redirect

The redirect function allows you to redirect the user to another URL. If you need to redirect to a 404, you can use the notFound function.

redirect()

Invoking the redirect() function throws a NEXT_REDIRECT error and terminates rendering of the route segment in which it was thrown. redirect() can be called with a relative or an absolute URL.

import { redirect } from 'next/navigation';
 
async function fetchTeam(id) {
  const res = await fetch('https://...');
  if (!res.ok) return undefined;
  return res.json();
}
 
export default async function Profile({ params }) {
  const team = await fetchTeam(params.id);
  if (!team) {
    redirect('/login');
  }
 
  // ...
}

Note: redirect() does not require you to use return redirect() due to using the TypeScript never type.