Server Components
Understanding React Server Components in Next.js.
Learning Goals
The Core Concept
By default, Next.js App Router uses React Server Components (RSC). These components are rendered exclusively on the server. They reduce the amount of JavaScript sent to the browser, leading to faster page loads. You can also securely access backend resources like databases directly inside them.
Visual guide
Next.js concept flow
A simple original diagram to connect the lesson idea with real project flow.
Code & Implementation
// app/page.tsx (Server Component by default)
async function getData() {
const res = await fetch('https://api.example.com/data');
return res.json();
}
export default async function Page() {
const data = await getData();
return (
<main>
<h1>Server Data:</h1>
<pre>{JSON.stringify(data, null, 2)}</pre>
</main>
);
}Expected Output
Server Data:
{
"id": 1,
"name": "Test"
}SEO Tool Website
Hands-on practice task
The Challenge
Build an SEO analyzer that fetches live data on the server without exposing API keys to the client.
Helpful Hints
- •Keep your fetching logic in a Server Component. Pass only the parsed results to the UI.
Quick Knowledge Check
Can I use onClick in a Server Component?
Continue Learning
Next steps after this lesson
Build an SEO analyzer that fetches live data on the server without exposing API keys to the client.
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