So I have plan to publish couple of Shopify apps, and for the most part figured out the backend logic and DB handling. What stumbles me most, and honestly I found almost no documentation or examples about, is once I have app setup complete, I want some data from these to be injected to Shopify website pages. There are some vague references to App Proxy and/or Theme App Extension as solution, but I can't find any details or working examples about it.
Further detail entails to this: in one of the apps, I have these cool "group" objects that contains links to various users who registered for those groups. I am able to fetch these objects and all relevant data associated to Shopify app admin area. Next, I want to be able to display these groups on the web page in neat way. I have tried few things including some custom JS, but its not working.
Any helpful examples, tutorial links, documentation, direct code snippets would be extremely helpful.