A good slide to to start working in WCF

2. The Windows Communication Foundation

4. .NET At The Core

5. Windows Communication Foundation The Unified Framework For Rapidly Building Service-Oriented Applications

7. Unified Programming Model Interop with other platforms ASMX Attribute- Based Programming Enterprise Services WS-* Protocol Support WSE Message- Oriented Programming System.Messaging Extensibility Location transparency .NET Remoting

8. WS-* Protocol Support XML Messaging Security Transactions Reliable Messaging Metadata

9. Investment Protection SIDE-BY-SIDE Interop UPGRADE

10. SERVICE ORIENTATION

12. Four Tenets of Service Orientation SERVICE ORIENTATION Compatibility Based On Policy Share Schema & Contract, Not Class Services Are Autonomous Boundaries Are Explicit

15. The Windows Communication Foundation

18. Callers and Services Caller Service

19. Endpoints Caller Service Endpoint Endpoint Endpoint Endpoint

20. Address, Binding, Contract Service Caller C B A C B A A B C Address Where? Contract What? Binding How? C B A

21. Creating Endpoints Service Service Host Caller Proxy or ChannelFactory A B C C B A C B A C B A

22. Exposing & Configuring Endpoints proxy.cs Caller app/web.config GetMetadata WSDL Service ? C B A C B A C B A C B A C B A C B A

23. Hello World

26. Service Contract [ServiceContract] public interface ICalculator { [OperationContract] int DoMath(int a, int b, string op); }

27. Service Contract An Opt-In Model [ServiceContract] public interface ICalculator { [OperationContract] int DoMath(int a, int b, string op); // Not exposed as part of the external contract :-) void MethodRequiredForImplementation(bool b); }

28. Operations Types Message DoXmlMath( Message m); Untyped (“Universal”) MathResponse DoMsgMath( MathRequest msg); int DoParamsMath( int a, int b, string op ); Typed Message Parameterized Operations (shorthand for TM)

29. Service Contract: Names [ServiceContract( Namespace ="http://TechEd.WCF.Intro")] public interface IGreetings { [OperationContract( Name =“SayHello", Action ="http://TechEd.WCF.Intro/HelloRequest", ReplyAction ="http://TechEd.WCF.Intro/HelloResponse")] string Greet(string name); [OperationContractAttribute( Action = "*" )] void UnrecognizedMessageHandler( Message msg ); } class GreetingService : IGreetings { public string Greet(string name) { return “Hello, " + name; } public void UnrecognizedMessageHandler(Message msg) { Console.WriteLine("Unrecognized message: " + msg.ToString()); } }

31. Service Contract: OneWay [ServiceContract] public interface IOneWayCalculator { [OperationContract( IsOneWay=true )] void DoMath(MathRequest request); }

32. Service Contract: Duplex [ServiceContract(SessionMode=SessionMode.Required, CallbackContract=typeof(ICalculator Results ) ] public interface ICalculatorProblems { [OperationContract(IsOneWay=true)] void DoMath(MathRequest request); } public interface ICalculatorResults { [OperationContract(IsOneWay=true)] void DisplayResults(MathResponse response); }

33. Service Contract: Faults t ry { return n1 / n2; } catch (DivideByZeroException e) { MyMathFault f = new MyMathFault (n1, n2); FaultReason r = new FaultReason(&quot;Divide By Zero&quot;); throw new Fault Exception < MyMathFault >( f, r ); } [ServiceContract(Session=true)] public interface ICalculator { [OperationContract] [FaultContract(typeof( MyMathFault ))] int DoMath(int a, int b, string op); }

34. Service Contract: Versioning [ServiceContract] public interface ICalculator2 : ICalculator { [OperationContract(IsOneWay=true)] void SolveAndStoreProblem (ComplexProblem p); }

35. Service Contract: Streams [ServiceContract ] public interface IStreamCalculator { [OperationContract] Stream Fibonacci(int iterations); }

36. Data Contract [DataContract] public enum Position { [ EnumMember ] Employee, [ EnumMember ] Manager, [ EnumMember( Value = “ Vendor&quot; ) ] Contractor, NotASerializableEnumeration }

37. Data Contract: Names [DataContract( Name=“Complex”, Namespace=“http://BigMath.Samples” )] public class ComplexNumber { [DataMember( Name=“RealPart” )] public double Real = 0.0D; [DataMember( Name=“ImaginaryPart” )] public double Imaginary = 0.0D; public ComplexNumber(double r, double i) { this.Real = r; this.Imaginary = i; } }

38. Data Contract: Enumerations [DataContract] public enum Position { [EnumMember] Employee, [EnumMember] Manager, [EnumMember(Value = “Vendor&quot;)] Contractor, NotASerializableEnumeration }

