index.js

// Other imports
require('dotenv').config();
const application = require('./dist');
var fs = require('fs');
var util = require('util');
var log_file = fs.createWriteStream(__dirname + '/debug.log', {flags : 'w'});
var log_stdout = process.stdout;

console.log = function(d) { //
  log_file.write(util.format(d) + '\n');
  log_stdout.write(util.format(d) + '\n');
};

module.exports = application;

if (require.main === module) {
  // Run the application
  const config = {
    rest: {
      port: +(process.env.PORT || 3001),
      host: process.env.HOST,
      // The `gracePeriodForClose` provides a graceful close for http/https
      // servers with keep-alive clients. The default value is `Infinity`
      // (don't force-close). If you want to immediately destroy all sockets
      // upon stop, set its value to `0`.
      // See https://www.npmjs.com/package/stoppable
      gracePeriodForClose: 5000, // 5 seconds
      openApiSpec: {
        // useful when used with OpenAPI-to-GraphQL to locate your application
        setServersFromRequest: true,
      },
    },
  };
  application.main(config).catch(err => {
    console.error('Cannot start the application.', err);
    process.exit(1);
  });
}