CODEWITHSUNDEEP
.netwcfsoapjbosswildfly
Mike Taverne
Mike Taverne

Reputation: 9352

Invalid request to SOAP service does not produce expected SOAP fault

I am calling a SOAP service running on WildFly (JBoss) which includes this operation:

<wsdl:operation name="checkIn">
  <wsdl:documentation>blah</wsdl:documentation>
  <wsdl:input message="tns:checkInRequestMsg" />
  <wsdl:output message="tns:checkInResponseMsg" />
  <wsdl:fault name="error" message="tns:errorMsg" />
</wsdl:operation>

When I call this service in Fiddler with an invalid request, I receive an HTTP 500 response that looks essentially like this (I have redacted slightly):

<?xml version="1.0" encoding="utf-16"?>
<SOAP:Envelope xmlns:tns="..." xmlns:jaxb="http://java.sun.com/xml/ns/jaxb" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/">
   <SOAP:Body>
      <tns:error version="1.0">
         <reason>...</reason>
      </tns:error>
   </SOAP:Body>
</SOAP:Envelope>

When I call this service with the same invalid request, using a .NET WCF service proxy generated by Visual Studio 2015, I am not getting a .NET exception and the response is null. I am unable to parse the error response.

The proxy defines the operation this way:

    // CODEGEN: Generating message contract since the operation checkIn is neither RPC nor document wrapped.
    [System.ServiceModel.OperationContractAttribute(Action="urn:checkIn", ReplyAction="*")]
    [System.ServiceModel.FaultContractAttribute(typeof(ConsoleApplication2.ServiceReference1.ServiceError), Action="urn:checkIn", Name="error")]
    [System.ServiceModel.XmlSerializerFormatAttribute(SupportFaults=true)]
    ConsoleApplication2.ServiceReference1.checkInResponse checkIn(ConsoleApplication2.ServiceReference1.checkInRequest request);

How can I call the service in .NET so that I can received parsed error responses instead of getting null responses? I would like to be able to use the .NET WCF generated proxy, and avoid having to parse the raw XML response!

Upvotes: 0

Views: 868

Answers (1)

Ackelry Xu
Ackelry Xu

Reputation: 776

I write my code as follows and could catch the customized exception.

MyServiceContract.

 [ServiceContract]
public  interface Test
{
    [OperationContract]
    [FaultContract(typeof(CalculatorFault))]
    [XmlSerializerFormat(SupportFaults = true)]
    double add(double a, double b);
}

My exception model.

 [DataContract]
public class CalculatorFault
{
    [DataMember]
    public string OperationName { get; set; }
    [DataMember]
    public string Fault { get; set; }
}

My service.

 public class ServiceTest : Test
{

    public double add(double a, double b)
    {

        if (b == 0)
        {
            throw new FaultException<CalculatorFault>(new CalculatorFault { OperationName = "divide", Fault = "hello" },"message");
        }
        return a + b;
    }
}

My client code.

  static void Main(string[] args)
    {
        using (ChannelFactory<Test> testf = new ChannelFactory<Test>("test"))
        {
         Test test =   testf.CreateChannel();
            try
            {
                test.add(0, 0);
            }
            catch (FaultException<CalculatorFault> ex)
            {


            }    
        }
    }

Upvotes: 0

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