Method handle_user_exception

src/quart/app.py:1034–1060

Handle an exception that has been raised. This should forward :class:`~quart.exception.HTTPException` to :meth:`handle_http_exception`, then attempt to handle the error. If it cannot it should reraise the error.

(
        self, error: Exception
    )

            return await self.ensure_async(handler)(error)  # type: ignore[return-value]

    async def handle_user_exception(
        self, error: Exception
    ) -> HTTPException | ResponseReturnValue:
        """Handle an exception that has been raised.

        This should forward :class:`~quart.exception.HTTPException` to
        :meth:`handle_http_exception`, then attempt to handle the
        error. If it cannot it should reraise the error.
        """
        if isinstance(error, BadRequestKeyError) and (
            self.debug or self.config["TRAP_BAD_REQUEST_ERRORS"]
        ):
            error.show_exception = True

        if isinstance(error, HTTPException) and not self.trap_http_exception(error):
            return await self.handle_http_exception(error)

        blueprints = []
        if has_request_context():
            blueprints = request.blueprints
        elif has_websocket_context():
            blueprints = websocket.blueprints

        handler = self._find_error_handler(error, blueprints)
        if handler is None:
            raise error
        return await self.ensure_async(handler)(error)  # type: ignore[return-value]

    async def handle_exception(self, error: Exception) -> ResponseTypes:
        """Handle an uncaught exception.