How to use WCF service with raw messages? - wcf

Question

I'm trying to use WCF service with raw messages.
1) WCF service code:
[DataContract]
public class Person
{
[DataMember]
public int Id { get; set; }
[DataMember]
public string FirstName { get; set; }
[DataMember]
public string LastName { get; set; }
}
public static List<Person> CreateEmployees()
{
List<Person> lstPersons = new List<Person>()
{
new Person { Id = 1, FirstName = "Andrey", LastName = "Andreyev" },
new Person { Id = 2, FirstName = "Sergey", LastName = "Sergeyev" }
};
return lstPersons;
}
[ServiceContract]
public interface ITestService
{
[OperationContract(Action = TestService.RequestAction, ReplyAction = TestService.ReplyAction)]
Message GetPersonById(Message id);
}
public class TestService : ITestService
{
public const String ReplyAction = "http://localhost:4249/Message_ReplyAction";
public const String RequestAction = "http://localhost:4249/Message_RequestAction";
public Message GetPersonById(Message id)
{
string firstName = Employees.CreateEmployees().First(e => e.Id == id.GetBody<int>()).FirstName;
Message response = Message.CreateMessage(id.Version, ReplyAction, firstName);
return response;
}
}
2) Client code:
static void Main(string[] args)
{
TestServiceClient client = new TestServiceClient();
String RequestAction = "http://localhost:4249/Message_RequestAction";
int value = 1;
Message request = Message.CreateMessage(MessageVersion.Default, RequestAction, value);
Message reply = client.GetPersonById(request);
string firstName = reply.GetBody<string>();
Console.WriteLine(firstName);
client.Close();
}
When I run the client with: int value = 1 everything works fine. But, when I use: int value = 2 I get the following error:
Error in line 1 position 276. Expecting element 'string' from namespace 'http://schemas.microsoft.com/2003/10/Serialization/'.. Encountered 'Element' with name 'Fault', namespace 'http://www.w3.org/2003/05/soap-envelope'.
At line:
string firstName = reply.GetBody<string>();
The service is started and I've added the service reference through "Add Service Reference..." in VS2008. I use .NET Framework 3.5.
I'm not sure why I'm getting this error.
Thank you in advance for help.
Goran

Answer 1

Well, you're getting a SOAP Fault. Try logging the message (either with Fiddler, with WCF Logging, or by just reading from Message.GetReaderAtBodyContents from the message you get from the server on the client-side), and see what the fault actually says. Make sure you turn on IncludeExceptionDetailInFaults on the server side.