How Caching Works - The Cache-Aside Pattern

Most apps don't hit their database for every read — they check a cache first. The cache-aside pattern is the most common way to do that, and it's deceptively simple until you run into cache misses, stale data, and invalidation. This video breaks it down step by step with animations. cache-aside, caching, system design, cache aside pattern, redis caching, cache invalidation, software engineering, backend development, distributed systems, lazy loading cache, AI , LLM