@pytest.fixture(
    name="client",
    params=[
        "tutorial001_an_py39",
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(
        f"docs_src.authentication_error_status_code.{request.param}"
    )

    client = TestClient(mod.app)
    return client


def test_get_me(client: TestClient):
    response = client.get("/me", headers={"Authorization": "Bearer secrettoken"})

Você pode utilizar `async def` ou apenas `def`.

E você pode declarar dependências utilizando `async def` dentro de *funções de operação de rota* definidas com `def`, ou declarar dependências com `def` e utilizar dentro de *funções de operação de rota* definidas com `async def`, etc.

Não faz diferença. O **FastAPI** sabe o que fazer.

/// note | Nota

from typing import Callable

from fastapi import APIRouter, FastAPI, Request, Response
from fastapi.routing import APIRoute


class TimedRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            before = time.time()
            response: Response = await original_route_handler(request)

swagger_ui_oauth2_redirect_url = "/docs/redirect"

app = FastAPI(swagger_ui_oauth2_redirect_url=swagger_ui_oauth2_redirect_url)


@app.get("/items/")
async def read_items():
    return {"id": "foo"}


client = TestClient(app)


def test_swagger_ui():
    response = client.get("/docs")
    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"

# Paramètres de requête et validations de chaînes de caractères

**FastAPI** vous permet de déclarer des informations et des validateurs additionnels pour vos paramètres de requêtes.

Commençons avec cette application pour exemple :

{* ../../docs_src/query_params_str_validations/tutorial001.py hl[9] *}

    )


@app.get(app.swagger_ui_oauth2_redirect_url, include_in_schema=False)
async def swagger_ui_redirect():
    return get_swagger_ui_oauth2_redirect_html()


@app.get("/redoc", include_in_schema=False)
async def redoc_html():
    return get_redoc_html(
        openapi_url=app.openapi_url,
        title=app.title + " - ReDoc",

        "tutorial001_an_py39",
        pytest.param("tutorial001_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_multiple_params.{request.param}")

    client = TestClient(mod.app)
    return client


def test_post_body_q_bar_content(client: TestClient):
    response = client.put("/items/5?q=bar", json={"name": "Foo", "price": 50.5})

        ("/items/123?q=somequery", {"item_id": 123, "q": "somequery"}),
    ],
)
def test_read_items(client: TestClient, path, expected_response):
    response = client.get(path)
    assert response.status_code == 200, response.text
    assert response.json() == expected_response


def test_read_items_invalid_item_id(client: TestClient):
    response = client.get("/items/invalid_id?q=somequery")

In diesem Beispiel generiert die Funktion `generate_html_response()` bereits eine `Response` und gibt sie zurück, anstatt das HTML in einem `str` zurückzugeben.

Indem Sie das Ergebnis des Aufrufs von `generate_html_response()` zurückgeben, geben Sie bereits eine `Response` zurück, die das Standardverhalten von **FastAPI** überschreibt.

@app.get("/users/me")
def read_current_user(
    credentials: Optional[HTTPAuthorizationCredentials] = Security(security),
):
    if credentials is None:
        return {"msg": "Create an account first"}
    return {"scheme": credentials.scheme, "credentials": credentials.credentials}


client = TestClient(app)


def test_security_http_base():