How to ? - API for android app (flutterflow)

[Digit_PaxMentis]

Hello, folks !

... as content creator we build a brand, having started with printable apparels (print-on-demand). Our focus as such is "content" in different form and purpose, and so are our print-on-demand textiles (e.g. political statement, educational content etc. ...).

Developing the brand further on we like to extend our content for an inter-active dialogue into an app (android, iOS, web application), which shall service our customers complementary to the shopping store.

Naturally we target at an easy handling of the app ...

- download and registration for using the app with the shopify account data
- access to content inside the app (which we offer also in the blog section of our news section of the shopify store)
- access to special promotions via promotion banner inside the app with link to the Shopify store (product page, bundles).
- bookmark function in the app (= wishlist in our shopify store)
- A.I. chat interface for Q&A with an A.I. specifically trained about our own content

We have setup a test project on FlutterFlow, to program the basic function and features ... the WYSIWYG editor of FlutterFlow can connect to dynamic content via databases (see YT video - Flutterflow and database connection  ).

Where to get more details about what is possible with the API of our Shopify Store database ? - E.g. can our customers register on our website in the shopify store and for using our app can also take the same login data ?

Tks in advance for giving orientation.