advanced~2h
Caching with Redis
Your REST API works and is secured. Now it needs to survive real traffic without hammering Postgres for the same query a thousand times a second.
Learning objectives
- Beginner: @Cacheable on a single, read-heavy, rarely-changing lookup endpoint with a conservative TTL.
- Intermediate: Matching @CacheEvict on every write path that touches cached data, verified by an integration test that writes then re-reads and confirms fresh data.
- Advanced: A deliberate TTL + eviction strategy tuned per data type based on actual staleness tolerance (e.g. seconds for pricing data, hours for rarely-changing catalog metadata), monitored via cache hit-rate metrics.
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Caching with Redis