Caching in Rails APIs: Redis, HTTP Cache, and Stale-While-Revalidate
1 min read
Caching can halve load—or cause subtle security bugs. I layer Redis, HTTP cache, and SWR-style thinking for partner-facing JSON.
What you'll learn
- Cache keys and TTLs that survive deploys
- What never belongs in a public CDN
- Invalidation rules that don’t require a pager
Next steps
Document cache semantics next to the endpoint—not only in Redis.