Error: ContractFilter mismatch at the EndpointDispatcher

Question

I am developing an iPhone app that is using the WCF to return data in json format. But when I am making call to the wcf service then I am getting the Error:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><s:Fault><faultcode xmlns:a="http://schemas.microsoft.com/ws/2005/05/addressing/none">a:ActionNotSupported</faultcode><faultstring xml:lang="en-US">The message with Action 'IPhoneDevService/GetConferenceIdByEventUrlName' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).</faultstring></s:Fault></s:Body></s:Envelope>

Service name : IPhoneDevService.svc there is no interface created for this.Same issue is comin g if I am using the Interface

Function :

[ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    [ServiceBehaviorAttribute(IncludeExceptionDetailInFaults = true)]
    [DataContractFormat(Style = OperationFormatStyle.Document)]
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "IPhoneDevService" in code, svc and config file together.
    public class IPhoneDevService
    {

 [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Xml, ResponseFormat = WebMessageFormat.Json)]
        [OperationContract]
        public string GetOneUserAuthentication(long confrenceid, string email, string password)
        {

            StringBuilder sbJson = new StringBuilder();


            try
            {
                User[] objuserdetails = new User[1];
                System.Nullable<short> strRet = 0;
                string strRetMsg = string.Empty;

                using (LINQTODBDataContext objDB = new LINQTODBDataContext())
                {
                    objuserdetails = objDB.s_t_UserLoginVerifyClient(email, password, ref strRet, ref strRetMsg).Select(res => new User
                    {
                        UserID = res.UserId,
                        Message = ExceptionMsg.GetMessage(Convert.ToInt32(strRet), strRetMsg)

                    }).ToArray();
                    if (strRet == 2)
                    {
                        new JavaScriptSerializer().Serialize(objuserdetails, sbJson);
                    }
                    else
                    {
                        new JavaScriptSerializer().Serialize(ExceptionMsg.GetMessage(Convert.ToInt32(strRet), strRetMsg), sbJson);
                    }

                }
            }

            catch (Exception ex)
            {
               return "";
            }

            return sbJson.ToString();
        }
}

xcode consumption is:

NSString *soapMessage = [NSString stringWithFormat:@"<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\ <http://schemas.xmlsoap.org/soap/envelope/%5C>"><SOAP-ENV:Body><GetOneUserAuthentication><confrenceid>123</confrenceid><email>demo@abc.com <mailto:demo@abc.com></email><password>abc</password></GetOneUserAuthentication></SOAP-ENV:Body></SOAP-ENV:Envelope>"];


NSURL *url = [NSURL URLWithString:@"http://mydomain.com/IPhoneDevService.svc/basic"];

NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];

[theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[theRequest addValue:@"IPhoneDevService/GetOneUserAuthentication" forHTTPHeaderField:@"SOAPAction"];
[theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];

NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

Service Model of WCF webconfig is:

<system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
    <bindings>
      <basicHttpBinding>
        <binding name="bhbinding" allowCookies="false">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None" />
        </binding>
      </basicHttpBinding>

    </bindings>
    <behaviors>
      <endpointBehaviors>
        <behavior name="web">
          <webHttp />
        </behavior>
      </endpointBehaviors>
      <serviceBehaviors>
        <behavior name="ServiceBehaviour">
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="true" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
        <behavior>
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="true" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false" />
          <serviceThrottling maxConcurrentCalls="400" maxConcurrentInstances="400" maxConcurrentSessions="400" />
        </behavior>
        <behavior name="IphoneServiceBehaviour">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
          <useRequestHeadersForMetadataAddress>
            <defaultPorts>
              <add scheme="http" port="8081" />
              <add scheme="https" port="444" />
            </defaultPorts>
          </useRequestHeadersForMetadataAddress>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <services>
      <service name="Configurator_Service.IPhoneDevService" behaviorConfiguration="IphoneServiceBehaviour">
        <endpoint address="basic" binding="basicHttpBinding" bindingConfiguration="bhbinding" contract="Configurator_Service.IPhoneDevService" />
      </service>
    </services>
  </system.serviceModel>

Answer 1

It looks like you've configured your endpoint wrong.

In your WCF configuration you have:

<endpoint address="basic"

but in your XCode you specify

http://.../IPhoneDevService.svc

The endpoint address you specified in your configuration is going to look like:

http://.../IPhoneDevService.svc/basic

Typically, you just leave the endpoint address blank unless you need to have more than one (e.g. if you want to expose an MEX endpoint).