simple-server.js

const path = require('path')
const express = require('express')
const webpack = require('webpack')
const webpackDevMiddleware = require('webpack-dev-middleware')
const webpackHotMiddleware = require('webpack-hot-middleware')
const config = require('./webpack.config.js')
const app = express()
const port = 8080
const compiler = webpack(config)
const middleware = webpackDevMiddleware(compiler, {
  publicPath: config.output.publicPath,
  stats: {
    colors: true,
    timings: true,
  },
})

console.log('Enabling webpack dev middleware')
app.use(middleware)

console.log('Enabling Webpack Hot Module Replacement (HMR)')
app.use(webpackHotMiddleware(compiler))

console.log('Redirecting...')
app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname, 'example/index.html'))
})

app.listen(port, '0.0.0.0', err => {
  if (err) {
    console.log(err)
  }
  console.info('==> 🌎 Server is now running at http://0.0.0.0:%s/', port)
})