import asyncio import logging from amqtt.client import ConnectException, MQTTClient from amqtt.mqtt.constants import QOS_1, QOS_2 # # This sample shows how to publish messages to broker using different QOS # Debug outputs shows the message flows # logger = logging.getLogger(__name__) config = { "will": { "topic": "/will/client", "message": b"Dead or alive", "qos": 0x01, "retain": True, }, } async def test_coro() -> None: C = MQTTClient() await C.connect("mqtt://test.mosquitto.org/") tasks = [ asyncio.ensure_future(C.publish("a/b", b"TEST MESSAGE WITH QOS_0")), asyncio.ensure_future(C.publish("a/b", b"TEST MESSAGE WITH QOS_1", qos=QOS_1)), asyncio.ensure_future(C.publish("a/b", b"TEST MESSAGE WITH QOS_2", qos=QOS_2)), ] await asyncio.wait(tasks) logger.info("messages published") await C.disconnect() async def test_coro2() -> None: try: C = MQTTClient() await C.connect("mqtt://test.mosquitto.org:1883/") await C.publish("a/b", b"TEST MESSAGE WITH QOS_0", qos=0x00) await C.publish("a/b", b"TEST MESSAGE WITH QOS_1", qos=0x01) await C.publish("a/b", b"TEST MESSAGE WITH QOS_2", qos=0x02) logger.info("messages published") await C.disconnect() except ConnectException as ce: logger.exception(f"Connection failed: {ce}") asyncio.get_event_loop().stop() if __name__ == "__main__": formatter = "[%(asctime)s] %(name)s {%(filename)s:%(lineno)d} %(levelname)s - %(message)s" formatter = "%(message)s" logging.basicConfig(level=logging.DEBUG, format=formatter) asyncio.get_event_loop().run_until_complete(test_coro()) asyncio.get_event_loop().run_until_complete(test_coro2())