Например, вы можете создать подкласс `HTTPBearer`, который будет возвращать ошибку `403 Forbidden` вместо стандартной `401 Unauthorized`:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip | Совет

Обратите внимание, что функция возвращает экземпляр исключения, не вызывает его. Выброс выполняется остальным внутренним кодом.

It is provided directly by Starlette, but you can import it from `fastapi`:

```python
from fastapi import WebSocket
```

/// tip

When you want to define dependencies that should be compatible with both HTTP and WebSockets, you can define a parameter that takes an `HTTPConnection` instead of a `Request` or a `WebSocket`.

///

::: fastapi.WebSocket

/// info

<a href="https://docs.python.org/3/library/enum.html" class="external-link" target="_blank">Les énumérations (ou enums) sont disponibles en Python</a> depuis la version 3.4.

///

/// tip | Astuce

Pour ceux qui se demandent, "AlexNet", "ResNet", et "LeNet" sont juste des noms de <abbr title="Techniquement, des architectures de modèles">modèles</abbr> de Machine Learning.

///

For example, you can create a subclass of `HTTPBearer` that returns a `403 Forbidden` error instead of the default `401 Unauthorized` error:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip

Notice that the function returns the exception instance, it doesn't raise it. The raising is done in the rest of the internal code.

Por exemplo, você pode criar uma subclasse de `HTTPBearer` que retorne um erro `403 Forbidden` em vez do erro padrão `401 Unauthorized`:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip | Dica

Perceba que a função retorna a instância da exceção, ela não a lança. O lançamento é feito no restante do código interno.

Lá você pode definir:

* O "Item ID", usado no path.
* O "Token" usado como um parâmetro de consulta.

/// tip | Dica

Perceba que a consulta `token` será manipulada por uma dependência.

///

Com isso você pode conectar o WebSocket e então enviar e receber mensagens:

<img src="/img/tutorial/websockets/image05.png">

Projeniz için ilginç ve yararlı görünen bir şey varsa devam edin ve inceleyin, aksi halde bunları atlayabilirsiniz.

/// tip | İpucu

**FastAPI**'ı düzgün (ve önerilen) şekilde öğrenmek istiyorsanız [Öğretici - Kullanıcı Rehberi](../tutorial/index.md){.internal-link target=_blank}'ni bölüm bölüm okuyun.

    * Then it returns the `response` generated by the corresponding *path operation*.
* You can then further modify the `response` before returning it.

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

/// tip

Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the `X-` prefix</a>.

遵循语义版本控制约定，任何低于`1.0.0`的版本都可能会添加 breaking changes。

FastAPI 还遵循这样的约定：任何`PATCH`版本更改都是为了bug修复和non-breaking changes。

/// tip

"PATCH"是最后一个数字，例如，在`0.2.3`中，PATCH版本是`3`。

///

因此，你应该能够固定到如下版本：

```txt
fastapi>=0.45.0,<0.46.0
```

"MINOR"版本中会添加breaking changes和新功能。

/// tip

"MINOR"是中间的数字，例如，在`0.2.3`中，MINOR版本是`2`。

///

## 升级FastAPI版本

你应该为你的应用程序添加测试。

Если что-то кажется интересным и полезным для вашего проекта, смело изучайте; в противном случае, вероятно, можно просто пропустить.

/// tip | Совет

Если вы хотите изучить FastAPI структурированно (рекомендуется), вместо этого читайте [Учебник — Руководство пользователя](../tutorial/index.md){.internal-link target=_blank} по главам.