diff --git a/backend/src/services/document/controller.rs b/backend/src/services/document/controller.rs
index 78527c8016..4098b37f8e 100644
--- a/backend/src/services/document/controller.rs
+++ b/backend/src/services/document/controller.rs
@@ -3,7 +3,7 @@ use crate::services::{
         persistence::{create_doc, read_doc},
         ws_actor::{DocumentWebSocketActor, WSActorMessage},
     },
-    web_socket::{WebSocketReceiver, WSClientData},
+    web_socket::{WSClientData, WebSocketReceiver},
 };
 
 use crate::context::FlowyPersistence;
@@ -18,13 +18,13 @@ use flowy_collaboration::{
 };
 use lib_infra::future::FutureResultSend;
 
+use flowy_collaboration::sync::{DocumentPersistence, ServerDocumentManager};
 use std::{
     convert::TryInto,
     fmt::{Debug, Formatter},
     sync::Arc,
 };
 use tokio::sync::{mpsc, oneshot};
-use flowy_collaboration::sync::{DocumentPersistence, ServerDocumentManager};
 
 pub fn make_document_ws_receiver(persistence: Arc<FlowyPersistence>) -> Arc<DocumentWebSocketReceiver> {
     let document_persistence = Arc::new(DocumentPersistenceImpl(persistence.clone()));
@@ -95,13 +95,13 @@ impl DocumentPersistence for DocumentPersistenceImpl {
         })
     }
 
-    fn create_doc(&self, revision: Revision) -> FutureResultSend<DocumentInfo, CollaborateError> {
+    fn create_doc(&self, doc_id: &str, revisions: Vec<Revision>) -> FutureResultSend<DocumentInfo, CollaborateError> {
         let kv_store = self.0.kv_store();
+        let doc_id = doc_id.to_owned();
         FutureResultSend::new(async move {
-            let doc: DocumentInfo = revision.clone().try_into()?;
-            let doc_id = revision.doc_id.clone();
-            let revisions = RepeatedRevision { items: vec![revision] };
-
+            let doc = DocumentInfo::from_revisions(&doc_id, revisions.clone())?;
+            let doc_id = doc_id.to_owned();
+            let revisions = RepeatedRevision::new(revisions);
             let params = CreateDocParams { id: doc_id, revisions };
             let pb_params: flowy_collaboration::protobuf::CreateDocParams = params.try_into().unwrap();
             let _ = create_doc(&kv_store, pb_params)
@@ -125,6 +125,19 @@ impl DocumentPersistence for DocumentPersistenceImpl {
 
         FutureResultSend::new(async move { f().await.map_err(server_error_to_collaborate_error) })
     }
+
+    fn get_doc_revisions(&self, doc_id: &str) -> FutureResultSend<Vec<Revision>, CollaborateError> {
+        let kv_store = self.0.kv_store();
+        let doc_id = doc_id.to_owned();
+        let f = || async move {
+            let mut pb = kv_store.get_doc_revisions(&doc_id).await?;
+            let repeated_revision: RepeatedRevision = (&mut pb).try_into()?;
+            let revisions = repeated_revision.into_inner();
+            Ok(revisions)
+        };
+
+        FutureResultSend::new(async move { f().await.map_err(server_error_to_collaborate_error) })
+    }
 }
 
 fn server_error_to_collaborate_error(error: ServerError) -> CollaborateError {
diff --git a/backend/src/services/document/persistence/kv_store.rs b/backend/src/services/document/persistence/kv_store.rs
index 24b6722f4f..6ed5a29d0a 100644
--- a/backend/src/services/document/persistence/kv_store.rs
+++ b/backend/src/services/document/persistence/kv_store.rs
@@ -49,6 +49,11 @@ impl DocumentKVPersistence {
         Ok(())
     }
 
+    pub(crate) async fn get_doc_revisions(&self, doc_id: &str) -> Result<RepeatedRevision, ServerError> {
+        let items = self.inner.batch_get_start_with(doc_id).await?;
+        Ok(key_value_items_to_revisions(items))
+    }
+
     pub(crate) async fn batch_get_revisions<T: Into<Option<Vec<i64>>>>(
         &self,
         doc_id: &str,
@@ -56,7 +61,7 @@ impl DocumentKVPersistence {
     ) -> Result<RepeatedRevision, ServerError> {
         let rev_ids = rev_ids.into();
         let items = match rev_ids {
-            None => self.inner.batch_get_key_start_with(doc_id).await?,
+            None => self.inner.batch_get_start_with(doc_id).await?,
             Some(rev_ids) => {
                 let keys = rev_ids
                     .into_iter()
@@ -66,17 +71,7 @@ impl DocumentKVPersistence {
             },
         };
 
-        let mut revisions = items
-            .into_iter()
-            .filter_map(|kv| parse_from_bytes::<Revision>(&kv.value).ok())
-            .collect::<Vec<Revision>>();
-
-        // TODO: optimize sort
-        revisions.sort_by(|a, b| a.rev_id.cmp(&b.rev_id));
-
-        let mut repeated_revision = RepeatedRevision::new();
-        repeated_revision.set_items(revisions.into());
-        Ok(repeated_revision)
+        Ok(key_value_items_to_revisions(items))
     }
 
     pub(crate) async fn batch_delete_revisions<T: Into<Option<Vec<i64>>>>(
@@ -101,5 +96,18 @@ impl DocumentKVPersistence {
     }
 }
 
+#[inline]
+fn key_value_items_to_revisions(items: Vec<KeyValue>) -> RepeatedRevision {
+    let mut revisions = items
+        .into_iter()
+        .filter_map(|kv| parse_from_bytes::<Revision>(&kv.value).ok())
+        .collect::<Vec<Revision>>();
+
+    revisions.sort_by(|a, b| a.rev_id.cmp(&b.rev_id));
+    let mut repeated_revision = RepeatedRevision::new();
+    repeated_revision.set_items(revisions.into());
+    repeated_revision
+}
+
 #[inline]
 fn make_revision_key(doc_id: &str, rev_id: i64) -> String { format!("{}:{}", doc_id, rev_id) }
diff --git a/backend/src/services/document/persistence/postgres.rs b/backend/src/services/document/persistence/postgres.rs
index 57f941fb00..283b01587c 100644
--- a/backend/src/services/document/persistence/postgres.rs
+++ b/backend/src/services/document/persistence/postgres.rs
@@ -57,7 +57,7 @@ fn make_doc_from_revisions(doc_id: &str, mut revisions: RepeatedRevision) -> Res
     if revisions.is_empty() {
         return Err(ServerError::record_not_found().context(format!("{} not exist", doc_id)));
     }
-
+    
     let mut document_delta = RichTextDelta::new();
     let mut base_rev_id = 0;
     let mut rev_id = 0;
@@ -70,7 +70,7 @@ fn make_doc_from_revisions(doc_id: &str, mut revisions: RepeatedRevision) -> Res
     }
     let text = document_delta.to_json();
     let mut document_info = DocumentInfo::new();
-    document_info.set_id(doc_id.to_owned());
+    document_info.set_doc_id(doc_id.to_owned());
     document_info.set_text(text);
     document_info.set_base_rev_id(base_rev_id);
     document_info.set_rev_id(rev_id);
diff --git a/backend/src/services/document/ws_actor.rs b/backend/src/services/document/ws_actor.rs
index 91425eb0c8..9eb42e6617 100644
--- a/backend/src/services/document/ws_actor.rs
+++ b/backend/src/services/document/ws_actor.rs
@@ -6,8 +6,9 @@ use crate::{
 use actix_rt::task::spawn_blocking;
 use async_stream::stream;
 use backend_service::errors::{internal_error, Result, ServerError};
+
 use flowy_collaboration::{
-    protobuf::{DocumentClientWSData, DocumentClientWSDataType, RepeatedRevision, Revision},
+    protobuf::{DocumentClientWSData, DocumentClientWSDataType, Revision},
     sync::{RevisionUser, ServerDocumentManager, SyncResponse},
 };
 use futures::stream::StreamExt;
@@ -67,18 +68,15 @@ impl DocumentWebSocketActor {
 
     async fn handle_client_data(&self, client_data: WSClientData, persistence: Arc<FlowyPersistence>) -> Result<()> {
         let WSClientData { user, socket, data } = client_data;
-        let document_data = spawn_blocking(move || {
-            let document_data: DocumentClientWSData = parse_from_bytes(&data)?;
-            Result::Ok(document_data)
-        })
-        .await
-        .map_err(internal_error)??;
+        let document_client_data = spawn_blocking(move || parse_from_bytes::<DocumentClientWSData>(&data))
+            .await
+            .map_err(internal_error)??;
 
         tracing::debug!(
-            "[HTTP_SERVER_WS]: receive client data: {}:{}, {:?}",
-            document_data.doc_id,
-            document_data.id,
-            document_data.ty
+            "[DocumentWebSocketActor]: receive client data: {}:{}, {:?}",
+            document_client_data.doc_id,
+            document_client_data.id,
+            document_client_data.ty
         );
 
         let user = Arc::new(ServerDocUser {
@@ -87,33 +85,26 @@ impl DocumentWebSocketActor {
             persistence,
         });
 
-        match match &document_data.ty {
-            DocumentClientWSDataType::ClientPushRev => self.handle_pushed_rev(user, document_data.data).await,
-        } {
+        match self.handle_revision(user, document_client_data).await {
             Ok(_) => {},
             Err(e) => {
-                tracing::error!("[HTTP_SERVER_WS]: process client data error {:?}", e);
+                tracing::error!("[DocumentWebSocketActor]: process client data error {:?}", e);
             },
         }
         Ok(())
     }
 
-    async fn handle_pushed_rev(&self, user: Arc<ServerDocUser>, data: Vec<u8>) -> Result<()> {
-        let repeated_revision = spawn_blocking(move || parse_from_bytes::<RepeatedRevision>(&data))
-            .await
-            .map_err(internal_error)??;
-        self.handle_revision(user, repeated_revision).await
-    }
+    async fn handle_revision(&self, user: Arc<ServerDocUser>, client_data: DocumentClientWSData) -> Result<()> {
+        match &client_data.ty {
+            DocumentClientWSDataType::ClientPushRev => {
+                let _ = self
+                    .doc_manager
+                    .apply_revisions(user, client_data)
+                    .await
+                    .map_err(internal_error)?;
+            },
+        }
 
-    async fn handle_revision(&self, user: Arc<ServerDocUser>, mut revisions: RepeatedRevision) -> Result<()> {
-        let repeated_revision: flowy_collaboration::entities::revision::RepeatedRevision =
-            (&mut revisions).try_into().map_err(internal_error)?;
-        let revisions = repeated_revision.into_inner();
-        let _ = self
-            .doc_manager
-            .apply_revisions(user, revisions)
-            .await
-            .map_err(internal_error)?;
         Ok(())
     }
 }
diff --git a/backend/src/services/kv/kv.rs b/backend/src/services/kv/kv.rs
index 7fca6d9fbd..5220ad42d9 100644
--- a/backend/src/services/kv/kv.rs
+++ b/backend/src/services/kv/kv.rs
@@ -158,9 +158,9 @@ impl KVStore for PostgresKV {
         })
     }
 
-    fn batch_get_key_start_with(&self, prefix: &str) -> FutureResultSend<Vec<KeyValue>, ServerError> {
+    fn batch_get_start_with(&self, key: &str) -> FutureResultSend<Vec<KeyValue>, ServerError> {
         let pg_pool = self.pg_pool.clone();
-        let prefix = prefix.to_owned();
+        let prefix = key.to_owned();
         FutureResultSend::new(async move {
             let mut transaction = pg_pool
                 .begin()
diff --git a/backend/src/services/kv/mod.rs b/backend/src/services/kv/mod.rs
index ee2220a080..82b816d692 100644
--- a/backend/src/services/kv/mod.rs
+++ b/backend/src/services/kv/mod.rs
@@ -19,7 +19,7 @@ pub trait KVStore: Send + Sync {
     fn delete(&self, key: &str) -> FutureResultSend<(), ServerError>;
     fn batch_set(&self, kvs: Vec<KeyValue>) -> FutureResultSend<(), ServerError>;
     fn batch_get(&self, keys: Vec<String>) -> FutureResultSend<Vec<KeyValue>, ServerError>;
-    fn batch_get_key_start_with(&self, keyword: &str) -> FutureResultSend<Vec<KeyValue>, ServerError>;
+    fn batch_get_start_with(&self, key: &str) -> FutureResultSend<Vec<KeyValue>, ServerError>;
 
     fn batch_delete(&self, keys: Vec<String>) -> FutureResultSend<(), ServerError>;
     fn batch_delete_key_start_with(&self, keyword: &str) -> FutureResultSend<(), ServerError>;
diff --git a/backend/tests/api_test/workspace_test.rs b/backend/tests/api_test/workspace_test.rs
index 4a6f621c66..69acda6fa9 100644
--- a/backend/tests/api_test/workspace_test.rs
+++ b/backend/tests/api_test/workspace_test.rs
@@ -258,7 +258,7 @@ async fn doc_create() {
 
     let params = CreateDocParams {
         id: doc_id.clone(),
-        revisions: RepeatedRevision { items: revisions },
+        revisions: RepeatedRevision::new(revisions),
     };
     server.create_doc(params).await;
 
diff --git a/frontend/app_flowy/packages/flowy_infra/pubspec.lock b/frontend/app_flowy/packages/flowy_infra/pubspec.lock
index 0b9eaad115..4cfc4b3c40 100644
--- a/frontend/app_flowy/packages/flowy_infra/pubspec.lock
+++ b/frontend/app_flowy/packages/flowy_infra/pubspec.lock
@@ -211,7 +211,7 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   xml:
     dependency: transitive
     description:
@@ -220,5 +220,5 @@ packages:
     source: hosted
     version: "5.2.0"
 sdks:
-  dart: ">=2.13.0 <3.0.0"
+  dart: ">=2.14.0 <3.0.0"
   flutter: ">=1.24.0-7.0"
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pb.dart b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pb.dart
index 9c55344cff..f85bce986d 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pb.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pb.dart
@@ -77,7 +77,7 @@ class CreateDocParams extends $pb.GeneratedMessage {
 
 class DocumentInfo extends $pb.GeneratedMessage {
   static final $pb.BuilderInfo _i = $pb.BuilderInfo(const $core.bool.fromEnvironment('protobuf.omit_message_names') ? '' : 'DocumentInfo', createEmptyInstance: create)
-    ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'id')
+    ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'docId')
     ..aOS(2, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'text')
     ..aInt64(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'revId')
     ..aInt64(4, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'baseRevId')
@@ -86,14 +86,14 @@ class DocumentInfo extends $pb.GeneratedMessage {
 
   DocumentInfo._() : super();
   factory DocumentInfo({
-    $core.String? id,
+    $core.String? docId,
     $core.String? text,
     $fixnum.Int64? revId,
     $fixnum.Int64? baseRevId,
   }) {
     final _result = create();
-    if (id != null) {
-      _result.id = id;
+    if (docId != null) {
+      _result.docId = docId;
     }
     if (text != null) {
       _result.text = text;
@@ -128,13 +128,13 @@ class DocumentInfo extends $pb.GeneratedMessage {
   static DocumentInfo? _defaultInstance;
 
   @$pb.TagNumber(1)
-  $core.String get id => $_getSZ(0);
+  $core.String get docId => $_getSZ(0);
   @$pb.TagNumber(1)
-  set id($core.String v) { $_setString(0, v); }
+  set docId($core.String v) { $_setString(0, v); }
   @$pb.TagNumber(1)
-  $core.bool hasId() => $_has(0);
+  $core.bool hasDocId() => $_has(0);
   @$pb.TagNumber(1)
-  void clearId() => clearField(1);
+  void clearDocId() => clearField(1);
 
   @$pb.TagNumber(2)
   $core.String get text => $_getSZ(1);
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pbjson.dart b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pbjson.dart
index 5afa8cbcb7..061b00bb55 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pbjson.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/doc.pbjson.dart
@@ -23,7 +23,7 @@ final $typed_data.Uint8List createDocParamsDescriptor = $convert.base64Decode('C
 const DocumentInfo$json = const {
   '1': 'DocumentInfo',
   '2': const [
-    const {'1': 'id', '3': 1, '4': 1, '5': 9, '10': 'id'},
+    const {'1': 'doc_id', '3': 1, '4': 1, '5': 9, '10': 'docId'},
     const {'1': 'text', '3': 2, '4': 1, '5': 9, '10': 'text'},
     const {'1': 'rev_id', '3': 3, '4': 1, '5': 3, '10': 'revId'},
     const {'1': 'base_rev_id', '3': 4, '4': 1, '5': 3, '10': 'baseRevId'},
@@ -31,7 +31,7 @@ const DocumentInfo$json = const {
 };
 
 /// Descriptor for `DocumentInfo`. Decode as a `google.protobuf.DescriptorProto`.
-final $typed_data.Uint8List documentInfoDescriptor = $convert.base64Decode('CgxEb2N1bWVudEluZm8SDgoCaWQYASABKAlSAmlkEhIKBHRleHQYAiABKAlSBHRleHQSFQoGcmV2X2lkGAMgASgDUgVyZXZJZBIeCgtiYXNlX3Jldl9pZBgEIAEoA1IJYmFzZVJldklk');
+final $typed_data.Uint8List documentInfoDescriptor = $convert.base64Decode('CgxEb2N1bWVudEluZm8SFQoGZG9jX2lkGAEgASgJUgVkb2NJZBISCgR0ZXh0GAIgASgJUgR0ZXh0EhUKBnJldl9pZBgDIAEoA1IFcmV2SWQSHgoLYmFzZV9yZXZfaWQYBCABKANSCWJhc2VSZXZJZA==');
 @$core.Deprecated('Use resetDocumentParamsDescriptor instead')
 const ResetDocumentParams$json = const {
   '1': 'ResetDocumentParams',
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pb.dart b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pb.dart
index aa1c64afac..e4492d6d29 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pb.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pb.dart
@@ -9,6 +9,8 @@ import 'dart:core' as $core;
 
 import 'package:protobuf/protobuf.dart' as $pb;
 
+import 'revision.pb.dart' as $0;
+
 import 'ws.pbenum.dart';
 
 export 'ws.pbenum.dart';
@@ -17,7 +19,7 @@ class DocumentClientWSData extends $pb.GeneratedMessage {
   static final $pb.BuilderInfo _i = $pb.BuilderInfo(const $core.bool.fromEnvironment('protobuf.omit_message_names') ? '' : 'DocumentClientWSData', createEmptyInstance: create)
     ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'docId')
     ..e<DocumentClientWSDataType>(2, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'ty', $pb.PbFieldType.OE, defaultOrMaker: DocumentClientWSDataType.ClientPushRev, valueOf: DocumentClientWSDataType.valueOf, enumValues: DocumentClientWSDataType.values)
-    ..a<$core.List<$core.int>>(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'data', $pb.PbFieldType.OY)
+    ..aOM<$0.RepeatedRevision>(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'revisions', subBuilder: $0.RepeatedRevision.create)
     ..aOS(4, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'id')
     ..hasRequiredFields = false
   ;
@@ -26,7 +28,7 @@ class DocumentClientWSData extends $pb.GeneratedMessage {
   factory DocumentClientWSData({
     $core.String? docId,
     DocumentClientWSDataType? ty,
-    $core.List<$core.int>? data,
+    $0.RepeatedRevision? revisions,
     $core.String? id,
   }) {
     final _result = create();
@@ -36,8 +38,8 @@ class DocumentClientWSData extends $pb.GeneratedMessage {
     if (ty != null) {
       _result.ty = ty;
     }
-    if (data != null) {
-      _result.data = data;
+    if (revisions != null) {
+      _result.revisions = revisions;
     }
     if (id != null) {
       _result.id = id;
@@ -84,13 +86,15 @@ class DocumentClientWSData extends $pb.GeneratedMessage {
   void clearTy() => clearField(2);
 
   @$pb.TagNumber(3)
-  $core.List<$core.int> get data => $_getN(2);
+  $0.RepeatedRevision get revisions => $_getN(2);
   @$pb.TagNumber(3)
-  set data($core.List<$core.int> v) { $_setBytes(2, v); }
+  set revisions($0.RepeatedRevision v) { setField(3, v); }
   @$pb.TagNumber(3)
-  $core.bool hasData() => $_has(2);
+  $core.bool hasRevisions() => $_has(2);
   @$pb.TagNumber(3)
-  void clearData() => clearField(3);
+  void clearRevisions() => clearField(3);
+  @$pb.TagNumber(3)
+  $0.RepeatedRevision ensureRevisions() => $_ensure(2);
 
   @$pb.TagNumber(4)
   $core.String get id => $_getSZ(3);
@@ -107,7 +111,6 @@ class DocumentServerWSData extends $pb.GeneratedMessage {
     ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'docId')
     ..e<DocumentServerWSDataType>(2, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'ty', $pb.PbFieldType.OE, defaultOrMaker: DocumentServerWSDataType.ServerAck, valueOf: DocumentServerWSDataType.valueOf, enumValues: DocumentServerWSDataType.values)
     ..a<$core.List<$core.int>>(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'data', $pb.PbFieldType.OY)
-    ..aOS(4, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'id')
     ..hasRequiredFields = false
   ;
 
@@ -116,7 +119,6 @@ class DocumentServerWSData extends $pb.GeneratedMessage {
     $core.String? docId,
     DocumentServerWSDataType? ty,
     $core.List<$core.int>? data,
-    $core.String? id,
   }) {
     final _result = create();
     if (docId != null) {
@@ -128,9 +130,6 @@ class DocumentServerWSData extends $pb.GeneratedMessage {
     if (data != null) {
       _result.data = data;
     }
-    if (id != null) {
-      _result.id = id;
-    }
     return _result;
   }
   factory DocumentServerWSData.fromBuffer($core.List<$core.int> i, [$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) => create()..mergeFromBuffer(i, r);
@@ -180,15 +179,6 @@ class DocumentServerWSData extends $pb.GeneratedMessage {
   $core.bool hasData() => $_has(2);
   @$pb.TagNumber(3)
   void clearData() => clearField(3);
-
-  @$pb.TagNumber(4)
-  $core.String get id => $_getSZ(3);
-  @$pb.TagNumber(4)
-  set id($core.String v) { $_setString(3, v); }
-  @$pb.TagNumber(4)
-  $core.bool hasId() => $_has(3);
-  @$pb.TagNumber(4)
-  void clearId() => clearField(4);
 }
 
 class NewDocumentUser extends $pb.GeneratedMessage {
diff --git a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pbjson.dart b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pbjson.dart
index 78d6000e1b..129523e47e 100644
--- a/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pbjson.dart
+++ b/frontend/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-collaboration/ws.pbjson.dart
@@ -37,13 +37,13 @@ const DocumentClientWSData$json = const {
   '2': const [
     const {'1': 'doc_id', '3': 1, '4': 1, '5': 9, '10': 'docId'},
     const {'1': 'ty', '3': 2, '4': 1, '5': 14, '6': '.DocumentClientWSDataType', '10': 'ty'},
-    const {'1': 'data', '3': 3, '4': 1, '5': 12, '10': 'data'},
+    const {'1': 'revisions', '3': 3, '4': 1, '5': 11, '6': '.RepeatedRevision', '10': 'revisions'},
     const {'1': 'id', '3': 4, '4': 1, '5': 9, '10': 'id'},
   ],
 };
 
 /// Descriptor for `DocumentClientWSData`. Decode as a `google.protobuf.DescriptorProto`.
-final $typed_data.Uint8List documentClientWSDataDescriptor = $convert.base64Decode('ChREb2N1bWVudENsaWVudFdTRGF0YRIVCgZkb2NfaWQYASABKAlSBWRvY0lkEikKAnR5GAIgASgOMhkuRG9jdW1lbnRDbGllbnRXU0RhdGFUeXBlUgJ0eRISCgRkYXRhGAMgASgMUgRkYXRhEg4KAmlkGAQgASgJUgJpZA==');
+final $typed_data.Uint8List documentClientWSDataDescriptor = $convert.base64Decode('ChREb2N1bWVudENsaWVudFdTRGF0YRIVCgZkb2NfaWQYASABKAlSBWRvY0lkEikKAnR5GAIgASgOMhkuRG9jdW1lbnRDbGllbnRXU0RhdGFUeXBlUgJ0eRIvCglyZXZpc2lvbnMYAyABKAsyES5SZXBlYXRlZFJldmlzaW9uUglyZXZpc2lvbnMSDgoCaWQYBCABKAlSAmlk');
 @$core.Deprecated('Use documentServerWSDataDescriptor instead')
 const DocumentServerWSData$json = const {
   '1': 'DocumentServerWSData',
@@ -51,12 +51,11 @@ const DocumentServerWSData$json = const {
     const {'1': 'doc_id', '3': 1, '4': 1, '5': 9, '10': 'docId'},
     const {'1': 'ty', '3': 2, '4': 1, '5': 14, '6': '.DocumentServerWSDataType', '10': 'ty'},
     const {'1': 'data', '3': 3, '4': 1, '5': 12, '10': 'data'},
-    const {'1': 'id', '3': 4, '4': 1, '5': 9, '10': 'id'},
   ],
 };
 
 /// Descriptor for `DocumentServerWSData`. Decode as a `google.protobuf.DescriptorProto`.
-final $typed_data.Uint8List documentServerWSDataDescriptor = $convert.base64Decode('ChREb2N1bWVudFNlcnZlcldTRGF0YRIVCgZkb2NfaWQYASABKAlSBWRvY0lkEikKAnR5GAIgASgOMhkuRG9jdW1lbnRTZXJ2ZXJXU0RhdGFUeXBlUgJ0eRISCgRkYXRhGAMgASgMUgRkYXRhEg4KAmlkGAQgASgJUgJpZA==');
+final $typed_data.Uint8List documentServerWSDataDescriptor = $convert.base64Decode('ChREb2N1bWVudFNlcnZlcldTRGF0YRIVCgZkb2NfaWQYASABKAlSBWRvY0lkEikKAnR5GAIgASgOMhkuRG9jdW1lbnRTZXJ2ZXJXU0RhdGFUeXBlUgJ0eRISCgRkYXRhGAMgASgMUgRkYXRh');
 @$core.Deprecated('Use newDocumentUserDescriptor instead')
 const NewDocumentUser$json = const {
   '1': 'NewDocumentUser',
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs b/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs
index 0d24cc4c2f..15152c8f09 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs
+++ b/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs
@@ -115,7 +115,7 @@ impl RevisionLoader {
             let delta_data = Bytes::from(doc.text.clone());
             let doc_md5 = md5(&delta_data);
             let revision = Revision::new(
-                &doc.id,
+                &doc.doc_id,
                 doc.base_rev_id,
                 doc.rev_id,
                 delta_data,
@@ -158,7 +158,7 @@ fn mk_doc_from_revisions(doc_id: &str, revisions: Vec<Revision>) -> FlowyResult<
     correct_delta_if_need(&mut delta);
 
