I'm trying to use an MQTT broker to broadcast some data. For flexibility, I want to set the MQTT variables in the system environment and then read them in my Node-Red flow. It used to work (some years ago) but no longer does. Here's a simple example showing this. Working context: Node-RED versi…

OK -- success. Here are the details: (1) I've now modified the EnvironmentFile contents to remove export from the beginning of each line. user@RP01:~$ cat ~/.node-red/EnvironmentFile MQTT_BROKER=broker.hivemq.com MQTT_PORT=1883 MQTT_CLIENT_ID=Client007 MQTT_TOPIC=ViewMe/Meter01 MQTT_NAME=MyName (…

jbudd 19 March 2024 16:47 16

Unfortunately the Node-red documentation on environment variables is wrong.

https://discourse.nodered.org/t/error-in-user-guide/86486

Topic		Replies	Views
MQTT and Environment Variables General	26	3309	29 March 2020
Using ENV vars to set MQTT server General docker , mqtt	3	156	7 March 2023
Using environment variable as password for "MQTT in" node General	5	1336	8 July 2020
Cant find process.env settings General	3	1072	21 May 2019
Assign IP and Port of MQTT node dynamically General	14	1938	11 November 2020

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Accessing environment variables

Related topics