Consuming WCF Data Service EF , Failed to SaveChange()

Question

I am consuming WCF Data Service as Following:

 DataMan.ContextWrapper context = new DataMan.ContextWrapper(new Uri("http://localhost:2060/PCM/DataMan.svc/rest/"));
            DataMan.Report newReport = DataMan.Report.CreateReport("123123123123", DateTime.Now, "999.199905171156550187000.25");

            newReport.Title = "tt";
            newReport.StudyAcDate = Convert.ToDateTime("2016-05-04 12:09:00");
            newReport.Body = "asdasd";
            newReport.Auther = "ali.h";
            newReport.ApproverComment = "cm";
            newReport.Approver = "admin";
            context.AddToReports(newReport);
            DataServiceResponse response = context.SaveChanges();

but after calling SaveChange() I have got the following error:

The server encountered an error processing the request. The exception message is 'Incoming message for operation 'ProcessRequestForMessage' (contract 'IRequestHandler' with namespace 'http://tempuri.org/') contains an unrecognized http body format value 'Xml'. The expected body format value is 'Raw'. This can be because a WebContentTypeMapper has not been configured on the binding. See the documentation of WebContentTypeMapper for more details.'. See server logs for more details.

and my WCF Data Service is as following:

 public class ContextWrapper : DataAccessDbContext
{
    public ContextWrapper() : base("connection string")
    {

    }
}

[JSONPSupportBehavior]
public class DataMan : EntityFrameworkDataService<ContextWrapper>
{
    public static void InitializeService(DataServiceConfiguration config)
    {
        config.SetEntitySetAccessRule("*", EntitySetRights.All);
        config.SetEntitySetAccessRule("Studies", EntitySetRights.None);
        config.SetServiceOperationAccessRule("*", ServiceOperationRights.All);
        config.UseVerboseErrors = true; // TODO - Remove for production?
        config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V3;
    }
    protected override void HandleException(HandleExceptionArgs args)
    {
        base.HandleException(args);
    }
}

I also implemented and configured WebContentTypeMapper to bypass mentioned Error as following:

 public class ContentTypeMapper : WebContentTypeMapper
{
    public override WebContentFormat GetMessageFormatForContentType(string contentType)
    {
        return WebContentFormat.Raw;
    }
}

Custom binding:

   <binding name="XmlMapper">
      <webMessageEncoding webContentTypeMapperType="MARCO.SOA.PCMServiceLib.ContentTypeMapper,MARCO.SOA.PCMServiceLib.Core"/>
      <httpTransport manualAddressing="true"/>
    </binding>
  </customBinding>

Service endpoint:

 <service behaviorConfiguration="Commom2.Behavior" name="MARCO.SOA.PCMServiceLib.DataMan">
    <endpoint address="rest" behaviorConfiguration="Rest.Behavior" binding="webHttpBinding" 
              bindingConfiguration="XmlMapper" contract="System.Data.Services.IRequestHandler">
      <identity>
        <dns value="localhost" />
      </identity>
    </endpoint>
    <host>
      <baseAddresses>
        <add baseAddress="http://localhost:2060/PCM/DataMan.svc"/>
      </baseAddresses>
    </host>
  </service>

but it still get exception, I think something went wrong with my configuration.

Any help would be truly appreciated.

Thanks in advance.

Does anybody knows how I can change Body format of WCF restful service programmatically ? — Aria, Jul 09 '16 at 10:36
I really don't know what I should do...., If there is need to more details please tell me to update the question. — Aria, Jul 09 '16 at 12:31

Aria · Accepted Answer · 2016-07-09T13:45:10.013

okay, after much trouble I finally solved the problem, so we need to initiate factory property for serviceActivation

So my relative address was:

<serviceHostingEnvironment>
  <serviceActivations>
.
.
.
   <add relativeAddress="DataMan.svc" service="MARCO.SOA.PCMServiceLib.DataMan"/>
.
.
.
  </serviceActivations>
</serviceHostingEnvironment>

and I have changed it to

<serviceHostingEnvironment>
  <serviceActivations>
.
.
.
    <add relativeAddress="DataMan.svc" service="MARCO.SOA.PCMServiceLib.DataMan" factory="System.Data.Services.DataServiceHostFactory, Microsoft.Data.Services, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
.
.
.
  </serviceActivations>
</serviceHostingEnvironment>

now everything is now working nice.

more info about DataServiceHostFactory

Note: By this we don't need to override GetMessageFormatForContentType of WebContentTypeMapper and force it to return WebContentFormat.Raw or another content format and don't need any customBinding in config file.

Thanks to all.

Consuming WCF Data Service EF , Failed to SaveChange()

1 Answers1