config rust and flutter steam

2024-08-30 18:12:39 +00:00 · 2021-07-21 15:43:05 +08:00 · 2021-07-21 15:43:05 +08:00 · 892526c2f9
commit 892526c2f9
parent 777b3a68ed
68 changed files with 1744 additions and 102 deletions
--- a/app_flowy/analysis_options.yaml
+++ b/app_flowy/analysis_options.yaml
@ -15,6 +15,7 @@ analyzer:
    - "**/*.g.dart"
    - "**/*.freezed.dart"
    - "packages/flowy_editor/**"
+    - "packages/flowy_infra_ui/**"
    
 linter:
  # The lint rules applied to this project can be customized in the
--- a/app_flowy/lib/home/application/app/app_bloc.dart
+++ b/app_flowy/lib/home/application/app/app_bloc.dart
@ -0,0 +1,20 @@
+import 'package:app_flowy/home/domain/i_app.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/app_create.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/errors.pb.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:dartz/dartz.dart';
+
+part 'app_event.dart';
+part 'app_state.dart';
+part 'app_bloc.freezed.dart';
+
+class AppBloc extends Bloc<AppEvent, AppState> {
+  final IApp iAppImpl;
+  AppBloc(this.iAppImpl) : super(AppState.initial());
+
+  @override
+  Stream<AppState> mapEventToState(
+    AppEvent event,
+  ) async* {}
+}
--- a/app_flowy/lib/home/application/app/app_bloc.freezed.dart
+++ b/app_flowy/lib/home/application/app/app_bloc.freezed.dart
@ -0,0 +1,361 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides
+
+part of 'app_bloc.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more informations: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+/// @nodoc
+class _$AppEventTearOff {
+  const _$AppEventTearOff();
+
+  AppsReceived appsReceived(Either<List<App>, WorkspaceError> appsOrFail) {
+    return AppsReceived(
+      appsOrFail,
+    );
+  }
+}
+
+/// @nodoc
+const $AppEvent = _$AppEventTearOff();
+
+/// @nodoc
+mixin _$AppEvent {
+  Either<List<App>, WorkspaceError> get appsOrFail =>
+      throw _privateConstructorUsedError;
+
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function(Either<List<App>, WorkspaceError> appsOrFail)
+        appsReceived,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function(Either<List<App>, WorkspaceError> appsOrFail)?
+        appsReceived,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AppsReceived value) appsReceived,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AppsReceived value)? appsReceived,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $AppEventCopyWith<AppEvent> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AppEventCopyWith<$Res> {
+  factory $AppEventCopyWith(AppEvent value, $Res Function(AppEvent) then) =
+      _$AppEventCopyWithImpl<$Res>;
+  $Res call({Either<List<App>, WorkspaceError> appsOrFail});
+}
+
+/// @nodoc
+class _$AppEventCopyWithImpl<$Res> implements $AppEventCopyWith<$Res> {
+  _$AppEventCopyWithImpl(this._value, this._then);
+
+  final AppEvent _value;
+  // ignore: unused_field
+  final $Res Function(AppEvent) _then;
+
+  @override
+  $Res call({
+    Object? appsOrFail = freezed,
+  }) {
+    return _then(_value.copyWith(
+      appsOrFail: appsOrFail == freezed
+          ? _value.appsOrFail
+          : appsOrFail // ignore: cast_nullable_to_non_nullable
+              as Either<List<App>, WorkspaceError>,
+    ));
+  }
+}
+
+/// @nodoc
+abstract class $AppsReceivedCopyWith<$Res> implements $AppEventCopyWith<$Res> {
+  factory $AppsReceivedCopyWith(
+          AppsReceived value, $Res Function(AppsReceived) then) =
+      _$AppsReceivedCopyWithImpl<$Res>;
+  @override
+  $Res call({Either<List<App>, WorkspaceError> appsOrFail});
+}
+
+/// @nodoc
+class _$AppsReceivedCopyWithImpl<$Res> extends _$AppEventCopyWithImpl<$Res>
+    implements $AppsReceivedCopyWith<$Res> {
+  _$AppsReceivedCopyWithImpl(
+      AppsReceived _value, $Res Function(AppsReceived) _then)
+      : super(_value, (v) => _then(v as AppsReceived));
+
+  @override
+  AppsReceived get _value => super._value as AppsReceived;
+
+  @override
+  $Res call({
+    Object? appsOrFail = freezed,
+  }) {
+    return _then(AppsReceived(
+      appsOrFail == freezed
+          ? _value.appsOrFail
+          : appsOrFail // ignore: cast_nullable_to_non_nullable
+              as Either<List<App>, WorkspaceError>,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AppsReceived implements AppsReceived {
+  const _$AppsReceived(this.appsOrFail);
+
+  @override
+  final Either<List<App>, WorkspaceError> appsOrFail;
+
+  @override
+  String toString() {
+    return 'AppEvent.appsReceived(appsOrFail: $appsOrFail)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other is AppsReceived &&
+            (identical(other.appsOrFail, appsOrFail) ||
+                const DeepCollectionEquality()
+                    .equals(other.appsOrFail, appsOrFail)));
+  }
+
+  @override
+  int get hashCode =>
+      runtimeType.hashCode ^ const DeepCollectionEquality().hash(appsOrFail);
+
+  @JsonKey(ignore: true)
+  @override
+  $AppsReceivedCopyWith<AppsReceived> get copyWith =>
+      _$AppsReceivedCopyWithImpl<AppsReceived>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function(Either<List<App>, WorkspaceError> appsOrFail)
+        appsReceived,
+  }) {
+    return appsReceived(appsOrFail);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function(Either<List<App>, WorkspaceError> appsOrFail)?
+        appsReceived,
+    required TResult orElse(),
+  }) {
+    if (appsReceived != null) {
+      return appsReceived(appsOrFail);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AppsReceived value) appsReceived,
+  }) {
+    return appsReceived(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AppsReceived value)? appsReceived,
+    required TResult orElse(),
+  }) {
+    if (appsReceived != null) {
+      return appsReceived(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AppsReceived implements AppEvent {
+  const factory AppsReceived(Either<List<App>, WorkspaceError> appsOrFail) =
+      _$AppsReceived;
+
+  @override
+  Either<List<App>, WorkspaceError> get appsOrFail =>
+      throw _privateConstructorUsedError;
+  @override
+  @JsonKey(ignore: true)
+  $AppsReceivedCopyWith<AppsReceived> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+class _$AppStateTearOff {
+  const _$AppStateTearOff();
+
+  _AppState call(
+      {required Option<List<App>> apps,
+      required Either<Unit, WorkspaceError> successOrFailure}) {
+    return _AppState(
+      apps: apps,
+      successOrFailure: successOrFailure,
+    );
+  }
+}
+
+/// @nodoc
+const $AppState = _$AppStateTearOff();
+
+/// @nodoc
+mixin _$AppState {
+  Option<List<App>> get apps => throw _privateConstructorUsedError;
+  Either<Unit, WorkspaceError> get successOrFailure =>
+      throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $AppStateCopyWith<AppState> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AppStateCopyWith<$Res> {
+  factory $AppStateCopyWith(AppState value, $Res Function(AppState) then) =
+      _$AppStateCopyWithImpl<$Res>;
+  $Res call(
+      {Option<List<App>> apps, Either<Unit, WorkspaceError> successOrFailure});
+}
+
+/// @nodoc
+class _$AppStateCopyWithImpl<$Res> implements $AppStateCopyWith<$Res> {
+  _$AppStateCopyWithImpl(this._value, this._then);
+
+  final AppState _value;
+  // ignore: unused_field
+  final $Res Function(AppState) _then;
+
+  @override
+  $Res call({
+    Object? apps = freezed,
+    Object? successOrFailure = freezed,
+  }) {
+    return _then(_value.copyWith(
+      apps: apps == freezed
+          ? _value.apps
+          : apps // ignore: cast_nullable_to_non_nullable
+              as Option<List<App>>,
+      successOrFailure: successOrFailure == freezed
+          ? _value.successOrFailure
+          : successOrFailure // ignore: cast_nullable_to_non_nullable
+              as Either<Unit, WorkspaceError>,
+    ));
+  }
+}
+
+/// @nodoc
+abstract class _$AppStateCopyWith<$Res> implements $AppStateCopyWith<$Res> {
+  factory _$AppStateCopyWith(_AppState value, $Res Function(_AppState) then) =
+      __$AppStateCopyWithImpl<$Res>;
+  @override
+  $Res call(
+      {Option<List<App>> apps, Either<Unit, WorkspaceError> successOrFailure});
+}
+
+/// @nodoc
+class __$AppStateCopyWithImpl<$Res> extends _$AppStateCopyWithImpl<$Res>
+    implements _$AppStateCopyWith<$Res> {
+  __$AppStateCopyWithImpl(_AppState _value, $Res Function(_AppState) _then)
+      : super(_value, (v) => _then(v as _AppState));
+
+  @override
+  _AppState get _value => super._value as _AppState;
+
+  @override
+  $Res call({
+    Object? apps = freezed,
+    Object? successOrFailure = freezed,
+  }) {
+    return _then(_AppState(
+      apps: apps == freezed
+          ? _value.apps
+          : apps // ignore: cast_nullable_to_non_nullable
+              as Option<List<App>>,
+      successOrFailure: successOrFailure == freezed
+          ? _value.successOrFailure
+          : successOrFailure // ignore: cast_nullable_to_non_nullable
+              as Either<Unit, WorkspaceError>,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$_AppState implements _AppState {
+  const _$_AppState({required this.apps, required this.successOrFailure});
+
+  @override
+  final Option<List<App>> apps;
+  @override
+  final Either<Unit, WorkspaceError> successOrFailure;
+
+  @override
+  String toString() {
+    return 'AppState(apps: $apps, successOrFailure: $successOrFailure)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other is _AppState &&
+            (identical(other.apps, apps) ||
+                const DeepCollectionEquality().equals(other.apps, apps)) &&
+            (identical(other.successOrFailure, successOrFailure) ||
+                const DeepCollectionEquality()
+                    .equals(other.successOrFailure, successOrFailure)));
+  }
+
+  @override
+  int get hashCode =>
+      runtimeType.hashCode ^
+      const DeepCollectionEquality().hash(apps) ^
+      const DeepCollectionEquality().hash(successOrFailure);
+
+  @JsonKey(ignore: true)
+  @override
+  _$AppStateCopyWith<_AppState> get copyWith =>
+      __$AppStateCopyWithImpl<_AppState>(this, _$identity);
+}
+
+abstract class _AppState implements AppState {
+  const factory _AppState(
+      {required Option<List<App>> apps,
+      required Either<Unit, WorkspaceError> successOrFailure}) = _$_AppState;
+
+  @override
+  Option<List<App>> get apps => throw _privateConstructorUsedError;
+  @override
+  Either<Unit, WorkspaceError> get successOrFailure =>
+      throw _privateConstructorUsedError;
+  @override
+  @JsonKey(ignore: true)
+  _$AppStateCopyWith<_AppState> get copyWith =>
+      throw _privateConstructorUsedError;
+}
--- a/app_flowy/lib/home/application/app/app_event.dart
+++ b/app_flowy/lib/home/application/app/app_event.dart
@ -0,0 +1,7 @@
+part of 'app_bloc.dart';
+
+@freezed
+abstract class AppEvent with _$AppEvent {
+  const factory AppEvent.appsReceived(
+      Either<List<App>, WorkspaceError> appsOrFail) = AppsReceived;
+}
--- a/app_flowy/lib/home/application/app/app_state.dart
+++ b/app_flowy/lib/home/application/app/app_state.dart
@ -0,0 +1,14 @@
+part of 'app_bloc.dart';
+
+@freezed
+abstract class AppState implements _$AppState {
+  const factory AppState({
+    required Option<List<App>> apps,
+    required Either<Unit, WorkspaceError> successOrFailure,
+  }) = _AppState;
+
+  factory AppState.initial() => AppState(
+        apps: none(),
+        successOrFailure: left(unit),
+      );
+}
--- a/app_flowy/lib/home/application/menu/menu_bloc.dart
+++ b/app_flowy/lib/home/application/menu/menu_bloc.dart
@ -1,6 +1,8 @@
 import 'dart:async';
+import 'package:app_flowy/home/domain/i_app.dart';
 import 'package:app_flowy/home/domain/page_context.dart';
 import 'package:dartz/dartz.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/errors.pb.dart';
 import 'package:flutter/material.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
@ -9,7 +11,8 @@ part 'menu_state.dart';
 part 'menu_bloc.freezed.dart';

 class MenuBloc extends Bloc<MenuEvent, MenuState> {
-  MenuBloc() : super(MenuState.initial());
+  final IApp iAppImpl;
+  MenuBloc(this.iAppImpl) : super(MenuState.initial());

