node-mongo

gistfile1.txt

var mongo = require("mongodb"), db = new mongo.Db("test", new mongo.Server("localhost", mongo.Connection.DEFAULT_PORT), {})

db.open(function(err, db) {
	if(err) {
		throw new Error(err)
	} else {
		db.collection("testing", function(err, collection) {
			if(err) {
				console.log(err.message)
			} else {
				//insert new user
				collection.save({
					name: 'amit',
					text: 'some text'
				})
				collection.find({}, {name: 1}).limit(1).toArray(function(err, users){
					user = users[0]
					if(err) {
						throw new Error(err)
					} else if(user) {
						user.pants = 'worn'
						console.log(user._id)
						collection.save(user, function(err, doc){
							if(err) {
								console.log(err.message)
							}
						})
					}
				})
			}
		})
	}
})