Next.js Server-Side Rendering (SSR) Explained — Dynamic Pages

DodaTech Updated 2026-06-28 1 min read

In this tutorial, you will learn about Next.js Server. We cover key concepts, practical examples, and best practices to help you master this topic.

Next.js server-side rendering (SSR) generates HTML on each request, providing fresh data, authenticated content, and personalized pages that SSG cannot offer.

What You'll Learn

getServerSideProps for request-time data
Accessing request and response objects
Reading cookies and headers
Server-side redirects
SSR performance considerations

Why It Matters

SSR is essential for pages that need per-request data: user dashboards, search results, authenticated content, and pages that require cookie-based personalization.

// pages/dashboard.jsx
export default function Dashboard({ user, tasks }) {
  return (
    <div>
      <h1>Welcome, {user.name}</h1>
      <ul>
        {tasks.map(task => (
          <li key={task.id} className={task.done ? "done" : ""}>
            {task.title}
          </li>
        ))}
      </ul>
    </div>
  );
}

export async function getServerSideProps({ req, res, query, params }) {
  const token = req.cookies.session;
  if (!token) {
    return { redirect: { destination: "/login", permanent: false } };
  }

  const user = await db.getUserFromToken(token);
  if (!user) {
    return { redirect: { destination: "/login", permanent: false } };
  }

  const tasks = await db.getTasks(user.id);

  return {
    props: {
      user: { name: user.name, email: user.email },
      tasks,
    },
  };
}

Expected output: Each request renders the dashboard with the authenticated user's data. Unauthenticated users redirect to /login.

← Previous Next.js Static Site Generation (SSG) Explained — Pre-Built Pages Next → Next.js ISR Explained — Incremental Static Regeneration

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