20.03.2012 Dipl.-Inf. (FH) Johannes Hoppe

Getting started with Node.js and MongoDB on MS Azure

®

Hello

01

Johannes Hoppe IT-Consultant & Web Developer

www.johanneshoppe.de

JavaScript?

As a server side

language?

Executed inside

a database?

For a hardware-

accelerated

3D game?

Hosted on

WINDOWS?

Yes! .of course

Live Demo solartournament.org

solartournament.org

SDK for Node.js

02

PaaS / IaaS

Visual Studio 2010

Targets .NET, but also and now officially:

Java, PHP, Node.js… MongoDB

platform

Cloud

Event-driven Asynchronous I/O

JavaScript Google V8 engine

Server-side MIT License

www.windowsazure.com/en-us/develop/nodejs/

What you get › node.exe

› iisnode (native IIS module)

› NPM for Windows (package manager)

› […]

Live Demo / Windows PowerShell

› New-AzureService helloworld

› Add-AzureNodeWebRole

› Start-AzureEmulator -launch

server.js var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello world!'); }).listen(process.env.PORT);

Azure SDK for Node.js

Troubleshooter

Tricky Emulator › Webinstaller: Decide for IIS Express

› Start PowerShell with Admin Rights

Tricky Emulator › Check the Windows Event log

› Last resort: start node.exe manually

Deployment / Windows PowerShell

› Get-AzurePublishSettings

› Import-AzurePublishSettings filename.publishSettings

› Publish-AzureService -name UniqueName -location "North

Europe" -launch

Node.js Web Application Tutorial:

http://www.windowsazure.com/en-

us/develop/nodejs/tutorials/getting-started/

Roles & Storage

Windows Azure Compute

Web Role Worker Role VM Role

Windows Azure

Storage SQL Azure

Table / Queue / Blob

Azure Storage Explorer http://azurestorageexplorer.codeplex.com/

Supports blobs, queues and tables

MongoDB

03

“Microsoft has been working with 10gen

to provide MongoDB database

integration for Windows Azure,

including deployment packaging,

documentation, and code samples.” MSDN, December 2011: http://msdn.microsoft.com/en-us/library/gg441573.aspx

http://downloads.mongodb.org/azure/

AzureMongoDeploymentCmdlets.msi

PowerShell › Only once: Get-AzureMongoDBBinaries

› Add-AzureMongoWorkerRole

› Join-AzureNodeRoleToMongoRole WebRole1

› npm install mongodb

node-mongodb-native // the normal way

var mongoServer = new MongoServer("localhost", 27017, {});

mongoDb = new MongoDb(MONGO_DATABASE, mongoServer,

{ native_parser: false });

mongoDb.open(function () { });

On Azure var azureMongoEndpoints = new AzureMongoEndpoint('ReplicaSetRole', 'MongodPort');

azureMongoEndpoints.on('topologyChange', function () {

if (mongoDb != null) {

mongoDb.close();

mongoDb = null;

}

var mongoAzureServer = azureMongoEndpoints.getMongoDBServerConfig();

mongoDb = new MongoDb(MONGO_DATABASE, mongoAzureServer,

{ native_parser: false });

mongoDb.open(function () { });

});

azureMongoEndpoints.on('error', function (error) { throw error; }); }

Node.js Web Application

with Storage on MongoDB Tutorial:

https://www.windowsazure.com/en-

us/develop/nodejs/tutorials/web-app-with-mongodb/

Conclusion

04

Node.js on Azure? › Stable, works like expected

› Often fiddling on the startup scripts

› Installation binaries: slow upload

(a general Azure problem)

› Thumbs up to iisnode

MongoDB on Azure? › Development version (2.1.1-pre-) of MongoDB

› Not recommended for production.

› No Sharding!

› Works stable for me

Questions?

Thank you! blog.johanneshoppe.de

Next Speaking Engagements › 12.04.2012 – .NET UG Niederrhein: AOP / .NET

› 10.05.2012 – .NET UG Karlsruhe: NoSQL / .NET

› 14.05.2012 – .NET Developer Conference (DDC)

.Nürnberg: NoSQL / .NET (2 talks)

Picture credits

wave © THesIMPLIFY – Fotolia.com

Stressed businessman © Selecstock – Fotolia.com

Ausgewählter Ordner © Spectral-Design – Fotolia.com

Warnhinweis-Schild © Sascha Tiebel – Fotolia.com

Liste abhaken © Dirk Schumann – Fotolia.com