def subscribe_to_core()

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


def subscribe_to_core(socket_io_app):
    ipc_client = awsiot.greengrasscoreipc.connect()

    subscribe_operation = ipc_client.new_subscribe_to_iot_core(
        stream_handler=SubscribeTopicHandler(socket_io_app)
    )
    subscribe_operation.activate(
        request=model.SubscribeToIoTCoreRequest(
            topic_name="{}/subscribe".format(os.environ["AWS_IOT_THING_NAME"]),
            qos=model.QOS.AT_LEAST_ONCE,
        )
    )