Minimal babel boilerplate

.babelrc

{
  "presets": [ "es2015" ]
}

app.js

const express = require('express');

const app = express();
const port = 3000;

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(port, () => {
  console.log(`Example app listening on port ${port}!`);
});

package.json

{
  "dependencies": {
    "babel": "^6.5.2",
    "babel-preset-es2015": "^6.9.0",
    "babel-register": "^6.9.0",
    "express": "^4.13.4"
  }
}

start.js

require('babel-register');
require('./app');

import express from 'express';

const app = express();
const port = 3000;

app.get('/', (req, res) => res.send('Hello World!'));
app.listen(port, () => console.log(`Example app listening on port ${port}!`));

Nice !