Updating node-red settings.js and restarting node-red.

[Ajay K]

I am trying to add a custom object to the node-red setings.js file, in the globalfunctioncontext area of the settings.js file. Here are a few questions related to that and was hoping to get some guidance related to it.

1) I am assuming the settings.js file under the \var\config\app\install\development\settings.js file is the one I am supposed to update?

2) If the location of the setting.js file mentioned above is the right one, I am assuming this is protected from firmware upgrades?

3) When I make changes to the settings.js file, do I need to restart the node-red application or is there a file watcher setup by node-red application that would cause the node-red to restart on its own? If not what is the best way to restart node-red?

Thanks,
Ajay

[Ajay K]

Any thoughts on this or if this has been addressed in the forum, can you please point me to this forum thread.

Thanks,
Ajay

[Jeff Hatch]

1) I am assuming the settings.js file under the \var\config\app\install\development\settings.js file is the one I am supposed to update?

If you have not installed an app from DeviceHQ, that is correct.

2) If the location of the setting.js file mentioned above is the right one, I am assuming this is protected from firmware upgrades?

This file is not overwritten by upgrades. The only field that gets overwritten is the listen port for Node-RED.

3) When I make changes to the settings.js file, do I need to restart the node-red application or is there a file watcher setup by node-red application that would cause the node-red to restart on its own? If not what is the best way to restart node-red?

You should restart Node-RED. There is an init script “/etc/init.d/node-red” you can use to restart it: /etc/init.d/node-red restart

Jeff

[Ajay K]

Thanks Jeff for taking the time to respond. With respect to question no.3, you mentioned I could use “/etc/init.d/node-red restart”. Do I need to run it from the SSH prompt? I am a little lost when it comes to Linux based OS.

Is this something that can be made available to run from the Admin screen as a feature, to restart node-red, that way if it needs to be done remotely as well, it can be done, without SSHing into the box or the equivalent to run the script?

Thanks,
Ajay.

[Jeff Hatch]

Ajay,

You can use the command at the SSH prompt or you can go into the Web UI, got to the Apps page, disable Node-RED and then re-enable it.

Jeff

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