Necesitas importar `WSGIMiddleware`.

Luego envuelve la aplicación WSGI (p. ej., Flask) con el middleware.

Y luego móntala bajo un path.

{* ../../docs_src/wsgi/tutorial001_py39.py hl[2:3,3] *}

## Revisa { #check-it }

Ahora, cada request bajo el path `/v1/` será manejado por la aplicación Flask.

Y el resto será manejado por **FastAPI**.

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial001_py39"),
        pytest.param("tutorial001_an_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.security.{request.param}")

    client = TestClient(mod.app)
    return client

{* ../../docs_src/advanced_middleware/tutorial001_py39.py hl[2,6] *}

## `TrustedHostMiddleware` { #trustedhostmiddleware }

Гарантирует, что во всех входящих запросах корректно установлен `Host`‑заголовок, чтобы защититься от атак на HTTP‑заголовок Host.

{* ../../docs_src/advanced_middleware/tutorial002_py39.py hl[2,6:8] *}

Поддерживаются следующие аргументы:

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial001_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.generate_clients.{request.param}")
    client = TestClient(mod.app)
    return client


def test_post_items(client: TestClient):

To do that, you can create a response as described in [Return a Response Directly](response-directly.md){.internal-link target=_blank}.

Then set Cookies in it, and then return it:

{* ../../docs_src/response_cookies/tutorial001_py39.py hl[10:12] *}

/// tip

Keep in mind that if you return a response directly instead of using the `Response` parameter, FastAPI will return it directly.

from starlette.testclient import TestClient

warnings.filterwarnings(
    "ignore",
    message=r"The 'lia' package has been renamed to 'cross_web'\..*",
    category=DeprecationWarning,
)

from docs_src.graphql_.tutorial001_py39 import app  # noqa: E402


@pytest.fixture(name="client")
def get_client() -> TestClient:
    return TestClient(app)


def test_query(client: TestClient):

## Использование `StaticFiles` { #use-staticfiles }

* Импортируйте `StaticFiles`.
* "Примонтируйте" экземпляр `StaticFiles()` к определённому пути.

{* ../../docs_src/static_files/tutorial001_py39.py hl[2,6] *}

/// note | Технические детали

Вы также можете использовать `from starlette.staticfiles import StaticFiles`.

{* ../../docs_src/path_params/tutorial005_py39.py hl[17] *}

#### *Enumerations-Wert* erhalten { #get-the-enumeration-value }

Den tatsächlichen Wert (in diesem Fall ein `str`) erhalten Sie via `model_name.value`, oder generell, `your_enum_member.value`:

{* ../../docs_src/path_params/tutorial005_py39.py hl[20] *}

/// tip | Tipp

import importlib
from types import ModuleType

import pytest

from ...utils import needs_py310


@pytest.fixture(
    name="test_module",
    params=[
        pytest.param("tutorial001_py39"),
        pytest.param("tutorial001_py310", marks=needs_py310),
        pytest.param("tutorial001_an_py39"),
        pytest.param("tutorial001_an_py310", marks=needs_py310),
    ],
)

Sie müssten sicherstellen, dass sie für jede Operation eindeutig ist.

{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py39.py hl[6] *}

### Verwendung des Namens der *Pfadoperation-Funktion* als operationId { #using-the-path-operation-function-name-as-the-operationid }