MQTT Two way communication

Question

I am interested in making communications of commands between different MQTT clients and to perform the regarding actions on both end. Is it possible to have two way communication using MQTT? I am working on Raspberry PI.

Answer 1

Yes its possible by using different publisher and subscriber topic for same client. Also you need some handler on client side to act.

Answer 2

Not sure what you mean by two way communication. You have subscribers and publishers in Mqtt. You could have a subscriber sitting out there listening to a particular topic and have it react to certain messages.

The way you would interact with that subscriber is by a publisher. Have it send a message to that subscriber's topic it's listening on.