How To Use npm Libraries Within EFS Studies

[ewdeg98]

Hi, I'm wishing to add some npm libraries to my EFS code to help with some tasks.

I created a node.js project and added the libraries with npm install ...
Does anybody know how I can then import the npm library into my EFS study?

I have tried

import { Observable } from '...; 

which gives the error

import declarations may only appear at top level of a module

I have also tried

var Observable = require('...'); 

which gives the error

require is not defined

So is using npm libraries even possible within EFS studies? and if so what is the proper way to import the library?

Thanks

[LetUsLearn]

I'm not sure if I understand your question, but I'm going to guess that you have functions that you want to save in a EFS library so that you can call them from an EFS script...is that right? If it is, you could copy the functions into the eSIgnal script editor and save it as a library (.efsLib) in the Interactive Data FunctionLibrary folder. Then declare a global variable as follows:
var LibEFSAT = addLibrary("EFSATLib.efsLib"); Afterwards you can call your library functions in your EFS as follows: LibEFSAT.positionsFullCallback(); I hope this helps!