redirect if not logged in next js

To redirect a user if they are not logged in using Next.js, you can follow these steps:

1. Import the useRouter hook from the next/router module. This hook allows you to access the Next.js router object.
2. Use the useEffect hook to check if the user is logged in when the component mounts. This hook takes a callback function that will be executed when the component mounts.
3. Inside the callback function, use the useRouter hook to get the pathname property from the router object. This property represents the current URL path.
4. Check if the user is logged in. You can do this by checking if there is a logged-in user object or a valid authentication token in your application's state or context.
5. If the user is not logged in, use the push method from the router object to redirect the user to the login page or any other desired page. Pass the path to the desired page as an argument to the push method.

Here's an example code snippet that demonstrates these steps:

import { useEffect } from 'react';
import { useRouter } from 'next/router';

const MyComponent = () => {
  const router = useRouter();

  useEffect(() => {
    const { pathname } = router;

    // Check if the user is logged in
    if (!isLoggedIn) {
      // Redirect the user to the login page
      router.push('/login');
    }
  }, []);

  return (
    <div>
      {/ Your component content /}
    </div>
  );
};

export default MyComponent;

In this example, the MyComponent component uses the useRouter hook to access the router object. It then uses the useEffect hook to check if the user is logged in when the component mounts. If the user is not logged in, it redirects the user to the login page using the push method from the router object.

Remember to replace isLoggedIn with your actual logic for checking if the user is logged in, and update the redirect path as needed.