hot-reload-server.js

var webpack = require('webpack');
var WebpackDevServer = require('webpack-dev-server');
var config = require('./webpack.config');

var options = { publicPath: config.output.publicPath, hot: true };
var server = new WebpackDevServer(webpack(config), options);
server.listen(3000, '0.0.0.0', function (err, result) {
  if (err) return console.log(err);
  console.log('Listening at 0.0.0.0:3000');
});