What patterns exist for ui rendering?

Question

JavaScript

There is a huge json/xml that forms a backend that stores everything: Tabs, controls, widgets, buttons, business entities. According to this json / xml, it is necessary that the ui is rendered and it is desirable that reactivity is preserved.
I don’t see any solutions other than crutches and hardcode, but I know it should be. Tell me how to google

Answer 1

I once wrote a form for 300 fields with a configurator, I also banged the entire structure in JSON, I assembled pages for each element with a template and scripts.