INNER CODE UNIT · Python

send_with_msgpack

florimondmanca/msgpack-asgi · src/msgpack_asgi/_middleware.py:136

    async def send_with_msgpack(self, message: Message) -> None:
        if not self._should_encode_from_json_to_msgpack:
            await self._send(message)
            return

        if message["type"] == "http.response.start":
            headers = Headers(raw=message["headers"])
            if headers["content-type"] != "application/json":
                # Client accepts msgpack, but the app did not send JSON data.
                # (Note that it may have sent msgpack-encoded data.)
                self._should_encode_from_json_to_msgpack = False
                await self._send(message)
                return

            # Don't send the initial message until we've determined how to
            # modify the outgoing headers correctly.
            self.initial_message = message

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