const express = require('express'); const app = express(); const PORT = process.env.PORT || 5000; app.use(express.static(__dirname + '/../react-ui/build')); app.get('/api', function (req, res) { res.set('Content-Type', 'application/json'); res.send('{"message":"Hello from the custom server!"}'); }); app.listen(PORT, function () { console.log(`Listening on port ${PORT}`); });