WCF JSON implementation - json

Question

I'm trying to implement a very simple WCF service that returns JSON. I'm trying for 6 hours now and it still doesn't work. I hope you can help me out with this.
Person
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
namespace Tcf.AtX.Services
{
[DataContract]
public class Person
{
[DataMember]
public string Name { get; set; }
}
}
Service Contract
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Web;
namespace Tcf.AtX.Services
{
[ServiceContract]
public interface IBroadcastService
{
/// <summary>
/// Broadcasts the specified message.
/// </summary>
/// <param name="message">The message.</param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method="GET", ResponseFormat= WebMessageFormat.Json)]
Person Broadcast(string message);
}
}
Service Implementation
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Tcf.AtX.Broadcasting;
namespace Tcf.AtX.Services
{
public class BroadcastService : IBroadcastService
{
/// <summary>
/// Broadcasts the specified message.
/// </summary>
/// <param name="message">The message.</param>
/// <returns></returns>
public Person Broadcast(string message)
{
return new Person() { Name = message };
}
}
}
Configuration
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
<system.serviceModel>
<services>
<service name="Tcf.AtX.Services.BroadcastService">
<endpoint address="" binding="webHttpBinding" contract="Tcf.AtX.Services.IBroadcastService" behaviorConfiguration="json"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:8732/Design_Time_Addresses/Tcf.AtX.Services/BroadcastService/" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="json">
<webHttp />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
The problem is that i don't see the service inside the test client, so i can't test my method.
I also wrote a test client myself, but i can't create an instance of my service when i reference it to my project.
Can someone please explain to me what i'm doing wrong?
Best regards,
Rob

Answer 1

The test client doesn't work for non-SOAP endpoints (i.e., the one you have, which uses the WebHttpBinding). Try simply creating a program that tries to call the operation you have, something like the code below
WebClient c = new WebClient();
Console.WriteLine(
c.DownloadString(
"http://localhost:8732/Design_Time_Addresses/Tcf.AtX.Services/Broadcast?message=MyMessage"));
One more thing, you'll need to change the [WebInvoke(Method="GET")] attribute to [WebGet].