Caching- Learning Backend from First Principle
Caching from First Principles: The Ultimate Guide for Backend Developers 🚀 If you've ever been amazed by the speed of Google Search, the seamless streaming of Netflix, or the instant updates on X (Twitter), you've experienced the power of a fundamental engineering concept: caching . For backend developers, understanding caching isn't just a "nice-to-have"—it's an absolute necessity for building fast, scalable, and resilient applications. This guide will break down caching from the ground up, covering everything from high-level concepts to the practical mechanics you'll use in your day-to-day work, leaving no stone unturned. What Exactly Is Caching? Let's start with two definitions from the video, from simple to technical. In one sentence: Caching is a mechanism using which we decrease the amount of time and effort it takes to perform some amount of work. This "work" could be a complex database query, a heavy computation, or transferring a la...