Starlette (и **FastAPI**) основаны на <a href="https://anyio.readthedocs.io/en/stable/" class="external-link" target="_blank">AnyIO</a>, что делает их совместимыми и со стандартной библиотекой Python <a href="https://docs.python.org/3/library/asyncio-task.html" class="external-link" target="_blank">asyncio</a>, и с <a href="https://trio.readthedocs.io/en/stable/" class="external-link" target="_blank">Trio</a>.

/// info | Informação

Para saber mais sobre o <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic, verifique a sua documentação</a>.

///

O **FastAPI** é todo baseado em Pydantic.

Você verá muito mais disso na prática no [Tutorial - Guia do usuário](tutorial/index.md){.internal-link target=_blank}.

/// tip | Dica

     * and the user may have provided no instruction about which type to use. In such
     * case, the plugin may apply rules for choosing a path. See for example
     * {@link JavaPathType#CLASSES} and {@link JavaPathType#MODULES}.</p>
     */
    @Nonnull
    Set<PathType> getPathTypes();

 *
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services.xml.SettingsXmlFactory} instead
 */
@Deprecated(since = "4.0.0")
public interface SettingsReader {

    /**
     * The key for the option to enable strict parsing. This option is of type {@link Boolean} and defaults to {@code

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">Понятие CORS или "Cross-Origin Resource Sharing"</a> относится к ситуациям, при которых запущенный в браузере фронтенд содержит JavaScript-код, который взаимодействует с бэкендом, находящимся на другом "источнике" ("origin").

## Источник { #origin }

Il y a un chapitre entier ici dans la documentation à ce sujet, vous pouvez le lire sur [Réponses supplémentaires dans OpenAPI](additional-responses.md){.internal-link target=_blank}.

## OpenAPI supplémentaire

Lorsque vous déclarez un *chemin* dans votre application, **FastAPI** génère automatiquement les métadonnées concernant ce *chemin* à inclure dans le schéma OpenAPI.

在 OpenAPI 中可以使用 `anyOf` 定义。

为此，请使用 Python 标准类型提示 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>：

/// note | 笔记

定义 <a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a> 类型时，要把详细的类型写在前面，然后是不太详细的类型。下例中，更详细的 `PlaneItem` 位于 `Union[PlaneItem，CarItem]` 中的 `CarItem` 之前。

///

     * Returns the input stream to be used for the Maven execution.
     * If not set, {@link System#in} will be used by default.
     *
     * @return the input stream, or null if not set
     */
    @Nullable
    InputStream stdIn();

    /**
     * Returns the output stream to be used for the Maven execution.
     * If not set, {@link System#out} will be used by default.
     *

Bu, bir `APIRouter` kullanmaktan farklıdır çünkü bağlanmış bir uygulama tamamen bağımsızdır. Ana uygulamanızın OpenAPI ve dokümanlar, bağlanmış uygulamadan hiçbir şey içermez, vb.

[Advanced User Guide](../advanced/index.md){.internal-link target=_blank} bölümünde daha fazla bilgi edinebilirsiniz.

## Detaylar

`"/static"` ifadesi, bu "alt uygulamanın" "bağlanacağı" alt yolu belirtir. Bu nedenle, `"/static"` ile başlayan her yol, bu uygulama tarafından işlenir.

Por ejemplo, vamos a añadir <a href="https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo" class="external-link" target="_blank">la extensión OpenAPI de ReDoc para incluir un logo personalizado</a>.

### **FastAPI** normal { #normal-fastapi }

Primero, escribe toda tu aplicación **FastAPI** como normalmente: