Mastering Xamarin.Forms

Creating a base HTTP service

In order for an app to communicate with an API via HTTP, it needs an HTTP library. Because we are using .NET and C# to build a Xamarin.Forms app, we can leverage a library within the .NET Framework called System.Net.Http.HttpClient. The .NET HttpClient provides a mechanism to send and receive data via standard HTTP methods such as GET and POST.

Continuing to keep separation and abstraction key to our app architecture, we will want to keep the specific logic related to the HttpClient separated from the rest of the app. In order to do this, we will write a base service class in our core library that will be responsible for handling HTTP communications in a generic way. This provides a building block for any domain-specific ...