TanStackT
TanStack•4mo ago•
6 replies
few-sapphire

I keep creating infinite loops when redirecting in beforeLoad

I think I have a fundamental misunderstanding of how the route loader work. In consequence, I already created multiple infinite redirect loops with tanstack router 🙁

Here's an instance where this happens.

I navigate a user to the logout route:

export const Route = createFileRoute("/_form/logout")({
  component: RouteComponent,
  beforeLoad: async () => {
    await authClient.signOut();
    throw redirect({ to: "/login" });
  },
});

The logout route redirects to 
/login
 but removed the session.
export const Route = createFileRoute("/_form/login")({
  component: RouteComponent,
  validateSearch: SearchSchema,
  beforeLoad: async ({ search: { event }, context: { queryClient } }) => {
    const sessionResult = await queryClient.fetchQuery(sessionQueryOptions());
    if (sessionResult.data && sessionResult.data.session) {
      throw redirect({ to: "/hello" });
    }
  },
});

For some reason, the session is still active here (even though the cookie was removed). The `/hello route tries to get the session, does not see it and loops back to logout.

export const Route = createFileRoute("/hello")({
  beforeLoad: async () => {
    const sessionResult = await authClient.getSession();

    const session = sessionResult.data?.session;

    if (!session?.userId) {
      throw redirect({
        to: "/logout",
      });
    }
  },
  component: RouteComponent,
  errorComponent: ({ error }) => {
    return <div>{getErrorMessage(error)}</div>;
  },
});


Now, I'd assume that a loop would be impossible since the session is removed. However, I see the url bar flickering. The flicker is so fast that I'm pretty sure nothing is waiting for async actions to resolve.

I've been banging my head against this for a while now but it does not seem to make sense. Can anyone spot the issue here (if it's there)?
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