  @override
  Stream<MenuState> mapEventToState(
@ -23,8 +26,8 @@ class MenuBloc extends Bloc<MenuEvent, MenuState> {
      openPage: (e) async* {
        yield* _performActionOnOpenPage(e);
      },
-      createApp: (e) async* {
-        yield* _performActionOnCreateApp(e);
+      createApp: (event) async* {
+        yield* _performActionOnCreateApp(event);
      },
    );
  }
@ -33,8 +36,17 @@ class MenuBloc extends Bloc<MenuEvent, MenuState> {
    yield state.copyWith(pageContext: some(e.context));
  }

-  Stream<MenuState> _performActionOnCreateApp(_CreateApp val) async* {
-    yield state;
+  Stream<MenuState> _performActionOnCreateApp(_CreateApp event) async* {
+    await iAppImpl
+        .createApp(name: event.name, desc: event.desc)
+        .then((result) async* {
+      result.fold(
+        (app) => {},
+        (error) async* {
+          yield state.copyWith(successOrFailure: right(error));
+        },
+      );
+    });
  }

  @override
--- a/app_flowy/lib/home/application/menu/menu_bloc.freezed.dart
+++ b/app_flowy/lib/home/application/menu/menu_bloc.freezed.dart
@ -26,9 +26,10 @@ class _$MenuEventTearOff {
    );
  }

-  _CreateApp createApp(String appName) {
+  _CreateApp createApp(String name, {String? desc}) {
    return _CreateApp(
-      appName,
+      name,
+      desc: desc,
    );
  }
 }
@ -42,14 +43,14 @@ mixin _$MenuEvent {
  TResult when<TResult extends Object?>({
    required TResult Function() collapse,
    required TResult Function(PageContext context) openPage,
-    required TResult Function(String appName) createApp,
+    required TResult Function(String name, String? desc) createApp,
  }) =>
      throw _privateConstructorUsedError;
  @optionalTypeArgs
  TResult maybeWhen<TResult extends Object?>({
    TResult Function()? collapse,
    TResult Function(PageContext context)? openPage,
-    TResult Function(String appName)? createApp,
+    TResult Function(String name, String? desc)? createApp,
    required TResult orElse(),
  }) =>
      throw _privateConstructorUsedError;
@ -124,7 +125,7 @@ class _$Collapse implements Collapse {
  TResult when<TResult extends Object?>({
    required TResult Function() collapse,
    required TResult Function(PageContext context) openPage,
-    required TResult Function(String appName) createApp,
+    required TResult Function(String name, String? desc) createApp,
  }) {
    return collapse();
  }
@ -134,7 +135,7 @@ class _$Collapse implements Collapse {
  TResult maybeWhen<TResult extends Object?>({
    TResult Function()? collapse,
    TResult Function(PageContext context)? openPage,
-    TResult Function(String appName)? createApp,
+    TResult Function(String name, String? desc)? createApp,
    required TResult orElse(),
  }) {
    if (collapse != null) {
@ -236,7 +237,7 @@ class _$_OpenPage implements _OpenPage {
  TResult when<TResult extends Object?>({
    required TResult Function() collapse,
    required TResult Function(PageContext context) openPage,
-    required TResult Function(String appName) createApp,
+    required TResult Function(String name, String? desc) createApp,
  }) {
    return openPage(context);
  }
@ -246,7 +247,7 @@ class _$_OpenPage implements _OpenPage {
  TResult maybeWhen<TResult extends Object?>({
    TResult Function()? collapse,
    TResult Function(PageContext context)? openPage,
-    TResult Function(String appName)? createApp,
+    TResult Function(String name, String? desc)? createApp,
    required TResult orElse(),
  }) {
    if (openPage != null) {
@ -294,7 +295,7 @@ abstract class _$CreateAppCopyWith<$Res> {
  factory _$CreateAppCopyWith(
          _CreateApp value, $Res Function(_CreateApp) then) =
      __$CreateAppCopyWithImpl<$Res>;
-  $Res call({String appName});
+  $Res call({String name, String? desc});
 }

 /// @nodoc
@ -308,13 +309,18 @@ class __$CreateAppCopyWithImpl<$Res> extends _$MenuEventCopyWithImpl<$Res>

  @override
  $Res call({
-    Object? appName = freezed,
+    Object? name = freezed,
+    Object? desc = freezed,
  }) {
    return _then(_CreateApp(
-      appName == freezed
-          ? _value.appName
-          : appName // ignore: cast_nullable_to_non_nullable
+      name == freezed
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
              as String,
+      desc: desc == freezed
+          ? _value.desc
+          : desc // ignore: cast_nullable_to_non_nullable
+              as String?,
    ));
  }
 }
@ -322,27 +328,33 @@ class __$CreateAppCopyWithImpl<$Res> extends _$MenuEventCopyWithImpl<$Res>
 /// @nodoc

 class _$_CreateApp implements _CreateApp {
-  const _$_CreateApp(this.appName);
+  const _$_CreateApp(this.name, {this.desc});

  @override
-  final String appName;
+  final String name;
+  @override
+  final String? desc;

  @override
  String toString() {
-    return 'MenuEvent.createApp(appName: $appName)';
+    return 'MenuEvent.createApp(name: $name, desc: $desc)';
  }

  @override
  bool operator ==(dynamic other) {
    return identical(this, other) ||
        (other is _CreateApp &&
-            (identical(other.appName, appName) ||
-                const DeepCollectionEquality().equals(other.appName, appName)));
+            (identical(other.name, name) ||
+                const DeepCollectionEquality().equals(other.name, name)) &&
+            (identical(other.desc, desc) ||
+                const DeepCollectionEquality().equals(other.desc, desc)));
  }

  @override
  int get hashCode =>
-      runtimeType.hashCode ^ const DeepCollectionEquality().hash(appName);
+      runtimeType.hashCode ^
+      const DeepCollectionEquality().hash(name) ^
+      const DeepCollectionEquality().hash(desc);

  @JsonKey(ignore: true)
  @override
@ -354,9 +366,9 @@ class _$_CreateApp implements _CreateApp {
  TResult when<TResult extends Object?>({
    required TResult Function() collapse,
    required TResult Function(PageContext context) openPage,
-    required TResult Function(String appName) createApp,
+    required TResult Function(String name, String? desc) createApp,
  }) {
-    return createApp(appName);
+    return createApp(name, desc);
  }

  @override
@ -364,11 +376,11 @@ class _$_CreateApp implements _CreateApp {
  TResult maybeWhen<TResult extends Object?>({
    TResult Function()? collapse,
    TResult Function(PageContext context)? openPage,
-    TResult Function(String appName)? createApp,
+    TResult Function(String name, String? desc)? createApp,
    required TResult orElse(),
  }) {
    if (createApp != null) {
-      return createApp(appName);
+      return createApp(name, desc);
    }
    return orElse();
  }
@ -399,9 +411,10 @@ class _$_CreateApp implements _CreateApp {
 }

 abstract class _CreateApp implements MenuEvent {
-  const factory _CreateApp(String appName) = _$_CreateApp;
+  const factory _CreateApp(String name, {String? desc}) = _$_CreateApp;

-  String get appName => throw _privateConstructorUsedError;
+  String get name => throw _privateConstructorUsedError;
+  String? get desc => throw _privateConstructorUsedError;
  @JsonKey(ignore: true)
  _$CreateAppCopyWith<_CreateApp> get copyWith =>
      throw _privateConstructorUsedError;
@ -412,10 +425,13 @@ class _$MenuStateTearOff {
  const _$MenuStateTearOff();

  _MenuState call(
-      {required bool isCollapse, required Option<PageContext> pageContext}) {
+      {required bool isCollapse,
+      required Option<PageContext> pageContext,
+      required Either<Unit, WorkspaceError> successOrFailure}) {
    return _MenuState(
      isCollapse: isCollapse,
      pageContext: pageContext,
+      successOrFailure: successOrFailure,
    );
  }
 }
@ -427,6 +443,8 @@ const $MenuState = _$MenuStateTearOff();
 mixin _$MenuState {
  bool get isCollapse => throw _privateConstructorUsedError;
  Option<PageContext> get pageContext => throw _privateConstructorUsedError;
+  Either<Unit, WorkspaceError> get successOrFailure =>
+      throw _privateConstructorUsedError;

  @JsonKey(ignore: true)
  $MenuStateCopyWith<MenuState> get copyWith =>
@ -437,7 +455,10 @@ mixin _$MenuState {
 abstract class $MenuStateCopyWith<$Res> {
  factory $MenuStateCopyWith(MenuState value, $Res Function(MenuState) then) =
      _$MenuStateCopyWithImpl<$Res>;
-  $Res call({bool isCollapse, Option<PageContext> pageContext});
+  $Res call(
+      {bool isCollapse,
+      Option<PageContext> pageContext,
+      Either<Unit, WorkspaceError> successOrFailure});
 }

 /// @nodoc
@ -452,6 +473,7 @@ class _$MenuStateCopyWithImpl<$Res> implements $MenuStateCopyWith<$Res> {
  $Res call({
    Object? isCollapse = freezed,
    Object? pageContext = freezed,
+    Object? successOrFailure = freezed,
  }) {
    return _then(_value.copyWith(
      isCollapse: isCollapse == freezed
@ -462,6 +484,10 @@ class _$MenuStateCopyWithImpl<$Res> implements $MenuStateCopyWith<$Res> {
          ? _value.pageContext
          : pageContext // ignore: cast_nullable_to_non_nullable
              as Option<PageContext>,
+      successOrFailure: successOrFailure == freezed
+          ? _value.successOrFailure
+          : successOrFailure // ignore: cast_nullable_to_non_nullable
+              as Either<Unit, WorkspaceError>,
    ));
  }
 }
@ -472,7 +498,10 @@ abstract class _$MenuStateCopyWith<$Res> implements $MenuStateCopyWith<$Res> {
          _MenuState value, $Res Function(_MenuState) then) =
      __$MenuStateCopyWithImpl<$Res>;
  @override
-  $Res call({bool isCollapse, Option<PageContext> pageContext});
+  $Res call(
+      {bool isCollapse,
+      Option<PageContext> pageContext,
+      Either<Unit, WorkspaceError> successOrFailure});
 }

