Janakiram MSV Developer Evangelist Microsoft Corporation

What is REST? RESTing with WCF Building & Consuming RESTful Services Summary

XML-RPC – Aligned with Object Orientation (OOP) – No metadata – Maps to an object’s method Web Services – Aligned with Component Models – Rich metadata – Invocation Query metadata Invoke operation

Enterprise (SOA) Web (AJAX) Programmable Web Light Weight REST RSS POX JSON WS-* Transactions Asynchrony Reliability Security

REpresentational State Transfer Architectural style / pattern Aligned with HTTP – Verbs Maps to URI – Resources Web-Style interaction between client and server – Stateless Doesn’t rely on – Toolkits – Proxy – Metadata

Verbs – GET – POST – PUT – DELETE Resources are accessed through URI – – – –

CreateCustomer() RetrieveCustomer() UpdateCustomer() DeleteCustomer() POST GET PUT DELETE

Every HTTP request has a response HTTP – HTML Web Services – SOAP XML-RPC – XML REST – POX New! – JSON New! – RSS

POX – Plain Old XML – Doesn’t adhere to a schema – Can be easily parsed JSON – JavaScript Object Notation – Improved CSV format – Simple Name/Value pair RSS – R eally S imple S yndication – Well-Known schema – Extensible

“Don”, “1978”, “Hindi”, “Amitabh, Zeenat Aman” { "MovieName":"DON", "Year":2006, "Language":"Hindi", "Cast":"Shahrukh, Priyanka" } CSVJSON

JSON / AJAX Support – WebHttpBinding – JSON Message Encoding Syndication Support – RSS 2.0 – ATOM 2.0 HTTP Programming Support – REST – POX

REST brings the simplicity of HTTP to programmable web Light weight approach to expose and consume services Wire Format protocols can be POX,JSON and RSS WCF in Orcas supports REST, POX, JSON and RSS

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