Getting 400 error in Wcf restfull hosted service in iis server - web-services

Question

Declaration of function with json configuration
namespace Wcf_Test2
{
[ServiceContract]
public interface IMyService
{
[OperationContract]
[WebInvoke(Method = "GET",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare,
UriTemplate = "dowork")]
string DoWork();
}
}
It is function that returns string value.
public class MyService : IMyService
{
public string DoWork()
{
string str = "HI, Its's DOWork Running";
return str;
}
}
This is Web.config file which I use.
<?xml version="1.0"?>
<configuration>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="false" targetFramework="4.5" />
<httpRuntime targetFramework="4.5"/>
</system.web>
<system.serviceModel>
<services>
<service behaviorConfiguration="Default" name="Wcf_Test2.MyService">
<endpoint address="" binding="basicHttpBinding"
contract="Wcf_Test2.IMyService" />
<endpoint address="mex" binding="mexHttpBinding"
contract="IMetadataExchange" />
<host>
<baseAddresses>
<add baseAddress="http://localhost/Wcf_Test2/MyService.svc" />
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="webBehavior">
<webHttp />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="Default">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
I am calling this hosted web service as http://localhost/Wcf_Test2/MyService.svc/dowork
but it's replying this
The error is this which this picture is showing me.