That same information from the models that is included in OpenAPI is what can be used to **generate the client code**.

### Hey API { #hey-api }

Once we have a FastAPI app with the models, we can use Hey API to generate a TypeScript client. The fastest way to do that is via npx.

```sh
npx @hey-api/openapi-ts -i http://localhost:8000/openapi.json -o src/client
```

       */
      private static final String IMGUR_CLIENT_ID = "...";
      private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");

      private final OkHttpClient client = new OkHttpClient();

      public void run() throws Exception {
        // Use the imgur image upload API as documented at https://api.imgur.com/endpoints/image

			wantStatusCode: http.StatusOK,
			wantResp:       []string{"version"},
		},

		// APIs test
		{
			name:   "apis as root want success",
			method: http.MethodGet,
			path:   kmsAPIsPath,
			asRoot: true,

			wantStatusCode: http.StatusOK,
			wantResp:       []string{"stub/path"},
		},
		{
			name:   "apis as user with no policy want forbidden",
			method: http.MethodGet,
			path:   kmsAPIsPath,

**OpenAPI** définit un schéma d'API pour votre API. Il inclut des définitions (ou "schémas") de la donnée envoyée et reçue par votre API en utilisant **JSON Schema**, le standard des schémas de données JSON.

#### Allez voir `openapi.json`

Si vous êtes curieux d'à quoi ressemble le schéma brut **OpenAPI**, **FastAPI** génère automatiquement un (schéma) JSON avec les descriptions de toute votre API.

The simplicity of the dependency injection system makes **FastAPI** compatible with:

* all the relational databases
* NoSQL databases
* external packages
* external APIs
* authentication and authorization systems
* API usage monitoring systems
* response data injection systems
* etc.

## Simple and Powerful { #simple-and-powerful }

### Importa `HTTPException`

{* ../../docs_src/handling_errors/tutorial001.py hl[1] *}

### Lanza un `HTTPException` en tu código

`HTTPException` es una excepción de Python normal con datos adicionales relevantes para APIs.

Debido a que es una excepción de Python, no la `return`, sino que la `raise`.

### Lance o `HTTPException` no seu código.

`HTTPException`, ao fundo, nada mais é do que a conjunção entre uma exceção comum do Python e informações adicionais relevantes para APIs.

E porque é uma exceção do Python, você não **retorna** (return) o `HTTPException`, você lança o (raise) no seu código.

### Automatische Dokumentation

Interaktive API-Dokumentation und erkundbare Web-Benutzeroberflächen. Da das Framework auf OpenAPI basiert, gibt es mehrere Optionen, zwei sind standardmäßig vorhanden.

* <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank"><strong>Swagger UI</strong></a>, bietet interaktive Erkundung, testen und rufen Sie ihre API direkt im Webbrowser auf.

9. Open a Pull Request

### Code Style

- Use Eclipse formatter configuration (`src/config/eclipse/formatter/java.xml`)
- Follow existing naming conventions
- Add comprehensive JavaDoc for public APIs
- Write unit and integration tests

## License

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"