I've looked around and not spotted information about best practice approaches regarding the use of the
mqtt in node.
There are two obvious approaches;
(a) In each flow where a particular message is needed, create a
mqtt in subscribe node. Hence subscribing many times to the same data in the same Node-Red configuration.
(b) Subscribe to each message only once and send the output to a
link out node. Re-use the message by consuming with as many
link in nodes as needed.
I was wondering which might be less resource intense.
Is there any 'best practice' guidance in this area?