## Technische Details

Die Klasse `BackgroundTasks` stammt direkt von <a href="https://www.starlette.io/background/" class="external-link" target="_blank">`starlette.background`</a>.

# Body – Aktualisierungen

## Ersetzendes Aktualisieren mit `PUT`

Um einen Artikel zu aktualisieren, können Sie die <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT" class="external-link" target="_blank">HTTP `PUT`</a> Operation verwenden.

* Он реализует <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> `async` интерфейс.
* Он предоставляет реальный объект Python <a href="https://docs.python.org/3/library/tempfile.html#tempfile.SpooledTemporaryFile" class="external-link" target="_blank">`SpooledTemporaryFile`</a> который вы можете передать непосредственно другим библиотекам, которые ожидают файл в качестве объекта.

Ví dụ:

* <a href="https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment" class="external-link" target="_blank">VS Code</a>
* <a href="https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html" class="external-link" target="_blank">PyCharm</a>

/// tip

Bạn thường chỉ cần làm điều này **một lần**, khi bạn tạo môi trường ảo.

///

## 🔬 🌐 ⏮️ Traefik

👆 💪 💪 🏃 🥼 🌐 ⏮️ 🎞 ➡ 🔡 ⚙️ <a href="https://docs.traefik.io/" class="external-link" target="_blank">Traefik</a>.

<a href="https://github.com/containous/traefik/releases" class="external-link" target="_blank">⏬ Traefik</a>, ⚫️ 👁 💱, 👆 💪 ⚗ 🗜 📁 &amp; 🏃 ⚫️ 🔗 ⚪️➡️ 📶.

⤴️ ✍ 📁 `traefik.toml` ⏮️:

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]

///

## Use cases { #use-cases }

Some use cases include:

* Converting non-JSON request bodies to JSON (e.g. <a href="https://msgpack.org/index.html" class="external-link" target="_blank">`msgpack`</a>).
* Decompressing gzip-compressed request bodies.
* Automatically logging all request bodies.

## Handling custom request body encodings { #handling-custom-request-body-encodings }

Например:

* <a href="https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment" class="external-link" target="_blank">VS Code</a>
* <a href="https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html" class="external-link" target="_blank">PyCharm</a>

/// tip | Подсказка

Обычно это делается один раз, при создании виртуальной среды разработки.

///

import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
import org.apache.maven.artifact.resolver.ArtifactResolutionException;

/**
 * Describes a version transformation during artifact resolution - "latest" type
 */
@Named("latest")
@Singleton
@Deprecated
public class LatestArtifactTransformation extends AbstractVersionTransformation {

    @Override
    public void transformForResolve(Artifact artifact, RepositoryRequest request)

adicionados <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando o prefixo 'X-'</a>.

Porém, se voce tiver cabeçalhos personalizados que deseja que um cliente no navegador possa ver, você precisa adicioná-los às suas configurações de CORS (saiba mais em [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md){.internal-link target=_blank}), usando o parâmetro `expose_headers` descrito na <a href="https://www.starlette.io/middlew...

También puedes crear cookies al devolver una `Response` directamente en tu código.

Para hacer eso, puedes crear un response como se describe en [Devolver un Response Directamente](response-directly.md){.internal-link target=_blank}.

Luego establece Cookies en ella, y luego devuélvela:

{* ../../docs_src/response_cookies/tutorial001.py hl[10:12] *}

/// tip | Consejo