WCF The Unified Services Programming Model for SOAP, REST, Data and RIA Communication

WCF The Unified Services Programming Model for SOAP, REST, Data and RIA Communication Ron Jacobs Sr. Program Manager, AppFabric Development Platform (WCF/WF) Microsoft Corporation http://blogs.msdn.com/rjacobs @ronljacobs

What you wanted

What you got

What you need

WCF Programming Model SOAPServices Web HTTP Services Data Services RIA Services Workflow Services Service Model Data Contract Service Contract Service Behavior Channel Model Formats (Atom, JSON, XML,…) Transports (HTTP, TCP, …) Protocols (SOAP, HTTP, Open Data Protocol,…)

WCF SOAP Services (made easy in .NET 4) demo

WCF Workflow Services http://channel9.msdn.com/Shows/Endpoint/endpointtv-WF4--AppFabric-Contoso-HR-Sample demo

Model

Service publicclassConference: DataService<ConferenceDataEntities> { // This method is called only once to initialize service-wide policies. publicstaticvoidInitializeService(DataServiceConfigurationconfig) { config.SetEntitySetAccessRule("*", EntitySetRights.AllRead); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; } }

WCF Data Services http://bit.ly/bTKZNz demo

Three Steps to build a WebHttp Service

Resource publicclassSessionData { publicint ID { get; set; } publicstring Title { get; set; } publicDateTime? Date { get; set; } publicstring Speaker { get; set; } }

Resource URI

Step 1 – Create Service • public class Session • { • public SessionData[] GetSessions(int start, int count) • { • } • public SessionData GetSession(string id) • { • } • }

Step 2 – Implement Service • public class Session • { • public SessionData[] GetSessions(int start, int count) • { • return ConferenceRepository.GetSessions(start, count); • } • public SessionDataGetSession(string id) • { • return ConferenceRepository.GetSession(id); • } • }

Step 3 – Attribute for WCF • [ServiceContract] • [AspNetCompatibilityRequirements( • RequirementsMode = AspNetCompatibilityRequirementsMode.Required)] • public class Session • { • }

Step 3 – Attribute for WCF • [WebGet] • public SessionDataGetSession(string id) • { • return ConferenceRepository.GetSession(id); • } HTTP GET = “~/Sessions/GetSession?id=123”

Step 3 – Attribute for WCF • [WebGet(UriTemplate = "/{id}")] • public SessionDataGetSession(string id) • { • return ConferenceRepository.GetSession(id); • } HTTP GET = “~/Sessions/123”

Step 3 – Attribute for WCF • [WebGet(UriTemplate = "/?skip={skip}&take={take}")] • public SessionData[] GetSessions(int skip, int take) • { • return ConferenceRepository.GetSessions( • AdjustSkip(skip), • AdjustTake(take)); • } HTTP GET = “~/Sessions?skip=5&take=7”

Step 4 – Add Routes • void Application_Start(object sender, EventArgs e) • { • RouteTable.Routes.Add( • new ServiceRoute("Sessions", • new WebServiceHostFactory(), • typeof(SessionService))); • } No .SVC file!

Step 5 – Configure <system.serviceModel> <standardEndpoints> <webHttpEndpoint> <standardEndpoint automaticFormatSelectionEnabled="true" helpEnabled="true" /> </webHttpEndpoint> </standardEndpoints> <serviceHostingEnvironmentaspNetCompatibilityEnabled="true" /> </system.serviceModel>

WCF WebHTTP Services http://code.msdn.microsoft.com/WebHTTPAPIKey demo

Canonical REST Entity Service http://code.msdn.microsoft.com/cannonicalRESTEntity demo

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WCF The Unified Services Programming Model for SOAP, REST, Data and RIA Communication