MID307

Article source: /2011/05/02/ facebook- marriage-killer?gt1= /2011/05/02/ facebook- marriage-killer?gt1=43001

“The Server”

Traditional Web Service

Howard Dierking photos/belisario/ /

ProductResource ProductResource GET POST GET (id) PUT (id) DELETE (id) GET POST GET PUT DELETE

Demo

photos/alexgoy/ / photos/diwong/ /

HTTP/ OK Cache-Control: private Content-Length: 553 Content-Type: application/json; charset=utf-8 { "description":"Erik Evans magnum opus on DDD", "links":null,"name":"Domain Driven Design", "price":59.99,"productNumber":"200", "quantityOnHand":1 } ProductResource ProductResource GET POST GET (id) PUT (id) DELETE (id) GET Accept: application/json GET Accept: application/json HTTP/ OK Content-Type: application/json HTTP/ OK Content-Type: application/json

Demo

What did he just say? m/photos/mindonfir e/ /

GET HTTP/ Not Modified GET If-None-Match: “1” GET If-None-Match: “1” HTTP/ Not Modified GET HTTP/ OK Cache-Control: max-age=60 Etag:“1”... HTTP/ OK Cache-Control: max-age=60 Etag:“1” ProductResource ProductResource GET POST GET (id) PUT (id) DELETE (id) GET (id)

PUT If-Match: “1” PUT If-Match: “1” HTTP/ OK Etag: “2”... HTTP/ OK Etag: “2”... PUT If-Match: “1” PUT If-Match: “1” HTTP/ Precondition Failed GET HTTP/ OK Etag: “2” HTTP/ OK Etag: “2” PUT If-Match: “2” PUT If-Match: “2” HTTP/ OK Etag: “8”... HTTP/ OK Etag: “8” ProductResource ProductResource GET POST GET (id) PUT (id) DELETE (id) GET (id) PUT (id)

Demo

GET Accept: application/atom+xml GET Accept: application/atom+xml GET HTTP/ OK All Products All my products ProductsFeed T22:30:30-07:00 2 Domain Driven Design T22:30:30-07: ProductResource ProductResource GET POST GET (id) PUT (id) DELETE (id) GET GET (id)

Demo

otos/x- ray_delta_one/ /

Demo

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.NET Framework 3.0 No support for REST – SOAP only.NET Framework 3.5 Basic infrastructure for non-SOAP HTTP services REST Starter Kit Preview 1 Visual Studio templates for RESTful services Request interceptors REST Starter Kit Preview 2 HTTP client library.NET Framework 4.0 ASPNET routes integration Automatic content negotiation

Level 3: HypermediaLevel 2: HTTPLevel 1: URIs Level 0: Web Services Richardson’s HTTP maturity model

CartService.svc GetCart() ClearCart() UpdateCartItem(itemId, Qty) RemoveCartItem(itemId) AddCartItem(itemId, Qty) ApplyShippingInfo (shippingOption, shippingAddress) ApplyShippingInfo (shippingOption, shippingAddress) ApplyBillingInfo(billingAddress, paymentType, paymentInfo) … … POST HTTP/1.1 Content-Type: text/xml; charset=utf-8 SOAPAction: "GetCart" Content-Length: 154 <s:Envelope xmlns:s=" <GetCart xmlns=" HTTP/ OK Content-Length: 984 Content-Type: text/xml; charset=utf-8 Date: Tue, 26 Apr :22:53 GMT T18:22: :00 Product T18:22: :00... POST SOAPAction: "GetCart" 200 OK Content-Type: text/xml T18:22: :00

CartService.svc GetCart() ClearCart() UpdateCartItem(itemId, Qty) RemoveCartItem(itemId) AddCartItem(itemId, Qty) ApplyShippingInfo (shippingOption, shippingAddress) ApplyShippingInfo (shippingOption, shippingAddress) ApplyBillingInfo(billingAddress, paymentType, paymentInfo) … … POST HTTP/1.1 Content-Type: text/xml; charset=utf-8 SOAPAction: "GetCart" Content-Length: 154 <s:Envelope xmlns:s=" <GetCart xmlns=" HTTP/ Internal Server Error Content-Length: 734 Content-Type: text/xml; charset=utf-8 Date: Wed, 27 Apr :15:00 GMT a:InternalServiceFault Internal Server Error a:InternalServiceFault... a:InternalServiceFault...

Demo