Mastering React Server Components

React Server Components (RSCs) have fundamentally changed how we build React applications. By executing components exclusively on the server, we can drastically reduce the amount of JavaScript sent to the client.

Interactive Example: Client vs Server

Let's look at how data fetching differs. With Server Components, you can fetch data directly without useEffect or third-party libraries:

// This component runs ONLY on the server
export default async function UserProfile({ userId }) {
  const user = await db.user.findUnique({ where: { id: userId } });
  
  return (
    <div className="profile-card">
      <h2>{user.name}</h2>
      <p>{user.bio}</p>
    </div>
  );
}

Test Your Knowledge

Happy coding!