Cache widget

[wesleyrob9]

Hi! I have a question about the caching system in Stac.

I'm building a Flutter app using Stac for Server-Driven UI, but I am not using Stac Cloud. I have my own backend API (Python) that returns the Stac JSON screens.

I would like to use the built-in Stac caching strategy, especially StacCacheConfig with StacCacheStrategy.cacheFirst.

For example:

await Stac.initialize(
cacheConfig: const StacCacheConfig(
strategy: StacCacheStrategy.cacheFirst,
maxAge: Duration(days: 7),
),
);

My question is:

Can the built-in Stac cache (StacCacheConfig / StacCacheStrategy) be used with a custom backend/API instead of Stac Cloud?

If yes, how should I configure the custom API URL so that Stac fetches the screen from my backend and stores/reads the response using the built-in cache?

If the built-in cache is only intended for Stac Cloud screens, what is the recommended way to implement cacheFirst for a custom backend while still using Stac to render the screens?

Thanks!