39. Message Contract [MessageContract] public class ComplexProblem { [MessageHeader(Name=&quot;Op&quot;, MustUnderstand=true)] public string operation; [MessageBodyMember] public ComplexNumber n1; [MessageBodyMember] public ComplexNumber n2; [MessageBodyMember] public ComplexNumber solution; // Constructors… }

40. Mapping Contracts (1/2) [ MessageContract ] public class MyRequest { [MessageHeader] public int Amount; [MessageBody] public ItemInfo Info; } [ DataContract ] public class ItemInfo { [DataMember] public int ID; [DataMember] public double Cost; [DataMember] public string Name; } wsdl:message wsdl:part xsd:element

41. Mapping Contracts (2/2) [ ServiceContract ] public interface MyContract { [OperationContract] MyReply MyOp(MyRequest request); [OperationContract] void MyOp2(MyRequest2 request); } wsdl:portType wsdl:operation

43. Bindings & Binding Elements Transport IPC MSMQ Custom TCP HTTP Protocol Encoders .NET TX Custom Security Reliability Binding HTTP TX Security Reliability Text Text Binary Custom TCP Binary

45. System-Provided Bindings N = None | T = Transport | M = Message | B = Both | RS = Reliable Sessions Binding Interop Security Session TX Duplex BasicHttpBinding BP 1.1 N, T N N n/a WSHttpBinding WS M , T, X N , T, RS N , Yes n/a WSDualHttpBinding WS M RS N , Yes Yes WSFederationBinding Federation M N , RS N , Yes No NetTcpBinding .NET T , M T ,RS N , Yes Yes NetNamedPipeBinding .NET T T , N N , Yes Yes NetPeerTcpBinding Peer T N N Yes NetMsmqBinding .NET T , M, X N N , Yes No MsmqIntegrationBinding MSMQ T N N , Yes n/a

46. Binding in Config <?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot; ?> <configuration> <system.serviceModel> <services> <service serviceType=&quot;CalculatorService&quot;> <endpoint address=&quot;Calculator&quot; bindingSectionName=&quot;basicProfileBinding&quot; contractType=&quot;ICalculator&quot; /> </service> </services> </system.serviceModel> </configuration>

47. Configuring Bindings <endpoint address=&quot;Calculator&quot; bindingSectionName=&quot; basic Http Binding &quot; bindingConfiguration=&quot; UsernameBinding &quot; contractType=&quot;ICalculator&quot; /> <bindings> <basicHttpBinding> <binding name=&quot; UsernameBinding &quot; messageEncoding=&quot;Mtom&quot;> <security mode=&quot;Message&quot;> <message clientCredentialType=&quot;UserName&quot;/> </security> </binding> </basicHttpBinding> < /bindings>

48. Custom Bindings <bindings> <customBinding> <customBinding> <binding name=&quot;ReliableTCP&quot;> <reliableSession inactivityTimeout=&quot;0:0:5“ ordered=&quot;true&quot;/> <binaryMessageEncoding/> <tcpTransport transferMode=&quot;Buffered&quot;/> </binding> </customBinding> </customBinding> </bindings>

49. Choosing Bindings Any Protocol Any Binding Any Binding WCF WCF MSMQ WCF COM+/ES WCF MSMQ Protocol WS-* Protocols MSMQ Binding Moniker ASMX/WSE3 WCF WS-* Protocols Http/WS Binding Other Platform WCF WS-* Protocols Http/WS Binding

52. Behaviors Client-Side Behaviors Service-Side Behaviors Service Caller Be Be C B A C B A A B C C B A

54. Example: Security Service Client Be Be Bindings Move Claims in Messages Behaviors Implement Security Gates Behaviors Provide Credentials C B A C B A A B C C B A

55. Example: Transactions Service Caller Be Bindings Flow Transactions Behaviors AutoEnlist and AutoComplete C B A C B A A B C C B A

56. Anti-Example: Reliable Sessions Service Caller Bindings provide Session and Guarantees C B A C B A A B C C B A

58. Features Summary Address Binding Behavior Contract HTTP Transport TCP Transport NamedPipe Transport MSMQ Transport Custom Transport WS-Security Protocol WS-RM Protocol WS-AT Protocol Duplex Channel Custom Protocol http://... net.tcp://... net.pipe://... net.msmq://... xxx://... Throttling Behavior Metadata Behavior Error Behavior Custom Behavior Instancing Behavior Concurrency Behavior Transaction Behavior Security Behavior Request/ Response One-Way Duplex net.p2p://... Peer Transport Externally visible, per-endpoint Opaque, per-service, endpoint, or op

59. WCF Application “Architecture” Channels Transport Channels (IPC, HTTP, TCP…) Reliability Message Encoder Security Hosting Environments WAS IIS .exe Windows Service DllHost Messaging Services Queuing Routing Eventing Discovery Service Model Application Instance Manager Context Manager Type Integration Service Methods Declarative Behaviors Transacted Methods