text: var http = require('http');
  var app = require('./app');
  require('dotenv').config();
  const port = process.env.PORT || 4000;
  const server = http.createServer(app);
  let throng = require('throng');
  console.log('The server is running in ' + port + ' port.');
  
  let workers = process.env.WEB_CONCURRENCY || 1;
  
  const start = () => {
      server.listen(port);  
  }
  
  throng({
  	workers,
  	start
  });
      