This talk concentrates on Microsoft's cloud platform, called Azure. Johannes gives an introduction to the new platform and speaks about its possibilities and limitations. By utilizing the Windows Azure SDK for Node.js he is going to demonstrate a simple JavaScript-driven browser game that bases on Node.js and MongoDB.

1. Getting started
with Node.js and MongoDB on MS Azure
®
20.03.2012
Dipl.-Inf. (FH) Johannes Hoppe

2. 01
Hello

3. Johannes Hoppe
IT-Consultant & Web Developer
www.johanneshoppe.de

4. JavaScript?

5. As a server side
language?

6. Executed inside
a database?

7. For a hardware-
accelerated
3D game?

8. Hosted on
WINDOWS?

9. Yes!
.of course

10. Live Demo
solartournament.org

11. solartournament.org

12. 02
SDK for Node.js

13. platform
Cloud
PaaS / IaaS
Visual Studio 2010
Targets .NET, but also and now officially:
Java, PHP, Node.js… MongoDB

14. Event-driven Asynchronous I/O
JavaScript Google V8 engine
Server-side MIT License

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

16. What you get
› node.exe
› iisnode (native IIS module)
› NPM for Windows (package manager)
› […]

17. Live Demo / Windows PowerShell
› New-AzureService helloworld
› Add-AzureNodeWebRole
› Start-AzureEmulator -launch

18. 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);

19. Azure SDK for Node.js
Troubleshooter

20. Tricky Emulator
› Webinstaller: Decide for IIS Express
› Start PowerShell with Admin Rights

21. Tricky Emulator
› Check the Windows Event log
› Last resort: start node.exe manually

22. Deployment / Windows PowerShell
› Get-AzurePublishSettings
› Import-AzurePublishSettings filename.publishSettings
› Publish-AzureService -name UniqueName -location "North
Europe" -launch

23. Node.js Web Application
Tutorial:
http://www.windowsazure.com/en-
us/develop/nodejs/tutorials/getting-started/

24. Roles & Storage
Windows Azure Compute
Web Role Worker Role VM Role
Windows Azure
SQL Azure
Storage
Table / Queue / Blob

25. Azure Storage Explorer
http://azurestorageexplorer.codeplex.com/
Supports blobs, queues and tables

26. 03
MongoDB

27. “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

28. http://downloads.mongodb.org/azure/
AzureMongoDeploymentCmdlets.msi

29. PowerShell
› Only once: Get-AzureMongoDBBinaries
› Add-AzureMongoWorkerRole
› Join-AzureNodeRoleToMongoRole WebRole1
› npm install mongodb

30. node-mongodb-native
// the normal way
var mongoServer = new MongoServer("localhost", 27017, {});
mongoDb = new MongoDb(MONGO_DATABASE, mongoServer,
{ native_parser: false });
mongoDb.open(function () { });

31. 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; }); }

32. Node.js Web Application
with Storage on MongoDB
Tutorial:
https://www.windowsazure.com/en-
us/develop/nodejs/tutorials/web-app-with-mongodb/

33. 04
Conclusion

34. 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

35. MongoDB on Azure?
› Development version (2.1.1-pre-) of MongoDB
› Not recommended for production.
› No Sharding!
› Works stable for me

36. Questions?

37. Thank you!
blog.johanneshoppe.de

38. 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)

39. 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