Intro to WCF From the beginning and uses Steve AppRochester

Before WCF Sockets Named Pipes TCPIP HTTP MSMQ Everything had a different API that you had to learn. Switching from one to another was not simple.

With WCF we get… Consistent interface for all communication TCP HTTP MSMQ Named Pipes Peer-to-Peer XML configuration to define Endpoints, binding, behaviors, etc Can use code behind instead of XML

ABCs of WCF A – Address the location of the service and the transport protocol used to communicate with the service B – Binding How do I talk to the service Basic binding, TCP binding C – Contract a platform-neutral and standard way of describing what the service does

Examples of ABCs of WCF A – Address net.tcp://localhost:8081/SpeakerService

Examples of ABCs of WCF B – Binding netTcpBinding netPeerTcpBinding basicHttpBinding (SOAP compatible) mexHttpBinding mexHttpsBinding netNamedPipeBinding msmqIntegrationBinding

Examples of ABCs of WCF C – Contract [ServiceContract] public interface ISpeakerService { [OperationContract] SpeakerInfo GetNextSpeaker(); [OperationContract] void AddSpeaker(SpeakerInfo newSpeaker); [OperationContract] IEnumerable GetAllSpeakers(); }

Service Configuration Editor Windows SDK Tools Allows editing of the app.config to add services demo

Service Configuration Editor (cont.)

WCF is just a Web Service? Web ServicesWCF Asmxsvc but can be treated like an asmx HTTP and statelessDifferent hosting environments (IIS, apps, services) SOAP (http and xml)Binary or text data XmlSerializerDataContractSerializer Exceptions are SOAP faultsExceptions can be configured to be handed back to the client

Hosting WCF Services WCF Services can be hosted in many different things. IIS / Azure (ASP.NET project) Apps Windows Services

Using WCF for a Singleton WCF can also be used to implement the Singleton pattern Yes it is overkill, but it will work Demo

WCF as a Web Service Hosted with IIS on a server or in the cloud ASP.NET projects Sync (default) or Async Demo

WCF Goes RESTful NuGet package from MS for WCF REST services Demo

WCF Futures Web API Way to configure wcf for web messaging, even form posts Simplified setup Nuget WebApi.All Jquery Support JSON