edorgeville/setting-and-accessing-environment-variables-in-node-red.md

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Setting and accessing environment variables in node-red

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setting-and-accessing-environment-variables-in-node-red.md

Setting and accessing environment variables in node-red

Setting

echo "UUID=12345" > ~/env
sudo nano /lib/systemd/system/nodered.service
Add EnvironmentFile=/home/pi/env
sudo systemctl daemon-reload
sudo systemctl restart nodered

Accessing

In node-red, create a MQTT-in node
In the topic field, write $(UUID)

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