webpack.dev.server.js

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

var devServer = new WebpackDevServer(webpack(config), {
  publicPath : config.output.publicPath,
  hot : true,
  historyApiFallback : true,
  //proxy : {
  //  "*" : 'http://localhost:8080'
  //}
});

devServer.listen(3000, 'localhost', function (err) {
  if (err) {
    console.log(err);
  }

  console.log('Listening at localhost:3000');
});