char ch;
        int i, j, state, len;
        char[] out;
        byte[] b = new byte[1];

        if (str == null) {
            return null;
        }

        len = str.length();
        out = new char[len];
        state = 0;
        for (i = j = 0; i < len; i++) {
            switch (state) {
            case 0:
                ch = str.charAt(i);

///

/// note | Detalhes Técnicos

Você também pode usar `from starlette.requests import Request`.

**FastAPI** fornece isso como uma conveniência para você, o desenvolvedor. Mas vem diretamente da Starlette.

///

### Antes e depois da `response` { #before-and-after-the-response }

///

## Mehr Informationen { #more-info }

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

* [Die `WebSocket`-Klasse](https://www.starlette.dev/websockets/).

LICENSE (CDDL)

The code released under the CDDL shall be governed by the laws of the
State of California (excluding conflict-of-law provisions). Any
litigation relating to this License shall be subject to the jurisdiction
of the Federal Courts of the Northern District of California and the
state courts of the State of California, with venue lying in Santa Clara
County, California.

///

## Plus d'informations { #more-info }

Pour en savoir plus sur les options, consultez la documentation de Starlette concernant :

* [La classe `WebSocket`](https://www.starlette.dev/websockets/).

   * Executor#execute(Runnable) execute()} method is called when this service is started and
   * stopped, and should return promptly.
   */
  protected Executor executor() {
    return command -> newThread(threadNameSupplier.get(), command).start();
  }

  @Override
  public String toString() {
    return serviceName() + " [" + state() + "]";
  }

  @Override
  public final boolean isRunning() {

Ve bu iki şey, `scope` ve `receive`, yeni bir `Request` instance'ı oluşturmak için gerekenlerdir.

`Request` hakkında daha fazla bilgi için [Starlette'ın Request dokümantasyonu](https://www.starlette.dev/requests/) bölümüne bakın.

///

`GzipRequest.get_route_handler` tarafından döndürülen fonksiyonun farklı yaptığı tek şey, `Request`'i bir `GzipRequest`'e dönüştürmektir.

{* ../../docs_src/app_testing/tutorial002_py310.py hl[27:31] *}

/// note | Nota

Para más detalles, revisa la documentación de Starlette sobre [probar WebSockets](https://www.starlette.dev/testclient/#testing-websocket-sessions).

$ python main.py

I solemnly swear 🐺
```

</div>

## Alternatives { #alternatives }

This is a simple guide to get you started and teach you how everything works **underneath**.

There are many **alternatives** to managing virtual environments, package dependencies (requirements), projects.

アプリケーションにテストを追加すべきです。

**FastAPI** では非常に簡単に実現できます（Starlette のおかげです）。ドキュメントを確認して下さい: [テスト](../tutorial/testing.md)

テストを追加したら、**FastAPI** のバージョンをより新しいものにアップグレードし、テストを実行することで全てのコードが正しく動作するか確認できます。

全てが動作する、または必要な変更を行った後に全てのテストが通るなら、その新しいバージョンに `fastapi` を固定できます。

## Starletteについて { #about-starlette }

`starlette` のバージョンは固定すべきではありません。

**FastAPI** のバージョンが異なれば、Starlette の特定のより新しいバージョンが使われます。