Auth-guards in Next.js frontend

Redirecting if session or onboarding is needed
A bit outdated. React 13 brought major changes

Session required

React
LoginRequired.tsx
import {useRouter} from 'next/router';
import {useSession} from 'next-auth/client';
import {useEffect} from 'react';
import {useQueryClient} from 'react-query';
 
import {Spinner} from '@/f/components/spinner';
import {SIGN_IN_PAGE} from '@/f/constants/pages';
 
export const LoginRequired: React.FC = ({children}) => {
  const queryClient = useQueryClient();
  const [session, isSessionLoading] = useSession();
  const router = useRouter();
 
  useEffect(() => {
    if (!session && !isSessionLoading) {
      queryClient.clear();
      router.push(SIGN_IN_PAGE);
    }
  }, [session, isSessionLoading, router, queryClient]);
 
  if (isSessionLoading) {
    return (
      <div className="flex flex-col items-center min-h-screen mt-16 pt-16 space-y-4">
        <Spinner />
        <span className="text-sm text-gray-600">Getting things ready..</span>
      </div>
    );
  }
 
  // prevent any flicker
  if (!session) {
    return null;
  }
 
  return <>{children}</>;
};

Membership required

React
MembershipRequired.tsx
import {useRouter} from 'next/router';
import {useEffect} from 'react';
 
import {ONBOARDING_PAGE} from '@/f/constants/pages';
import {useCurrentUser} from '@/f/requests/current-user';
 
export const MembershipRequired: React.FC = ({children}) => {
  const {user} = useCurrentUser();
  const router = useRouter();
 
  useEffect(() => {
    if (user && !user.membership) {
      router.push(ONBOARDING_PAGE);
    }
  }, [user, router]);
 
  return <>{children}</>;
};