Error handling is important, but if it obscures logic, it’s wrong.

What are retrofit call adapters used for?

How does CallAdapter work?

In this article, you will learn how can we do effective error handling with Kotlin Coroutine and Result API

Custom callAdapter in retrofit allows us to filter out various API error responses at a centralized level which reduces boilerplate code effectively. We will create our own Retrofit callAdapter to handle the API call Success and Error states.

We will use Kotlin Result API consistently in the whole application as a response of API calls.

You can find the full code of this project on github.

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