You will see something like this:

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

!!! check "Authorize button!"
    You already have a shiny new "Authorize" button.

    And your *path operation* has a little lock in the top-right corner that you can click.

* 🔧 Correct DeprecationWarning config and comment in pytest settings. PR [#4008](https://github.com/tiangolo/fastapi/pull/4008) by [@graingert](https://github.com/graingert).
* 🔧 Swap light/dark theme button icon. PR [#3246](https://github.com/tiangolo/fastapi/pull/3246) by [@eddsalkield](https://github.com/eddsalkield).

## Star **FastAPI** in GitHub

You can "star" FastAPI in GitHub (clicking the star button at the top right): <a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>. ⭐️

      </a>
    </div>
    <div class="item">
      <iframe style="display: inline-block; vertical-align: middle; border: none; margin-right: 0.5rem;" src="https://github.com/sponsors/tiangolo/button" title="Sponsor tiangolo" height="35" width="116" style="border: 0;"></iframe> <a class="announce-link" target="_blank" href="https://github.com/sponsors/tiangolo">You can now sponsor <strong>FastAPI</strong> 🍰</a>
    </div>
  </div>

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Click on the button "Try it out", it allows you to fill the parameters and directly interact with the API:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Then click on the "Execute" button, the user interface will communicate with your API, send the parameters, get the results and show them on the screen:

## Es in Aktion sehen

Öffnen Sie die interaktive Dokumentation: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

### Authentifizieren

Klicken Sie auf den Button „Authorize“.

Verwenden Sie die Anmeldedaten:

Benutzer: `johndoe`

Passwort: `secret`.

<img src="/img/tutorial/security/image04.png">

Nach der Authentifizierung im System sehen Sie Folgendes:

## See it in action

Open the interactive docs: <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

### Authenticate

Click the "Authorize" button.

Use the credentials:

User: `johndoe`

Password: `secret`

<img src="/img/tutorial/security/image04.png">

After authenticating in the system, you will see it like:

                """
                The OAuth2 redirect endpoint for the Swagger UI.

                By default it is `/docs/oauth2-redirect`.

                This is only used if you use OAuth2 (with the "Authorize" button)
                with Swagger UI.
                """
            ),
        ] = "/docs/oauth2-redirect",
        swagger_ui_init_oauth: Annotated[
            Optional[Dict[str, Any]],
            Doc(

## **FastAPI** auf GitHub einen Stern geben

Sie können FastAPI auf GitHub „starren“ (durch Klicken auf den Stern-Button oben rechts): <a href="https://github.com/tiangolo/fastapi" class="external-link" target="_blank">https://github.com/tiangolo/fastapi</a>. ⭐️

## Recapitulação

Com **FastAPI** você tem a flexibilidade máxima fornecida pelos modelos Pydantic, enquanto seu código é mantido simples, curto e elegante.

Mas com todos os benefícios:

* Suporte do editor (compleção em todo canto!)
* Conversão de dados (leia-se parsing/serialização)
* Validação de dados
* Documentação dos esquemas