Node-RED: Authenticating MQTT users in Node-RED

This documentation is part of the MQTT Server guide. You can view the complete guide here: How to connect Node-RED to the Mosquitto MQTT server.

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Managing MQTT user authentication is simple with a dedicated flow in Node-RED. You can find the "MQTT Authentication" flow directly from the Node-RED admin panel.

MQTT authentication flow

Within this authentication flow, look for the Users template node. This node contains an array where you can define credentials for each user. You can add as many users as your project requires.

Note: The node-red user is required for Node-RED to connect to the MQTT server. Be sure not to remove this user from your configuration.

MQTT users node