__author__ = 'Gaston C. Hillar'
import time
import paho.mqtt.client as mqtt
import json
command_key = "command"
topic = "iot-python-gaston-hillar/temperature"
def on_connect(client, userdata, flags, rc):
print("Connected to the {0} topic".
format(topic))
subscribe_result = client.subscribe(topic)
publish_result_1 = client.publish(
topic=topic,
payload="Listening to messages in the Paho Python Client")
publish_result_2 = publish_command(
client,
topic,
"print_temperature_fahrenheit",
"temperature_fahrenheit",
45)
publish_result_3 = publish_command(
client,
topic,
"print_information_message",
"text",
"Python IoT")
def on_message(client, userdata, msg):
if msg.topic == topic:
print("I've received the following message: {0}".format(str(msg.payload)))
def publish_command(client, topic, command_name, key, value):
command_message = json.dumps({
command_key: command_name,
key: value})
result = client.publish(topic=topic,
payload=command_message)
return result
if __name__ == "__main__":
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.connect(host="iot.eclipse.org",
port=1883,
keepalive=60)
client.loop_forever()
