in mqtt what is exactly topic and why we use "#" and "+" in topic,i have read somewhere that topic is like massage Que but am not getting how?
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ineev_teksun wrote:
in mqtt what is exactly topic and why we use "#" and "+" in topic,i have read somewhere that topic is like massage Que but am not getting how?
"#" and "+" are defined in MQTT protocol as "multi-level wildcard" and "single level wildcard":
ineev_teksun wrote:
in mqtt what is exactly topic and why we use "#" and "+" in topic,i have read somewhere that topic is like massage Que but am not getting how?
"#" and "+" are defined in MQTT protocol as "multi-level wildcard" and "single level wildcard":
but what topic is exactly ?
You can think of topic as a channel.
Typically the server would support many topics (channels), and a client can publish/subscribe to a few topics (channels) of interest.