Programmatically set functionGlobalContext

[bigbean17]

Hi,

I'm trying to import a third party library to my node-red project. I could manually set functionGlobalContext and it worked. functionGlobalContext: {os: require('os)} and import it by const os = global.get('os')

But is it possible to do this programmatically? What I tried is that

const fs = require('fs');

// Path to settings file
const filePath = '/root/.node-red/settings.js';

// Read the settigns file using require
const config = require(filePath);

config.credentialSecret = "xx"
config.editorTheme.projects.enabled = true;
config.functionGlobalContext.os = "require('os')";

The problem with above code is that if I import it by global.get('os'), it will give me a string of "require('os')".

The reason why I need to do this programmatically is that I have thousands of devices needs to be setup, it is impossible to manually set functionGlobalContext.

Any help would be appreciated.

Thank you!

[bakman2]

See the documentation on how to import modules within a function node.

But are you certain you need to import 'fs' ? There are already build in nodes for files and you can install dedicated nodes for file operations, like fs-ops

[bigbean17]

Sorry for the confusion, the code snippet above is the script that setup the node-red.

So it will read the existing "settings.js" and set the value such as "credentialSecret", then write the edited config back to "settings.js"

I will have a try with your solution, thanks for helping!