TimedRoute Class — fastapi Architecture

Architecture documentation for the TimedRoute class in tutorial003_py39.py from the fastapi codebase.

Class python FastAPI

Entity Profile

FastAPI→ TimedRoute Class — fastapi Architecture

Dependency Diagram

graph TD
  e923334c_a558_6ae1_89bf_f87e1e798697["TimedRoute"]
  aa28685f_bb97_e988_ff40_3e5385960f32["APIRoute"]
  e923334c_a558_6ae1_89bf_f87e1e798697 -->|extends| aa28685f_bb97_e988_ff40_3e5385960f32
  d85526ed_8991_ee39_82b8_c708098f357f["tutorial003_py39.py"]
  e923334c_a558_6ae1_89bf_f87e1e798697 -->|defined in| d85526ed_8991_ee39_82b8_c708098f357f
  ff023db3_e874_8a63_6436_6797477cb4ba["get_route_handler()"]
  e923334c_a558_6ae1_89bf_f87e1e798697 -->|method| ff023db3_e874_8a63_6436_6797477cb4ba

Relationship Graph

Source Code

docs_src/custom_request_and_route/tutorial003_py39.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