What is the correct way to use Retrofit when there are multiple data sources?

Question

Android

For each, I created a separate instance of Retrofit, maybe different headers, interceptors, etc. Now there are a couple more. How to make adding easier? Producing Retrofits is somehow wrong

Answer 1

You need to set up the builder and reuse it, each time creating new retrofit instances for different URLs from one builder.

Answer 2

Each of your data sources has its own base URL. Each source has its own API. Naturally, you will have to describe the interfaces for each of these APIs and create a separate Retrofit object for each base URL.
There is absolutely nothing wrong here.