我想从Hive中检索sessionToken和authToken，然后将其放入GraphQLClient

• • 主省道**

GetIt sl = GetIt.instance;

void main() async {
  // Register Service locator
  
  await initAuthServiceLocator(sl);
  ....
  await sl.allReady();
  runApp(...);
}

• • 初始化身份验证服务定位器**

Future<void> initAuthServiceLocator(
  GetIt sl, {
  isUnitTest = false,
}) async {
  if (!isUnitTest) {
    await Hive.initFlutter();
    ....
   sl.registerLazySingleton<Future<GraphQLClient>>(() => GraphQLClientGenerator().getClient());

  ....
}

• • GraphQL客户端生成器**

class GraphQLClientGenerator {
      GraphQLClientGenerator();
    
      Future<GraphQLClient> getClient() async {
        final authUserBox = await Hive.openLazyBox('authUserBox');
    
        var box = await authUserBox.getAt(0);
    
        debugPrint(box);
    
        final HttpLink httpLink = HttpLink(
            'https://xxx/graphqlmf?session_token="Get from box");
        final AuthLink authLink =
            AuthLink(getToken: () async => "Get from box");
        final Link link = authLink.concat(httpLink);
    
        return GraphQLClient(link: link, cache: GraphQLCache());
      }
    
    }

我是这样注册的

sl.registerLazySingleton<Future<GraphQLClient>>(() => GraphQLClientGenerator().getClient());

• • 错误**

════════ Exception caught by widgets library ═══════════════════════════════════
The following assertion was thrown building KeyedSubtree-[GlobalKey#1bbd2]:
Object/factory with  type GraphQLClient is not registered inside GetIt. 
(Did you accidentally do GetIt sl=GetIt.instance(); instead of GetIt sl=GetIt.instance;
Did you forget to register it?)
'package:get_it/get_it_impl.dart':
get_it_impl.dart:1
Failed assertion: line 372 pos 7: 'instanceFactory != null'

注册GraphQLClient时好像不能添加Future。如果我想在GraphQLClient中调用Hive，因为它需要async-await，正确的方法是什么？

• • 编辑**

等我换成

sl.lazySingletonAsync<GraphQLClient>(GraphQLClientGenerator().getClient);

• • 新错误**

════════ Exception caught by widgets library ═══════════════════════════════════
The following assertion was thrown building KeyedSubtree-[GlobalKey#6665b]:
You tried to access an instance of GraphQLClient that is not ready yet
'package:get_it/get_it_impl.dart':
get_it_impl.dart:1
Failed assertion: line 404 pos 9: 'instanceFactory.isReady'

我已经在main.dart中添加了await sl.allReady();，但仍然得到这个问题。