http-cache

You can implement stale-while-revalidate and offline fallback by generating an HTTP caching layer that uses disk and memory caches with LRU eviction, providing immediate cached responses while updating data in the background.

ETag and Last-Modified validation works by sending conditional requests with If-None-Match headers to check if cached data is stale, minimizing data transfer by returning a lightweight response when the server content remains unchanged.

The best way to enforce per-endpoint Cache-Control policies is to generate a caching layer that parses directives like max-age and no-store, allowing you to tailor specific caching behaviors for each individual API endpoint via configuration.

Yes, you can integrate an HTTP caching layer with an existing API client by using a decorator pattern, which wraps your current networking code to intercept requests and apply cache policies without requiring a full rewrite.

You need disk and memory caching with LRU eviction when managing HTTP requests in mobile apps or web clients, as it efficiently stores retrieved data locally to reduce redundant API calls and support offline behavior.

Your app makes redundant API calls because it lacks a proper HTTP caching layer that parses Cache-Control headers and stores responses in a disk and memory cache, failing to serve repeated requests from local storage.