var test = [
'1': {test: 1},
'2': {test: 2}
];
Test.insert({
object: test
});
var MongoClient = require('mongodb').MongoClient;
MongoClient.connect('mongodb://localhost:27017/test', function(err, db) {
var col = db.collection('collectionName');
col.insertMany([{a:1}, {a:2}], function(err, r) { ... });
});