diff --git a/backend/graph.png b/backend/graph.png
deleted file mode 100644
index e69de29bb2..0000000000
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 eca2545988..b402bce694 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/dispatch/dispatch.dart
@@ -101,7 +101,7 @@ Completer<Uint8List> _sendToRust(FFIRequest request) {
 
   final completer = Completer<Uint8List>();
   final port = singleCompletePort(completer);
-  ffi.async_command(port.nativePort, input, bytes.length);
+  ffi.async_event(port.nativePort, input, bytes.length);
   calloc.free(input);
 
   return completer;
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/ffi.dart b/frontend/app_flowy/packages/flowy_sdk/lib/ffi.dart
index 06fc5c60b2..71ea1b7286 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/ffi.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/ffi.dart
@@ -20,8 +20,8 @@ DynamicLibrary _open() {
   throw UnsupportedError('This platform is not supported.');
 }
 
-/// C function `async_command`.
-void async_command(
+/// C function `async_event`.
+void async_event(
   int port,
   Pointer<Uint8> input,
   int len,
@@ -29,7 +29,7 @@ void async_command(
   _invoke_async(port, input, len);
 }
 
-final _invoke_async_Dart _invoke_async = _dl.lookupFunction<_invoke_async_C, _invoke_async_Dart>('async_command');
+final _invoke_async_Dart _invoke_async = _dl.lookupFunction<_invoke_async_C, _invoke_async_Dart>('async_event');
 typedef _invoke_async_C = Void Function(
   Int64 port,
   Pointer<Uint8> input,
@@ -41,15 +41,15 @@ typedef _invoke_async_Dart = void Function(
   int len,
 );
 
-/// C function `command_sync`.
-Pointer<Uint8> sync_command(
+/// C function `sync_event`.
+Pointer<Uint8> sync_event(
   Pointer<Uint8> input,
   int len,
 ) {
   return _invoke_sync(input, len);
 }
 
-final _invoke_sync_Dart _invoke_sync = _dl.lookupFunction<_invoke_sync_C, _invoke_sync_Dart>('sync_command');
+final _invoke_sync_Dart _invoke_sync = _dl.lookupFunction<_invoke_sync_C, _invoke_sync_Dart>('sync_event');
 typedef _invoke_sync_C = Pointer<Uint8> Function(
   Pointer<Uint8> input,
   Uint64 len,
diff --git a/frontend/app_flowy/packages/flowy_sdk/macos/Classes/binding.h b/frontend/app_flowy/packages/flowy_sdk/macos/Classes/binding.h
index 036d56aa2a..a45d19dcef 100644
--- a/frontend/app_flowy/packages/flowy_sdk/macos/Classes/binding.h
+++ b/frontend/app_flowy/packages/flowy_sdk/macos/Classes/binding.h
@@ -3,12 +3,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-
 int64_t init_sdk(char *path);
 
-void async_command(int64_t port, const uint8_t *input, uintptr_t len);
+void async_event(int64_t port, const uint8_t *input, uintptr_t len);
 
-const uint8_t *sync_command(const uint8_t *input, uintptr_t len);
+const uint8_t *sync_event(const uint8_t *input, uintptr_t len);
 
 int32_t set_stream_port(int64_t port);
 
diff --git a/frontend/rust-lib/dart-ffi/binding.h b/frontend/rust-lib/dart-ffi/binding.h
index 036d56aa2a..a45d19dcef 100644
--- a/frontend/rust-lib/dart-ffi/binding.h
+++ b/frontend/rust-lib/dart-ffi/binding.h
@@ -3,12 +3,11 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-
 int64_t init_sdk(char *path);
 
-void async_command(int64_t port, const uint8_t *input, uintptr_t len);
+void async_event(int64_t port, const uint8_t *input, uintptr_t len);
 
-const uint8_t *sync_command(const uint8_t *input, uintptr_t len);
+const uint8_t *sync_event(const uint8_t *input, uintptr_t len);
 
 int32_t set_stream_port(int64_t port);
 
diff --git a/frontend/rust-lib/dart-ffi/src/lib.rs b/frontend/rust-lib/dart-ffi/src/lib.rs
index b2c5e4a914..4cf254c8a1 100644
--- a/frontend/rust-lib/dart-ffi/src/lib.rs
+++ b/frontend/rust-lib/dart-ffi/src/lib.rs
@@ -33,7 +33,7 @@ pub extern "C" fn init_sdk(path: *mut c_char) -> i64 {
 }
 
 #[no_mangle]
-pub extern "C" fn async_command(port: i64, input: *const u8, len: usize) {
+pub extern "C" fn async_event(port: i64, input: *const u8, len: usize) {
     let request: ModuleRequest = FFIRequest::from_u8_pointer(input, len).into();
     log::trace!(
         "[FFI]: {} Async Event: {:?} with {} port",
@@ -49,7 +49,7 @@ pub extern "C" fn async_command(port: i64, input: *const u8, len: usize) {
 }
 
 #[no_mangle]
-pub extern "C" fn sync_command(input: *const u8, len: usize) -> *const u8 {
+pub extern "C" fn sync_event(input: *const u8, len: usize) -> *const u8 {
     let request: ModuleRequest = FFIRequest::from_u8_pointer(input, len).into();
     log::trace!("[FFI]: {} Sync Event: {:?}", &request.id, &request.event,);
     let _response = EventDispatch::sync_send(dispatch(), request);