def test_routerprefixindex():
    client = TestClient(app)
    with client.websocket_connect("/prefix/") as websocket:
        data = json.loads(websocket.receive_text())

                ```python
                "items:read items:write users:read profile openid"
                ````

                would represent the scopes:

                * `items:read`
                * `items:write`
                * `users:read`
                * `profile`
                * `openid`
                """
            ),
        ] = "",

## About proxies with a stripped path prefix

Keep in mind that a proxy with stripped path prefix is only one of the ways to configure it.

Probably in many cases the default will be that the proxy doesn't have a stripped path prefix.

@router_b.get("/")
def get_b():
    return {"msg": "B"}


@router_c.get("/")
def get_c():
    return {"msg": "C"}


router_b.include_router(router=router_c, prefix="/c")
router_a.include_router(router=router_b, prefix="/b")
app.include_router(router=router_a, prefix="/a")


client = TestClient(app)


@pytest.mark.parametrize(
    "path,expected_status,expected_response",
    [
        ("/a", 200, {"msg": "A"}),

router = APIRouter()

sub_router = APIRouter()

app = FastAPI()


@sub_router.get("/")
def read_item():
    return {"id": "foo"}


router.include_router(sub_router, prefix="/items")

app.include_router(router)

client = TestClient(app)


def test_path_operation():
    response = client.get("/items/")
    assert response.status_code == 200, response.text

          latest_changes_file: docs/en/docs/release-notes.md
          latest_changes_header: '## Latest Changes'
          end_regex: '^## '
          debug_logs: true

* **Uvicorn**:
    * Tendrá el mejor rendimiento, ya que no tiene mucho código extra aparte del propio servidor.

{!../../../docs_src/middleware/tutorial001.py!}
```

!!! tip
    Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the 'X-' prefix</a>.

        500: {"description": "Server error level 0"},
    },
    default_response_class=ResponseLevel0,
    callbacks=callback_router0.routes,
)

router2_override = APIRouter(
    prefix="/level2",
    tags=["level2a", "level2b"],
    dependencies=[Depends(dep2)],
    responses={
        402: {"description": "Client error level 2"},
        502: {"description": "Server error level 2"},
    },

    raise CustomError()


def make_app(app=None, **kwargs):
    app = app or FastAPI(**kwargs)
    app.include_router(router)
    app.include_router(prefix_router, prefix="/prefix")
    app.include_router(native_prefix_route)
    return app


app = make_app(app)


def test_app():
    client = TestClient(app)
    with client.websocket_connect("/") as websocket: