text: const mongoose = require('mongoose');
  
  // Connect to mongodb
  
  mongoose.connect('mongodb://heroku_k7s1m7j5:hb0ccn75stq24lirfft384tsu1@ds137686.mlab.com:37686/heroku_k7s1m7j5');
  
  mongoose.connection.once('open', function(){
    console.log('Connection has been made.');
  }).on('error', function(error){
    console.log('Connection error', error);
  });
  