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Sasha Goldshtein @goldshtnCTO, SELA Group blog.sashag.netJavaScript, Meet Cloud: Node.js on Windows Azure

Node.js?

Lightweight JavaScript server with a rich module ecosystem running on Azure as a web site or a service

The New Microsoft

You can run a Node.js web service on an Ubuntu VM on Windows Azure that uses Redis for caching, MongoDB for sessions, and an SQL Database for most models. Oh, and you can integrate it with a Windows Store or iPhone app.

What is Node.js

JavaScript on the serverUses the Google V8 engineHigh-speed JavaScript JIT and GC

Hundreds of modules, vibrant ecosystemPackage manager, including dependenciesHTTP(S), TCP, UDP server and clientBindings and ORMs for virtually every DBMVC framework (express)

Everything is open source

Why Node?

Cross-platformIt’s the next hip thing (after RoR)Asynchronous but no explicit concurrencyRapid developmentTiny footprint

Hello, Node

var http = require('http');

var server = http.createServer(function(req, res) { res.writeHead(200, {'Content-Type’: 'text/plain'}); res.end('Hello, Node!\n');});

server.listen(8080);

express

var express = require('express');var app = express.createServer();

app.get('/hello', function (req, res) { res.sendfile('hello.htm');});

app.post('/echo', function (req, res) { res.end('You said: ' + req.body.message);});

app.listen(8080);

nstore

var nstore = require('nstore');var messages = nstore.new('messages.db', ...);

messages.save(msg.id, msg, function (err) ...);

messages.all(function (err, results) { ...});

messages.find({ user: 'Sasha' }, ...);

Node on Azure Web Sites

Put your code in app.js or server.jsDeploy using Git, Mercurial, TFS, FTP, WebDeploy, DropboxUse modules freely with package.jsonDebug your website with node-inspectorNEW

msnodesql

var sql = require('msnodesql');

sql.query(conn_str, 'SELECT * FROM Messages', function (err, results) { if (!err) ... });

sql.queryRaw(conn_str, 'INSERT INTO Messages ...');

Node with SQL Database

Create an SQL databaseGet a connection stringOpen the firewall (if testing from premises)Node away!

Shared DB with Mobile Services

While we’re at it …Windows Azure Mobile Services makes implementing backends a breeze

You can share a DB

var table = MobileService.GetTable<Message>();

var messages = table.Where( m => m.User == "Sasha").ToList();

await table.InsertAsync(new Message(...));

Node with Table Storage

Windows Azure Table Storage is a lightweight, super-cheap, NoSQL data store

Rows have dynamic propertiesSingle primary key (index)

var q = azure.TableQuery.select().from('messages');

tableService.queryEntities( q, function (err, results) ...);

tableService.insertEntity('messages', newMsg, ...);

Node on Azure Virtual Machines

Install whatever you wantPick from Windows or Linux distros

Microsoft open VMDepot offers dozens of images

We’ll use MongoDB on UbuntuAnd Mongoose for an ORMvar db = mongoose.createConnection(...);

var Message = db.model('Message', schema);

Message.find(function (err, results) ...);

Node Editor in The Cloud

Visual Studio Online “Monaco”NEW is a cloud IDE for your Node/ASP.NET Azure web sites

QuestionsSasha Goldshtein @goldshtnCTO, SELA Group blog.sashag.net