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POSelf hosting two wcf interfaces (one of them is duplex)
 

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  1. POSelf hosting two wcf interfaces (one of them is duplex)
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    <p>I need to build a service that serves two interfaces. One interface uses basicHttpBinding, and the other should be netTcpBinding. The other one should also support duplex communication.</p> <p>basicHttp interface:</p> <pre><code>[ServiceContract(Name = "accesspointService")] [XmlSerializerFormat] public interface IVERAAccessPoint { [OperationContract] CompositeType GetDataUsingDataContract(MyClass obj); } </code></pre> <p>Implementation:</p> <pre><code> [ServiceBehavior(Name = "accesspointService", Namespace = "http://www.w3.org/2009/02/ws-tra")] public class VERAAccessPoint : IVERAAccessPoint { public CompositeType GetDataUsingDataContract(MyClass obj) { //something return composite; } } </code></pre> <p>duplex netTcpContract:</p> <pre><code>[ServiceContract(CallbackContract = typeof(IClientCallback))] public interface IVERAAPCS { [OperationContract(IsOneWay=true)] void Subscribe(ClientInfo info); [OperationContract(IsOneWay=true)] void Unsubscribe(ClientInfo info); } public interface IClientCallback { [OperationContract(IsOneWay = true)] void PushDocument(XDocument doc); } [DataContract] public class ClientInfo { public string id; } </code></pre> <p>And implementation:</p> <pre><code>[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession,ConcurrencyMode = ConcurrencyMode.Single)] public class VERAAPCS : IVERAAPCS { public void Subscribe(ClientInfo info) { //something } public void Unsubscribe(ClientInfo info) { //Something } } </code></pre> <p>I tried to self host both interfaces and this is the best i could do:</p> <pre><code>Uri baseAddress1 = new Uri("http://localhost:6544/hello"); //host the first interface using (ServiceHost host = new ServiceHost(typeof(VERAAccessPoint.VERAAccessPoint), baseAddress)) { // Enable metadata publishing. ServiceMetadataBehavior smb = new ServiceMetadataBehavior(); smb.HttpGetEnabled = true; smb.MetadataExporter.PolicyVersion = PolicyVersion.Policy15; host.Description.Behaviors.Add(smb); host.Open(); //Host the second (duplex interface) using (ServiceHost host2 = new ServiceHost(typeof(VERAAccessPoint.VERAAPCS))) { host2.AddServiceEndpoint(typeof(VERAAccessPoint.IVERAAPCS), new NetTcpBinding(), "net.tcp://localhost:6543/hello2"); host2.Open(); Console.ReadLine(); host2.Close(); } host.Close(); } </code></pre> <p>Now for the consuming part: //Consuming the first interface (this works so i removed it form the question) //Consuming the second interface:</p> <pre><code>var myBinding = new NetTcpBinding(); var myEndpoint = new EndpointAddress("net.tcp://localhost:6543/hello2"); var myChannelFactory = new ChannelFactory&lt;VERAAccessPoint.IVERAAPCS&gt;(myBinding, myEndpoint); VERAAccessPoint.IVERAAPCS client = null; client = myChannelFactory.CreateChannel(); </code></pre> <p>This produces the following error:</p> <blockquote> <p>ChannelFactory does not support the contract IVERAAPCS as it defines a callback contract with one or more operations. Please consider using DuplexChannelFactory instead of ChannelFactory.</p> </blockquote> <p>But I just can't seem to find a way to use the duplexChannelFactory. So my question is basically how do you consume a duplex netTcpBinding service tat is self hosted?</p> <p>Sorry for the long question, but I wanted to provide as much information as I could. Thanks</p>
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    1. COWhat did you try on your way to "can't seem to find a way"? There is an example [here](http://msdn.microsoft.com/en-us/library/ms576164.aspx) that seems very straightforward. Maybe you could post an actual problem you have while trying to use it?
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    2. COwhy do you have your `ServiceHost` objects in a `using` block? As soon as you exit the `using` block, the host will close, will it not?
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    3. CO@Tim Sorry, there is a Console.ReadLine() inthe using block. It got lost when I was shortening the code to post it here.
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