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import json
import paho.mqtt.client as mqtt
import sys
def on_connect(client, userdata, flags, rc):
client.subscribe("#") # Subscribe to all topics
sys.stderr.write("Connected with result code {}\n".format(rc))
sys.stderr.flush()
def on_message(client, userdata, msg):
msg_as_str = msg.payload.decode('utf-8')
try:
print("{}\t{}\t{}".format(msg.timestamp, msg.topic, json.loads(msg_as_str)))
sys.stdout.flush()
except Exception as e:
sys.stderr.write("Cannot parse message: '{}'\n".format(msg_as_str))
sys.stderr.flush()
if __name__ == "__main__":
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.connect("localhost", 1883, 60)
client.loop_forever()
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