Sunday, November 27, 2011

Extending ClientBase to Create a WCF Service Proxy

I was trying to explore different ways of creating a proxy to use the service. I knew 3 ways to doing it
1.using SVCUtil.exe
2.using Add Service Reference
3.using ChannelFactory<T> and DuplexChannelFactory<T> classes
As and when I explored that we could also create a proxy by using a wonderful class ClientBase<T>
Here are the steps I followed to create a Proxy using ClientBase<T>
1.Created a Sample service and Hosted in IIS
2.Copy the Service Interface to Client Code
3.Extend the ClientBase<T>
4. Create the proxy in the client and use

1.The Service Interface is as follows
[ServiceContract]
    public interface IService1
    {

        [OperationContract]
        string GetData(int value);


        // TODO: Add your service operations here
    }


The Implementation is as follows
  public class Service1 : IService1
    {
        public string GetData(int value)
        {
            return string.Format("You entered: {0}", value);
        }

    
    }


2. I copied the Service interface  to the Client Code
3. Extended the ClientBase<T> as Follow
    
    class ServiceClient:ClientBase<IService1>,IService1
    {

        public ServiceClient(BasicHttpBinding binding, EndpointAddress address
            ):base(binding,address)
        {

        }
        protected override IService1  CreateChannel()
{
        return base.CreateChannel();
}
   
public string  GetData(int value)
{
       return base.Channel.GetData(value); 
}
}
}


4.We can Invoke the custom handcoded proxy as follows
class Program
    {
        static void Main(string[] args)
        {
            ServiceClient client = new ServiceClient(new BasicHttpBinding(BasicHttpSecurityMode.None), new EndpointAddress("http://mycomputer:61468/Service1.svc"));
            Console.WriteLine(client.GetData(10));
            Console.ReadLine();
        }
    }



4 comments:

Niranjan2790 said...

Thank You very much...it was really helpfull

omsaini said...

nice post easy to understand

Filipe Bezerra de Souza said...

Thanks man!! Great tutorial!

Filipe Bezerra de Souza said...

Thanks man! Great tutorial!