     Result::<DocumentInfo, FlowyError>::Ok(DocumentInfo {
-        id: doc_id.to_owned(),
+        doc_id: doc_id.to_owned(),
         text: delta.to_json(),
         rev_id,
         base_rev_id,
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs b/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs
index a9903b0859..7d14872823 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs
+++ b/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs
@@ -5,7 +5,7 @@ use crate::services::{
 use async_stream::stream;
 use bytes::Bytes;
 use flowy_collaboration::entities::{
-    revision::RevisionRange,
+    revision::{RevId, RevisionRange},
     ws::{DocumentClientWSData, DocumentServerWSData, DocumentServerWSDataType, NewDocumentUser},
 };
 use flowy_error::{internal_error, FlowyError, FlowyResult};
@@ -172,12 +172,7 @@ impl DocumentWSStream {
     }
 
     async fn handle_message(&self, msg: DocumentServerWSData) -> FlowyResult<()> {
-        let DocumentServerWSData {
-            doc_id: _,
-            ty,
-            data,
-            id,
-        } = msg;
+        let DocumentServerWSData { doc_id: _, ty, data } = msg;
         let bytes = spawn_blocking(move || Bytes::from(data))
             .await
             .map_err(internal_error)?;
@@ -186,14 +181,14 @@ impl DocumentWSStream {
         match ty {
             DocumentServerWSDataType::ServerPushRev => {
                 let _ = self.consumer.receive_push_revision(bytes).await?;
-                let _ = self.consumer.receive_ack(id, ty).await;
             },
             DocumentServerWSDataType::ServerPullRev => {
                 let range = RevisionRange::try_from(bytes)?;
                 let _ = self.consumer.pull_revisions_in_range(range).await?;
             },
             DocumentServerWSDataType::ServerAck => {
-                let _ = self.consumer.receive_ack(id, ty).await;
+                let rev_id = RevId::try_from(bytes).unwrap().value;
+                let _ = self.consumer.receive_ack(rev_id.to_string(), ty).await;
             },
             DocumentServerWSDataType::UserConnect => {
                 let new_user = NewDocumentUser::try_from(bytes)?;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs b/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs
index 099e4bba69..167dc5a75a 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs
+++ b/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs
@@ -1,10 +1,5 @@
 use crate::services::doc::{
-    web_socket::{
-        local_ws_impl::LocalWebSocketManager,
-        DocumentWSSinkDataProvider,
-        DocumentWSSteamConsumer,
-        HttpWebSocketManager,
-    },
+    web_socket::{DocumentWSSinkDataProvider, DocumentWSSteamConsumer, HttpWebSocketManager},
     DocumentMD5,
     DocumentWSReceiver,
     DocumentWebSocket,
@@ -40,6 +35,33 @@ pub(crate) async fn make_document_ws_manager(
     rev_manager: Arc<RevisionManager>,
     ws: Arc<dyn DocumentWebSocket>,
 ) -> Arc<dyn DocumentWebSocketManager> {
+    // if cfg!(feature = "http_server") {
+    //     let shared_sink =
+    // Arc::new(SharedWSSinkDataProvider::new(rev_manager.clone()));
+    //     let ws_stream_consumer = Arc::new(DocumentWebSocketSteamConsumerAdapter {
+    //         doc_id: doc_id.clone(),
+    //         user_id: user_id.clone(),
+    //         editor_edit_queue: editor_edit_queue.clone(),
+    //         rev_manager: rev_manager.clone(),
+    //         shared_sink: shared_sink.clone(),
+    //     });
+    //     let ws_stream_provider =
+    // DocumentWSSinkDataProviderAdapter(shared_sink.clone());
+    //     let ws_manager = Arc::new(HttpWebSocketManager::new(
+    //         &doc_id,
+    //         ws.clone(),
+    //         Arc::new(ws_stream_provider),
+    //         ws_stream_consumer,
+    //     ));
+    //     notify_user_has_connected(&user_id, &doc_id, rev_manager.clone(),
+    // shared_sink).await;     listen_document_ws_state(&user_id, &doc_id,
+    // ws_manager.scribe_state(), rev_manager.clone());
+    //
+    //     Arc::new(ws_manager)
+    // } else {
+    //     Arc::new(Arc::new(LocalWebSocketManager {}))
+    // }
+
     let shared_sink = Arc::new(SharedWSSinkDataProvider::new(rev_manager.clone()));
     let ws_stream_consumer = Arc::new(DocumentWebSocketSteamConsumerAdapter {
         doc_id: doc_id.clone(),
@@ -124,7 +146,8 @@ impl DocumentWSSteamConsumer for DocumentWebSocketSteamConsumerAdapter {
             if let Some(server_composed_revision) =
                 handle_push_rev(&doc_id, &user_id, edit_cmd_tx, rev_manager, bytes).await?
             {
-                shared_sink.push_back(server_composed_revision.into()).await;
+                let data = DocumentClientWSData::from_revisions(&doc_id, vec![server_composed_revision]);
+                shared_sink.push_back(data).await;
             }
             Ok(())
         })
@@ -143,15 +166,11 @@ impl DocumentWSSteamConsumer for DocumentWebSocketSteamConsumerAdapter {
     fn pull_revisions_in_range(&self, range: RevisionRange) -> FutureResult<(), FlowyError> {
         let rev_manager = self.rev_manager.clone();
         let shared_sink = self.shared_sink.clone();
+        let doc_id = self.doc_id.clone();
         FutureResult::new(async move {
-            let data = rev_manager
-                .get_revisions_in_range(range)
-                .await?
-                .into_iter()
-                .map(|revision| revision.into())
-                .collect::<Vec<DocumentClientWSData>>();
-
-            shared_sink.append(data).await;
+            let revisions = rev_manager.get_revisions_in_range(range).await?;
+            let data = DocumentClientWSData::from_revisions(&doc_id, revisions);
+            shared_sink.push_back(data).await;
             Ok(())
         })
     }
@@ -260,18 +279,11 @@ impl SharedWSSinkDataProvider {
         }
     }
 
-    // TODO: return Option<&DocumentWSData> would be better
-    pub(crate) async fn front(&self) -> Option<DocumentClientWSData> { self.shared.read().await.front().cloned() }
-
+    #[allow(dead_code)]
     pub(crate) async fn push_front(&self, data: DocumentClientWSData) { self.shared.write().await.push_front(data); }
 
     async fn push_back(&self, data: DocumentClientWSData) { self.shared.write().await.push_back(data); }
 
-    async fn append(&self, data: Vec<DocumentClientWSData>) {
-        let mut buf: VecDeque<_> = data.into_iter().collect();
-        self.shared.write().await.append(&mut buf);
-    }
-
     async fn next(&self) -> FlowyResult<Option<DocumentClientWSData>> {
         let source_ty = self.source_ty.read().await.clone();
         match source_ty {
@@ -281,7 +293,7 @@ impl SharedWSSinkDataProvider {
                     Ok(None)
                 },
                 Some(data) => {
-                    tracing::debug!("[DocumentSinkDataProvider]: {}:{:?}", data.doc_id, data.ty);
+                    tracing::debug!("[SharedWSSinkDataProvider]: {}:{:?}", data.doc_id, data.ty);
                     Ok(Some(data.clone()))
                 },
             },
@@ -293,8 +305,9 @@ impl SharedWSSinkDataProvider {
 
                 match self.rev_manager.next_sync_revision().await? {
                     Some(rev) => {
-                        tracing::debug!("[DocumentSinkDataProvider]: {}:{:?}", rev.doc_id, rev.rev_id);
-                        Ok(Some(rev.into()))
+                        tracing::debug!("[SharedWSSinkDataProvider]: {}:{:?}", rev.doc_id, rev.rev_id);
+                        let doc_id = rev.doc_id.clone();
+                        Ok(Some(DocumentClientWSData::from_revisions(&doc_id, vec![rev])))
                     },
                     None => Ok(None),
                 }
@@ -310,10 +323,11 @@ impl SharedWSSinkDataProvider {
                 let should_pop = match self.shared.read().await.front() {
                     None => false,
                     Some(val) => {
-                        if val.id == id {
+                        let expected_id = val.id();
+                        if expected_id == id {
                             true
                         } else {
-                            tracing::error!("The front element's {} is not equal to the {}", val.id, id);
+                            tracing::error!("The front element's {} is not equal to the {}", expected_id, id);
                             false
                         }
                     },
diff --git a/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs b/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs
index 6a95a9adab..4bfa2896b3 100644
--- a/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs
+++ b/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs
@@ -15,7 +15,7 @@ impl DocumentServerAPI for DocServerMock {
 
     fn read_doc(&self, _token: &str, params: DocIdentifier) -> FutureResult<Option<DocumentInfo>, FlowyError> {
         let doc = DocumentInfo {
-            id: params.doc_id,
+            doc_id: params.doc_id,
             text: initial_delta_string(),
             rev_id: 0,
             base_rev_id: 0,
diff --git a/frontend/rust-lib/flowy-virtual-net/src/mock/server.rs b/frontend/rust-lib/flowy-virtual-net/src/mock/server.rs
index 25afd7f792..ee1be4cdb2 100644
--- a/frontend/rust-lib/flowy-virtual-net/src/mock/server.rs
+++ b/frontend/rust-lib/flowy-virtual-net/src/mock/server.rs
@@ -1,11 +1,11 @@
 use bytes::Bytes;
 use dashmap::DashMap;
 use flowy_collaboration::{entities::prelude::*, errors::CollaborateError, sync::*};
-use flowy_net::services::ws::*;
+// use flowy_net::services::ws::*;
 use lib_infra::future::FutureResultSend;
 use lib_ws::{WSModule, WebSocketRawMessage};
 use std::{
-    convert::{TryFrom, TryInto},
+    convert::TryInto,
     fmt::{Debug, Formatter},
     sync::Arc,
 };
@@ -24,21 +24,20 @@ impl std::default::Default for MockDocServer {
 }
 
 impl MockDocServer {
-    pub async fn handle_ws_data(&self, ws_data: DocumentClientWSData) -> Option<mpsc::Receiver<WebSocketRawMessage>> {
-        let bytes = Bytes::from(ws_data.data);
-        match ws_data.ty {
+    pub async fn handle_client_data(
+        &self,
+        client_data: DocumentClientWSData,
+    ) -> Option<mpsc::Receiver<WebSocketRawMessage>> {
+        match client_data.ty {
             DocumentClientWSDataType::ClientPushRev => {
-                let revisions = RepeatedRevision::try_from(bytes).unwrap().into_inner();
-                if revisions.is_empty() {
-                    return None;
-                }
-                let first_revision = revisions.first().unwrap();
                 let (tx, rx) = mpsc::channel(1);
                 let user = Arc::new(MockDocUser {
-                    user_id: first_revision.user_id.clone(),
+                    user_id: "fake_user_id".to_owned(),
                     tx,
                 });
-                self.manager.apply_revisions(user, revisions).await.unwrap();
+                let pb_client_data: flowy_collaboration::protobuf::DocumentClientWSData =
+                    client_data.try_into().unwrap();
+                self.manager.apply_revisions(user, pb_client_data).await.unwrap();
                 Some(rx)
             },
         }
@@ -79,16 +78,16 @@ impl DocumentPersistence for MockDocServerPersistence {
         })
     }
 
