Self hosted windows Service .

Self hosted windows Service .

• Open vs 2008 --> File--> New --> Project
• Select Windows Service Template.

• Name the service as "SelfHostedService".
• Now Add Class and Interface and name them "Calculator" and "ICalculator" respectively.

• Add the following code in ICalculator.cs
• Add references : using System.ServiceModel and using System.ServiceModel.Web . 

// Code for ICalculator.cs

 namespace SelfHostedService

{

    [ServiceContract]

    public interface ICalculator 

    {

        [OperationContract]

        [WebInvoke(Method = "GET", UriTemplate = "/Add?num1={num1}&num2{num2}",           ResponseFormat = WebMessageFormat.Xml)]

        string Add(string num1, string num2);

        [OperationContract]

        [WebInvoke(Method = "GET", UriTemplate = "/Sub?num1={num1}&num2{num2}", ResponseFormat = WebMessageFormat.Xml)]

        string Sub(string num1, string num2);

    }

}

//

// Code for Calculator.cs

namespace SelfHostedService

{

    public class Calculator : ICalculator

    {

        public int Add(string num1, string num2)

        {

            int addition = Convert.ToInt32(num1) + Convert.ToInt32(num2);

            return addition;

        }

        public int Sub(string num1, string num2)

        {

            int addition = Convert.ToInt32(num1) - Convert.ToInt32(num2);

            return addition;

        }

    }

}

//

• Now set the configuration for REST service in App Config file.
• Add Web configuration file to the project and rename it to App.config

• Remove everything inside in App.config and add the below code.

//Code for App.config

<system.serviceModel>

    <services>

      <!-- This section is optional with the new configuration model

           introduced in .NET Framework 4. -->

      <service behaviorConfiguration="CalculatorServiceBehavior" name="SelfHostedService.Calculator">

        <endpoint address=""  binding="webHttpBinding" behaviorConfiguration="web" contract="SelfHostedService.ICalculator" />

      </service>

    </services>

    <behaviors>

      <serviceBehaviors>

        <behavior name="CalculatorServiceBehavior">

          <serviceMetadata httpGetEnabled="true"/>

          <serviceDebug includeExceptionDetailInFaults="False"/>

        </behavior>

      </serviceBehaviors>

      <endpointBehaviors>

        <behavior name="web">

          <webHttp/>

        </behavior>

      </endpointBehaviors>

    </behaviors>

  </system.serviceModel>

//

• Now open Service1.cs .
• Add the following references : System.ServiceProcess ,System.ServiceModel ,System.Configuration.

// Code for Service1.cs

        ServiceHost serviceHost = null;

        protected override void OnStart(string[] args)

        {

           

            string serviceAddress = "http://localhost/2001";

            Uri baseAddress = new Uri(serviceAddress);

            if (serviceHost != null)

            {

                serviceHost.Close();

            }

            // Create a ServiceHost for the CalculatorService type and 

            // provide the base address.

            serviceHost = new ServiceHost(typeof(Calculator), baseAddress);

            // Open the ServiceHostBase to create listeners and start 

            // listening for messages.

            serviceHost.Open();

        }

        protected override void OnStop()

        {

            if (serviceHost != null)

            {

                serviceHost.Close();

            }

        }

//

• Install the service.
• Open browser and type the Url : "http://localhost/2005/Add?num1=10&num2=20"