Complex component with API calls example

I’m searching for a complex component example that includes also API calls. Something like on the homepage of Does someone know one that he can share with me?

Because API calls and how to compose/split them inside of so many single components that are merged into a big one, is currently a big question mark for me. So I’m hoping to understand a bit better what is the best practice here. (Especially if the components (And also the data) coming from different domains/teams.