momo/lib/material/router.dart

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:momo/material/home.dart';
import 'package:momo/material/login.dart';

class MyMaterialRouterConfig {
  late GoRouter router;

  MyMaterialRouterConfig(String? token) {
    router = GoRouter(
      routes: <RouteBase>[
        GoRoute(
            path: '/',
            builder: (BuildContext context, GoRouterState state) {
              return const HomePage();
            },
            redirect: (BuildContext context, GoRouterState state) {
              if (token == null || token.isEmpty) {
                return '/login';
              }
              return null;
            }),
        GoRoute(
          path: "/login",
          builder: (BuildContext context, GoRouterState state) {
            return const LoginPage();
          },
        )
      ],
    );
  }
}