Android Question How clear Retain message in mqtt?

D

darabon

Active Member
Hi,
According to the below link,

How to clear ALL retained mqtt messages from Mosquitto?

I've seen the mosquitto_pub -h [server] -r -n -t [XYZ] syntax for clearing out one off messages. My problem is the device developers have posted a lot of garbage messages. I have a Java/Paho code...
stackoverflow.com

We have to send the null byte to relate the topic to clear retain message
But in B4a, when I send empty message to clear it, does not happening
Please help me
 
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