-    fn create_doc(&self, revision: Revision) -> FutureResultSend<DocumentInfo, CollaborateError> {
-        FutureResultSend::new(async move {
-            let document_info: DocumentInfo = revision.try_into().unwrap();
-            Ok(document_info)
-        })
+    fn create_doc(&self, doc_id: &str, revisions: Vec<Revision>) -> FutureResultSend<DocumentInfo, CollaborateError> {
+        let doc_id = doc_id.to_owned();
+        FutureResultSend::new(async move { DocumentInfo::from_revisions(&doc_id, revisions) })
     }
 
     fn get_revisions(&self, _doc_id: &str, _rev_ids: Vec<i64>) -> FutureResultSend<Vec<Revision>, CollaborateError> {
-        unimplemented!()
+        FutureResultSend::new(async move { Ok(vec![]) })
     }
+
+    fn get_doc_revisions(&self, _doc_id: &str) -> FutureResultSend<Vec<Revision>, CollaborateError> { unimplemented!() }
 }
 
 #[derive(Debug)]
diff --git a/frontend/rust-lib/flowy-virtual-net/src/mock/ws_local.rs b/frontend/rust-lib/flowy-virtual-net/src/mock/ws_local.rs
index 9c042c1bdb..2af11e6241 100644
--- a/frontend/rust-lib/flowy-virtual-net/src/mock/ws_local.rs
+++ b/frontend/rust-lib/flowy-virtual-net/src/mock/ws_local.rs
@@ -47,7 +47,7 @@ impl FlowyWebSocket for MockWebSocket {
                 } else {
                     let ws_data = DocumentClientWSData::try_from(Bytes::from(message.data.clone())).unwrap();
 
-                    if let Some(mut rx) = server.handle_ws_data(ws_data).await {
+                    if let Some(mut rx) = server.handle_client_data(ws_data).await {
                         let new_ws_message = rx.recv().await.unwrap();
                         match receivers.get(&new_ws_message.module) {
                             None => tracing::error!("Can't find any handler for message: {:?}", new_ws_message),
diff --git a/shared-lib/flowy-collaboration/src/entities/doc.rs b/shared-lib/flowy-collaboration/src/entities/doc.rs
index d34905fc6c..1665d04e1d 100644
--- a/shared-lib/flowy-collaboration/src/entities/doc.rs
+++ b/shared-lib/flowy-collaboration/src/entities/doc.rs
@@ -1,9 +1,9 @@
 use crate::{
     entities::revision::{RepeatedRevision, Revision},
-    errors::CollaborateError,
+    errors::{internal_error, CollaborateError},
 };
 use flowy_derive::ProtoBuf;
-use lib_ot::{errors::OTError, rich_text::RichTextDelta};
+use lib_ot::{core::OperationTransformable, errors::OTError, rich_text::RichTextDelta};
 
 #[derive(ProtoBuf, Default, Debug, Clone)]
 pub struct CreateDocParams {
@@ -17,7 +17,7 @@ pub struct CreateDocParams {
 #[derive(ProtoBuf, Default, Debug, Clone, Eq, PartialEq)]
 pub struct DocumentInfo {
     #[pb(index = 1)]
-    pub id: String,
+    pub doc_id: String,
 
     #[pb(index = 2)]
     pub text: String,
@@ -34,6 +34,27 @@ impl DocumentInfo {
         let delta = RichTextDelta::from_bytes(&self.text)?;
         Ok(delta)
     }
+
+    pub fn from_revisions(doc_id: &str, revisions: Vec<Revision>) -> Result<Self, CollaborateError> {
+        let mut document_delta = RichTextDelta::new();
+        let mut base_rev_id = 0;
+        let mut rev_id = 0;
+
+        for revision in revisions {
+            base_rev_id = revision.base_rev_id;
+            rev_id = revision.rev_id;
+            let delta = RichTextDelta::from_bytes(revision.delta_data).map_err(internal_error)?;
+            document_delta = document_delta.compose(&delta).map_err(internal_error)?;
+        }
+        let text = document_delta.to_json();
+
+        Ok(DocumentInfo {
+            doc_id: doc_id.to_string(),
+            text,
+            rev_id,
+            base_rev_id,
+        })
+    }
 }
 
 impl std::convert::TryFrom<Revision> for DocumentInfo {
@@ -49,7 +70,7 @@ impl std::convert::TryFrom<Revision> for DocumentInfo {
         let doc_json = delta.to_json();
 
         Ok(DocumentInfo {
-            id: revision.doc_id,
+            doc_id: revision.doc_id,
             text: doc_json,
             rev_id: revision.rev_id,
             base_rev_id: revision.base_rev_id,
diff --git a/shared-lib/flowy-collaboration/src/entities/revision.rs b/shared-lib/flowy-collaboration/src/entities/revision.rs
index 942b3a26e9..74ba24345d 100644
--- a/shared-lib/flowy-collaboration/src/entities/revision.rs
+++ b/shared-lib/flowy-collaboration/src/entities/revision.rs
@@ -100,7 +100,7 @@ impl std::fmt::Debug for Revision {
 #[derive(PartialEq, Debug, Default, ProtoBuf, Clone)]
 pub struct RepeatedRevision {
     #[pb(index = 1)]
-    pub items: Vec<Revision>,
+    items: Vec<Revision>,
 }
 
 impl std::ops::Deref for RepeatedRevision {
@@ -114,6 +114,16 @@ impl std::ops::DerefMut for RepeatedRevision {
 }
 
 impl RepeatedRevision {
+    pub fn new(items: Vec<Revision>) -> Self {
+        if cfg!(debug_assertions) {
+            let mut sorted_items = items.clone();
+            sorted_items.sort_by(|a, b| a.rev_id.cmp(&b.rev_id));
+            assert_eq!(sorted_items, items, "The items passed in should be sorted")
+        }
+
+        Self { items }
+    }
+
     pub fn into_inner(self) -> Vec<Revision> { self.items }
 }
 
diff --git a/shared-lib/flowy-collaboration/src/entities/ws.rs b/shared-lib/flowy-collaboration/src/entities/ws.rs
index 9fbb762f44..dd51b800c5 100644
--- a/shared-lib/flowy-collaboration/src/entities/ws.rs
+++ b/shared-lib/flowy-collaboration/src/entities/ws.rs
@@ -1,5 +1,5 @@
 use crate::{
-    entities::revision::{RepeatedRevision, Revision, RevisionRange},
+    entities::revision::{RepeatedRevision, RevId, Revision, RevisionRange},
     errors::CollaborateError,
 };
 use bytes::Bytes;
@@ -33,24 +33,28 @@ pub struct DocumentClientWSData {
     pub ty: DocumentClientWSDataType,
 
     #[pb(index = 3)]
-    pub data: Vec<u8>,
+    pub revisions: RepeatedRevision,
 
     #[pb(index = 4)]
-    pub id: String,
+    id: String,
 }
 
-impl std::convert::From<Revision> for DocumentClientWSData {
-    fn from(revision: Revision) -> Self {
-        let doc_id = revision.doc_id.clone();
-        let rev_id = revision.rev_id;
-        let bytes: Bytes = revision.try_into().unwrap();
+impl DocumentClientWSData {
+    pub fn from_revisions(doc_id: &str, revisions: Vec<Revision>) -> Self {
+        let rev_id = match revisions.first() {
+            None => 0,
+            Some(revision) => revision.rev_id,
+        };
+
         Self {
-            doc_id,
+            doc_id: doc_id.to_owned(),
             ty: DocumentClientWSDataType::ClientPushRev,
-            data: bytes.to_vec(),
+            revisions: RepeatedRevision::new(revisions),
             id: rev_id.to_string(),
         }
     }
+
+    pub fn id(&self) -> String { self.id.clone() }
 }
 
 #[derive(Debug, Clone, ProtoBuf_Enum, Eq, PartialEq, Hash)]
@@ -75,57 +79,38 @@ pub struct DocumentServerWSData {
 
