Node-RED: Authenticating MQTT users in Node-RED

This documentation is part of the MQTT server guide. View the full guide here: How to connect Node-RED to Mosquitto MQTT server.

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

MQTT authentication flow

Inside this authentication flow, look for the Users template node. This node holds an array where you can define credentials for each user. You have the flexibility to add as many users as your project needs.

Note: The node-red user is essential for Node-RED's connection to the MQTT server. Make sure not to remove this user from your configuration.

MQTT users node