 /// @nodoc
@ -488,6 +517,7 @@ class __$MenuStateCopyWithImpl<$Res> extends _$MenuStateCopyWithImpl<$Res>
  $Res call({
    Object? isCollapse = freezed,
    Object? pageContext = freezed,
+    Object? successOrFailure = freezed,
  }) {
    return _then(_MenuState(
      isCollapse: isCollapse == freezed
@ -498,6 +528,10 @@ class __$MenuStateCopyWithImpl<$Res> extends _$MenuStateCopyWithImpl<$Res>
          ? _value.pageContext
          : pageContext // ignore: cast_nullable_to_non_nullable
              as Option<PageContext>,
+      successOrFailure: successOrFailure == freezed
+          ? _value.successOrFailure
+          : successOrFailure // ignore: cast_nullable_to_non_nullable
+              as Either<Unit, WorkspaceError>,
    ));
  }
 }
@ -505,16 +539,21 @@ class __$MenuStateCopyWithImpl<$Res> extends _$MenuStateCopyWithImpl<$Res>
 /// @nodoc

 class _$_MenuState implements _MenuState {
-  const _$_MenuState({required this.isCollapse, required this.pageContext});
+  const _$_MenuState(
+      {required this.isCollapse,
+      required this.pageContext,
+      required this.successOrFailure});

  @override
  final bool isCollapse;
  @override
  final Option<PageContext> pageContext;
+  @override
+  final Either<Unit, WorkspaceError> successOrFailure;

  @override
  String toString() {
-    return 'MenuState(isCollapse: $isCollapse, pageContext: $pageContext)';
+    return 'MenuState(isCollapse: $isCollapse, pageContext: $pageContext, successOrFailure: $successOrFailure)';
  }

  @override
@ -526,14 +565,18 @@ class _$_MenuState implements _MenuState {
                    .equals(other.isCollapse, isCollapse)) &&
            (identical(other.pageContext, pageContext) ||
                const DeepCollectionEquality()
-                    .equals(other.pageContext, pageContext)));
+                    .equals(other.pageContext, pageContext)) &&
+            (identical(other.successOrFailure, successOrFailure) ||
+                const DeepCollectionEquality()
+                    .equals(other.successOrFailure, successOrFailure)));
  }

  @override
  int get hashCode =>
      runtimeType.hashCode ^
      const DeepCollectionEquality().hash(isCollapse) ^
-      const DeepCollectionEquality().hash(pageContext);
+      const DeepCollectionEquality().hash(pageContext) ^
+      const DeepCollectionEquality().hash(successOrFailure);

  @JsonKey(ignore: true)
  @override
@ -544,13 +587,17 @@ class _$_MenuState implements _MenuState {
 abstract class _MenuState implements MenuState {
  const factory _MenuState(
      {required bool isCollapse,
-      required Option<PageContext> pageContext}) = _$_MenuState;
+      required Option<PageContext> pageContext,
+      required Either<Unit, WorkspaceError> successOrFailure}) = _$_MenuState;

  @override
  bool get isCollapse => throw _privateConstructorUsedError;
  @override
  Option<PageContext> get pageContext => throw _privateConstructorUsedError;
  @override
+  Either<Unit, WorkspaceError> get successOrFailure =>
+      throw _privateConstructorUsedError;
+  @override
  @JsonKey(ignore: true)
  _$MenuStateCopyWith<_MenuState> get copyWith =>
      throw _privateConstructorUsedError;
--- a/app_flowy/lib/home/application/menu/menu_event.dart
+++ b/app_flowy/lib/home/application/menu/menu_event.dart
@ -4,5 +4,5 @@ part of 'menu_bloc.dart';
 abstract class MenuEvent with _$MenuEvent {
  const factory MenuEvent.collapse() = Collapse;
  const factory MenuEvent.openPage(PageContext context) = _OpenPage;
-  const factory MenuEvent.createApp(String appName) = _CreateApp;
+  const factory MenuEvent.createApp(String name, {String? desc}) = _CreateApp;
 }
--- a/app_flowy/lib/home/application/menu/menu_state.dart
+++ b/app_flowy/lib/home/application/menu/menu_state.dart
@ -5,10 +5,12 @@ abstract class MenuState implements _$MenuState {
  const factory MenuState({
    required bool isCollapse,
    required Option<PageContext> pageContext,
+    required Either<Unit, WorkspaceError> successOrFailure,
  }) = _MenuState;

  factory MenuState.initial() => MenuState(
        isCollapse: false,
        pageContext: none(),
+        successOrFailure: left(unit),
      );
 }
--- a/app_flowy/lib/home/domain/i_app.dart
+++ b/app_flowy/lib/home/domain/i_app.dart
@ -0,0 +1,18 @@
+import 'package:flowy_sdk/protobuf/flowy-workspace/protobuf.dart';
+import 'package:dartz/dartz.dart';
+
+abstract class IApp {
+  Future<Either<App, WorkspaceError>> createApp(
+      {required String name, String? desc});
+
+  Future<Either<List<App>, WorkspaceError>> getApps(
+      {required String workspaceId});
+
+  Future<Either<List<View>, WorkspaceError>> getViews({required String appId});
+
+  Future<Either<View, WorkspaceError>> createView(
+      {required String appId,
+      required String name,
+      String? desc,
+      required ViewTypeIdentifier viewType});
+}
--- a/app_flowy/lib/home/infrastructure/app_repo.dart
+++ b/app_flowy/lib/home/infrastructure/app_repo.dart
@ -0,0 +1,65 @@
+import 'package:dartz/dartz.dart';
+import 'package:flowy_sdk/dispatch/dispatch.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/app_create.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/app_query.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/errors.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/view_create.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/view_create.pbenum.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/workspace_query.pb.dart';
+
+class AppRepository {
+  Future<Either<App, WorkspaceError>> createApp(String appName, String desc) {
+    return WorkspaceEventGetCurWorkspace().send().then((result) {
+      return result.fold(
+        (workspace) {
+          final request = CreateAppRequest.create()
+            ..name = appName
+            ..workspaceId = workspace.id
+            ..desc = desc;
+          return WorkspaceEventCreateApp(request).send();
+        },
+        (error) {
+          return right(error);
+        },
+      );
+    });
+  }
+
+  Future<Either<List<App>, WorkspaceError>> getApps(
+      {required String workspaceId}) {
+    final request = QueryWorkspaceRequest.create()
+      ..workspaceId = workspaceId
+      ..readApps = true;
+
+    return WorkspaceEventGetWorkspace(request).send().then((result) {
+      return result.fold(
+        (workspace) => left(workspace.apps.items),
+        (error) => right(error),
+      );
+    });
+  }
+
+  Future<Either<List<View>, WorkspaceError>> getViews({required String appId}) {
+    final request = QueryAppRequest.create()
+      ..appId = appId
+      ..readViews = true;
+
+    return WorkspaceEventGetApp(request).send().then((result) {
+      return result.fold(
+        (app) => left(app.views.items),
+        (error) => right(error),
+      );
+    });
+  }
+
+  Future<Either<View, WorkspaceError>> createView(
+      String appId, String name, String desc, ViewTypeIdentifier viewType) {
+    final request = CreateViewRequest.create()
+      ..appId = appId
+      ..name = name
+      ..desc = desc
+      ..viewType = viewType;
+
+    return WorkspaceEventCreateView(request).send();
+  }
+}
--- a/app_flowy/lib/home/infrastructure/deps_resolver.dart
+++ b/app_flowy/lib/home/infrastructure/deps_resolver.dart
@ -0,0 +1,16 @@
+import 'package:app_flowy/home/application/menu/menu_bloc.dart';
+import 'package:app_flowy/home/infrastructure/app_repo.dart';
+import 'package:app_flowy/home/infrastructure/i_app_impl.dart';
+import 'package:get_it/get_it.dart';
+
+class HomeDepsResolver {
+  static Future<void> resolve(GetIt getIt) async {
+    getIt.registerLazySingleton<AppRepository>(() => AppRepository());
+
+    //Interface implementation
+    getIt.registerFactory<IApp>(() => IAppImpl(repo: getIt<AppRepository>()));
+
+    //Bloc
+    getIt.registerFactory<MenuBloc>(() => MenuBloc(getIt<IApp>()));
+  }
+}
--- a/app_flowy/lib/home/infrastructure/i_app_impl.dart
+++ b/app_flowy/lib/home/infrastructure/i_app_impl.dart
@ -0,0 +1,41 @@
+import 'package:dartz/dartz.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/app_create.pb.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/errors.pb.dart';
+import 'package:app_flowy/home/domain/i_app.dart';
+import 'package:app_flowy/home/infrastructure/app_repo.dart';
+import 'package:flowy_sdk/protobuf/flowy-workspace/view_create.pb.dart';
+
+export 'package:app_flowy/home/domain/i_app.dart';
+
+class IAppImpl extends IApp {
+  AppRepository repo;
+  IAppImpl({
+    required this.repo,
+  });
+
+  @override
+  Future<Either<App, WorkspaceError>> createApp(
+      {required String name, String? desc}) {
+    return repo.createApp(name, desc ?? "");
+  }
+
+  @override
+  Future<Either<List<App>, WorkspaceError>> getApps(
+      {required String workspaceId}) {
+    return repo.getApps(workspaceId: workspaceId);
+  }
+
+  @override
+  Future<Either<List<View>, WorkspaceError>> getViews({required String appId}) {
+    return repo.getViews(appId: appId);
+  }
+
+  @override
+  Future<Either<View, WorkspaceError>> createView(
+      {required String appId,
+      required String name,
+      String? desc,
+      required ViewTypeIdentifier viewType}) {
+    return repo.createView(appId, name, desc ?? "", viewType);
+  }
+}
--- a/app_flowy/lib/home/presentation/widgets/menu/home_menu.dart
+++ b/app_flowy/lib/home/presentation/widgets/menu/home_menu.dart
@ -57,8 +57,9 @@ class HomeMenu extends StatelessWidget {
          const MenuTopBar(),
          Expanded(child: Container()),
          NewAppButton(
-            createAppCallback: (appName) =>
-                context.read<MenuBloc>().add(MenuEvent.createApp(appName)),
+            createAppCallback: (appName) => context
+                .read<MenuBloc>()
+                .add(MenuEvent.createApp(appName, desc: "")),
          ),
        ],
      ).padding(horizontal: Insets.sm),
--- a/app_flowy/lib/startup/deps_inject/prelude.dart
+++ b/app_flowy/lib/startup/deps_inject/prelude.dart
@ -1,7 +1,8 @@
+import 'package:app_flowy/home/infrastructure/deps_resolver.dart';
 import 'package:app_flowy/startup/launch.dart';
 import 'package:app_flowy/startup/startup.dart';
-import 'package:app_flowy/user/infrastructure/interface_impl.dart';
-import 'package:app_flowy/welcome/infrastructure/interface_impl.dart';
+import 'package:app_flowy/user/infrastructure/deps_resolver.dart';
+import 'package:app_flowy/welcome/infrastructure/deps_resolver.dart';
 import 'package:flowy_sdk/flowy_sdk.dart';
 import 'package:get_it/get_it.dart';