     #[pb(index = 3)]
     pub data: Vec<u8>,
-
-    #[pb(index = 4)]
-    pub id: String,
 }
 
 pub struct DocumentServerWSDataBuilder();
 impl DocumentServerWSDataBuilder {
-    // DocumentWSDataType::PushRev -> Revision
-    pub fn build_push_message(doc_id: &str, revisions: Vec<Revision>, id: &str) -> DocumentServerWSData {
-        let repeated_revision = RepeatedRevision { items: revisions };
+    pub fn build_push_message(doc_id: &str, revisions: Vec<Revision>) -> DocumentServerWSData {
+        let repeated_revision = RepeatedRevision::new(revisions);
         let bytes: Bytes = repeated_revision.try_into().unwrap();
         DocumentServerWSData {
             doc_id: doc_id.to_string(),
             ty: DocumentServerWSDataType::ServerPushRev,
             data: bytes.to_vec(),
-            id: id.to_string(),
         }
     }
 
-    // DocumentWSDataType::PullRev -> RevisionRange
-    pub fn build_pull_message(doc_id: &str, range: RevisionRange, rev_id: i64) -> DocumentServerWSData {
+    pub fn build_pull_message(doc_id: &str, range: RevisionRange) -> DocumentServerWSData {
         let bytes: Bytes = range.try_into().unwrap();
         DocumentServerWSData {
             doc_id: doc_id.to_string(),
             ty: DocumentServerWSDataType::ServerPullRev,
             data: bytes.to_vec(),
-            id: rev_id.to_string(),
         }
     }
 
-    // DocumentWSDataType::Ack -> RevId
-    pub fn build_ack_message(doc_id: &str, id: &str) -> DocumentServerWSData {
+    pub fn build_ack_message(doc_id: &str, rev_id: i64) -> DocumentServerWSData {
+        let rev_id: RevId = rev_id.into();
+        let bytes: Bytes = rev_id.try_into().unwrap();
         DocumentServerWSData {
             doc_id: doc_id.to_string(),
             ty: DocumentServerWSDataType::ServerAck,
-            data: vec![],
-            id: id.to_string(),
+            data: bytes.to_vec(),
         }
     }
-
-    // DocumentWSDataType::UserConnect -> DocumentConnected
-    // pub fn build_new_document_user_message(doc_id: &str, new_document_user:
-    // NewDocumentUser) -> DocumentServerWSData {     let id =
-    // new_document_user.user_id.clone();     let bytes: Bytes =
-    // new_document_user.try_into().unwrap();     DocumentServerWSData {
-    //         doc_id: doc_id.to_string(),
-    //         ty: DocumentServerWSDataType::UserConnect,
-    //         data: bytes.to_vec(),
-    //         id,
-    //     }
-    // }
 }
 
 #[derive(ProtoBuf, Default, Debug, Clone)]
diff --git a/shared-lib/flowy-collaboration/src/protobuf/model/doc.rs b/shared-lib/flowy-collaboration/src/protobuf/model/doc.rs
index 9655a108fb..7a6349bf90 100644
--- a/shared-lib/flowy-collaboration/src/protobuf/model/doc.rs
+++ b/shared-lib/flowy-collaboration/src/protobuf/model/doc.rs
@@ -242,7 +242,7 @@ impl ::protobuf::reflect::ProtobufValue for CreateDocParams {
 #[derive(PartialEq,Clone,Default)]
 pub struct DocumentInfo {
     // message fields
-    pub id: ::std::string::String,
+    pub doc_id: ::std::string::String,
     pub text: ::std::string::String,
     pub rev_id: i64,
     pub base_rev_id: i64,
@@ -262,30 +262,30 @@ impl DocumentInfo {
         ::std::default::Default::default()
     }
 
-    // string id = 1;
+    // string doc_id = 1;
 
 
-    pub fn get_id(&self) -> &str {
-        &self.id
+    pub fn get_doc_id(&self) -> &str {
+        &self.doc_id
     }
-    pub fn clear_id(&mut self) {
-        self.id.clear();
+    pub fn clear_doc_id(&mut self) {
+        self.doc_id.clear();
     }
 
     // Param is passed by value, moved
-    pub fn set_id(&mut self, v: ::std::string::String) {
-        self.id = v;
+    pub fn set_doc_id(&mut self, v: ::std::string::String) {
+        self.doc_id = v;
     }
 
     // Mutable pointer to the field.
     // If field is not initialized, it is initialized with default value first.
-    pub fn mut_id(&mut self) -> &mut ::std::string::String {
-        &mut self.id
+    pub fn mut_doc_id(&mut self) -> &mut ::std::string::String {
+        &mut self.doc_id
     }
 
     // Take field
-    pub fn take_id(&mut self) -> ::std::string::String {
-        ::std::mem::replace(&mut self.id, ::std::string::String::new())
+    pub fn take_doc_id(&mut self) -> ::std::string::String {
+        ::std::mem::replace(&mut self.doc_id, ::std::string::String::new())
     }
 
     // string text = 2;
@@ -355,7 +355,7 @@ impl ::protobuf::Message for DocumentInfo {
             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.id)?;
+                    ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.doc_id)?;
                 },
                 2 => {
                     ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.text)?;
@@ -386,8 +386,8 @@ impl ::protobuf::Message for DocumentInfo {
     #[allow(unused_variables)]
     fn compute_size(&self) -> u32 {
         let mut my_size = 0;
-        if !self.id.is_empty() {
-            my_size += ::protobuf::rt::string_size(1, &self.id);
+        if !self.doc_id.is_empty() {
+            my_size += ::protobuf::rt::string_size(1, &self.doc_id);
         }
         if !self.text.is_empty() {
             my_size += ::protobuf::rt::string_size(2, &self.text);
@@ -404,8 +404,8 @@ impl ::protobuf::Message for DocumentInfo {
     }
 
     fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream<'_>) -> ::protobuf::ProtobufResult<()> {
-        if !self.id.is_empty() {
-            os.write_string(1, &self.id)?;
+        if !self.doc_id.is_empty() {
+            os.write_string(1, &self.doc_id)?;
         }
         if !self.text.is_empty() {
             os.write_string(2, &self.text)?;
@@ -455,9 +455,9 @@ impl ::protobuf::Message for DocumentInfo {
         descriptor.get(|| {
             let mut fields = ::std::vec::Vec::new();
             fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
-                "id",
-                |m: &DocumentInfo| { &m.id },
-                |m: &mut DocumentInfo| { &mut m.id },
+                "doc_id",
+                |m: &DocumentInfo| { &m.doc_id },
+                |m: &mut DocumentInfo| { &mut m.doc_id },
             ));
             fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
                 "text",
@@ -490,7 +490,7 @@ impl ::protobuf::Message for DocumentInfo {
 
