Redirection loop exception

[diegopq]

I want to handle the redirection when a user authenticates and also if the user decides to skip the login, I use bloc as a state manager. The redirection works only if the user is authenticated but it doesn't work when the user decides to skip the login and it throws me a "redirect loop" exception. what the exception tells me is that it goes from login to home and then to login, the code inside the redirect callback is as follows:

redirect: (state) {

      //indicates if the user is authenticated or not
      final userAutheticated =
          _authBloc.state.status == AppAuthStatus.authenticated &&
              _authBloc.state.userData.name.isNotEmpty &&
              _authBloc.state.userId.isNotEmpty ;

      if (_authBloc.state.skipLogin && state.location != '/home') {
        //if the login is skipped, it redirects to home
        return '/home';
      } else {
        //if it is in the initial route
        final isInLoginPage = state.location == '/login';

        //if the user is not authenticated and is not in the login route, it returns him to the login
        if (!userAutheticated) return isInLoginPage ? null : '/login';

       //If the user is authenticated but is on the login page, it sends him to the home
        if (isInLoginPage) return '/home';
      }
      return null;
    },
    refreshListenable: GoRouterRefreshStream(_authBloc.stream),

This is the exception that is thrown:

flutter: ══╡ EXCEPTION CAUGHT BY GOROUTER ╞══════════════════════════════════════════════════════════════════
flutter: The following _Exception was thrown Exception during GoRouter navigation:
flutter: Exception: redirect loop detected: /login => /home => /login
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #0      GoRouterDelegate._getLocRouteMatchesWithRedirects.redirected
package:go_router/src/go_router_delegate.dart:299
flutter: #1      GoRouterDelegate._getLocRouteMatchesWithRedirects
package:go_router/src/go_router_delegate.dart:318
flutter: #2      GoRouterDelegate._go
package:go_router/src/go_router_delegate.dart:245
flutter: #3      GoRouterDelegate.refresh
package:go_router/src/go_router_delegate.dart:187
flutter: #4      ChangeNotifier.notifyListeners
package:flutter/…/foundation/change_notifier.dart:308
flutter: #5      new GoRouterRefreshStream.<anonymous closure>
package:go_router/src/go_router_refresh_stream.dart:29
flutter: (elided 25 frames from dart:async)
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════

I don't know why it tries to redirect to login when login is skipped

[leoshusar]

User goes to /login. Skips authentication, it redirects him to /home. Then if (_authBloc.state.skipLogin && state.location != '/home') is if (true && false), so the else block runs.

final isInLoginPage = state.location == '/login'; is false, he's not on /login now, he was redirected to /home. Lastly if (!userAutheticated) return isInLoginPage ? null : '/login'; is if (!false) return false ? null : /login - this part redirects him back.

Did I explain it good enough?

[diegopq]

User goes to /login. Skips authentication, it redirects him to /home. Then if (_authBloc.state.skipLogin && state.location != '/home') is if (true && false), so the else block runs.

final isInLoginPage = state.location == '/login'; is false, he's not on /login now, he was redirected to /home. Lastly if (!userAutheticated) return isInLoginPage ? null : '/login'; is if (!false) return false ? null : /login - this part redirects him back.

Did I explain it good enough?

yes