{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}

/// tip | Tipp

Beachten Sie, dass benutzerdefinierte proprietäre Header hinzugefügt werden können <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">unter Verwendung des `X-`-Präfixes</a>.

하지만 파일이 포함된 경우, `multipart/form-data`로 인코딩됩니다. `File`을 사용하였다면, **FastAPI**는 본문의 적합한 부분에서 파일을 가져와야 한다는 것을 인지합니다.

인코딩과 폼 필드에 대해 더 알고싶다면, <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST" class="external-link" target="_blank"><code>POST</code>에 관한<abbr title="Mozilla Developer Network">MDN</abbr>웹 문서</a> 를 참고하기 바랍니다,.

///

/// warning | 경고

Die Proxy-Header sind:

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For" class="external-link" target="_blank">X-Forwarded-For</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto" class="external-link" target="_blank">X-Forwarded-Proto</a>

# WebSockets { #websockets }

Sie können <a href="https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API" class="external-link" target="_blank">WebSockets</a> mit **FastAPI** verwenden.

## `websockets` installieren { #install-websockets }

    * 次に、対応する*path operation*によって生成された `response` を返します。
* その後、`response` を返す前にさらに `response` を変更することもできます。

{* ../../docs_src/middleware/tutorial001.py hl[8:9,11,14] *}

/// tip | 豆知識

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">'X-'プレフィックスを使用</a>してカスタムの独自ヘッダーを追加できます。

{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}

/// tip | Consejo

Ten en cuenta que los custom proprietary headers se pueden añadir <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando el prefijo `X-`</a>.

### El abbr da una frase completa y una explicación { #the-abbr-gives-a-full-phrase-and-an-explanation }

* <abbr title="Mozilla Developer Network – Red de Desarrolladores de Mozilla: documentación para desarrolladores, escrita por la gente de Firefox">MDN</abbr>
* <abbr title="Input/Output – Entrada/Salida: lectura o escritura de disco, comunicaciones de red.">I/O</abbr>.

////

### O abbr fornece uma frase completa e uma explicação { #the-abbr-gives-a-full-phrase-and-an-explanation }

* <abbr title="Mozilla Developer Network – Rede de Desenvolvedores da Mozilla: documentação para desenvolvedores, escrita pelo pessoal do Firefox">MDN</abbr>
* <abbr title="Input/Output – Entrada/Saída: leitura ou escrita em disco, comunicações de rede.">I/O</abbr>.

////

# Веб-сокеты { #websockets }

Вы можете использовать <a href="https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API" class="external-link" target="_blank">веб-сокеты</a> в **FastAPI**.

## Установка `websockets` { #install-websockets }

Убедитесь, что вы создали [виртуальное окружение](../virtual-environments.md){.internal-link target=_blank}, активировали его и установили `websockets` (библиотека Python, упрощающая работу с протоколом "WebSocket"):

   * ["mail", "google", "com"]}.
   */
  public ImmutableList<String> parts() {
    return parts;
  }

  /**
   * Indicates whether this domain name represents a <i>public suffix</i>, as defined by the Mozilla
   * Foundation's <a href="http://publicsuffix.org/">Public Suffix List</a> (PSL). A public suffix
   * is one under which Internet users can directly register names, such as {@code com}, {@code