What is the best way to write a news app for iOS?

Question

iOS

Good day everyone!
I was asked to write an application for reading news like (TJournal, Zuckenberg Call) from a certain site (the site is still under development), so I wanted to clarify how best to write an application.
Do I understand correctly that I need to write a small Rest api to get news in JSON format?
RSS is not suitable because it gives out only 20 news, and I need to write with endless scrolling (additional loading of news) By the way, does anyone know how to do this better?

Answer 1

Using the REST API, you get all the news for the first time and write to the local database.
Then you check for new news against the id or timestamp of the latest news and simply load it if the data has been updated.