run `yarn medusa-oas client --src-file ~/tmp/oas/store.oas.json --out-dir ~/tmp/client-store --type store`
* Expect `~/tmp/client-store` to contain the following files and directories:
```
core/
hooks/
models/
services/
index.ts
MedusaStore.ts
useMedusaStore.tsx
```
### Case - types only
* From the root of the monorepo:
* Run `yarn medusa-oas oas --out-dir ~/tmp/oas --type store`
* Run `yarn medusa-oas client --src-file ~/tmp/oas/store.oas.json --out-dir ~/tmp/client-types --type store --component types`
* Expect `~/tmp/client-types` to contain the following files and directories:
```
models/
index.ts
```
### Case - client only
* From the root of the monorepo:
* Run `yarn medusa-oas oas --out-dir ~/tmp/oas --type store`
* Run `yarn medusa-oas client --src-file ~/tmp/oas/store.oas.json --out-dir ~/tmp/client-only --type store --component client --types-package @medusajs/client-types`
* Expect `~/tmp/client-only` to contain the following files and directories:
```
core/
services/
index.ts
MedusaStore.ts
```
## What
Introduce a CLI for extracting OAS from the core `medusa` package.
## Why
We need to decouple OAS tooling from documentation tooling in order to allow packages and external systems to leverage our OAS has a dependency.
## How
Introduce a new OAS workspace within packages in order to organize current and future OAS related package. Only 1 OAS package for now.
Introduce a new CLI only package to act as the main gateway for all upcoming OAS tooling. Only 1 command for now.
Update documentation tooling pertaining to OAS to use the CLI instead.
## Test
### Prerequisite
From the monorepo root:
* `yarn install`
* `yarn build`
### Documentation
#### Case - validation only - success
* Run `yarn openapi:generate --dry-run`
* Expect console output `🟢 Valid OAS` but no mention of `🔵 Exported OAS`
#### Case - validation only - invalid
* Introduce a bug by renaming `@schema Cart` to `@schema Kart` in [models/cart.ts](https://github.com/medusajs/medusa/blob/0adb0d9ff96087613b7a634cbc97a7e301b01121/packages/medusa/src/models/cart.ts#L2)
* Run `yarn build` to update `@medusajs/medusa` package with the bug.
* Run `yarn openapi:generate --dry-run`
* Expect console output `🔴 Invalid OAS` with a stack trace of the issue.
#### Case - docs generation
* Run `yarn openapi:generate`
* Expect `docs/api/` directory to contain:
* `admin.oas.json` (raw OAS)
* `store.oas.json` (raw OAS)
* `admin.oas.yaml` (sanitized OAS)
* `store.oas.yaml` (sanitized OAS)
* `admin/` (updated redocly split output)
* `store/` (updated redocly split output)
### CLI
#### Case - crawl additional paths
* From a local medusa server (`medusa-starter-default`), add an `index.ts` file in `src/models/`
* In the `index.ts`, add dummy OAS JSDoc like `/** @schema Foobar */`
* From the root of the monorepo, run `yarn medusa-oas --type store --paths path-to-medusa-server/src`
* Expect a `store.oas.json` to be created at the root of the monorepo.
* The `store.oas.json` should contain an additional `Foobar` entry in `components.schemas`.
Patrick
Oliver Windall Juhl