@ -16,4 +17,5 @@ Future<void> initGetIt(

  await WelcomeDepsResolver.resolve(getIt);
  await UserDepsResolver.resolve(getIt);
+  await HomeDepsResolver.resolve(getIt);
 }
--- a/app_flowy/lib/user/application/sign_in/sign_in_bloc.dart
+++ b/app_flowy/lib/user/application/sign_in/sign_in_bloc.dart
@ -1,4 +1,4 @@
-import 'package:app_flowy/user/domain/interface.dart';
+import 'package:app_flowy/user/domain/i_auth.dart';
 import 'package:dartz/dartz.dart';
 import 'package:flowy_sdk/protobuf/flowy-user/protobuf.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';
--- a/app_flowy/lib/user/domain/interface.dart
+++ b/app_flowy/lib/user/domain/interface.dart
--- a/app_flowy/lib/user/infrastructure/deps_resolver.dart
+++ b/app_flowy/lib/user/infrastructure/deps_resolver.dart
@ -0,0 +1,17 @@
+import 'package:app_flowy/user/application/sign_in/sign_in_bloc.dart';
+import 'package:app_flowy/user/domain/i_auth.dart';
+import 'package:app_flowy/user/infrastructure/repos/auth_repo.dart';
+import 'package:app_flowy/user/infrastructure/i_auth_impl.dart';
+import 'package:get_it/get_it.dart';
+
+class UserDepsResolver {
+  static Future<void> resolve(GetIt getIt) async {
+    getIt.registerLazySingleton<AuthRepository>(() => AuthRepository());
+
+    //Interface implementation
+    getIt.registerFactory<IAuth>(() => AuthImpl(repo: getIt<AuthRepository>()));
+
+    //Bloc
+    getIt.registerFactory<SignInBloc>(() => SignInBloc(getIt<IAuth>()));
+  }
+}
--- a/app_flowy/lib/user/infrastructure/interface_impl.dart
+++ b/app_flowy/lib/user/infrastructure/interface_impl.dart
@ -1,22 +1,7 @@
-import 'package:app_flowy/user/application/sign_in/sign_in_bloc.dart';
 import 'package:dartz/dartz.dart';
 import 'package:flowy_sdk/protobuf/flowy-user/protobuf.dart';
-import 'package:get_it/get_it.dart';
-
-import 'package:app_flowy/user/domain/interface.dart';
-import 'package:app_flowy/user/infrastructure/auth_repo.dart';
-
-class UserDepsResolver {
-  static Future<void> resolve(GetIt getIt) async {
-    getIt.registerLazySingleton<AuthRepository>(() => AuthRepository());
-
-    //Interface implementation
-    getIt.registerFactory<IAuth>(() => AuthImpl(repo: getIt<AuthRepository>()));
-
-    //Bloc
-    getIt.registerFactory<SignInBloc>(() => SignInBloc(getIt<IAuth>()));
-  }
-}
+import 'package:app_flowy/user/domain/i_auth.dart';
+import 'package:app_flowy/user/infrastructure/repos/auth_repo.dart';

 class AuthImpl extends IAuth {
  AuthRepository repo;
--- a/app_flowy/lib/user/infrastructure/repos/auth_repo.dart
+++ b/app_flowy/lib/user/infrastructure/repos/auth_repo.dart
--- a/app_flowy/lib/welcome/application/welcome_bloc.dart
+++ b/app_flowy/lib/welcome/application/welcome_bloc.dart
@ -1,5 +1,5 @@
 import 'package:app_flowy/welcome/domain/auth_state.dart';
-import 'package:app_flowy/welcome/domain/interface.dart';
+import 'package:app_flowy/welcome/domain/i_welcome.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:freezed_annotation/freezed_annotation.dart';

--- a/app_flowy/lib/welcome/domain/i_welcome.dart
+++ b/app_flowy/lib/welcome/domain/i_welcome.dart
--- a/app_flowy/lib/welcome/infrastructure/deps_resolver.dart
+++ b/app_flowy/lib/welcome/infrastructure/deps_resolver.dart
@ -0,0 +1,19 @@
+import 'package:app_flowy/home/application/edit_pannel/edit_pannel_bloc.dart';
+import 'package:app_flowy/home/application/home_bloc.dart';
+import 'package:app_flowy/home/application/watcher/home_watcher_bloc.dart';
+import 'package:app_flowy/welcome/application/welcome_bloc.dart';
+import 'package:app_flowy/welcome/infrastructure/i_welcome_impl.dart';
+import 'package:get_it/get_it.dart';
+
+class WelcomeDepsResolver {
+  static Future<void> resolve(GetIt getIt) async {
+    getIt.registerFactory<IWelcomeAuth>(() => WelcomeAuthImpl());
+    getIt.registerFactory<IWelcomeRoute>(() => WelcomeRoute());
+    getIt.registerFactory<HomeBloc>(() => HomeBloc());
+    getIt.registerFactory<HomeWatcherBloc>(() => HomeWatcherBloc());
+    getIt.registerFactory<EditPannelBloc>(() => EditPannelBloc());
+
+    getIt
+        .registerFactory<WelcomeBloc>(() => WelcomeBloc(getIt<IWelcomeAuth>()));
+  }
+}
--- a/app_flowy/lib/welcome/infrastructure/i_welcome_impl.dart
+++ b/app_flowy/lib/welcome/infrastructure/i_welcome_impl.dart
@ -1,32 +1,16 @@
 import 'package:app_flowy/home/application/edit_pannel/edit_pannel_bloc.dart';
 import 'package:app_flowy/home/application/home_bloc.dart';
-import 'package:app_flowy/home/application/menu/menu_bloc.dart';
-import 'package:app_flowy/home/application/watcher/home_watcher_bloc.dart';
+
 import 'package:app_flowy/home/presentation/home_screen.dart';
 import 'package:app_flowy/user/presentation/sign_in/sign_in_screen.dart';
-import 'package:app_flowy/welcome/application/welcome_bloc.dart';
 import 'package:app_flowy/welcome/domain/auth_state.dart';
-import 'package:app_flowy/welcome/domain/interface.dart';
+import 'package:app_flowy/welcome/domain/i_welcome.dart';
 import 'package:flowy_sdk/dispatch/dispatch.dart';
 import 'package:flowy_sdk/protobuf/flowy-user/protobuf.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
-import 'package:get_it/get_it.dart';

-class WelcomeDepsResolver {
-  static Future<void> resolve(GetIt getIt) async {
-    getIt.registerFactory<IWelcomeAuth>(() => WelcomeAuthImpl());
-    getIt.registerFactory<IWelcomeRoute>(() => WelcomeRoute());
-    getIt.registerFactory<HomeBloc>(() => HomeBloc());
-    getIt.registerFactory<HomeWatcherBloc>(() => HomeWatcherBloc());
-    getIt.registerFactory<EditPannelBloc>(() => EditPannelBloc());
-
-    getIt.registerFactory<MenuBloc>(() => MenuBloc());
-
-    getIt
-        .registerFactory<WelcomeBloc>(() => WelcomeBloc(getIt<IWelcomeAuth>()));
-  }
-}
+export 'package:app_flowy/welcome/domain/i_welcome.dart';

 class WelcomeAuthImpl implements IWelcomeAuth {
  @override
--- a/app_flowy/lib/welcome/presentation/welcome_screen.dart
+++ b/app_flowy/lib/welcome/presentation/welcome_screen.dart
@ -1,4 +1,4 @@
-import 'package:app_flowy/welcome/domain/interface.dart';
+import 'package:app_flowy/welcome/domain/i_welcome.dart';
 import 'package:app_flowy/welcome/domain/auth_state.dart';
 import 'package:app_flowy/startup/startup.dart';
 import 'package:app_flowy/welcome/application/welcome_bloc.dart';
--- a/app_flowy/packages/flowy_sdk/lib/ffi.dart
+++ b/app_flowy/packages/flowy_sdk/lib/ffi.dart
@ -80,6 +80,22 @@ typedef _init_sdk_Dart = int Function(
  Pointer<ffi.Utf8> path,
 );

+
+/// C function `init_stream`.
+int set_stream_port(int port) {
+  return _set_stream_port(port);
+}
+
+final _set_stream_port_Dart _set_stream_port =
+_dl.lookupFunction<_set_stream_port_C, _set_stream_port_Dart>('set_stream_port');
+
+typedef _set_stream_port_C = Int32 Function(
+    Int64 port,
+    );
+typedef _set_stream_port_Dart = int Function(
+    int port,
+    );
+
 /// C function `link_me_please`.
 void link_me_please() {
  _link_me_please();
--- a/app_flowy/packages/flowy_sdk/lib/flowy_sdk.dart
+++ b/app_flowy/packages/flowy_sdk/lib/flowy_sdk.dart
@ -1,6 +1,7 @@
 export 'package:async/async.dart';
 import 'dart:io';
 import 'dart:async';
+import 'package:flowy_sdk/rust_stream.dart';
 import 'package:flutter/services.dart';
 import 'dart:ffi';
 import 'ffi.dart' as ffi;
@ -18,6 +19,9 @@ class FlowySDK {
  void dispose() {}