 impl ::protobuf::Clear for DocumentInfo {
     fn clear(&mut self) {
-        self.id.clear();
+        self.doc_id.clear();
         self.text.clear();
         self.rev_id = 0;
         self.base_rev_id = 0;
@@ -1325,64 +1325,64 @@ impl ::protobuf::reflect::ProtobufValue for DocIdentifier {
 static file_descriptor_proto_data: &'static [u8] = b"\
     \n\tdoc.proto\x1a\x0erevision.proto\"R\n\x0fCreateDocParams\x12\x0e\n\
     \x02id\x18\x01\x20\x01(\tR\x02id\x12/\n\trevisions\x18\x02\x20\x01(\x0b2\
-    \x11.RepeatedRevisionR\trevisions\"i\n\x0cDocumentInfo\x12\x0e\n\x02id\
-    \x18\x01\x20\x01(\tR\x02id\x12\x12\n\x04text\x18\x02\x20\x01(\tR\x04text\
-    \x12\x15\n\x06rev_id\x18\x03\x20\x01(\x03R\x05revId\x12\x1e\n\x0bbase_re\
-    v_id\x18\x04\x20\x01(\x03R\tbaseRevId\"]\n\x13ResetDocumentParams\x12\
-    \x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12/\n\trevisions\x18\x02\
-    \x20\x01(\x0b2\x11.RepeatedRevisionR\trevisions\":\n\rDocumentDelta\x12\
-    \x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12\x12\n\x04text\x18\x02\
-    \x20\x01(\tR\x04text\"S\n\nNewDocUser\x12\x17\n\x07user_id\x18\x01\x20\
-    \x01(\tR\x06userId\x12\x15\n\x06rev_id\x18\x02\x20\x01(\x03R\x05revId\
-    \x12\x15\n\x06doc_id\x18\x03\x20\x01(\tR\x05docId\"&\n\rDocIdentifier\
-    \x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docIdJ\xaf\x07\n\x06\x12\x04\
-    \0\0\x1c\x01\n\x08\n\x01\x0c\x12\x03\0\0\x12\n\t\n\x02\x03\0\x12\x03\x01\
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-    \x0b\r\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x04\x10\x11\n\x0b\n\x04\x04\0\
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-    \x01\x12\x03\x0f\x15\x1e\n\x0c\n\x05\x04\x02\x02\x01\x03\x12\x03\x0f!\"\
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-    \n\x04\x04\x03\x02\x01\x12\x03\x13\x04\x14\n\x0c\n\x05\x04\x03\x02\x01\
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-    \x0f\n\x0c\n\x05\x04\x03\x02\x01\x03\x12\x03\x13\x12\x13\n\n\n\x02\x04\
-    \x04\x12\x04\x15\0\x19\x01\n\n\n\x03\x04\x04\x01\x12\x03\x15\x08\x12\n\
-    \x0b\n\x04\x04\x04\x02\0\x12\x03\x16\x04\x17\n\x0c\n\x05\x04\x04\x02\0\
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-    \n\x0c\n\x05\x04\x04\x02\0\x03\x12\x03\x16\x15\x16\n\x0b\n\x04\x04\x04\
-    \x02\x01\x12\x03\x17\x04\x15\n\x0c\n\x05\x04\x04\x02\x01\x05\x12\x03\x17\
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-    \x03\x12\x03\x18\x14\x15\n\n\n\x02\x04\x05\x12\x04\x1a\0\x1c\x01\n\n\n\
-    \x03\x04\x05\x01\x12\x03\x1a\x08\x15\n\x0b\n\x04\x04\x05\x02\0\x12\x03\
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-    \x03\x1b\x14\x15b\x06proto3\
+    \x11.RepeatedRevisionR\trevisions\"p\n\x0cDocumentInfo\x12\x15\n\x06doc_\
+    id\x18\x01\x20\x01(\tR\x05docId\x12\x12\n\x04text\x18\x02\x20\x01(\tR\
+    \x04text\x12\x15\n\x06rev_id\x18\x03\x20\x01(\x03R\x05revId\x12\x1e\n\
+    \x0bbase_rev_id\x18\x04\x20\x01(\x03R\tbaseRevId\"]\n\x13ResetDocumentPa\
+    rams\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12/\n\trevisions\
+    \x18\x02\x20\x01(\x0b2\x11.RepeatedRevisionR\trevisions\":\n\rDocumentDe\
+    lta\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12\x12\n\x04text\
+    \x18\x02\x20\x01(\tR\x04text\"S\n\nNewDocUser\x12\x17\n\x07user_id\x18\
+    \x01\x20\x01(\tR\x06userId\x12\x15\n\x06rev_id\x18\x02\x20\x01(\x03R\x05\
+    revId\x12\x15\n\x06doc_id\x18\x03\x20\x01(\tR\x05docId\"&\n\rDocIdentifi\
+    er\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docIdJ\xaf\x07\n\x06\x12\
+    \x04\0\0\x1c\x01\n\x08\n\x01\x0c\x12\x03\0\0\x12\n\t\n\x02\x03\0\x12\x03\
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+    \x03\x13\x0b\x0f\n\x0c\n\x05\x04\x03\x02\x01\x03\x12\x03\x13\x12\x13\n\n\
+    \n\x02\x04\x04\x12\x04\x15\0\x19\x01\n\n\n\x03\x04\x04\x01\x12\x03\x15\
+    \x08\x12\n\x0b\n\x04\x04\x04\x02\0\x12\x03\x16\x04\x17\n\x0c\n\x05\x04\
+    \x04\x02\0\x05\x12\x03\x16\x04\n\n\x0c\n\x05\x04\x04\x02\0\x01\x12\x03\
+    \x16\x0b\x12\n\x0c\n\x05\x04\x04\x02\0\x03\x12\x03\x16\x15\x16\n\x0b\n\
+    \x04\x04\x04\x02\x01\x12\x03\x17\x04\x15\n\x0c\n\x05\x04\x04\x02\x01\x05\
+    \x12\x03\x17\x04\t\n\x0c\n\x05\x04\x04\x02\x01\x01\x12\x03\x17\n\x10\n\
+    \x0c\n\x05\x04\x04\x02\x01\x03\x12\x03\x17\x13\x14\n\x0b\n\x04\x04\x04\
+    \x02\x02\x12\x03\x18\x04\x16\n\x0c\n\x05\x04\x04\x02\x02\x05\x12\x03\x18\
+    \x04\n\n\x0c\n\x05\x04\x04\x02\x02\x01\x12\x03\x18\x0b\x11\n\x0c\n\x05\
+    \x04\x04\x02\x02\x03\x12\x03\x18\x14\x15\n\n\n\x02\x04\x05\x12\x04\x1a\0\
+    \x1c\x01\n\n\n\x03\x04\x05\x01\x12\x03\x1a\x08\x15\n\x0b\n\x04\x04\x05\
+    \x02\0\x12\x03\x1b\x04\x16\n\x0c\n\x05\x04\x05\x02\0\x05\x12\x03\x1b\x04\
+    \n\n\x0c\n\x05\x04\x05\x02\0\x01\x12\x03\x1b\x0b\x11\n\x0c\n\x05\x04\x05\
+    \x02\0\x03\x12\x03\x1b\x14\x15b\x06proto3\
 ";
 
 static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;
diff --git a/shared-lib/flowy-collaboration/src/protobuf/model/ws.rs b/shared-lib/flowy-collaboration/src/protobuf/model/ws.rs
index 0d24c128d4..b54df062bb 100644
--- a/shared-lib/flowy-collaboration/src/protobuf/model/ws.rs
+++ b/shared-lib/flowy-collaboration/src/protobuf/model/ws.rs
@@ -28,7 +28,7 @@ pub struct DocumentClientWSData {
     // message fields
     pub doc_id: ::std::string::String,
     pub ty: DocumentClientWSDataType,
-    pub data: ::std::vec::Vec<u8>,
+    pub revisions: ::protobuf::SingularPtrField<super::revision::RepeatedRevision>,
     pub id: ::std::string::String,
     // special fields
     pub unknown_fields: ::protobuf::UnknownFields,
@@ -87,30 +87,37 @@ impl DocumentClientWSData {
         self.ty = v;
     }
 
-    // bytes data = 3;
+    // .RepeatedRevision revisions = 3;
 
 
-    pub fn get_data(&self) -> &[u8] {
-        &self.data
+    pub fn get_revisions(&self) -> &super::revision::RepeatedRevision {
+        self.revisions.as_ref().unwrap_or_else(|| <super::revision::RepeatedRevision as ::protobuf::Message>::default_instance())
     }
-    pub fn clear_data(&mut self) {
-        self.data.clear();
+    pub fn clear_revisions(&mut self) {
+        self.revisions.clear();
+    }
+
+    pub fn has_revisions(&self) -> bool {
+        self.revisions.is_some()
     }
 
     // Param is passed by value, moved
-    pub fn set_data(&mut self, v: ::std::vec::Vec<u8>) {
-        self.data = v;
+    pub fn set_revisions(&mut self, v: super::revision::RepeatedRevision) {
+        self.revisions = ::protobuf::SingularPtrField::some(v);
     }
 
     // Mutable pointer to the field.
     // If field is not initialized, it is initialized with default value first.
-    pub fn mut_data(&mut self) -> &mut ::std::vec::Vec<u8> {
-        &mut self.data
+    pub fn mut_revisions(&mut self) -> &mut super::revision::RepeatedRevision {
+        if self.revisions.is_none() {
+            self.revisions.set_default();
+        }
+        self.revisions.as_mut().unwrap()
     }
 
     // Take field
-    pub fn take_data(&mut self) -> ::std::vec::Vec<u8> {
-        ::std::mem::replace(&mut self.data, ::std::vec::Vec::new())
+    pub fn take_revisions(&mut self) -> super::revision::RepeatedRevision {
+        self.revisions.take().unwrap_or_else(|| super::revision::RepeatedRevision::new())
     }
 
     // string id = 4;
@@ -142,6 +149,11 @@ impl DocumentClientWSData {
 
 impl ::protobuf::Message for DocumentClientWSData {
     fn is_initialized(&self) -> bool {
+        for v in &self.revisions {
+            if !v.is_initialized() {
+                return false;
+            }
+        };
         true
     }
 
