How do I implement MQTT in my application?

How do I implement MQTT in my application?

To implement MQTT, you'll need to choose an MQTT broker, set up your client, and define your topics. Do you have a specific programming language in mind?

I'm using Python. What libraries should I use?

For Python, you can use the Paho MQTT library. It's easy to use and well-documented. Would you like a code example?

Yes, please provide a simple code example.

Here's a basic example:

import paho.mqtt.client as mqtt

# Callback when the client receives a CONNACK response from the server
def on_connect(client, userdata, flags, rc):
    print('Connected with result code ' + str(rc))
    client.subscribe('test/topic')

# Callback when a message is published
def on_message(client, userdata, msg):
    print(msg.topic + ' ' + str(msg.payload))

client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message

client.connect('mqtt.eclipse.org', 1883, 60)
client.loop_forever()

This connects to a public broker and subscribes to a topic.