text: /* eslint consistent-return:0 import/order:0 */
  
  const express = require('express');
  const logger = require('./logger');
  
  const argv = require('./argv');
  const port = require('./port');
  const setup = require('./middlewares/frontendMiddleware');
  const isDev = process.env.NODE_ENV !== 'production';
  const ngrok =
    (isDev && process.env.ENABLE_TUNNEL) || argv.tunnel
      ? require('ngrok')
      : false;
  const { resolve } = require('path');
  const app = express();
  
  // If you need a backend, e.g. an API, add your custom backend-specific middleware here
  // app.use('/api', myApi);
  
  // In production we need to pass these values in instead of relying on webpack
  setup(app, {
    outputPath: resolve(process.cwd(), 'build'),
    publicPath: '/front-end-challenge-blue-stack/',
  });
  
  // get the intended host and port number, use localhost and port 3000 if not provided
  const customHost = argv.host || process.env.HOST;
  const host = customHost || null; // Let http.Server use its default IPv6/4 host
  const prettyHost = customHost || 'localhost';
  
  // use the gzipped bundle
  app.get('*.js', (req, res, next) => {
    req.url = req.url + '.gz'; // eslint-disable-line
    res.set('Content-Encoding', 'gzip');
    next();
  });
  
  // Start your app.
  app.listen(port, host, async err => {
    if (err) {
      return logger.error(err.message);
    }
  
    // Connect to ngrok in dev mode
    if (ngrok) {
      let url;
      try {
        url = await ngrok.connect(port);
      } catch (e) {
        return logger.error(e);
      }
      logger.appStarted(port, prettyHost, url);
    } else {
      logger.appStarted(port, prettyHost);
    }
  });
  