- tutorial/security/first-steps.md
      - tutorial/security/get-current-user.md
      - tutorial/security/simple-oauth2.md
      - tutorial/security/oauth2-jwt.md
    - tutorial/middleware.md
    - tutorial/cors.md
    - tutorial/sql-databases.md
    - tutorial/bigger-applications.md
    - tutorial/background-tasks.md
    - tutorial/metadata.md
    - tutorial/static-files.md
    - tutorial/testing.md

* **WebSocket** support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.
* **CORS**, GZip, Static Files, Streaming responses.
* **Session and Cookie** support.
* 100% test coverage.
* 100% type annotated codebase.

## Pydantic features

```

!!! tip "Dica"
	Você também poderia acessar o valor `"lenet"` com `ModelName.lenet.value`

#### Retorne *membros de enumeration*

Você pode retornar *membros de enum* da sua *rota de operação*, em um corpo JSON aninhado (por exemplo um `dict`).

Eles serão convertidos para o seus valores correspondentes (strings nesse caso) antes de serem retornados ao cliente:

```Python hl_lines="18  21  23"

* Le support de **GraphQL**.
* Les <abbr title="En anglais: In-process background tasks">tâches d'arrière-plan.</abbr>
* Des évènements de démarrages et d'arrêt.
* Un client de test basé sur `request`
* **CORS**, GZip, Static Files, Streaming responses.
* Le support des **Sessions et Cookies**.
* Une couverture de test à 100 %.
* 100 % de la base de code avec des annotations de type.

## Fonctionnalités de Pydantic

* **支持 WebSocket** 。
* **支持 GraphQL** 。
* 后台任务处理。
* Startup 和 shutdown 事件。
* 测试客户端基于 HTTPX。
* **CORS**, GZip, 静态文件, 流响应。
* 支持 **Session 和 Cookie** 。
* 100% 测试覆盖率。
* 代码库 100% 类型注释。

## Pydantic 特性

E as próximas seções assumem que você já leu ele, e que você conhece suas ideias principais.

## Curso TestDriven.io

have custom headers that you want a client in a browser to be able to see, you need to add them to your CORS configurations (read more in [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md){.internal-link target=_blank}), using the parameter `expose_headers` documented in <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">Starlette's CORS docs</a>....

Lesen Sie mehr darüber in der [FastAPI-Dokumentation über Middleware](../advanced/middleware.md).

::: fastapi.middleware.cors.CORSMiddleware

Kann von `fastapi` importiert werden:

```python
from fastapi.middleware.cors import CORSMiddleware
```

::: fastapi.middleware.gzip.GZipMiddleware

Kann von `fastapi` importiert werden:

```python

!!! توجه "جزئیات فنی"
    شما همچنین می‌توانید از `from starlette.requests import Request` استفاده کنید.

Es bietet:

* Eine sehr beeindruckende Leistung.
* WebSocket-Unterstützung.
* Hintergrundtasks im selben Prozess.
* Events für das Hoch- und Herunterfahren.
* Testclient basierend auf HTTPX.
* CORS, GZip, statische Dateien, Streamende Responses.
* Session- und Cookie-Unterstützung.
* 100 % Testabdeckung.
* 100 % Typannotierte Codebasis.
* Wenige starke Abhängigkeiten.