You can configure Node-RED using a settings file.
When Node-RED starts, it looks for a file called
settings.js in your Node-RED
~/.node-red. If it does not find one there, it will copy in a
default settings file to that directory and use it.
--settings command-line argument can be used when starting
Node-RED to point at a different file.
If you have not yet run Node-RED and want to edit the settings file, you can copy the default settings file in manually from here.
If you are not sure which settings file Node-RED is using, you should check the log output when Node-RED starts up. It will log the full path to the file:
22 Jun 12:34:56 - [info] Settings file : /Users/nol/.node-red/settings.js
The default settings file comes with many options commented out. For example, the option to format your flow file to make it easier to read:
To enable that option, remove the
// at the start of the line.
If you add a new option to the file, be sure to add a comma to separate it from any options before or after it.
If there is a syntax error in the file, Node-RED will not be able to start. The log output will indicate where the error is.