How to do a function if reveice then publish? about umqttbroker HOT 3 CLOSED

First processing can be done in the "onData" callback function (e.g. in the "OOFull" sample). It is called on each subscribed and received Topic. If you need it longer for processing, store a value in a status variable in this callback, check that in the main loop, and do processing there.

from umqttbroker.

Thank you for the Hint ...

i am sorry but i'm a beginner to Arduino Code ...

i tryed out with the OOFull example ...
there's a code line:
Serial.println:("received topic '"+topic ......

But it seems not to work? Serial monitor keeps empty? Only the Standart Messages like IP, Starting MQtt Broker etc...
If i understand right there should be all received messages?

from umqttbroker.

Yes, it should print any received topic, especially the counter values of the sample.

from umqttbroker.