//Mongoose Connection & Validation Process

mongoose.connect("mongodb://12.345.65.89:3000/db",
         {user: 'user', pass: 'p@ssword'},{ useNewUrlParser: true });

mongoose.connection.on('connected', function () {
     console.log('Mongoose connected!')
 });

mongoose.connection.on('error',function (err) {
     console.log('Mongoose default connection error');
});