const express = require('express'); const webpack = require('webpack'); const webpackDevMiddleware = require('webpack-dev-middleware'); const app = express(); const config = require('./webpack.config.js'); const compiler = webpack(config); app.use( webpackDevMiddleware(compiler, { publicPath: config.output.publicPath, }) ); app.listen(3000, function () { console.log('Example app listening on port 3k'); });