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34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
import paho.mqtt.client as mqtt
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import os
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HOST = os.environ.get('MQTT_HOST', 'localhost')
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print('Connecting to %s' %HOST)
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# The callback for when the client receives a CONNACK response from the server.
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def on_connect(client, userdata, flags, rc):
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print("Connected with result code "+str(rc))
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# Subscribing in on_connect() means that if we lose the connection and
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# reconnect then subscriptions will be renewed.
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#
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# QOS: 0) no confirmation; 1) at least once; 2) at most once
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client.subscribe("/gsi/#", qos=2)
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# The callback for when a PUBLISH message is received from the server.
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def on_message(client, userdata, msg):
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print(msg.topic+" "+str(msg.payload))
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client = mqtt.Client(client_id='mqtt-server', clean_session=False)
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client.on_connect = on_connect
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client.on_message = on_message
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client.connect(HOST, 1883, 60)
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# Blocking call that processes network traffic, dispatches callbacks and
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# handles reconnecting.
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# Other loop*() functions are available that give a threaded interface and a
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# manual interface.
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client.loop_forever()
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