To use, first add this library as a test dependency:

```
testImplementation("com.squareup.okhttp3:mockwebserver3-junit4:5.3.0")
```

Then in tests annotated `@org.junit.Test`, you may declare a field with the `@Rule` annotation:

```
@Rule public final MockWebServerRule serverRule = new MockWebServerRule();
```

The `serverRule` field has a `server` field. It is an instance of `MockWebServer`. That instance

     * supports version ranges and updates the given {@code parent} instance to match the returned {@code ModelSource}.
     * If {@code parent} declares a version range, the version corresponding to the returned {@code ModelSource} will
     * be set on the given {@code parent}.
     * </p>
     *
     * @param parent The parent coordinates to resolve, must not be {@code null}.

Ou a dependência não retorna nenhum valor.

Mas você ainda precisa que ela seja executada/resolvida.

Para esses casos, em vez de declarar um parâmetro em uma *função de operação de rota* com `Depends`, você pode adicionar um argumento `dependencies` do tipo `list` ao decorador da operação de rota.

```

::: fastapi.Depends

## `Security()`

For many scenarios, you can handle security (authorization, authentication, etc.) with dependencies, using `Depends()`.

But when you want to also declare OAuth2 scopes, you can use `Security()` instead of `Depends()`.

You can import `Security()` directly from `fastapi`:

```python
from fastapi import Security
```

Other modules and platforms define the services that they contribute to the runtime.

       execution it sees that the classpath has changed, and so to be
       safe, it needs to re-run.

       - This is unfortunate, because actually it would be safe to declare
       the task as up-to-date, because these two files, which are based on
       the generated index.xml, are outputs, not inputs. We can be sure of
       this because they are deleted in the @BeforeEach method of the

# Cookies de Response { #response-cookies }

## Usar un parámetro `Response` { #use-a-response-parameter }

Puedes declarar un parámetro de tipo `Response` en tu *path operation function*.

Y luego puedes establecer cookies en ese objeto de response *temporal*.

{* ../../docs_src/response_cookies/tutorial002_py39.py hl[1, 8:9] *}

Y entonces puedes devolver cualquier objeto que necesites, como normalmente lo harías (un `dict`, un modelo de base de datos, etc).

# Security Tools

When you need to declare dependencies with OAuth2 scopes you use `Security()`.

But you still need to define what is the dependable, the callable that you pass as a parameter to `Depends()` or `Security()`.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.

Você pode declarar um `response_model`, utilizando o código de status padrão `200` (ou um customizado caso você precise), e depois adicionar informações adicionais para esse mesmo retorno em `responses`, diretamente no esquema OpenAPI.

O **FastAPI** manterá as informações adicionais do `responses`, e combinará com o esquema JSON do seu modelo.

Pero todavía quieres poder filtrar y convertir los datos que devuelves con un `response_model`.

Para esos casos, puedes usar un parámetro `Response`.

## Usa un parámetro `Response` { #use-a-response-parameter }

Puedes declarar un parámetro de tipo `Response` en tu *path operation function* (como puedes hacer para cookies y headers).

Y luego puedes establecer el `status_code` en ese objeto de response *temporal*.