* Параметр запиту.
    * Заголовок.
    * Cookie.
* `http`: стандартні методи HTTP-автентифікації, включаючи:
    * `bearer`: заголовок `Authorization` зі значенням `Bearer` та токеном. Це успадковано з OAuth2.
    * HTTP Basic автентифікація
    * HTTP Digest, тощо.
* `oauth2`: усі способи обробки безпеки за допомогою OAuth2 (так звані «потоки»).

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

브라우저에서 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>을 열어보세요.

간단한 페이지가 나타날 것입니다:

<img src="/img/tutorial/websockets/image01.png">

입력창에 메시지를 입력하고 전송할 수 있습니다:

{* ../../docs_src/query_params_str_validations/tutorial011_an_py310.py hl[9] *}

Dann, mit einer URL wie:

```
http://localhost:8000/items/?q=foo&q=bar
```

bekommen Sie alle `q`-*Query-Parameter*-Werte (`foo` und `bar`) in einer Python-Liste – `list` – in ihrer *Pfadoperation-Funktion*, im Funktionsparameter `q`, überreicht.

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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,

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