This is a very simple example of how to insert a document in MongoDB from Node.js

I recently needed to use MongoDB with Node.js on a project, and finding a barebones example of how to make them work together was more difficult than anticipated.

It's nothing more than what's in the excellent Getting Started with MongoDB and Node.js presentation, but it's kind of hard to copy-paste from an image :-)

var mongo = require('mongodb');

db = new mongo.Db('mydb', new mongo.Server("", 27017, {}), {});, db) {
    db.collection('sample', function(err, collection) {
        doc = {
            "prop1" : "val",
            "prop2" : {
                a : 1,
                b : 2
        collection.insert(doc, function() {

For this example to work, you need to have MongoDB installed, started and listening on the default port. You also need to add the mongodb module to your node installation (npm install mongodb worked for me).

Another good simple example of using MongoDB with Node.js can be found here. I don't find the notation quite as clear, but that's just my personal preference. It works just fine.

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09 June 2011