text: const path = require('path');
  const express = require('express');
  const webpack = require('webpack');
  const webpackMiddleware = require('webpack-dev-middleware');
  const webpackHotMiddleware = require('webpack-hot-middleware');
  const config = require('./webpack.config.js');
  const bodyParser = require('body-parser');
  
  const isDeveloping = process.env.NODE_ENV !== 'production';
  const port = isDeveloping ? 3000 : process.env.PORT;
  const app = express();
  
  app.use(bodyParser.urlencoded({ extended: false }))
  
  // parse application/json
  app.use(bodyParser.json())
  
  if (isDeveloping) {
    const compiler = webpack(config);
    const middleware = webpackMiddleware(compiler, {
      publicPath: config.output.publicPath,
      contentBase: 'src',
      stats: {
        colors: true,
        hash: false,
        timings: true,
        chunks: false,
        chunkModules: false,
        modules: false
      }
    });
  
    app.use(middleware);
    app.use(webpackHotMiddleware(compiler));
    app.get('*', function response(req, res) {
      res.write(middleware.fileSystem.readFileSync(path.join(__dirname, 'dist/index.html')));
      res.end();
    });
  } else {
    app.use(express.static(__dirname + '/dist'));
    app.get('*', function response(req, res) {
      res.sendFile(path.join(__dirname, 'dist/index.html'));
    });
  }
  
  app.post('/endpoint', function(req, res){
    const res_data = JSON.stringify(req.body);
    console.log(res_data);
    res.send(req.body);
  });
  
  
  app.listen(port, '0.0.0.0', function onStart(err) {
    if (err) {
      console.log(err);
    }
    console.info('==> ?? Listening on port %s. Open up http://0.0.0.0:%s/ in your browser.', port, port);
  });
  