def on_stream_event()

in src/backend/app.py [0:0]


    def on_stream_event(self, event: model.IoTCoreMessage) -> None:
        """
        Invoked when a SubscriptionResponseMessage is received.
        """
        payload = {"payload": json.loads(event.message.payload.decode())}

        self.socket_io.emit("message", payload)
        logger.info("message sent from SubscribeTopicHandler!")