get_route_handler() — fastapi Function Reference

Architecture documentation for the get_route_handler() function in tutorial003_py39.py from the fastapi codebase.

Function python FastAPI Responses calls 1

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FastAPI→ Responses→ get_route_handler() — fastapi Function Reference

Dependency Diagram

graph TD
  ff023db3_e874_8a63_6436_6797477cb4ba["get_route_handler()"]
  e923334c_a558_6ae1_89bf_f87e1e798697["TimedRoute"]
  ff023db3_e874_8a63_6436_6797477cb4ba -->|defined in| e923334c_a558_6ae1_89bf_f87e1e798697
  2b3c8ec5_f007_7808_7e6a_0e94569b6a17["get_route_handler()"]
  ff023db3_e874_8a63_6436_6797477cb4ba -->|calls| 2b3c8ec5_f007_7808_7e6a_0e94569b6a17
  style ff023db3_e874_8a63_6436_6797477cb4ba fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

docs_src/custom_request_and_route/tutorial003_py39.py lines 9–22

    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