Android Question MQTT Chat Room

fanfalveto · Oct 28, 2018

I have 2 mobile applications with two users and the b4j application with another user (users created in cloudmqtt.com).
Is it possible to send messages from user to user? one to one, not one at all?

client.Publish2("all", CreateMessage(Body),2,True)

runs ok one to all

client.Publish2("movil", CreateMessage(Body),2,True)

don´t send message to movil user
thnak you

Erel · Oct 29, 2018

You are confusing the topic name and the MQTT user name. They are not related.

Each MQTT client can subscribe to any number of topics.
You can subscribe to a topic based on your user name. This will allow you to send messages to the "user name topic".

fanfalveto · Nov 1, 2018

Thank you
I will read more about it to see if I can fix it

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