Mastering React Server Components

React Server Components (RSCs) represent one of the most significant shifts in the React ecosystem since Hooks. They challenge our traditional understanding of where our components run and how they fetch data. Unlike traditional React components that run exclusively on the client, RSCs execute on the server, producing a description of the UI that can be streamed to the client. This approach has profound implications for performance, data fetching, and bundle sizes. In this post, we will explore the core concepts behind RSCs, understand their benefits, and walk through practical examples of how to integrate them into a Next.js application. We'll cover topics like the server-client boundary, patterns for data fetching, and how to combine Server and Client Components to build rich, interactive experiences with minimal client-side JavaScript.