MQTT Demo

Step 1 : Fill in your own broker or use the one from the kind people at broker.mqttdashboard.com. (but be gentle...)

    var client = new Messaging.Client('broker.mqttdashboard.com', 8000, 'myclientid1234');
            

Step 2 : Have the javascript client subscribe to a topic.

    client.subscribe('testGaugeTopic/#', {qos: 2});  
            

Step 3 : Start sending messages by copying this into your shell...

    for i in {1..100}
    do
        mosquitto_pub -h broker.mqttdashboard.com -t testGaugeTopic/liveData --qos 2 -m "$(((RANDOM%6500)+1))|$(((RANDOM%120)+1))|40.69847032728747|-73.9514422416687";
    done    
            

Or download this shell script for some dummy data