Calling a WCF service asynchronously

This recipe will describe how to create a WCF service, how to host it in a console application, how to make service metadata available to clients, and how to consume it in an asynchronous way.

Getting ready

To step through this recipe, you will need Visual Studio 2015. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter9\Recipe4.

How to do it...

To understand how to work with a WCF service, perform the following steps:

1. Start Visual Studio 2015. Create a new C# console application project.
2. Add references to the System.ServiceModel library. Right-click on the References folder in the project and select the Add reference… menu option. Add references to the System.ServiceModel library. You can use the search function in the reference manager dialog, as shown in the following screenshot:
   
3. In the Program.cs file, add the following using directives:

   using System;
   using System.ServiceModel;
   using System.ServiceModel...