Self Hosting WCF Service C#

Self Hosting WCF Service in Console Applictaion

1) Create Contract and Implementation

     Here I use ADO.NET connecting to Northwind Database to get Number of Orders.

2) In Program Entry.

              Create Service Host  

3) Using ChannelFactory query above WCF Service

ServiceContract

    [ServiceContract]
    public interface IOrder
    {
        [OperationContract]
        int GetOrderCount();
    }

Implementation Class for Service Contract

Service Contract has single method called GetOrderCount from NorthWind Database.

 

    public class Orders : IOrder
    {
        public int GetOrderCount()
        {
            SqlConnection conn = new
                SqlConnection(@"Data Source=localhost\sqlexpress2012;Initial Catalog=northwind;trusted_connection=yes;");
            conn.Open();

            SqlCommand cmd = new SqlCommand("select count(*) from orders",conn);
            object obj=cmd.ExecuteScalar();

           return Int32.Parse(obj.ToString());
        } 

In Program Entry Point

                1) Create/Host a WCF Service  assign some port number(unused) here

                 2) Consume same service using ChannelFactory

                1) Create/Host a WCF Service  assign some port number(unused) here

                //Create or Host WCF Service Here
                Uri[] baseAdd = new Uri[] { new Uri("http://localhost:7070/") };
                ServiceHost host = new ServiceHost(typeof(Orders), baseAdd);
                host.AddServiceEndpoint(typeof(IOrder), new WSHttpBinding(),

                "http://localhost:7070/selfhost");

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

                host.Open(); //Open the Service
 

                 2) Consume same service using ChannelFactory

               //Consume the above WCF Service using ChannelFactory
                //
                WSHttpBinding binding = new WSHttpBinding();
                EndpointAddress address = new EndpointAddress("http://localhost:7070/selfhost");

                selfhostwcf.IOrder channel = new ChannelFactory<selfhostwcf.IOrder>(
               binding, address).CreateChannel();
                Console.WriteLine("Order Count={0}",channel.GetOrderCount());

                Console.ReadLine();

That's it ,Hosting and consuming WCF service in console application without web.config settings.

Type :  
http://localhost:7070/  in your browser u will see metadata.

as long as console application is running you can access service metdata and other applications also can consume this service.

After Excuting Console Application U will get Output as

Order Count=830

Complete Source Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
using System.Runtime.Serialization;
using System.ServiceModel.Description;
using System.Data;
using System.Data.SqlClient;
using System.ServiceModel.Channels;
namespace selfhostwcf
{

    [ServiceContract]
    public interface IOrder
    {
        [OperationContract]
        int GetOrderCount();
    }

    public class Orders : IOrder
    {
        public int GetOrderCount()
        {
            SqlConnection conn = new
                SqlConnection(@"Data Source=localhost\sqlexpress2012;Initial Catalog=northwind;trusted_connection=yes;");
            conn.Open();

            SqlCommand cmd = new SqlCommand("select count(*) from orders",conn);
            object obj=cmd.ExecuteScalar();

           return Int32.Parse(obj.ToString());
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                //Create or Host WCF Service Here
                Uri[] baseAdd = new Uri[] { new Uri("http://localhost:7070/") };
                ServiceHost host = new ServiceHost(typeof(Orders), baseAdd);
                host.AddServiceEndpoint(typeof(IOrder), new WSHttpBinding(),
                "http://localhost:7070/selfhost");

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

                host.Open(); //Open the Service


                //Consume the above WCF Service using ChannelFactory
                //
                WSHttpBinding binding = new WSHttpBinding();
                EndpointAddress address = new EndpointAddress("http://localhost:7070/selfhost");

                selfhostwcf.IOrder channel = new ChannelFactory<selfhostwcf.IOrder>(binding, address).CreateChannel();
                Console.WriteLine("Order Count={0}",channel.GetOrderCount());

                Console.ReadLine();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
          
        }
    }
}
 

Tags:Self Hosting WCF Service,ado.net in wcf service,
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