const mongodb = require('mongodb');

// Set up array of objects
let o = {
    name: 'Joe'
};
let a = [o, o, o];

// Insert into the database
mongodb.MongoClient.connect('mongodb://localhost:27017/database', (err, db) => {
    let collection = db.collection('someCollection');
    collection.insertMany(a).catch((error) => {
        console.log(error.message);
    });
});