VTEX Fetch Cache (SWR In-Memory)

Server-side SWR cache for all VTEX GET API responses. Ported from deco-cx/deco runtime/fetch/fetchCache.ts and adapted for @decocms/apps on TanStack Start.

When to Use This Skill

• Adding SWR caching to new VTEX API calls
• Understanding why a VTEX response is served stale
• Debugging cache hit/miss behavior
• Tuning TTL for specific endpoints
• Understanding the relationship between fetchWithCache, vtexCachedFetch, and createCachedLoader

Architecture