HTTP_GET Enabled Metadata

      We will use Service Behavior to publish the metadata using HTTP-GET. This can be configures either administratively or programmatically. Http and Https can expose by appending "?wsdl" to the end of the service address. For example service address is http://localhost:9090/MyCalulatorService ,HTTP-Get metadata address is given by http://localhost:9090/MyCalulatorService?wsdl.

Administrative (Configuration file):

       In the below mention configuration information, you can find the behavior section in the ServiceBehavior. You can expose the metadata using ServiceMetadata node with httpGetEnable='True'. 

<system.serviceModel>

   <services>

            <service behaviorConfiguration="Service Behavior" name="MyService">

               <endpoint address="http://localhost/IISHostedService/MyService.svc"

                binding="wsHttpBinding" contract="IMyService">

                        <identity>

                        <dns value="localhost"/>

                        </identity>

                </endpoint>

            </service>

  </services>

  <behaviors>

    <service Behaviors>

            <behavior name="Service Behavior">

                         <!-Setting httpGetEnabled you can publish the metadata -->

                        <service Metadata httpGetEnabled="true"/>

                        </behavior>

                </service Behaviors>

   </behaviors>    
system.serviceModel>


Programming Model:

       Using ServiceMetadataBehavior you can enable the metadata exchange. In the following code, I have created the ServiceMetadataBehavior object and assigned HttpGetEnabled property to true. Then you have to add the behavior to host description as shown. This set of code will publish the metadata using HTTP-GET.

       Using ServiceMetadataBehavior you can enable the metadata exchange. In the following code, I have created the ServiceMetadataBehavior object and assigned HttpGetEnabled property to true. Then you have to add the behavior to host description as shown. This set of code will publish the metadata using HTTP-GET.

      //Create a URI to serve as the base address

            Uri httpUrl = new Uri("http://localhost:8090/MyService/SimpleCalculator");

            //Create ServiceHost

            ServiceHost host = new 

            ServiceHost(typeof(MyCalculatorService.SimpleCalculator), httpUrl);

            //Add a service endpoint

            host.AddServiceEndpoint

            (typeof(MyCalculatorService.ISimpleCalculator), new WSHttpBinding(), "");

            //Enable metadata exchange

            ServiceMetadataBehavior smb = new ServiceMetadataBehavior();

            //Enable metadata exchange using HTTP-GET

            smb.HttpGetEnabled = true;

            host.Description.Behaviors.Add(smb);

            //Start the Service

            host.Open();

            Console.WriteLine("Service is host at " + DateTime.Now.ToString());

            Console.WriteLine("Host is running... Press  key to stop");

            Console.ReadLine();