main.dart

@MaterialAutoRouter(
  replaceInRouteName: 'Screen,Route',
  routes: <AutoRoute>[
    AutoRoute(
      path: "/",
      page: AppStackScreen,
      redirect: () {
        if (!signedIn) {
          redirect('/signIn');
        }
      }
      children: [
        AutoRoute(path: "", page: HomeScreen),
        AutoRoute(path: "books", page: BooksListScreen),
      ],
    ),
    AutoRoute(path: "/signIn", page: SignInScreen),
    RedirectRoute(path: "*", redirectTo: "/")
  ],
)