  Future<void> init(Directory sdkDir) async {
+    final port = RustStreamReceiver.shared.port;
+    ffi.set_stream_port(port);
+
    ffi.store_dart_post_cobject(NativeApi.postCObject);
    ffi.init_sdk(sdkDir.path.toNativeUtf8());
  }
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/protobuf.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/protobuf.dart
@ -0,0 +1,2 @@
+// Auto-generated, do not edit 
+export './subject.pb.dart';
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pb.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pb.dart
@ -0,0 +1,113 @@
+///
+//  Generated code. Do not modify.
+//  source: subject.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
+
+import 'dart:core' as $core;
+
+import 'package:protobuf/protobuf.dart' as $pb;
+
+enum ObservableSubject_OneOfSubjectPayload {
+  subjectPayload, 
+  notSet
+}
+
+class ObservableSubject extends $pb.GeneratedMessage {
+  static const $core.Map<$core.int, ObservableSubject_OneOfSubjectPayload> _ObservableSubject_OneOfSubjectPayloadByTag = {
+    4 : ObservableSubject_OneOfSubjectPayload.subjectPayload,
+    0 : ObservableSubject_OneOfSubjectPayload.notSet
+  };
+  static final $pb.BuilderInfo _i = $pb.BuilderInfo(const $core.bool.fromEnvironment('protobuf.omit_message_names') ? '' : 'ObservableSubject', createEmptyInstance: create)
+    ..oo(0, [4])
+    ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'category')
+    ..a<$core.int>(2, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'ty', $pb.PbFieldType.O3)
+    ..aOS(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'subjectId')
+    ..a<$core.List<$core.int>>(4, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'subjectPayload', $pb.PbFieldType.OY)
+    ..hasRequiredFields = false
+  ;
+
+  ObservableSubject._() : super();
+  factory ObservableSubject({
+    $core.String? category,
+    $core.int? ty,
+    $core.String? subjectId,
+    $core.List<$core.int>? subjectPayload,
+  }) {
+    final _result = create();
+    if (category != null) {
+      _result.category = category;
+    }
+    if (ty != null) {
+      _result.ty = ty;
+    }
+    if (subjectId != null) {
+      _result.subjectId = subjectId;
+    }
+    if (subjectPayload != null) {
+      _result.subjectPayload = subjectPayload;
+    }
+    return _result;
+  }
+  factory ObservableSubject.fromBuffer($core.List<$core.int> i, [$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) => create()..mergeFromBuffer(i, r);
+  factory ObservableSubject.fromJson($core.String i, [$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) => create()..mergeFromJson(i, r);
+  @$core.Deprecated(
+  'Using this can add significant overhead to your binary. '
+  'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
+  'Will be removed in next major version')
+  ObservableSubject clone() => ObservableSubject()..mergeFromMessage(this);
+  @$core.Deprecated(
+  'Using this can add significant overhead to your binary. '
+  'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
+  'Will be removed in next major version')
+  ObservableSubject copyWith(void Function(ObservableSubject) updates) => super.copyWith((message) => updates(message as ObservableSubject)) as ObservableSubject; // ignore: deprecated_member_use
+  $pb.BuilderInfo get info_ => _i;
+  @$core.pragma('dart2js:noInline')
+  static ObservableSubject create() => ObservableSubject._();
+  ObservableSubject createEmptyInstance() => create();
+  static $pb.PbList<ObservableSubject> createRepeated() => $pb.PbList<ObservableSubject>();
+  @$core.pragma('dart2js:noInline')
+  static ObservableSubject getDefault() => _defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<ObservableSubject>(create);
+  static ObservableSubject? _defaultInstance;
+
+  ObservableSubject_OneOfSubjectPayload whichOneOfSubjectPayload() => _ObservableSubject_OneOfSubjectPayloadByTag[$_whichOneof(0)]!;
+  void clearOneOfSubjectPayload() => clearField($_whichOneof(0));
+
+  @$pb.TagNumber(1)
+  $core.String get category => $_getSZ(0);
+  @$pb.TagNumber(1)
+  set category($core.String v) { $_setString(0, v); }
+  @$pb.TagNumber(1)
+  $core.bool hasCategory() => $_has(0);
+  @$pb.TagNumber(1)
+  void clearCategory() => clearField(1);
+
+  @$pb.TagNumber(2)
+  $core.int get ty => $_getIZ(1);
+  @$pb.TagNumber(2)
+  set ty($core.int v) { $_setSignedInt32(1, v); }
+  @$pb.TagNumber(2)
+  $core.bool hasTy() => $_has(1);
+  @$pb.TagNumber(2)
+  void clearTy() => clearField(2);
+
+  @$pb.TagNumber(3)
+  $core.String get subjectId => $_getSZ(2);
+  @$pb.TagNumber(3)
+  set subjectId($core.String v) { $_setString(2, v); }
+  @$pb.TagNumber(3)
+  $core.bool hasSubjectId() => $_has(2);
+  @$pb.TagNumber(3)
+  void clearSubjectId() => clearField(3);
+
+  @$pb.TagNumber(4)
+  $core.List<$core.int> get subjectPayload => $_getN(3);
+  @$pb.TagNumber(4)
+  set subjectPayload($core.List<$core.int> v) { $_setBytes(3, v); }
+  @$pb.TagNumber(4)
+  $core.bool hasSubjectPayload() => $_has(3);
+  @$pb.TagNumber(4)
+  void clearSubjectPayload() => clearField(4);
+}
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbenum.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbenum.dart
@ -0,0 +1,7 @@
+///
+//  Generated code. Do not modify.
+//  source: subject.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbjson.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbjson.dart
@ -0,0 +1,26 @@
+///
+//  Generated code. Do not modify.
+//  source: subject.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields,deprecated_member_use_from_same_package
+
+import 'dart:core' as $core;
+import 'dart:convert' as $convert;
+import 'dart:typed_data' as $typed_data;
+@$core.Deprecated('Use observableSubjectDescriptor instead')
+const ObservableSubject$json = const {
+  '1': 'ObservableSubject',
+  '2': const [
+    const {'1': 'category', '3': 1, '4': 1, '5': 9, '10': 'category'},
+    const {'1': 'ty', '3': 2, '4': 1, '5': 5, '10': 'ty'},
+    const {'1': 'subject_id', '3': 3, '4': 1, '5': 9, '10': 'subjectId'},
+    const {'1': 'subject_payload', '3': 4, '4': 1, '5': 12, '9': 0, '10': 'subjectPayload'},
+  ],
+  '8': const [
+    const {'1': 'one_of_subject_payload'},
+  ],
+};
+
+/// Descriptor for `ObservableSubject`. Decode as a `google.protobuf.DescriptorProto`.
+final $typed_data.Uint8List observableSubjectDescriptor = $convert.base64Decode('ChFPYnNlcnZhYmxlU3ViamVjdBIaCghjYXRlZ29yeRgBIAEoCVIIY2F0ZWdvcnkSDgoCdHkYAiABKAVSAnR5Eh0KCnN1YmplY3RfaWQYAyABKAlSCXN1YmplY3RJZBIpCg9zdWJqZWN0X3BheWxvYWQYBCABKAxIAFIOc3ViamVjdFBheWxvYWRCGAoWb25lX29mX3N1YmplY3RfcGF5bG9hZA==');
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbserver.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-observable/subject.pbserver.dart
@ -0,0 +1,9 @@
+///
+//  Generated code. Do not modify.
+//  source: subject.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields,deprecated_member_use_from_same_package
+
+export 'subject.pb.dart';
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pb.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pb.dart
@ -0,0 +1,11 @@
+///
+//  Generated code. Do not modify.
+//  source: observable.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
+
+import 'dart:core' as $core;
+
+export 'observable.pbenum.dart';
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbenum.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbenum.dart
@ -0,0 +1,28 @@
+///
+//  Generated code. Do not modify.
+//  source: observable.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
+
+// ignore_for_file: UNDEFINED_SHOWN_NAME
+import 'dart:core' as $core;
+import 'package:protobuf/protobuf.dart' as $pb;
+
+class ObservableType extends $pb.ProtobufEnum {
+  static const ObservableType Unknown = ObservableType._(0, const $core.bool.fromEnvironment('protobuf.omit_enum_names') ? '' : 'Unknown');
+  static const ObservableType WorkspaceDidUpdate = ObservableType._(10, const $core.bool.fromEnvironment('protobuf.omit_enum_names') ? '' : 'WorkspaceDidUpdate');
+  static const ObservableType AppDidUpdate = ObservableType._(11, const $core.bool.fromEnvironment('protobuf.omit_enum_names') ? '' : 'AppDidUpdate');
+
+  static const $core.List<ObservableType> values = <ObservableType> [
+    Unknown,
+    WorkspaceDidUpdate,
+    AppDidUpdate,
+  ];
+
+  static final $core.Map<$core.int, ObservableType> _byValue = $pb.ProtobufEnum.initByValue(values);
+  static ObservableType? valueOf($core.int value) => _byValue[value];
+
+  const ObservableType._($core.int v, $core.String n) : super(v, n);
+}
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbjson.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbjson.dart
@ -0,0 +1,22 @@
+///
+//  Generated code. Do not modify.
+//  source: observable.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields,deprecated_member_use_from_same_package
+
+import 'dart:core' as $core;
+import 'dart:convert' as $convert;
+import 'dart:typed_data' as $typed_data;
+@$core.Deprecated('Use observableTypeDescriptor instead')
+const ObservableType$json = const {
+  '1': 'ObservableType',
+  '2': const [
+    const {'1': 'Unknown', '2': 0},
+    const {'1': 'WorkspaceDidUpdate', '2': 10},
+    const {'1': 'AppDidUpdate', '2': 11},
+  ],
+};
+
+/// Descriptor for `ObservableType`. Decode as a `google.protobuf.EnumDescriptorProto`.
+final $typed_data.Uint8List observableTypeDescriptor = $convert.base64Decode('Cg5PYnNlcnZhYmxlVHlwZRILCgdVbmtub3duEAASFgoSV29ya3NwYWNlRGlkVXBkYXRlEAoSEAoMQXBwRGlkVXBkYXRlEAs=');
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbserver.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/observable.pbserver.dart
@ -0,0 +1,9 @@
+///
+//  Generated code. Do not modify.
+//  source: observable.proto
+//
+// @dart = 2.12
+// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields,deprecated_member_use_from_same_package
+
+export 'observable.pb.dart';
+
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/protobuf.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-workspace/protobuf.dart
@ -1,5 +1,6 @@
 // Auto-generated, do not edit 
 export './app_query.pb.dart';
+export './observable.pb.dart';
 export './errors.pb.dart';
 export './workspace_update.pb.dart';
 export './app_create.pb.dart';
--- a/app_flowy/packages/flowy_sdk/lib/rust_stream.dart
+++ b/app_flowy/packages/flowy_sdk/lib/rust_stream.dart
@ -0,0 +1,54 @@
+import 'dart:isolate';
+import 'dart:async';
+import 'dart:typed_data';
+import 'dart:ffi';
+import 'package:flowy_infra/flowy_logger.dart';
+import 'protobuf/flowy-observable/subject.pb.dart';
+
+typedef ObserverCallback = void Function(ObservableSubject observable);
+
+class RustStreamReceiver {
+  static RustStreamReceiver shared = RustStreamReceiver._internal();
+  late RawReceivePort _ffiPort;
+  late StreamController<Uint8List> _streamController;
+  late StreamController<ObservableSubject> _observableController;
+  late StreamSubscription<Uint8List> _ffiSubscription;
+
+  int get port => _ffiPort.sendPort.nativePort;
+  StreamController<ObservableSubject> get observable => _observableController;
+
+  RustStreamReceiver._internal() {
+    _ffiPort = RawReceivePort();
+    _streamController = StreamController();
+    _observableController = StreamController.broadcast();
+
+    _ffiPort.handler = _streamController.add;
+    _ffiSubscription = _streamController.stream.listen(streamCallback);
+  }
+
+  factory RustStreamReceiver() {
+    return shared;
+  }
+
+  static listen(void Function(ObservableSubject subject) callback) {
+    RustStreamReceiver.shared.observable.stream.listen(callback);
+  }
+
+  void streamCallback(Uint8List bytes) {
+    try {
+      final observable = ObservableSubject.fromBuffer(bytes);
+      _observableController.add(observable);
+    } catch (e, s) {
+      Log.error('RustStreamReceiver ObservableSubject deserialize error: ${e.runtimeType}');
+      Log.error('Stack trace \n $s');
+      rethrow;
+    }
+  }
+
+  Future<void> dispose() async {
+    await _ffiSubscription.cancel();
+    await _streamController.close();
+    await _observableController.close();
+    _ffiPort.close();
+  }
+}
--- a/app_flowy/packages/flowy_sdk/macos/Classes/binding.h
+++ b/app_flowy/packages/flowy_sdk/macos/Classes/binding.h
@ -10,4 +10,6 @@ void async_command(int64_t port, const uint8_t *input, uintptr_t len);

 const uint8_t *sync_command(const uint8_t *input, uintptr_t len);

+int32_t set_stream_port(int64_t port);
+
 void link_me_please(void);
--- a/rust-lib/Cargo.toml
+++ b/rust-lib/Cargo.toml
@ -12,6 +12,7 @@ members = [
  "flowy-database",
  "flowy-infra",
  "flowy-workspace",
+  "flowy-observable",
 ]

 [profile.dev]
--- a/rust-lib/dart-ffi/Cargo.toml
+++ b/rust-lib/dart-ffi/Cargo.toml
@ -28,6 +28,7 @@ serde_json = {version = "1.0"}
 flowy-dispatch = {path = "../flowy-dispatch"}
 flowy-sdk = {path = "../flowy-sdk"}
 flowy-derive = {path = "../flowy-derive"}
+flowy-observable = {path = "../flowy-observable", features = ["dart"]}


