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
index 72789a1366..8767b0c8c4 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event.dart
@@ -1,6 +1,6 @@
 
 /// Auto generate. Do not edit
-part of 'dispatch.dart';
+part of '../../dispatch.dart';
 class FolderEventCreateWorkspace {
      CreateWorkspaceRequest request;
      FolderEventCreateWorkspace(this.request);
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-folder/dart_event.dart b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-folder/dart_event.dart
new file mode 100644
index 0000000000..21f7f3c598
--- /dev/null
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-folder/dart_event.dart
@@ -0,0 +1,413 @@
+
+/// 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)),
+        ));
+    }
+}
+
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-net/dart_event.dart b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-net/dart_event.dart
new file mode 100644
index 0000000000..19f1bd0f09
--- /dev/null
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-net/dart_event.dart
@@ -0,0 +1,20 @@
+
+/// Auto generate. Do not edit
+part of '../../dispatch.dart';
+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)),
+        ));
+    }
+}
+
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-user/dart_event.dart b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-user/dart_event.dart
new file mode 100644
index 0000000000..c40fdd5a02
--- /dev/null
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dart_event/flowy-user/dart_event.dart
@@ -0,0 +1,141 @@
+
+/// Auto generate. Do not edit
+part of '../../dispatch.dart';
+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)),
+      ));
+    }
+}
+
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart
index 40c7a06867..a376f7d3b0 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart
@@ -27,7 +27,9 @@ import 'package:protobuf/protobuf.dart';
 import 'dart:convert' show utf8;
 import 'error.dart';
 
-part 'dart_event.dart';
+part 'dart_event/flowy-folder/dart_event.dart';
+part 'dart_event/flowy-net/dart_event.dart';
+part 'dart_event/flowy-user/dart_event.dart';
 
 enum FFIException {
   RequestIsEmpty,
diff --git a/frontend/rust-lib/dart-ffi/build.rs b/frontend/rust-lib/dart-ffi/build.rs
index 91c656ce10..7f06ab48c8 100644
--- a/frontend/rust-lib/dart-ffi/build.rs
+++ b/frontend/rust-lib/dart-ffi/build.rs
@@ -1,17 +1,5 @@
 use lib_infra::code_gen;
-use lib_infra::code_gen::dart_event;
 
 fn main() {
     code_gen::protobuf_file::gen(env!("CARGO_PKG_NAME"), "./src/protobuf/proto");
-    #[cfg(feature = "flutter")]
-    copy_dart_event_files();
-}
-
-#[cfg(feature = "flutter")]
-fn copy_dart_event_files() {
-    let workspace_dir = std::env::var("CARGO_MAKE_WORKING_DIRECTORY").unwrap();
-    let flutter_sdk_path = std::env::var("FLUTTER_FLOWY_SDK_PATH").unwrap();
-    let output_file = format!("{}/{}/lib/dispatch/dart_event.dart", workspace_dir, flutter_sdk_path);
-    println!("cargo:rerun-if-changed={}", output_file);
-    dart_event::write_dart_event_file(&output_file);
 }
diff --git a/shared-lib/lib-infra/src/code_gen/dart_event/dart_event.rs b/shared-lib/lib-infra/src/code_gen/dart_event/dart_event.rs
index 4f21256661..2e8845bf15 100644
--- a/shared-lib/lib-infra/src/code_gen/dart_event/dart_event.rs
+++ b/shared-lib/lib-infra/src/code_gen/dart_event/dart_event.rs
@@ -4,6 +4,7 @@ use crate::code_gen::util::{cache_dir, is_crate_dir, is_hidden, read_file};
 use flowy_ast::{event_ast::*, *};
 use std::fs::File;
 use std::io::Write;
+use std::path::Path;
 use syn::Item;
 use walkdir::WalkDir;
 
@@ -13,7 +14,7 @@ pub fn gen(crate_name: &str) {
     let event_ast = event_crates.iter().map(parse_event_crate).flatten().collect::<Vec<_>>();
 
     let event_render_ctx = ast_to_event_render_ctx(event_ast.as_ref());
-    let mut render_result = String::new();
+    let mut render_result = DART_IMPORTED.to_owned();
     for (index, render_ctx) in event_render_ctx.into_iter().enumerate() {
         let mut event_template = EventTemplate::new();
 
@@ -22,8 +23,19 @@ pub fn gen(crate_name: &str) {
         }
     }
 
-    let cache_dir = format!("{}/{}", cache_dir(), crate_name);
-    let dart_event_file_path = format!("{}/dart_event.dart", cache_dir);
+    let dart_event_folder = format!(
+        "{}/{}/lib/dispatch/dart_event/{}",
+        env!("CARGO_MAKE_WORKING_DIRECTORY"),
+        env!("FLUTTER_FLOWY_SDK_PATH"),
+        crate_name
+    );
+
+    if !Path::new(&dart_event_folder).exists() {
+        std::fs::create_dir_all(&dart_event_folder).unwrap();
+    }
+
+    let dart_event_file_path = format!("{}/dart_event.dart", dart_event_folder);
+    println!("cargo:rerun-if-changed={}", dart_event_file_path);
 
     match std::fs::OpenOptions::new()
         .create(true)
@@ -44,7 +56,7 @@ pub fn gen(crate_name: &str) {
 
 const DART_IMPORTED: &str = r#"
 /// Auto generate. Do not edit
-part of 'dispatch.dart';
+part of '../../dispatch.dart';
 "#;
 
 pub fn write_dart_event_file(file_path: &str) {