How to test the `Mosquitto` server?

Question

I am new to Mosquitto and MQTT, I downloaded the Mosquitto server library but I do not know how to test it.

Is there any way to test the Mosquitto server?

Answer 1

In separate terminal windows do the following:

1. Start the broker:

   mosquitto
   

2. Start the command line subscriber:

   mosquitto_sub -v -t 'test/topic'
   

3. Publish test message with the command line publisher:

   mosquitto_pub -t 'test/topic' -m 'helloWorld'
   

As well as seeing both the subscriber and publisher connection messages in the broker terminal the following should be printed in the subscriber terminal:

test/topic helloWorld