Azure REST Services

Presented by Barkha HermanMy-Guides.com

What are we going to talk about?

• How to write a REST service for Azure• How to use Azure Console / SQL Azure (brief)• How to deploy Azure Service• How to consume a REST service (obligatory)• What about security?• Some notes on scalability

Service – Why?

• Amazon – everything is a service– Steve Yegge Rant

• Clients are more than the website– Social media, web, thick client, smart devices etc.

• Services begat client apps (see bullet 1)

Obligatory REST slide (aka REST – Why?)

• Representational State Transfer• Easy as web• Uses Get, Put, Post Delete for CRUD• URIs, HTTP based, Common Data formats• Roy Fielding started it!• Light weight, does not have to be XML.

Azure – Why?• Scalability is easy – scale up (hosted account

story)• Cost – pay as you go, scale down• Reliability – triple redundancy to avoid falls

(climbing reference)• Security – Bank vs. Mattress analogy• PaaS as opposed to SaaS• Watch the spiel on MS sites if you want to

know more.

Pricing

• Database– Based on instance / Size

• Compute– Based on instance / Size

• CDN– Size / Transfer Volume

https://www.windowsazure.com/en-us/pricing/details/

How to write a RESTful services and deploy them to Azure

• It’s easier than you think…• Use WCF / C# (use what you know)• Download / Install REST Template– http://visualstudiogallery.msdn.microsoft.com/fbc

7e5c1-a0d2-41bd-9d7b-e54c845394cd• SQL Azure• WCF Service• Deploy• Run!

CODE!!!

What about security?• Why I love to segregate – aka Command

Query Separation– Security• Read service is world accessible – write service not so

much

– Performance• Throw more instances at the read service

– Bertrand Meyers - if you want to learn more• Tokens for access• TLS

CODE!!!!

Scalability

• Autoscaling Application Block• AzureWatch• Demo – how to change it manually

Conclusion

• Azure makes it super easy to write and deploy scalable services

• REST / WCF makes it super easy to write accessible services

• Got to be on the app store if you want to be seen

(come together!)

Questions?

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How to get the code / Contact me

• All the code for this session including slides are at:– http://www.my-guides.com/blog

• The best way to reach me is email:– barkha@my-guides.com– www.my-guides.com

• Download our free apps, and rate them!!!!– How fast I respond to emails depends entirely on

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