server.js

// server.js
// where your node app starts
// require('dotenv').config();
var dotenv=require('dotenv');
var compression = require('compression');
var cors = require('cors');
var express = require('express');
var nocache = require('node-nocache');
var http=require('http');

const result = dotenv.config()
 
if (result.error) {
  throw result.error
}
 
console.log(result.parsed)

var app = express();

// compress our client side content before sending it over the wire
app.use(compression());


// https://github.com/mingchen/node-nocache
app.use('/manifest.json', nocache, function (request, response) {
  response.sendFile(__dirname + '/public/manifest.json');
});

// http://expressjs.com/en/starter/static-files.html
app.use('/',express.static('test'));

console.log('port',process.env.PORT)
var listener = app.listen(process.env.PORT, function () {
  console.info(`Node Version: ${process.version}`);
  console.log('Node Server listening on port ' + listener.address().port);
});