diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event.dart b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event.dart
deleted file mode 100644
index 8767b0c8c4..0000000000
--- a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event.dart
+++ /dev/null
@@ -1,568 +0,0 @@
-
-/// Auto generate. Do not edit
-part of '../../dispatch.dart';
-class FolderEventCreateWorkspace {
-     CreateWorkspaceRequest request;
-     FolderEventCreateWorkspace(this.request);
-
-    Future<Either<Workspace, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.CreateWorkspace.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(Workspace.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventReadCurWorkspace {
-    FolderEventReadCurWorkspace();
-
-    Future<Either<CurrentWorkspaceSetting, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = FolderEvent.ReadCurWorkspace.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (okBytes) => left(CurrentWorkspaceSetting.fromBuffer(okBytes)),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class FolderEventReadWorkspaces {
-     QueryWorkspaceRequest request;
-     FolderEventReadWorkspaces(this.request);
-
-    Future<Either<RepeatedWorkspace, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ReadWorkspaces.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(RepeatedWorkspace.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventDeleteWorkspace {
-     QueryWorkspaceRequest request;
-     FolderEventDeleteWorkspace(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.DeleteWorkspace.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventOpenWorkspace {
-     QueryWorkspaceRequest request;
-     FolderEventOpenWorkspace(this.request);
-
-    Future<Either<Workspace, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.OpenWorkspace.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(Workspace.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventReadWorkspaceApps {
-     QueryWorkspaceRequest request;
-     FolderEventReadWorkspaceApps(this.request);
-
-    Future<Either<RepeatedApp, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ReadWorkspaceApps.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(RepeatedApp.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventCreateApp {
-     CreateAppRequest request;
-     FolderEventCreateApp(this.request);
-
-    Future<Either<App, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.CreateApp.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(App.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventDeleteApp {
-     QueryAppRequest request;
-     FolderEventDeleteApp(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.DeleteApp.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventReadApp {
-     QueryAppRequest request;
-     FolderEventReadApp(this.request);
-
-    Future<Either<App, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ReadApp.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(App.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventUpdateApp {
-     UpdateAppRequest request;
-     FolderEventUpdateApp(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.UpdateApp.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventCreateView {
-     CreateViewRequest request;
-     FolderEventCreateView(this.request);
-
-    Future<Either<View, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.CreateView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(View.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventReadView {
-     QueryViewRequest request;
-     FolderEventReadView(this.request);
-
-    Future<Either<View, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ReadView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(View.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventUpdateView {
-     UpdateViewRequest request;
-     FolderEventUpdateView(this.request);
-
-    Future<Either<View, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.UpdateView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(View.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventDeleteView {
-     QueryViewRequest request;
-     FolderEventDeleteView(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.DeleteView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventDuplicateView {
-     QueryViewRequest request;
-     FolderEventDuplicateView(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.DuplicateView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventCopyLink {
-    FolderEventCopyLink();
-
-    Future<Either<Unit, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = FolderEvent.CopyLink.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (bytes) => left(unit),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class FolderEventOpenDocument {
-     QueryViewRequest request;
-     FolderEventOpenDocument(this.request);
-
-    Future<Either<DocumentDelta, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.OpenDocument.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(DocumentDelta.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventCloseView {
-     QueryViewRequest request;
-     FolderEventCloseView(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.CloseView.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventReadTrash {
-    FolderEventReadTrash();
-
-    Future<Either<RepeatedTrash, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = FolderEvent.ReadTrash.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (okBytes) => left(RepeatedTrash.fromBuffer(okBytes)),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class FolderEventPutbackTrash {
-     TrashId request;
-     FolderEventPutbackTrash(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.PutbackTrash.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventDeleteTrash {
-     RepeatedTrashId request;
-     FolderEventDeleteTrash(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.DeleteTrash.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventRestoreAllTrash {
-    FolderEventRestoreAllTrash();
-
-    Future<Either<Unit, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = FolderEvent.RestoreAllTrash.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (bytes) => left(unit),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class FolderEventDeleteAllTrash {
-    FolderEventDeleteAllTrash();
-
-    Future<Either<Unit, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = FolderEvent.DeleteAllTrash.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (bytes) => left(unit),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class FolderEventApplyDocDelta {
-     DocumentDelta request;
-     FolderEventApplyDocDelta(this.request);
-
-    Future<Either<DocumentDelta, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ApplyDocDelta.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(DocumentDelta.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class FolderEventExportDocument {
-     ExportRequest request;
-     FolderEventExportDocument(this.request);
-
-    Future<Either<ExportData, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = FolderEvent.ExportDocument.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(ExportData.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class NetworkEventUpdateNetworkType {
-     NetworkState request;
-     NetworkEventUpdateNetworkType(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = NetworkEvent.UpdateNetworkType.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class UserEventInitUser {
-    UserEventInitUser();
-
-    Future<Either<Unit, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = UserEvent.InitUser.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (bytes) => left(unit),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class UserEventSignIn {
-     SignInRequest request;
-     UserEventSignIn(this.request);
-
-    Future<Either<UserProfile, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = UserEvent.SignIn.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(UserProfile.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class UserEventSignUp {
-     SignUpRequest request;
-     UserEventSignUp(this.request);
-
-    Future<Either<UserProfile, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = UserEvent.SignUp.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(UserProfile.fromBuffer(okBytes)),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class UserEventSignOut {
-    UserEventSignOut();
-
-    Future<Either<Unit, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = UserEvent.SignOut.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (bytes) => left(unit),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class UserEventUpdateUser {
-     UpdateUserRequest request;
-     UserEventUpdateUser(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = UserEvent.UpdateUser.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class UserEventGetUserProfile {
-    UserEventGetUserProfile();
-
-    Future<Either<UserProfile, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = UserEvent.GetUserProfile.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (okBytes) => left(UserProfile.fromBuffer(okBytes)),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class UserEventCheckUser {
-    UserEventCheckUser();
-
-    Future<Either<UserProfile, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = UserEvent.CheckUser.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (okBytes) => left(UserProfile.fromBuffer(okBytes)),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-
-class UserEventSetAppearanceSetting {
-     AppearanceSettings request;
-     UserEventSetAppearanceSetting(this.request);
-
-    Future<Either<Unit, FlowyError>> send() {
-    final request = FFIRequest.create()
-          ..event = UserEvent.SetAppearanceSetting.toString()
-          ..payload = requestToBytes(this.request);
-
-    return Dispatch.asyncRequest(request)
-        .then((bytesResult) => bytesResult.fold(
-           (bytes) => left(unit),
-           (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-        ));
-    }
-}
-
-class UserEventGetAppearanceSetting {
-    UserEventGetAppearanceSetting();
-
-    Future<Either<AppearanceSettings, FlowyError>> send() {
-     final request = FFIRequest.create()
-        ..event = UserEvent.GetAppearanceSetting.toString();
-
-     return Dispatch.asyncRequest(request).then((bytesResult) => bytesResult.fold(
-        (okBytes) => left(AppearanceSettings.fromBuffer(okBytes)),
-        (errBytes) => right(FlowyError.fromBuffer(errBytes)),
-      ));
-    }
-}
-