diligent-next/pages/auth/index.js

import { getSession } from 'next-auth/react';
import { useRouter } from 'next/router';
import { useEffect } from 'react';
import LoginForm from '../../components/forms/login/LoginForm';
import { BASE_PAGE } from '../../constants/pages';

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

  useEffect(() => {
    getSession().then((session) => {
      if (session) {
        router.replace(BASE_PAGE);
      }
    });
  }, [router]);

  return <LoginForm />;
};

export default AuthPage;