server.js

import path from 'path';  
import express from 'express';  
import webpack from 'webpack';  
import webpackMiddleware from 'webpack-dev-middleware';  
import config from '../../webpack.config.js';

import bodyParser from 'body-parser';
import chalk from 'chalk';
import helmet from 'helmet';
import compression  from 'compression';
import PrettyError from 'pretty-error';
import morgan from 'morgan';
import 'better-log/install';

const app = express();  
const env = process.env.NODE_ENV !== 'production' ? 'dev' : 'prod';
const host = process.env.HOST || '0.0.0.0';
const port = parseInt(process.env.PORT || '3456', 10);
const compiler = webpack(config(env));

const pe = new PrettyError();
pe.start();

app.use(helmet());
app.use(compression());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(morgan('combined'));

app.use(express.static(__dirname + '../../dist'));  
app.use(webpackMiddleware(compiler));

app.get('*', function response(req, res) {  
  res.sendFile(path.join(__dirname, '../../dist/index.html'));
});

app.listen(
  port, host,
  () => console.log(`Server running on ${chalk.green(host)}:${chalk.green(port)}`)
);