ApplicationExperienceEdge 1.0.0


The MQTT Node allows a workflow to publish a message to the configured topic of the Losant MQTT broker, Edge Agent Broker (edge only), or an MQTT Integration.


Node Properties

There are three properties to configure for the MQTT Node:


You can specify the MQTT broker on which to publish the topic. By default, this is the Losant MQTT broker, but you may also choose the Edge Agent Broker (edge only), or an MQTT Integration.

In Edge Agent versions 1.17.0 or higher, the Edge Agent’s local MQTT broker is available as an option. You can learn more in the Edge Agent broker documentation.

Topic Template

A string template for the topic to publish the message on. This must render to a valid topic name, and depending on the broker, there may be additional rules around the topic’s format.

Message Template

An optional string template. If no message is given, a blank message is published on the configured topic.

Throttling And Limits

The MQTT Node (when sending messages to the Losant cloud broker) has the same throttling and data size limit rules as using the broker directly.
The node is limited to 30 calls in a 15-second window (per topic), on average, 2 calls per second.
Additionally, MQTT Node allows for sending a maximum message size of 256KB to the Losant cloud broker.