Require js files from a directory with glob based on a file name.

b.js

// ./controllers/b.js

module.exports = {
  index: function(){
    console.log('b is here');
  }
};

index.js

// main file
var glob = require('glob');
var path = require('path');

// controller directory
var ctlPath = './controllers/*.js';

// including based on names
glob.sync(ctlPath).forEach(function (file) {
  var name = file.replace(/.\/controllers\/|.js/ig , '');
  GLOBAL[name] = require(path.resolve(file));
});

// calling index function inside file b.js
b.index();