Get the path of the node_modules folder in your scripts or CLI or package.json. This is useful when you are building a library that can either be used as an npm dependency or directly, see this question on SO.

You can add a parameter in order to look for a specific module. This is useful when npm creates multiple node_modules folder for conflicts reasons.

Installation

$ npm install node_modules-path --save

Test

$ npm test

This project has been battle tested on Silex website builder

Access node_modules in package.json

Use it in your packge.json like this:

"name": "my-super-project",
"scripts": {
  "build": "cp -R `node_modules`/font-awesome/fonts/* dist/fonts/", <=== this will be executed as cp -R /path-to-your-node_modules/or-the-node_modules-of-a-parent/font-awesome/fonts/* dist/fonts/

With a specific module name as a param:

"scripts": {
  "test": "echo  `node_modules` can differ from `node_modules module1`", <=== this will be executed as cp -R /path-to-your-node_modules/or-the-node_modules-of-a-parent/font-awesome/fonts/* dist/fonts/

node_modules folder path from another nodejs script

const node_modules = require('node_modules-path');
console.log('node module path for this project:', node_modules());

This is especially useful to serve fonts in an express app

app.use('/fonts', express.static(Path.resolve(node_modules(), 'font-awesome/fonts/')));
// node_modules() will return the path to your node_modules or to the node_modules of a parent

With a specific module name as a param, which is safer:

app.use('/fonts', express.static(Path.resolve(node_modules('font-awesome'), 'font-awesome/fonts/')));
// node_modules('font-awesome') will return the path to your node_modules or to the node_modules of a parent