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JS client subscribes multiple topic [message #1748330]

Tue, 22 November 2016 10:27

yongh yang

Messages: 2
Registered: November 2016

Junior Member

Hi,
I am searching JS client for MQTT, and I have a question.
Does Paho JS client support subscribing multiple topic?
As jsdoc , the function client.subscribe(filter,subscribeOptions) only subscribe a topic. can I call subscribe function many times to subscribe many topic ?
anybody experience in Paho JS Client ?

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Re: JS client subscribes multiple topic [message #1748406 is a reply to message #1748330]

Tue, 22 November 2016 19:44

Benjamin Cabé

Messages: 201
Registered: July 2009
Location: Toulouse, France

Senior Member

You can call subscribe multiple times indeed, just like in many other client implementations.
Everything will end up being sent to your "onMessageArrived" callback, and thanks to the destinationName of the message, you can figure out what topic it was posted on.

My blog: http://blog.benjamin-cabe.com

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Re: JS client subscribes multiple topic [message #1748424 is a reply to message #1748406]

Wed, 23 November 2016 01:19

yongh yang

Messages: 2
Registered: November 2016

Junior Member

Thanks very much!
It's very important for me! There are many different topic path in my project.
Thanks for your suggestion, I will defined 'type' for ervery message to call the right function.

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