///

## Mehr Informationen

Weitere Informationen zu Optionen finden Sie in der Dokumentation von Starlette:

* <a href="https://www.starlette.io/websockets/" class="external-link" target="_blank">Die `WebSocket`-Klasse</a>.

That status code will be used in the response and will be added to the OpenAPI schema.

/// note | Technical Details

You could also use `from starlette import status`.

**FastAPI** provides the same `starlette.status` as `fastapi.status` just as a convenience for you, the developer. But it comes directly from Starlette.

///

## Tags { #tags }

# WebSockets

When defining WebSockets, you normally declare a parameter of type `WebSocket` and with it you can read data from the client and send data to it.

It is provided directly by Starlette, but you can import it from `fastapi`:

```python
from fastapi import WebSocket
```

/// tip

**FastAPI** then takes that JSON Schema data and puts it in OpenAPI, apart from all the other things it does.

///

### <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> { #starlette }

Starlette is a lightweight <abbr title="The new standard for building asynchronous Python web applications">ASGI</abbr> framework/toolkit, which is ideal for building high-performance asyncio services.

///

/// note | Technical Details

You could also use `from starlette.responses import JSONResponse`.

**FastAPI** provides the same `starlette.responses` as `fastapi.responses` just as a convenience for you, the developer. But most of the available responses come directly from Starlette. The same with `status`.

///

## OpenAPI and API docs { #openapi-and-api-docs }

Para esto, usas el `TestClient` en un statement `with`, conectándote al WebSocket:

{* ../../docs_src/app_testing/tutorial002.py hl[27:31] *}

/// note | Nota

Para más detalles, revisa la documentación de Starlette sobre <a href="https://www.starlette.io/testclient/#testing-websocket-sessions" class="external-link" target="_blank">probando sesiones WebSocket</a>.

///

### 🌅 ℹ

/// note | 📡 ℹ

👆 💪 ⚙️ `from starlette.responses import Response` ⚖️ `from starlette.responses import JSONResponse`.

**FastAPI** 🚚 🎏 `starlette.responses` `fastapi.responses` 🏪 👆, 👩‍💻. ✋️ 🌅 💪 📨 👟 🔗 ⚪️➡️ 💃.

 & `Response` 💪 ⚙️ 🛎 ⚒ 🎚 & 🍪, **FastAPI** 🚚 ⚫️ `fastapi.Response`.

///

<img src="/img/tutorial/response-status-code/image02.png">

/// note | Technical Details

You could also use `from starlette import status`.

**FastAPI** provides the same `starlette.status` as `fastapi.status` just as a convenience for you, the developer. But it comes directly from Starlette.

///

## Changing the default { #changing-the-default }

* Używany w aplikacjach produkcyjnych.

## Cechy Starlette

**FastAPI** jest w pełni kompatybilny z (oraz bazuje na) <a href="https://www.starlette.io/" class="external-link" target="_blank"><strong>Starlette</strong></a>. Tak więc każdy dodatkowy kod Starlette, który posiadasz, również będzie działał.

`FastAPI` jest w rzeczywistości podklasą `Starlette`, więc jeśli już znasz lub używasz Starlette, większość funkcji będzie działać w ten sam sposób.

{* ../../docs_src/static_files/tutorial001.py hl[2,6] *}

/// note | Detalhes técnicos

Você também pode usar `from starlette.staticfiles import StaticFiles`.

O **FastAPI** fornece o mesmo que `starlette.staticfiles` como `fastapi.staticfiles` apenas como uma conveniência para você, o desenvolvedor. Mas na verdade vem diretamente da Starlette.

///

### O que é "Montagem"