WCF via HTTP-GET

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.ServiceModel.Description;

namespace RestfulWCFClient
{
    [ServiceContract]
    public interface ICalculator
    {
        [OperationContract]
        [WebGet(UriTemplate = "Sub?x={x}&y={y}")]
        long Subtract(long x, long y);

        [OperationContract]
        [WebGet(UriTemplate = "Mult?x={x}&y={y}", BodyStyle = WebMessageBodyStyle.Bare)]
        long Multiply(long x, long y);
    }

    public partial class Calculator : ICalculator
    {
        public long Subtract(long a, long b)
        {

            return a - b;

        }
        public long Multiply(long a, long b)
        {

            return a * b;
        }
    } 

    class Program
    {

        static void Main(string[] args)
        {
            ServiceHost host = new ServiceHost(typeof(Calculator), new Uri(@"http://localhost:8000/Services"));
            WebHttpBinding binding = new WebHttpBinding();
            binding.SendTimeout = TimeSpan.MaxValue;
            ServiceEndpoint endpoint = host.AddServiceEndpoint(typeof(ICalculator), binding, @"CalculatorService");

            WebHttpBehavior httpBehavior = new WebHttpBehavior();
            endpoint.Behaviors.Add(httpBehavior);

            ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
            smb.HttpGetEnabled = true;
            host.Description.Behaviors.Add(smb);

            host.Open();

            Console.Read();
        }
    }
}

 

http://localhost:8000/Services/CalculatorService/Sub?x=2&y=1