Server Side Datastore

With Node.js we can use a variety of database engines such as MySQL, Postgres, MongoDB, and so on.

nedb is a MongoDB compatible in memory or on disk datastore that is quick and easy for us to work with without going through a big setup process so let's get a start with databases there.

In order to use it, we have to install it as we would any normal server side node module:

npm install nedb

Here is some quick code to show you how it works. See the nedb documentation for more.

// Database to store data, don't forget autoload: true
var Datastore = require('nedb');
var db = new Datastore({filename: "data.db", autoload: true});

// Create a JavaScript Object with data to store
var datatosave = {
	name: "Shawn",
	message: "Hello world"
// Insert the data into the database
db.insert(datatosave, function (err, newDocs) {
	console.log("err: " + err);
	console.log("newDocs: " + newDocs);

// Find all of the existing docs in the database
db.find({}, function(err, docs) {
	// Loop through the results, send each one as if it were a new chat message
	for (var i = 0; i < docs.length; i++) {
		console.log(docs[i].name + " " + docs[i].message);
Here is a full chat with database to save history example