Last will and testament publication
If an MQTT client connection unexpectedly ends, you can configure MQ Telemetry to send a "last will and testament" publication. Predefine the content of the publication, and the topic to send it to. The "last will and testament" is a connection property. Create it before connecting the client.
If an MQTT client connection unexpectedly ends, you can configure MQ Telemetry to send a "last will and testament" publication. Predefine the content of the publication, and the topic to send it to. The "last will and testament" is a connection property. Create it before connecting the client.