import paho.mqtt.client as mqtt
import ssl

broker = "broker.hivemq.com"
port = 1883
topic = "si-labs"

# This is the Subscriber
def on_connect(client, userdata, flags, rc, properties):
    print("Connected with result code: " + str(rc))
    print("Subscribing to topic: ", topic)
    client.subscribe(topic)

def on_message(client, userdata, msg):
    print("Received message: ", str(msg.payload.decode("utf-8")))

client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2)

client.on_connect = on_connect
client.on_message = on_message

if port == 8883:
    client.tls_set(tls_version=ssl.PROTOCOL_TLSv1_2)
    
client.connect(broker, port, 60)

client.loop_forever()