 #[features]
--- a/rust-lib/dart-ffi/binding.h
+++ b/rust-lib/dart-ffi/binding.h
@ -10,4 +10,6 @@ void async_command(int64_t port, const uint8_t *input, uintptr_t len);

 const uint8_t *sync_command(const uint8_t *input, uintptr_t len);

+int32_t set_stream_port(int64_t port);
+
 void link_me_please(void);
--- a/rust-lib/dart-ffi/src/lib.rs
+++ b/rust-lib/dart-ffi/src/lib.rs
@ -12,14 +12,6 @@ use flowy_sdk::*;
 use lazy_static::lazy_static;
 use std::{ffi::CStr, os::raw::c_char};

-lazy_static! {
-    pub static ref FFI_RUNTIME: tokio::runtime::Runtime =
-        tokio::runtime::Builder::new_current_thread()
-            .thread_name("flowy-dart-ffi")
-            .build()
-            .unwrap();
-}
-
 #[no_mangle]
 pub extern "C" fn init_sdk(path: *mut c_char) -> i64 {
    let c_str: &CStr = unsafe { CStr::from_ptr(path) };
@ -58,6 +50,12 @@ pub extern "C" fn sync_command(input: *const u8, len: usize) -> *const u8 {
    forget_rust(result)
 }

+#[no_mangle]
+pub extern "C" fn set_stream_port(port: i64) -> i32 {
+    flowy_observable::dart::RustStreamSender::set_port(port);
+    return 0;
+}
+
 #[inline(never)]
 #[no_mangle]
 pub extern "C" fn link_me_please() {}
--- a/rust-lib/flowy-derive/src/derive_cache/derive_cache.rs
+++ b/rust-lib/flowy-derive/src/derive_cache/derive_cache.rs
@ -15,7 +15,8 @@ pub fn category_from_str(type_str: &str) -> TypeCategory {
        "HashMap" => TypeCategory::Map,
        "u8" => TypeCategory::Bytes,
        "String" => TypeCategory::Str,
-        "KeyValue"
+        "ObservableSubject"
+        | "KeyValue"
        | "QueryAppRequest"
        | "CreateAppRequest"
        | "ColorStyle"
@ -45,6 +46,7 @@ pub fn category_from_str(type_str: &str) -> TypeCategory {
        "ViewTypeIdentifier"
        | "WorkspaceEvent"
        | "WorkspaceErrorCode"
+        | "ObservableType"
        | "FFIStatusCode"
        | "UserStatus"
        | "UserEvent"
--- a/rust-lib/flowy-derive/src/proto_buf/deserialize.rs
+++ b/rust-lib/flowy-derive/src/proto_buf/deserialize.rs
@ -86,6 +86,15 @@ fn token_stream_for_one_of(ctxt: &Ctxt, field: &ASTField) -> Option<TokenStream>
                }
            })
        },
+        TypeCategory::Array => {
+            let take_func = format_ident!("take_{}", ident.to_string());
+            let ty = bracketed_ty_info.unwrap().ty;
+            Some(quote! {
+                if pb.#has_func() {
+                    o.#member=Some(pb.#take_func());
+                }
+            })
+        },
        _ => {
            let take_func = format_ident!("take_{}", ident.to_string());
            let ty = bracketed_ty_info.unwrap().ty;
--- a/rust-lib/flowy-observable/Cargo.toml
+++ b/rust-lib/flowy-observable/Cargo.toml
@ -0,0 +1,17 @@
+[package]
+name = "flowy-observable"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+lazy_static = {version = "1.4.0"}
+protobuf = {version = "2.20.0"}
+allo-isolate = {version = "^0.1", features = ["catch-unwind",]}
+log = "0.4.14"
+
+flowy-derive = {path = "../flowy-derive"}
+
+[features]
+dart = []
--- a/rust-lib/flowy-observable/Flowy.toml
+++ b/rust-lib/flowy-observable/Flowy.toml
@ -0,0 +1,3 @@
+
+proto_crates = ["src/entities"]
+event_files = [""]
--- a/rust-lib/flowy-observable/src/dart/mod.rs
+++ b/rust-lib/flowy-observable/src/dart/mod.rs
@ -0,0 +1,3 @@
+mod stream_sender;
+
+pub use stream_sender::*;
--- a/rust-lib/flowy-observable/src/dart/stream_sender.rs
+++ b/rust-lib/flowy-observable/src/dart/stream_sender.rs
@ -0,0 +1,52 @@
+use crate::entities::ObservableSubject;
+use lazy_static::lazy_static;
+use std::{convert::TryInto, sync::RwLock};
+
+lazy_static! {
+    static ref R2F_STREAM_SENDER: RwLock<RustStreamSender> = RwLock::new(RustStreamSender::new());
+}
+
+pub struct RustStreamSender {
+    isolate: Option<allo_isolate::Isolate>,
+}
+
+impl RustStreamSender {
+    fn new() -> Self { Self { isolate: None } }
+
+    fn inner_set_port(&mut self, port: i64) {
+        log::debug!("Setup rust to flutter stream with port {}", port);
+        self.isolate = Some(allo_isolate::Isolate::new(port));
+    }
+
+    fn inner_post(&self, observable_subject: ObservableSubject) -> Result<(), String> {
+        match self.isolate {
+            Some(ref isolate) => {
+                let bytes: Vec<u8> = observable_subject.try_into().unwrap();
+                isolate.post(bytes);
+                Ok(())
+            },
+            None => Err("Isolate is not set".to_owned()),
+        }
+    }
+
+    pub fn set_port(port: i64) {
+        match R2F_STREAM_SENDER.write() {
+            Ok(mut stream) => stream.inner_set_port(port),
+            Err(e) => {
+                let msg = format!("Get rust to flutter stream lock fail. {:?}", e);
+                log::error!("{:?}", msg);
+            },
+        }
+    }
+
+    pub fn post(observable_subject: ObservableSubject) -> Result<(), String> {
+        #[cfg(feature = "dart")]
+        match R2F_STREAM_SENDER.read() {
+            Ok(stream) => stream.inner_post(observable_subject),
+            Err(e) => Err(format!("Get rust to flutter stream lock fail. {:?}", e)),
+        }
+
+        #[cfg(not(feature = "dart"))]
+        Ok(())
+    }
+}
--- a/rust-lib/flowy-observable/src/entities/mod.rs
+++ b/rust-lib/flowy-observable/src/entities/mod.rs
@ -0,0 +1,3 @@
+mod subject;
+
+pub use subject::*;
--- a/rust-lib/flowy-observable/src/entities/subject.rs
+++ b/rust-lib/flowy-observable/src/entities/subject.rs
@ -0,0 +1,24 @@
+use flowy_derive::ProtoBuf;
+
+#[derive(Debug, Clone, ProtoBuf)]
+pub struct ObservableSubject {
+    #[pb(index = 1)]
+    pub category: String,
+
+    #[pb(index = 2)]
+    pub ty: i32,
+
+    #[pb(index = 3)]
+    pub subject_id: String,
+
+    #[pb(index = 4, one_of)]
+    pub subject_payload: Option<Vec<u8>>,
+}
+
+impl std::default::Default for ObservableSubject {
+    fn default() -> Self {
+        Self {
+            ..Default::default()
+        }
+    }
+}
--- a/rust-lib/flowy-observable/src/lib.rs
+++ b/rust-lib/flowy-observable/src/lib.rs
@ -0,0 +1,11 @@
+pub mod dart;
+pub mod entities;
+mod protobuf;
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}
--- a/rust-lib/flowy-observable/src/protobuf/mod.rs
+++ b/rust-lib/flowy-observable/src/protobuf/mod.rs
@ -0,0 +1,4 @@
+
+mod model;
+pub use model::*;
+        
--- a/rust-lib/flowy-observable/src/protobuf/model/mod.rs
+++ b/rust-lib/flowy-observable/src/protobuf/model/mod.rs
@ -0,0 +1,4 @@
+// Auto-generated, do not edit 
+
+mod subject; 
+pub use subject::*; 
--- a/rust-lib/flowy-observable/src/protobuf/model/subject.rs
+++ b/rust-lib/flowy-observable/src/protobuf/model/subject.rs
@ -0,0 +1,376 @@
+// This file is generated by rust-protobuf 2.22.1. Do not edit
+// @generated
+
+// https://github.com/rust-lang/rust-clippy/issues/702
+#![allow(unknown_lints)]
+#![allow(clippy::all)]
+
+#![allow(unused_attributes)]
+#![cfg_attr(rustfmt, rustfmt::skip)]
+
+#![allow(box_pointers)]
+#![allow(dead_code)]
+#![allow(missing_docs)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(trivial_casts)]
+#![allow(unused_imports)]
+#![allow(unused_results)]
+//! Generated file from `subject.proto`
+
+/// Generated files are compatible only with the same version
+/// of protobuf runtime.
+// const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_22_1;
+
+#[derive(PartialEq,Clone,Default)]
+pub struct ObservableSubject {
+    // message fields
+    pub category: ::std::string::String,
+    pub ty: i32,
+    pub subject_id: ::std::string::String,
+    // message oneof groups
+    pub one_of_subject_payload: ::std::option::Option<ObservableSubject_oneof_one_of_subject_payload>,
+    // special fields
+    pub unknown_fields: ::protobuf::UnknownFields,
+    pub cached_size: ::protobuf::CachedSize,
+}
+
+impl<'a> ::std::default::Default for &'a ObservableSubject {
+    fn default() -> &'a ObservableSubject {
+        <ObservableSubject as ::protobuf::Message>::default_instance()
+    }
+}
+
+#[derive(Clone,PartialEq,Debug)]
+pub enum ObservableSubject_oneof_one_of_subject_payload {
+    subject_payload(::std::vec::Vec<u8>),
+}
+
+impl ObservableSubject {
+    pub fn new() -> ObservableSubject {
+        ::std::default::Default::default()
+    }
+
+    // string category = 1;
+
+
+    pub fn get_category(&self) -> &str {
+        &self.category
+    }
+    pub fn clear_category(&mut self) {
+        self.category.clear();
+    }
+
+    // Param is passed by value, moved
+    pub fn set_category(&mut self, v: ::std::string::String) {
+        self.category = v;
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_category(&mut self) -> &mut ::std::string::String {
+        &mut self.category
+    }
+
+    // Take field
+    pub fn take_category(&mut self) -> ::std::string::String {
+        ::std::mem::replace(&mut self.category, ::std::string::String::new())
+    }
+
+    // int32 ty = 2;
+
+
+    pub fn get_ty(&self) -> i32 {
+        self.ty
+    }
+    pub fn clear_ty(&mut self) {
+        self.ty = 0;
+    }
+
+    // Param is passed by value, moved
+    pub fn set_ty(&mut self, v: i32) {
+        self.ty = v;
+    }
+
+    // string subject_id = 3;
+
+
+    pub fn get_subject_id(&self) -> &str {
+        &self.subject_id
+    }
+    pub fn clear_subject_id(&mut self) {
+        self.subject_id.clear();
+    }
+
+    // Param is passed by value, moved
+    pub fn set_subject_id(&mut self, v: ::std::string::String) {
+        self.subject_id = v;
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_subject_id(&mut self) -> &mut ::std::string::String {
+        &mut self.subject_id
+    }
+
