server.js

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

var devConfig = {
    publicPath: config.output.publicPath,
    hot: true,
    historyApiFallback: true,
    // It suppress error shown in console, so it has to be set to false.
    quiet: false,
    // It suppress everything except error, so it has to be set to false as well
    // to see success build.
    noInfo: false,
    stats: {
        // Config for minimal console.log mess.
        assets: false,
        colors: true,
        version: false,
        hash: false,
        timings: false,
        chunks: false,
        chunkModules: false
    },
    watchOptions: {
        poll: 1000
    }
};

new WebpackDevServer(webpack(config), devConfig)
    .listen(3000, 'localhost', function(err) {
        if (err) {
            console.log(err);
        }
        console.log('Listening at localhost:3000');
    });