TimedRoute Class — fastapi Architecture

Architecture documentation for the TimedRoute class in tutorial003_py310.py from the fastapi codebase.

Class python FastAPI

Entity Profile

FastAPI→ TimedRoute Class — fastapi Architecture

Dependency Diagram

graph TD
  2152a884_3ef1_bb8b_7208_01baaa0fdc45["TimedRoute"]
  aa28685f_bb97_e988_ff40_3e5385960f32["APIRoute"]
  2152a884_3ef1_bb8b_7208_01baaa0fdc45 -->|extends| aa28685f_bb97_e988_ff40_3e5385960f32
  9dc29258_63d8_2a6a_b7bd_2461b5eff8ea["tutorial003_py310.py"]
  2152a884_3ef1_bb8b_7208_01baaa0fdc45 -->|defined in| 9dc29258_63d8_2a6a_b7bd_2461b5eff8ea
  76b9112c_e10c_9fec_0fa2_a748d4271bb6["get_route_handler()"]
  2152a884_3ef1_bb8b_7208_01baaa0fdc45 -->|method| 76b9112c_e10c_9fec_0fa2_a748d4271bb6

Relationship Graph

Source Code

docs_src/custom_request_and_route/tutorial003_py310.py lines 8–22

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)
            duration = time.time() - before
            response.headers["X-Response-Time"] = str(duration)
            print(f"route duration: {duration}")
            print(f"route response: {response}")
            print(f"route response headers: {response.headers}")
            return response

        return custom_route_handler