SOAP, JSON and POX in same restful wcf

Question

I am trying to have SOAP and RESTful in the same WCF service. I have ahieved it as well apart from one issue. Following is my web.config:

<service behaviorConfiguration="webBehaviour" name="MyServices">
        <clear />
        <endpoint address="" binding="basicHttpBinding" bindingConfiguration="basicHttp"
         name="basicHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="ws" binding="wsHttpBinding" bindingConfiguration="WsHttp"
          name="wsHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="web" binding="webHttpBinding" bindingConfiguration="WebHttp" behaviorConfiguration="webBehavior"
          name="webHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="json" binding="webHttpBinding" bindingConfiguration="WebHttp" behaviorConfiguration="webJSONBehavior"
          name="webJSONHttpBinding" contract="DJSharedServices.ISharedServices" />
        <endpoint address="mex" binding="mexHttpBinding"    contract="IMetadataExchange"   name="mexBinding" />        
       </service>    
    </services>

When I have all the endpoints it gives the following error:

An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.NullReferenceException: Object reference not set to an instance of an object.
   at System.ServiceModel.Description.WsdlExporter.CreateWsdlBindingAndPort(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName, Port& wsdlPort, Boolean& newBinding, Boolean& bindingNameWasUniquified)
   at System.ServiceModel.Description.WsdlExporter.ExportEndpoint(ServiceEndpoint endpoint, XmlQualifiedName wsdlServiceQName)
   at System.ServiceModel.Description.WsdlExporter.ExportEndpoints(IEnumerable`1 endpoints, XmlQualifiedName wsdlServiceQName)
   at System.ServiceModel.Description.ServiceMetadataBehavior.MetadataExtensionInitializer.GenerateMetadata()
   at System.ServiceModel.Description.ServiceMetadataExtension.EnsureInitialized()
   at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.InitializationData.InitializeFrom(ServiceMetadataExtension extension)
   at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.GetInitData()
   at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.TryHandleDocumentationRequest(Message httpGetRequest, String[] queries, Message& replyMessage)
   at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.ProcessHttpRequest(Message httpGetRequest)
   at System.ServiceModel.Description.ServiceMetadataExtension.HttpGetImpl.Get(Message message)
   at SyncInvokeGet(Object , Object[] , Object[] )
   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

Things work fine if I comment out json end point.

Can you please help me finding out why??

Thanks in advance.

Answer 1

well I just added changed the binding configuration for json behaviour. I was using same binging configuration for JSON and POX. Now I have changed the configuration to:

<service behaviorConfiguration="WebBehaviour" name="MyServices">
        <clear />
        <endpoint address="" binding="basicHttpBinding" bindingConfiguration="basicHttp"
         name="basicHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="ws" binding="wsHttpBinding" bindingConfiguration="WsHttp"
          name="wsHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="web" binding="webHttpBinding" bindingConfiguration="WebHttp" behaviorConfiguration="webBehavior"
          name="webHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="json" binding="webHttpBinding" bindingConfiguration="WebjsonHttp" behaviorConfiguration="webJSONBehavior"
          name="webJSONHttpBinding" contract="DJSharedServices.IMyServices" />
        <endpoint address="mex" binding="mexHttpBinding"    contract="IMetadataExchange"   name="mexBinding" />        
       </service> 

and added binding configuration:

 <webHttpBinding>
        <binding name="WebHttp"  >
          <security mode="None"></security>
        </binding>

        <binding name="WebjsonHttp"  >
          <security mode="None"></security>
        </binding>
      </webHttpBinding>

Answer 2

Do yourself a favour and stop trying to create one service that does both SOAP and REST. You are going to end up with a mess. Review your requirements and pick the approach this is most suitable to your needs.