gistfile1.js

const webpack = require('webpack')
const WebpackDevServer = require('webpack-dev-server')

// your wp config lives here
const config = require('./webpack.config')

new WebpackDevServer(webpack(config), {
    publicPath: config.output.publicPath,
    hot: true,
    historyApiFallback: true,
}).listen(1337, 'localhost', (err, result) => {
    if (err) {
        return console.log(err)
    }

    console.log('Listening at http://localhost:1337/')
})