@Test
  fun simple() {
    val request = fromArgs("http://example.com").createRequest()
    assertThat(request.method).isEqualTo("GET")
    assertThat(request.url.toString()).isEqualTo("http://example.com/")
    assertThat(request.body).isNull()
  }

  @Test
  @Throws(IOException::class)
  fun put() {
    val request = fromArgs("-X", "PUT", "-d", "foo", "http://example.com").createRequest()
    assertThat(request.method).isEqualTo("PUT")

Ensuite, en arrière-plan, il mettra ces données JSON-compatible (par exemple un `dict`) à l'intérieur d'un `JSONResponse` qui sera utilisé pour envoyer la réponse au client.

Mais vous pouvez retourner une `JSONResponse` directement à partir de vos *opérations de chemin*.

Cela peut être utile, par exemple, pour retourner des en-têtes personnalisés ou des cookies.

## Renvoyer une `Response`

    response = client.post(
        "/users", json={"email": "johndoe@example.com", "password": "secret"}
    )
    assert response.json() == {"email": "johndoe@example.com"}


def test_filter_second_level_model():
    response = client.get("/pets/1")
    assert response.json() == {
        "name": "Nibbler",
        "owner": {"email": "johndoe@example.com"},
    }


def test_list_of_models():

                "Method com.example.Task.getIsFailOnError(): Is not annotated with @Incubating. Reason for accepting this: Upgraded property" to listOf("Method added to public class"),
                "Method com.example.Task.getIsFailOnError(): Is not annotated with @since 2.0. Reason for accepting this: Upgraded property" to listOf("Method added to public class"),

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo, por ejemplo:

```console
$ pip install python-multipart
```

///

/// note | Nota

Esto es compatible desde la versión `0.113.0` de FastAPI. 🤓

///

///

Vous pouvez étendre le schéma OpenAPI pour une *opération de chemin* en utilisant le paramètre `openapi_extra`.

### Extensions OpenAPI

Cet `openapi_extra` peut être utile, par exemple, pour déclarer [OpenAPI Extensions](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#specificationExtensions) :

{* ../../docs_src/path_operation_advanced_configuration/tutorial005.py hl[6] *}

                    <modelVersion>4.0.0</modelVersion>
                    <parent>
                        <groupId>com.example</groupId>
                        <artifactId>parent-project</artifactId>
                        <version>1.0.0</version>
                    </parent>
                    <groupId>com.example.child</groupId>
                    <artifactId>child-project</artifactId>
                    <version>2.0.0</version>

        model_config = ConfigDict(
            json_schema_extra={"example": {"data": "Data in schema_extra"}}
        )

    @app.post("/schema_extra/")
    def schema_extra(item: Item):
        return item

    with pytest.warns(FastAPIDeprecationWarning):

        @app.post("/example/")
        def example(item: Item = Body(example={"data": "Data in Body example"})):
            return item

    @app.post("/examples/")

    response = client.post(
        "/users", json={"email": "johndoe@example.com", "password": "secret"}
    )
    assert response.json() == {"email": "johndoe@example.com"}


def test_filter_second_level_model():
    response = client.get("/pets/1")
    assert response.json() == {
        "name": "Nibbler",
        "owner": {"email": "johndoe@example.com"},
    }


def test_list_of_models():

Si quieres devolver códigos de estado adicionales aparte del principal, puedes hacerlo devolviendo un `Response` directamente, como un `JSONResponse`, y configurando el código de estado adicional directamente.

Por ejemplo, supongamos que quieres tener una *path operation* que permita actualizar elementos, y devuelva códigos de estado HTTP de 200 "OK" cuando sea exitoso.