The mqtt.receive event listens on the specified topic and is executed when a message is published to the specified topic.
Do not use reserved topics - api and apiz. For more information on reserved topics, see MQTT Interface
|Topic||String||Yes||The topic must match the standard MQTT topic format, wildcard + and # fields are permitted.|
|$(event.topic)||String||The topic that was published to.|
|$(event.from)||String||The identifier representing the email address or thing key associated with the connection that sent the message.|
|$(event.ts)||Timestamp||The timestamp that initiated this trigger.|
|$(event.payload)||Binary||The payload sent in the publish. If the payload can be converted to a string (from binary or hexadecimal representation), the payload will be converted to a string.|