Can an MQTT broker be configured not to echo messages on a topic?

Internet of Things IoT Frameworks . 2 years ago

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_x000D_ _x000D_ If an mqtt client publishes to and subscribes to a topic, is it possible to convince the broker not to echo message sent by the client back to the client that published the message? For example, if there are four clients (A, B, C, D) that are subscribed to and publishing to topic "foo", and client A publishes a message, I would like the message to be received by clients B, C, and D, but not echoed back to client A.

Posted on 16 Aug 2022, this text provides information on IoT Frameworks related to Internet of Things. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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manpreet Tuteehub forum best answer Best Answer 2 years ago
_x000D_ The MQTT protocol provides publish/subscribe pattern so every topic you subscribed, you receive messages sent on it. The MQTT broker implementation isn't fully standardized : brokers can be different due to different supported features. Until today I didn't head about a broker with such a feature. Of course it could be possible to implement but it depends on broker developers. Paolo.
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