text: var express = require('express');
  var router = express.Router();
  
  /* pull all env into a string */
  let strValue  = '';
  
  Object.keys(process.env).forEach( function (key) {
    strValue += key + '=' + process.env[key] + '\n';
  });
  
  /* GET home page. */
  router.get('/', function(req, res, next) {
    res.render('index', { title: 'env values' , text: strValue });
  });
  
  module.exports = router;
  