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Cache and Dedupe

Cache strategy

  • Cache applies to GET requests.
  • Key format: METHOD::resolvedURL::stable(params).
  • Supports TTL expiration.
  • Supports stale-while-revalidate (SWR).

Nitro + fallback

  • Nitro cache adapter is used when:
    • react-native-nitro-modules is installed in the app, and
    • NitroCache HybridObject is registered on native side.
  • Fallback to JS Map cache is automatic when Nitro is unavailable.

Dedupe behavior

  • In-flight dedupe applies to identical GET requests only.
  • Non-GET requests are not deduped to avoid side-effect collisions.

Manual invalidation

api.invalidate(); // all known cache keys
api.invalidate({ method: 'GET', url: '/users' });
api.clearCache();

SWR notes

When SWR is enabled and a cached entry is stale:

  • stale value is returned immediately
  • background request refreshes cache asynchronously

Use SWR for low-latency read-heavy screens where eventual freshness is acceptable.