Let's face it, writing MongoDB validation, casting and business logic boilerplate is a drag. That's why we wrote Mongoose.
const mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/test');
const Cat = mongoose.model('Cat', { name: String });
const kitty = new Cat({ name: 'Zildjian' });
kitty.save().then(() => console.log('meow'));
Mongoose provides a straight-forward, schema-based solution to model your application data. It includes built-in type casting, validation, query building, business logic hooks and more, out of the box.