If you create a new project, WCF Service Application C#, it makes a web service and starts it up.
But there is no information on how to actually communicate with it from a client, or how to even write that.
What does the UWP client look like which will communicate with that service?
Create a default WCF Service application and start it up as you have already did.
Create a Universal Windows Blank App by following Create a "Hello, world" app (XAML) in the same solution.
Add following code to a button click event handle.Then run uwp you will see the
GetData
Result.