Android Tutorial MQTT Topic best practice

Great tutorial about building MQTT topic:

MQTT Topics, Wildcards, & Best Practices - MQTT Essentials: Part 5

Learn about MQTT Topics naming conventions, MQTT $SYS topics, MQTT Prefix, MQTT Topic Wildcards, and more in this MQTT Essentials article.

www.hivemq.com

 

[Hamied Abou Hulaikah]

What I conclude from that tutorial is a serious thing: it is the hash topic subscription:

mqtt.subscribe("#")

This will receive all publications published by any connected client!!! and overwhelm the broker & clients.