Simple server in Express.js for create-react-app build copy

server.js

const express = require('express');
const bodyParser = require('body-parser')
const path = require('path');
const app = express();

app.use(express.static(path.join(__dirname, 'build')));

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

app.listen(process.env.PORT || 8080);