rustclan•2y ago

TRPC global loading page

Hey. With trpc/nextjs I'm wondering if its possible to have a global loading context/state which is used across my whole app, whenever a TRPC endpoint .isFetched property is false, it will display a "loading" symbol. Currently I have to do something like this on every page:

  if (!getMailQuery.isFetched) {
    return (
      <AppShell navbar={<AdminNavBar selected={6} />}>
        <PublicLoadingScreen />
      </AppShell>
    );
  }
return (pageContent...)

  if (!getMailQuery.isFetched) {
    return (
      <AppShell navbar={<AdminNavBar selected={6} />}>
        <PublicLoadingScreen />
      </AppShell>
    );
  }
return (pageContent...)

3 Replies

Nick•2y ago

You could use something like this https://tanstack.com/query/v4/docs/react/reference/useIsFetching

useIsFetching | TanStack Query Docs

useIsFetching is an optional hook that returns the number of the queries that your application is loading or fetching in the background (useful for app-wide loading indicators). `tsx

Nick•2y ago

This is also essentially the problem that Suspense is solving, so you could enable Suspense and use that

rustclan•2y ago

Thank you very much 🙂