Managing API Cache

Overview

Implement intelligent API response caching using Redis, Memcached, or in-memory stores with cache key generation, TTL management, cache invalidation strategies, and HTTP cache headers. Support read-through, write-through, and cache-aside patterns with tag-based invalidation for related resources and stale-while-revalidate behavior.

Prerequisites

• Redis 6+ or Memcached for distributed caching (required for multi-instance deployments)
• Cache client library: ioredis (Node.js), redis-py (Python), or Lettuce (Java)
• CDN with cache control support for edge caching (CloudFront, Cloudflare, Fastly) -- optional
• Monitoring for cache hit/miss ratios and eviction rates
• Understanding of data freshness requirements per endpoint

Instructions