Created
April 21, 2022 11:21
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client main - GRPC Chat App with Flutter and Dart
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| void main() async { | |
| WidgetsFlutterBinding.ensureInitialized(); | |
| final settingsController = SettingsController(SettingsService()); | |
| await settingsController.loadSettings(); | |
| final channel = ClientChannel( | |
| EnvConfig.grpcAddress, | |
| port: EnvConfig.grpcPort, | |
| options: const ChannelOptions( | |
| credentials: ChannelCredentials.insecure(), | |
| ), | |
| ); | |
| final ChatMessagingServiceClient grpcClient = | |
| ChatMessagingServiceClient(channel); | |
| final storage = await HydratedStorage.build( | |
| storageDirectory: kIsWeb | |
| ? HydratedStorage.webStorageDirectory | |
| : await getTemporaryDirectory()); | |
| HydratedBlocOverrides.runZoned( | |
| () => runApp( | |
| MyAppProviderWrapper( | |
| grpcClient: grpcClient, | |
| child: MyApp( | |
| settingsController: settingsController, | |
| ), | |
| ), | |
| ), | |
| storage: storage, | |
| ); | |
| } | |
| class EnvConfig { | |
| static const int grpcPort = int.fromEnvironment( | |
| 'GRPC_PORT', | |
| defaultValue: 54242, | |
| ); | |
| static const String grpcAddress = String.fromEnvironment( | |
| 'GRPC_ADDR', | |
| defaultValue: 'localhost', | |
| ); | |
| } | |
| class MyAppProviderWrapper extends StatelessWidget { | |
| const MyAppProviderWrapper({ | |
| Key? key, | |
| required this.child, | |
| required this.grpcClient, | |
| }) : super(key: key); | |
| final Widget child; | |
| final ChatMessagingServiceClient grpcClient; | |
| @override | |
| Widget build(BuildContext context) { | |
| return MultiBlocProvider( | |
| providers: [ | |
| BlocProvider( | |
| create: (context) => MessageIncomingCubit(grpcClient: grpcClient), | |
| ), | |
| BlocProvider( | |
| create: (context) => MessageSendCubit(grpcClient: grpcClient), | |
| ), | |
| BlocProvider( | |
| create: (context) => AppCubit(), | |
| ), | |
| ], | |
| child: child, | |
| ); | |
| } | |
| } |
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