+    // Take field
+    pub fn take_subject_id(&mut self) -> ::std::string::String {
+        ::std::mem::replace(&mut self.subject_id, ::std::string::String::new())
+    }
+
+    // bytes subject_payload = 4;
+
+
+    pub fn get_subject_payload(&self) -> &[u8] {
+        match self.one_of_subject_payload {
+            ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(ref v)) => v,
+            _ => &[],
+        }
+    }
+    pub fn clear_subject_payload(&mut self) {
+        self.one_of_subject_payload = ::std::option::Option::None;
+    }
+
+    pub fn has_subject_payload(&self) -> bool {
+        match self.one_of_subject_payload {
+            ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(..)) => true,
+            _ => false,
+        }
+    }
+
+    // Param is passed by value, moved
+    pub fn set_subject_payload(&mut self, v: ::std::vec::Vec<u8>) {
+        self.one_of_subject_payload = ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(v))
+    }
+
+    // Mutable pointer to the field.
+    pub fn mut_subject_payload(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if let ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(_)) = self.one_of_subject_payload {
+        } else {
+            self.one_of_subject_payload = ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(::std::vec::Vec::new()));
+        }
+        match self.one_of_subject_payload {
+            ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(ref mut v)) => v,
+            _ => panic!(),
+        }
+    }
+
+    // Take field
+    pub fn take_subject_payload(&mut self) -> ::std::vec::Vec<u8> {
+        if self.has_subject_payload() {
+            match self.one_of_subject_payload.take() {
+                ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(v)) => v,
+                _ => panic!(),
+            }
+        } else {
+            ::std::vec::Vec::new()
+        }
+    }
+}
+
+impl ::protobuf::Message for ObservableSubject {
+    fn is_initialized(&self) -> bool {
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream<'_>) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.category)?;
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_int32()?;
+                    self.ty = tmp;
+                },
+                3 => {
+                    ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.subject_id)?;
+                },
+                4 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeLengthDelimited {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    self.one_of_subject_payload = ::std::option::Option::Some(ObservableSubject_oneof_one_of_subject_payload::subject_payload(is.read_bytes()?));
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if !self.category.is_empty() {
+            my_size += ::protobuf::rt::string_size(1, &self.category);
+        }
+        if self.ty != 0 {
+            my_size += ::protobuf::rt::value_size(2, self.ty, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if !self.subject_id.is_empty() {
+            my_size += ::protobuf::rt::string_size(3, &self.subject_id);
+        }
+        if let ::std::option::Option::Some(ref v) = self.one_of_subject_payload {
+            match v {
+                &ObservableSubject_oneof_one_of_subject_payload::subject_payload(ref v) => {
+                    my_size += ::protobuf::rt::bytes_size(4, &v);
+                },
+            };
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream<'_>) -> ::protobuf::ProtobufResult<()> {
+        if !self.category.is_empty() {
+            os.write_string(1, &self.category)?;
+        }
+        if self.ty != 0 {
+            os.write_int32(2, self.ty)?;
+        }
+        if !self.subject_id.is_empty() {
+            os.write_string(3, &self.subject_id)?;
+        }
+        if let ::std::option::Option::Some(ref v) = self.one_of_subject_payload {
+            match v {
+                &ObservableSubject_oneof_one_of_subject_payload::subject_payload(ref v) => {
+                    os.write_bytes(4, v)?;
+                },
+            };
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &dyn (::std::any::Any) {
+        self as &dyn (::std::any::Any)
+    }
+    fn as_any_mut(&mut self) -> &mut dyn (::std::any::Any) {
+        self as &mut dyn (::std::any::Any)
+    }
+    fn into_any(self: ::std::boxed::Box<Self>) -> ::std::boxed::Box<dyn (::std::any::Any)> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        Self::descriptor_static()
+    }
+
+    fn new() -> ObservableSubject {
+        ObservableSubject::new()
+    }
+
+    fn descriptor_static() -> &'static ::protobuf::reflect::MessageDescriptor {
+        static descriptor: ::protobuf::rt::LazyV2<::protobuf::reflect::MessageDescriptor> = ::protobuf::rt::LazyV2::INIT;
+        descriptor.get(|| {
+            let mut fields = ::std::vec::Vec::new();
+            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
+                "category",
+                |m: &ObservableSubject| { &m.category },
+                |m: &mut ObservableSubject| { &mut m.category },
+            ));
+            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeInt32>(
+                "ty",
+                |m: &ObservableSubject| { &m.ty },
+                |m: &mut ObservableSubject| { &mut m.ty },
+            ));
+            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
+                "subject_id",
+                |m: &ObservableSubject| { &m.subject_id },
+                |m: &mut ObservableSubject| { &mut m.subject_id },
+            ));
+            fields.push(::protobuf::reflect::accessor::make_singular_bytes_accessor::<_>(
+                "subject_payload",
+                ObservableSubject::has_subject_payload,
+                ObservableSubject::get_subject_payload,
+            ));
+            ::protobuf::reflect::MessageDescriptor::new_pb_name::<ObservableSubject>(
+                "ObservableSubject",
+                fields,
+                file_descriptor_proto()
+            )
+        })
+    }
+
+    fn default_instance() -> &'static ObservableSubject {
+        static instance: ::protobuf::rt::LazyV2<ObservableSubject> = ::protobuf::rt::LazyV2::INIT;
+        instance.get(ObservableSubject::new)
+    }
+}
+
+impl ::protobuf::Clear for ObservableSubject {
+    fn clear(&mut self) {
+        self.category.clear();
+        self.ty = 0;
+        self.subject_id.clear();
+        self.one_of_subject_payload = ::std::option::Option::None;
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for ObservableSubject {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for ObservableSubject {
+    fn as_ref(&self) -> ::protobuf::reflect::ReflectValueRef {
+        ::protobuf::reflect::ReflectValueRef::Message(self)
+    }
+}
+
+static file_descriptor_proto_data: &'static [u8] = b"\
+    \n\rsubject.proto\"\xa3\x01\n\x11ObservableSubject\x12\x1a\n\x08category\
+    \x18\x01\x20\x01(\tR\x08category\x12\x0e\n\x02ty\x18\x02\x20\x01(\x05R\
+    \x02ty\x12\x1d\n\nsubject_id\x18\x03\x20\x01(\tR\tsubjectId\x12)\n\x0fsu\
+    bject_payload\x18\x04\x20\x01(\x0cH\0R\x0esubjectPayloadB\x18\n\x16one_o\
+    f_subject_payloadJ\xa1\x02\n\x06\x12\x04\0\0\x07\x01\n\x08\n\x01\x0c\x12\
+    \x03\0\0\x12\n\n\n\x02\x04\0\x12\x04\x02\0\x07\x01\n\n\n\x03\x04\0\x01\
+    \x12\x03\x02\x08\x19\n\x0b\n\x04\x04\0\x02\0\x12\x03\x03\x04\x18\n\x0c\n\
+    \x05\x04\0\x02\0\x05\x12\x03\x03\x04\n\n\x0c\n\x05\x04\0\x02\0\x01\x12\
+    \x03\x03\x0b\x13\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x03\x16\x17\n\x0b\n\
+    \x04\x04\0\x02\x01\x12\x03\x04\x04\x11\n\x0c\n\x05\x04\0\x02\x01\x05\x12\
+    \x03\x04\x04\t\n\x0c\n\x05\x04\0\x02\x01\x01\x12\x03\x04\n\x0c\n\x0c\n\
+    \x05\x04\0\x02\x01\x03\x12\x03\x04\x0f\x10\n\x0b\n\x04\x04\0\x02\x02\x12\
+    \x03\x05\x04\x1a\n\x0c\n\x05\x04\0\x02\x02\x05\x12\x03\x05\x04\n\n\x0c\n\
+    \x05\x04\0\x02\x02\x01\x12\x03\x05\x0b\x15\n\x0c\n\x05\x04\0\x02\x02\x03\
+    \x12\x03\x05\x18\x19\n\x0b\n\x04\x04\0\x08\0\x12\x03\x06\x04?\n\x0c\n\
+    \x05\x04\0\x08\0\x01\x12\x03\x06\n\x20\n\x0b\n\x04\x04\0\x02\x03\x12\x03\
+    \x06#=\n\x0c\n\x05\x04\0\x02\x03\x05\x12\x03\x06#(\n\x0c\n\x05\x04\0\x02\
+    \x03\x01\x12\x03\x06)8\n\x0c\n\x05\x04\0\x02\x03\x03\x12\x03\x06;<b\x06p\
+    roto3\
+";
+
+static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;
+
+fn parse_descriptor_proto() -> ::protobuf::descriptor::FileDescriptorProto {
+    ::protobuf::Message::parse_from_bytes(file_descriptor_proto_data).unwrap()
+}
+
+pub fn file_descriptor_proto() -> &'static ::protobuf::descriptor::FileDescriptorProto {
+    file_descriptor_proto_lazy.get(|| {
+        parse_descriptor_proto()
+    })
+}
--- a/rust-lib/flowy-observable/src/protobuf/proto/subject.proto
+++ b/rust-lib/flowy-observable/src/protobuf/proto/subject.proto
@ -0,0 +1,8 @@
+syntax = "proto3";
+
+message ObservableSubject {
+    string category = 1;
+    int32 ty = 2;
+    string subject_id = 3;
+    oneof one_of_subject_payload { bytes subject_payload = 4; };
+}
--- a/rust-lib/flowy-workspace/Cargo.toml
+++ b/rust-lib/flowy-workspace/Cargo.toml
@ -12,6 +12,7 @@ flowy-derive = { path = "../flowy-derive" }
 flowy-database = { path = "../flowy-database" }
 flowy-sqlite = { path = "../flowy-sqlite" }
 flowy-infra = { path = "../flowy-infra" }
+flowy-observable = { path = "../flowy-observable" }
 protobuf = {version = "2.18.0"}
 log = "0.4.14"
 diesel = {version = "1.4.7", features = ["sqlite"]}
--- a/rust-lib/flowy-workspace/Flowy.toml
+++ b/rust-lib/flowy-workspace/Flowy.toml
@ -1,3 +1,3 @@

