WCF Json GET Service: Check that the sender and receiver's EndpointAddresses agree

endpoint, get, json, wcf

Solution

If you want to create a WCF WebHTTP Endpoint (i.e., one which returns JSON, and uses the [WebGet] / [WebInvoke] attributes), the endpoint needs to have the `<webHttp/>` behavior associated with it.

<system.serviceModel> 
  <services> 
    <service name="MarathonInfo.MarathonInfoService"> 
      <endpoint address="http://localhost:10298/MarathonInfoService.svc"
                binding="webHttpBinding"
                contract="MarathonInfo.IMarathonInfo"
                behaviorConfiguration="Web"/> 
    </service> 
  </services> 
  <behaviors> 
    <serviceBehaviors> 
      <behavior> 
        <serviceMetadata httpGetEnabled="true"/> 
        <serviceDebug includeExceptionDetailInFaults="false"/> 
      </behavior> 
    </serviceBehaviors>
    <endpointBehaviors>
      <behavior name="Web">
        <webHttp/>
      </behavior>
    </endpointBehaviors>
  </behaviors> 
  <serviceHostingEnvironment multipleSiteBindingsEnabled="false" /> 
</system.serviceModel>

Problem

I've been working in .NET for a while now, but I'm new to WCF. I'm trying to create my very first WCF service using JSON. I thought I would start really, really simple and then build from there. But I have somehow managed to screw up even the most simple of services. Here's what I've got so far. Web.Config: ``` <?xml version="1.0"?> <configuration> <system.web> <compilation debug="true" targetFramework="4.0" /> </system.web> <system.serviceModel> <services> <service name="MarathonInfo.MarathonInfoService"> <endpoint address="http://localhost:10298/MarathonInfoService.svc" binding="webHttpBinding" contract="MarathonInfo.IMarathonInfo" /> </service> </services> <behaviors> <serviceBehaviors> <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"/> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment multipleSiteBindingsEnabled="false" /> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer> </configuration> ``` Then, in the service file: ``` namespace MarathonInfo { public class MarathonInfoService : IMarathonInfo { public String GetData() { return "Hello World"; } } } ``` And in the interface: ``` namespace MarathonInfo { [ServiceContract] public interface IMarathonInfo { [OperationContract] [WebInvoke(Method = "GET", UriTemplate = "/GetData", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)] String GetData(); } } ``` So, when I go to this url: ``` http://localhost:10298/MarathonInfoService.svc/GetData ``` I get this error: The message with To 'http://localhost:10298/MarathonInfoService.svc/GetData' cannot be processed at the receiver, due to an AddressFilter mismatch at the EndpointDispatcher. Check that the sender and receiver's EndpointAddresses agree. I am able to execute the service just fine through Visual Studio in debug mode. But in the browser, I only get that error. What am I doing wrong? Thanks! Casey

Original source