external_docs = {
    "description": "External API documentation.",
    "url": "https://docs.example.com/api-general",
}

app = FastAPI(openapi_external_docs=external_docs)


@app.api_route("/api_route")
def non_operation():
    return {"message": "Hello World"}


def non_decorated_route():
    return {"message": "Hello World"}


app.add_api_route("/non_decorated_route", non_decorated_route)

from inline_snapshot import snapshot

from .main import app

client = TestClient(app)


@pytest.mark.parametrize(
    "path,expected_status,expected_response",
    [
        ("/api_route", 200, {"message": "Hello World"}),
        ("/non_decorated_route", 200, {"message": "Hello World"}),
        ("/nonexistent", 404, {"detail": "Not Found"}),
    ],
)

        """
        Include another `APIRouter` in the same current `APIRouter`.

        Read more about it in the
        [FastAPI docs for Bigger Applications](https://fastapi.tiangolo.com/tutorial/bigger-applications/).

        ## Example

        ```python
        from fastapi import APIRouter, FastAPI

        app = FastAPI()
        internal_router = APIRouter()
        users_router = APIRouter()

from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float | None = None


@app.api_route("/items/{item_id}", methods=["GET"])
def get_items(item_id: str):
    return {"item_id": item_id}


def get_not_decorated(item_id: str):
    return {"item_id": item_id}

Do this:

```python
from fastapi import APIRouter, FastAPI

app = FastAPI()

router = APIRouter(prefix="/items", tags=["items"])


@router.get("/")
async def list_items():
    return []


# In main.py
app.include_router(router)
```

instead of this:

```python
# DO NOT DO THIS
from fastapi import APIRouter, FastAPI

app = FastAPI()

                "https://fastapi.tiangolo.com/advanced/sub-applications/"
            )
        self.webhooks: Annotated[
            routing.APIRouter,
            Doc(
                """
                The `app.webhooks` attribute is an `APIRouter` with the *path
                operations* that will be used just for documentation of webhooks.

                Read more about it in the

from fastapi import APIRouter, FastAPI
from fastapi.routing import APIRoute
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from starlette.routing import Route

app = FastAPI()


class APIRouteA(APIRoute):
    x_type = "A"


class APIRouteB(APIRoute):
    x_type = "B"


class APIRouteC(APIRoute):
    x_type = "C"


router_a = APIRouter(route_class=APIRouteA)

# `APIRouter` class

Here's the reference information for the `APIRouter` class, with all its parameters, attributes and methods.

You can import the `APIRouter` class directly from `fastapi`:

```python
from fastapi import APIRouter
```

::: fastapi.APIRouter
    options:
        members:
            - websocket
            - include_router
            - get
            - put
            - post
            - delete

import time
from collections.abc 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()

# Request e classe APIRoute personalizadas { #custom-request-and-apiroute-class }

Em alguns casos, você pode querer sobrescrever a lógica usada pelas classes `Request` e `APIRoute`.

Em particular, isso pode ser uma boa alternativa para uma lógica em um middleware.

Por exemplo, se você quiser ler ou manipular o corpo da requisição antes que ele seja processado pela sua aplicação.

/// danger | Cuidado

Isso é um recurso "avançado".