-proto_crates = ["src/entities", "src/event.rs", "src/errors.rs"]
+proto_crates = ["src/entities", "src/event.rs", "src/errors.rs", "src/observable"]
 event_files = ["src/event.rs"]
--- a/rust-lib/flowy-workspace/src/lib.rs
+++ b/rust-lib/flowy-workspace/src/lib.rs
@ -7,6 +7,7 @@ mod sql_tables;

 #[macro_use]
 mod macros;
+mod observable;
 mod protobuf;
 mod services;

--- a/rust-lib/flowy-workspace/src/observable/mod.rs
+++ b/rust-lib/flowy-workspace/src/observable/mod.rs
@ -0,0 +1,3 @@
+mod observable;
+
+pub use observable::*;
--- a/rust-lib/flowy-workspace/src/observable/observable.rs
+++ b/rust-lib/flowy-workspace/src/observable/observable.rs
@ -0,0 +1,71 @@
+use flowy_derive::ProtoBuf_Enum;
+use flowy_dispatch::prelude::ToBytes;
+use flowy_observable::{dart::RustStreamSender, entities::ObservableSubject};
+const OBSERVABLE_CATEGORY: &'static str = "Workspace";
+
+#[derive(ProtoBuf_Enum, Debug)]
+pub(crate) enum ObservableType {
+    Unknown            = 0,
+
+    WorkspaceDidUpdate = 10,
+    AppDidUpdate       = 11,
+}
+
+impl std::default::Default for ObservableType {
+    fn default() -> Self { ObservableType::Unknown }
+}
+
+pub(crate) struct ObservableSender {
+    ty: ObservableType,
+    subject_id: String,
+    payload: Option<Vec<u8>>,
+}
+
+impl ObservableSender {
+    pub(crate) fn new(subject_id: &str, ty: ObservableType) -> Self {
+        Self {
+            subject_id: subject_id.to_owned(),
+            ty,
+            payload: None,
+        }
+    }
+
+    pub(crate) fn payload<T>(mut self, payload: T) -> Self
+    where
+        T: ToBytes,
+    {
+        let bytes = payload.into_bytes().unwrap();
+        self.payload = Some(bytes);
+        self
+    }
+
+    pub(crate) fn send(self) {
+        log::debug!(
+            "Workspace observable id: {}, ty: {:?}",
+            self.subject_id,
+            self.ty
+        );
+
+        let subject = ObservableSubject {
+            category: OBSERVABLE_CATEGORY.to_string(),
+            ty: self.ty as i32,
+            subject_id: self.subject_id,
+            subject_payload: self.payload,
+        };
+        match RustStreamSender::post(subject) {
+            Ok(_) => {},
+            Err(error) => log::error!("Send observable subject failed: {}", error),
+        }
+    }
+}
+
+pub(crate) fn send_observable(id: &str, ty: ObservableType) {
+    ObservableSender::new(id, ty).send();
+}
+
+pub(crate) fn send_observable_with_payload<T>(id: &str, ty: ObservableType, payload: T)
+where
+    T: ToBytes,
+{
+    ObservableSender::new(id, ty).payload(payload).send();
+}
--- a/rust-lib/flowy-workspace/src/protobuf/model/mod.rs
+++ b/rust-lib/flowy-workspace/src/protobuf/model/mod.rs
@ -3,6 +3,9 @@
 mod app_query; 
 pub use app_query::*; 

+mod observable; 
+pub use observable::*; 
+
 mod errors; 
 pub use errors::*; 

--- a/rust-lib/flowy-workspace/src/protobuf/model/observable.rs
+++ b/rust-lib/flowy-workspace/src/protobuf/model/observable.rs
@ -0,0 +1,103 @@
+// This file is generated by rust-protobuf 2.22.1. Do not edit
+// @generated
+
+// https://github.com/rust-lang/rust-clippy/issues/702
+#![allow(unknown_lints)]
+#![allow(clippy::all)]
+
+#![allow(unused_attributes)]
+#![cfg_attr(rustfmt, rustfmt::skip)]
+
+#![allow(box_pointers)]
+#![allow(dead_code)]
+#![allow(missing_docs)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(trivial_casts)]
+#![allow(unused_imports)]
+#![allow(unused_results)]
+//! Generated file from `observable.proto`
+
+/// Generated files are compatible only with the same version
+/// of protobuf runtime.
+// const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_22_1;
+
+#[derive(Clone,PartialEq,Eq,Debug,Hash)]
+pub enum ObservableType {
+    Unknown = 0,
+    WorkspaceDidUpdate = 10,
+    AppDidUpdate = 11,
+}
+
+impl ::protobuf::ProtobufEnum for ObservableType {
+    fn value(&self) -> i32 {
+        *self as i32
+    }
+
+    fn from_i32(value: i32) -> ::std::option::Option<ObservableType> {
+        match value {
+            0 => ::std::option::Option::Some(ObservableType::Unknown),
+            10 => ::std::option::Option::Some(ObservableType::WorkspaceDidUpdate),
+            11 => ::std::option::Option::Some(ObservableType::AppDidUpdate),
+            _ => ::std::option::Option::None
+        }
+    }
+
+    fn values() -> &'static [Self] {
+        static values: &'static [ObservableType] = &[
+            ObservableType::Unknown,
+            ObservableType::WorkspaceDidUpdate,
+            ObservableType::AppDidUpdate,
+        ];
+        values
+    }
+
+    fn enum_descriptor_static() -> &'static ::protobuf::reflect::EnumDescriptor {
+        static descriptor: ::protobuf::rt::LazyV2<::protobuf::reflect::EnumDescriptor> = ::protobuf::rt::LazyV2::INIT;
+        descriptor.get(|| {
+            ::protobuf::reflect::EnumDescriptor::new_pb_name::<ObservableType>("ObservableType", file_descriptor_proto())
+        })
+    }
+}
+
+impl ::std::marker::Copy for ObservableType {
+}
+
+impl ::std::default::Default for ObservableType {
+    fn default() -> Self {
+        ObservableType::Unknown
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for ObservableType {
+    fn as_ref(&self) -> ::protobuf::reflect::ReflectValueRef {
+        ::protobuf::reflect::ReflectValueRef::Enum(::protobuf::ProtobufEnum::descriptor(self))
+    }
+}
+
+static file_descriptor_proto_data: &'static [u8] = b"\
+    \n\x10observable.proto*G\n\x0eObservableType\x12\x0b\n\x07Unknown\x10\0\
+    \x12\x16\n\x12WorkspaceDidUpdate\x10\n\x12\x10\n\x0cAppDidUpdate\x10\x0b\
+    J\xa5\x01\n\x06\x12\x04\0\0\x06\x01\n\x08\n\x01\x0c\x12\x03\0\0\x12\n\n\
+    \n\x02\x05\0\x12\x04\x02\0\x06\x01\n\n\n\x03\x05\0\x01\x12\x03\x02\x05\
+    \x13\n\x0b\n\x04\x05\0\x02\0\x12\x03\x03\x04\x10\n\x0c\n\x05\x05\0\x02\0\
+    \x01\x12\x03\x03\x04\x0b\n\x0c\n\x05\x05\0\x02\0\x02\x12\x03\x03\x0e\x0f\
+    \n\x0b\n\x04\x05\0\x02\x01\x12\x03\x04\x04\x1c\n\x0c\n\x05\x05\0\x02\x01\
+    \x01\x12\x03\x04\x04\x16\n\x0c\n\x05\x05\0\x02\x01\x02\x12\x03\x04\x19\
+    \x1b\n\x0b\n\x04\x05\0\x02\x02\x12\x03\x05\x04\x16\n\x0c\n\x05\x05\0\x02\
+    \x02\x01\x12\x03\x05\x04\x10\n\x0c\n\x05\x05\0\x02\x02\x02\x12\x03\x05\
+    \x13\x15b\x06proto3\
+";
+
+static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;
+
+fn parse_descriptor_proto() -> ::protobuf::descriptor::FileDescriptorProto {
+    ::protobuf::Message::parse_from_bytes(file_descriptor_proto_data).unwrap()
+}
+
+pub fn file_descriptor_proto() -> &'static ::protobuf::descriptor::FileDescriptorProto {
+    file_descriptor_proto_lazy.get(|| {
+        parse_descriptor_proto()
+    })
+}
--- a/rust-lib/flowy-workspace/src/protobuf/proto/observable.proto
+++ b/rust-lib/flowy-workspace/src/protobuf/proto/observable.proto
@ -0,0 +1,7 @@
+syntax = "proto3";
+
+enum ObservableType {
+    Unknown = 0;
+    WorkspaceDidUpdate = 10;
+    AppDidUpdate = 11;
+}
--- a/rust-lib/flowy-workspace/src/services/app_controller.rs
+++ b/rust-lib/flowy-workspace/src/services/app_controller.rs
@ -5,6 +5,7 @@ use crate::{
    },
    errors::*,
    module::{WorkspaceDatabase, WorkspaceUser},
+    observable::*,
    services::ViewController,
    sql_tables::app::{AppTable, AppTableChangeset, AppTableSql},
 };
@ -35,7 +36,7 @@ impl AppController {
        let app_table = AppTable::new(params);
        let app: App = app_table.clone().into();
        let _ = self.sql.write_app_table(app_table)?;
-
+        send_observable(&app.workspace_id, ObservableType::WorkspaceDidUpdate);
        Ok(app)
    }

@ -46,7 +47,9 @@ impl AppController {

    pub fn update_app(&self, params: UpdateAppParams) -> Result<(), WorkspaceError> {
        let changeset = AppTableChangeset::new(params);
+        let app_id = changeset.id.clone();
        let _ = self.sql.update_app_table(changeset)?;
+        send_observable(&app_id, ObservableType::AppDidUpdate);
        Ok(())
    }

--- a/rust-lib/flowy-workspace/src/services/mod.rs
+++ b/rust-lib/flowy-workspace/src/services/mod.rs
@ -1,9 +1,9 @@
+pub use app_controller::*;
+pub use view_controller::*;
+pub use workspace_controller::*;
+
 mod app_controller;
 mod database;
 mod helper;
 mod view_controller;
 mod workspace_controller;
-
-pub use app_controller::*;
-pub use view_controller::*;
-pub use workspace_controller::*;
--- a/scripts/flowy-tool/src/proto/template/proto_file/struct_template.rs
+++ b/scripts/flowy-tool/src/proto/template/proto_file/struct_template.rs
@ -1,6 +1,7 @@
 use crate::util::get_tera;
 use flowy_ast::*;
 use phf::phf_map;
+use syn::__private::quote::__private::Ident;
 use tera::Context;

 // Protobuf data type : https://developers.google.com/protocol-buffers/docs/proto3
@ -47,10 +48,24 @@ impl StructTemplate {

        match field.bracket_category {
            Some(ref category) => match category {
-                BracketCategory::Opt => self.fields.push(format!(
-                    "oneof one_of_{} {{ {} {} = {}; }};",
-                    name, mapped_ty, name, index
-                )),
+                BracketCategory::Opt => match &field.bracket_inner_ty {
+                    None => {}
+                    Some(inner_ty) => match inner_ty.to_string().as_str() {
+                        //TODO: support hashmap or something else wrapped by Option
+                        "Vec" => {
+                            self.fields.push(format!(
+                                "oneof one_of_{} {{ bytes {} = {}; }};",
+                                name, name, index
+                            ));
+                        }
+                        _ => {
+                            self.fields.push(format!(
+                                "oneof one_of_{} {{ {} {} = {}; }};",
+                                name, mapped_ty, name, index
+                            ));
+                        }
+                    },
+                },
                BracketCategory::Map((k, v)) => {
                    let key: &str = k;
                    let value: &str = v;
@ -65,6 +80,7 @@ impl StructTemplate {
                }
                BracketCategory::Vec => {
                    let bracket_ty: &str = &field.bracket_ty.as_ref().unwrap().to_string();
+                    // Vec<u8>
                    if mapped_ty == "u8" && bracket_ty == "Vec" {
                        self.fields.push(format!("bytes {} = {};", name, index))
                    } else {
--- a/scripts/makefile/desktop.toml
+++ b/scripts/makefile/desktop.toml
@ -34,7 +34,7 @@ condition = { platforms = ["mac"] }
 dependencies = ["restore-crate-type"]
 script = [
  """
-    echo "🚀 🚀 🚀 Copy Flowy-SDK to flutter"
+    echo "🚀 🚀 🚀  Flowy-SDK build success"
    cp ${CARGO_MAKE_WORKSPACE_WORKING_DIRECTORY}/rust-lib/target/x86_64-apple-darwin/${LIB_OUT_DIR}/lib${CARGO_MAKE_CRATE_FS_NAME}.dylib \
    ${CARGO_MAKE_WORKSPACE_WORKING_DIRECTORY}/app_flowy/packages/flowy_sdk/macos/lib${CARGO_MAKE_CRATE_FS_NAME}.dylib
  """,