If you are looking for a library, which will help you to integrate external API in your mobile application, or a back-end service written in Java or Kotlin, then Retrofit is definitely worth a try. Let’s start by answering the question: what exactly the Retrofit is? It is a type-safe HTTP client for Android and Java. I will walk you step by step through its features, capabilities and a few obstacles you may encounter when using it. This time, I would like to show you how to use Retrofit 2 with Kotlin.
