12factor Combined .env Sample - /app/lib/config.js

config.js

var config = require('12factor-config'),
    path = require('path'),
    fs = require('fs');

// load .env file from relative ../.env
var envFile = path.join(__dirname, '../', '.env');
if (fs.existsSync(envFile)) {
	var env = require('node-env-file');
	env(envFile, { overwrite: true});
}

// Load 12factor config
var cfg = config({/*...*/});

module.exports = exports = cfg;