ValidationErrorLoggingRoute Class — fastapi Architecture

Architecture documentation for the ValidationErrorLoggingRoute class in tutorial002_an_py310.py from the fastapi codebase.

Class python FastAPI

Entity Profile

FastAPI→ ValidationErrorLoggingRoute Class — fastapi Architecture

Dependency Diagram

graph TD
  9dda2b47_091e_da54_5562_3b05e7817133["ValidationErrorLoggingRoute"]
  aa28685f_bb97_e988_ff40_3e5385960f32["APIRoute"]
  9dda2b47_091e_da54_5562_3b05e7817133 -->|extends| aa28685f_bb97_e988_ff40_3e5385960f32
  20502214_d6d6_2052_679f_afae0f3867db["tutorial002_an_py310.py"]
  9dda2b47_091e_da54_5562_3b05e7817133 -->|defined in| 20502214_d6d6_2052_679f_afae0f3867db
  4e083208_d1cb_8c30_4934_6afea76257ab["get_route_handler()"]
  9dda2b47_091e_da54_5562_3b05e7817133 -->|method| 4e083208_d1cb_8c30_4934_6afea76257ab

Relationship Graph

Source Code

docs_src/custom_request_and_route/tutorial002_an_py310.py lines 9–21

class ValidationErrorLoggingRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            try:
                return await original_route_handler(request)
            except RequestValidationError as exc:
                body = await request.body()
                detail = {"errors": exc.errors(), "body": body.decode()}
                raise HTTPException(status_code=422, detail=detail)

        return custom_route_handler