Function app

fastapi/routing.py:126–150

(scope: Scope, receive: Receive, send: Send)

    )  # ty: ignore[invalid-assignment]

    async def app(scope: Scope, receive: Receive, send: Send) -> None:
        request = Request(scope, receive, send)

        async def app(scope: Scope, receive: Receive, send: Send) -> None:
            # Starts customization
            response_awaited = False
            async with AsyncExitStack() as request_stack:
                scope["fastapi_inner_astack"] = request_stack
                async with AsyncExitStack() as function_stack:
                    scope["fastapi_function_astack"] = function_stack
                    response = await f(request)
                await response(scope, receive, send)
                # Continues customization
                response_awaited = True
            if not response_awaited:
                raise FastAPIError(
                    "Response not awaited. There's a high chance that the "
                    "application code is raising an exception and a dependency with yield "
                    "has a block with a bare except, or a block with except Exception, "
                    "and is not raising the exception again. Read more about it in the "
                    "docs: https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/#dependencies-with-yield-and-except"
                )

        # Same as in Starlette
        await wrap_app_handling_exceptions(app, request)(scope, receive, send)

    return app