@@ -156,7 +168,7 @@ impl ::protobuf::Message for DocumentClientWSData {
                     ::protobuf::rt::read_proto3_enum_with_unknown_fields_into(wire_type, is, &mut self.ty, 2, &mut self.unknown_fields)?
                 },
                 3 => {
-                    ::protobuf::rt::read_singular_proto3_bytes_into(wire_type, is, &mut self.data)?;
+                    ::protobuf::rt::read_singular_message_into(wire_type, is, &mut self.revisions)?;
                 },
                 4 => {
                     ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.id)?;
@@ -179,8 +191,9 @@ impl ::protobuf::Message for DocumentClientWSData {
         if self.ty != DocumentClientWSDataType::ClientPushRev {
             my_size += ::protobuf::rt::enum_size(2, self.ty);
         }
-        if !self.data.is_empty() {
-            my_size += ::protobuf::rt::bytes_size(3, &self.data);
+        if let Some(ref v) = self.revisions.as_ref() {
+            let len = v.compute_size();
+            my_size += 1 + ::protobuf::rt::compute_raw_varint32_size(len) + len;
         }
         if !self.id.is_empty() {
             my_size += ::protobuf::rt::string_size(4, &self.id);
@@ -197,8 +210,10 @@ impl ::protobuf::Message for DocumentClientWSData {
         if self.ty != DocumentClientWSDataType::ClientPushRev {
             os.write_enum(2, ::protobuf::ProtobufEnum::value(&self.ty))?;
         }
-        if !self.data.is_empty() {
-            os.write_bytes(3, &self.data)?;
+        if let Some(ref v) = self.revisions.as_ref() {
+            os.write_tag(3, ::protobuf::wire_format::WireTypeLengthDelimited)?;
+            os.write_raw_varint32(v.get_cached_size())?;
+            v.write_to_with_cached_sizes(os)?;
         }
         if !self.id.is_empty() {
             os.write_string(4, &self.id)?;
@@ -251,10 +266,10 @@ impl ::protobuf::Message for DocumentClientWSData {
                 |m: &DocumentClientWSData| { &m.ty },
                 |m: &mut DocumentClientWSData| { &mut m.ty },
             ));
-            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
-                "data",
-                |m: &DocumentClientWSData| { &m.data },
-                |m: &mut DocumentClientWSData| { &mut m.data },
+            fields.push(::protobuf::reflect::accessor::make_singular_ptr_field_accessor::<_, ::protobuf::types::ProtobufTypeMessage<super::revision::RepeatedRevision>>(
+                "revisions",
+                |m: &DocumentClientWSData| { &m.revisions },
+                |m: &mut DocumentClientWSData| { &mut m.revisions },
             ));
             fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
                 "id",
@@ -279,7 +294,7 @@ impl ::protobuf::Clear for DocumentClientWSData {
     fn clear(&mut self) {
         self.doc_id.clear();
         self.ty = DocumentClientWSDataType::ClientPushRev;
-        self.data.clear();
+        self.revisions.clear();
         self.id.clear();
         self.unknown_fields.clear();
     }
@@ -303,7 +318,6 @@ pub struct DocumentServerWSData {
     pub doc_id: ::std::string::String,
     pub ty: DocumentServerWSDataType,
     pub data: ::std::vec::Vec<u8>,
-    pub id: ::std::string::String,
     // special fields
     pub unknown_fields: ::protobuf::UnknownFields,
     pub cached_size: ::protobuf::CachedSize,
@@ -386,32 +400,6 @@ impl DocumentServerWSData {
     pub fn take_data(&mut self) -> ::std::vec::Vec<u8> {
         ::std::mem::replace(&mut self.data, ::std::vec::Vec::new())
     }
-
-    // string id = 4;
-
-
-    pub fn get_id(&self) -> &str {
-        &self.id
-    }
-    pub fn clear_id(&mut self) {
-        self.id.clear();
-    }
-
-    // Param is passed by value, moved
-    pub fn set_id(&mut self, v: ::std::string::String) {
-        self.id = v;
-    }
-
-    // Mutable pointer to the field.
-    // If field is not initialized, it is initialized with default value first.
-    pub fn mut_id(&mut self) -> &mut ::std::string::String {
-        &mut self.id
-    }
-
-    // Take field
-    pub fn take_id(&mut self) -> ::std::string::String {
-        ::std::mem::replace(&mut self.id, ::std::string::String::new())
-    }
 }
 
 impl ::protobuf::Message for DocumentServerWSData {
@@ -432,9 +420,6 @@ impl ::protobuf::Message for DocumentServerWSData {
                 3 => {
                     ::protobuf::rt::read_singular_proto3_bytes_into(wire_type, is, &mut self.data)?;
                 },
-                4 => {
-                    ::protobuf::rt::read_singular_proto3_string_into(wire_type, is, &mut self.id)?;
-                },
                 _ => {
                     ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
                 },
@@ -456,9 +441,6 @@ impl ::protobuf::Message for DocumentServerWSData {
         if !self.data.is_empty() {
             my_size += ::protobuf::rt::bytes_size(3, &self.data);
         }
-        if !self.id.is_empty() {
-            my_size += ::protobuf::rt::string_size(4, &self.id);
-        }
         my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
         self.cached_size.set(my_size);
         my_size
@@ -474,9 +456,6 @@ impl ::protobuf::Message for DocumentServerWSData {
         if !self.data.is_empty() {
             os.write_bytes(3, &self.data)?;
         }
-        if !self.id.is_empty() {
-            os.write_string(4, &self.id)?;
-        }
         os.write_unknown_fields(self.get_unknown_fields())?;
         ::std::result::Result::Ok(())
     }
@@ -530,11 +509,6 @@ impl ::protobuf::Message for DocumentServerWSData {
                 |m: &DocumentServerWSData| { &m.data },
                 |m: &mut DocumentServerWSData| { &mut m.data },
             ));
-            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
-                "id",
-                |m: &DocumentServerWSData| { &m.id },
-                |m: &mut DocumentServerWSData| { &mut m.id },
-            ));
             ::protobuf::reflect::MessageDescriptor::new_pb_name::<DocumentServerWSData>(
                 "DocumentServerWSData",
                 fields,
@@ -554,7 +528,6 @@ impl ::protobuf::Clear for DocumentServerWSData {
         self.doc_id.clear();
         self.ty = DocumentServerWSDataType::ServerAck;
         self.data.clear();
-        self.id.clear();
         self.unknown_fields.clear();
     }
 }
@@ -918,66 +891,64 @@ impl ::protobuf::reflect::ProtobufValue for DocumentServerWSDataType {
 }
 
 static file_descriptor_proto_data: &'static [u8] = b"\
-    \n\x08ws.proto\"|\n\x14DocumentClientWSData\x12\x15\n\x06doc_id\x18\x01\
-    \x20\x01(\tR\x05docId\x12)\n\x02ty\x18\x02\x20\x01(\x0e2\x19.DocumentCli\
-    entWSDataTypeR\x02ty\x12\x12\n\x04data\x18\x03\x20\x01(\x0cR\x04data\x12\
-    \x0e\n\x02id\x18\x04\x20\x01(\tR\x02id\"|\n\x14DocumentServerWSData\x12\
-    \x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12)\n\x02ty\x18\x02\x20\
-    \x01(\x0e2\x19.DocumentServerWSDataTypeR\x02ty\x12\x12\n\x04data\x18\x03\
-    \x20\x01(\x0cR\x04data\x12\x0e\n\x02id\x18\x04\x20\x01(\tR\x02id\"f\n\
-    \x0fNewDocumentUser\x12\x17\n\x07user_id\x18\x01\x20\x01(\tR\x06userId\
-    \x12\x15\n\x06doc_id\x18\x02\x20\x01(\tR\x05docId\x12#\n\rrevision_data\
-    \x18\x03\x20\x01(\x0cR\x0crevisionData*-\n\x18DocumentClientWSDataType\
-    \x12\x11\n\rClientPushRev\x10\0*`\n\x18DocumentServerWSDataType\x12\r\n\
-    \tServerAck\x10\0\x12\x11\n\rServerPushRev\x10\x01\x12\x11\n\rServerPull\
-    Rev\x10\x02\x12\x0f\n\x0bUserConnect\x10\x03J\xb4\x07\n\x06\x12\x04\0\0\
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-    \x12\x03\x03\x14\x15\n\x0b\n\x04\x04\0\x02\x01\x12\x03\x04\x04$\n\x0c\n\
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-    \x05\x01\x02\x03\x02\x12\x03\x1a\x12\x13b\x06proto3\
+    \n\x08ws.proto\x1a\x0erevision.proto\"\x99\x01\n\x14DocumentClientWSData\
+    \x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12)\n\x02ty\x18\x02\
+    \x20\x01(\x0e2\x19.DocumentClientWSDataTypeR\x02ty\x12/\n\trevisions\x18\
+    \x03\x20\x01(\x0b2\x11.RepeatedRevisionR\trevisions\x12\x0e\n\x02id\x18\
+    \x04\x20\x01(\tR\x02id\"l\n\x14DocumentServerWSData\x12\x15\n\x06doc_id\
+    \x18\x01\x20\x01(\tR\x05docId\x12)\n\x02ty\x18\x02\x20\x01(\x0e2\x19.Doc\
+    umentServerWSDataTypeR\x02ty\x12\x12\n\x04data\x18\x03\x20\x01(\x0cR\x04\
+    data\"f\n\x0fNewDocumentUser\x12\x17\n\x07user_id\x18\x01\x20\x01(\tR\
+    \x06userId\x12\x15\n\x06doc_id\x18\x02\x20\x01(\tR\x05docId\x12#\n\rrevi\
+    sion_data\x18\x03\x20\x01(\x0cR\x0crevisionData*-\n\x18DocumentClientWSD\
+    ataType\x12\x11\n\rClientPushRev\x10\0*`\n\x18DocumentServerWSDataType\
+    \x12\r\n\tServerAck\x10\0\x12\x11\n\rServerPushRev\x10\x01\x12\x11\n\rSe\
+    rverPullRev\x10\x02\x12\x0f\n\x0bUserConnect\x10\x03J\x88\x07\n\x06\x12\
+    \x04\0\0\x1b\x01\n\x08\n\x01\x0c\x12\x03\0\0\x12\n\t\n\x02\x03\0\x12\x03\
+    \x01\0\x18\n\n\n\x02\x04\0\x12\x04\x03\0\x08\x01\n\n\n\x03\x04\0\x01\x12\
+    \x03\x03\x08\x1c\n\x0b\n\x04\x04\0\x02\0\x12\x03\x04\x04\x16\n\x0c\n\x05\
+    \x04\0\x02\0\x05\x12\x03\x04\x04\n\n\x0c\n\x05\x04\0\x02\0\x01\x12\x03\
+    \x04\x0b\x11\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x04\x14\x15\n\x0b\n\x04\
+    \x04\0\x02\x01\x12\x03\x05\x04$\n\x0c\n\x05\x04\0\x02\x01\x06\x12\x03\
+    \x05\x04\x1c\n\x0c\n\x05\x04\0\x02\x01\x01\x12\x03\x05\x1d\x1f\n\x0c\n\
+    \x05\x04\0\x02\x01\x03\x12\x03\x05\"#\n\x0b\n\x04\x04\0\x02\x02\x12\x03\
+    \x06\x04#\n\x0c\n\x05\x04\0\x02\x02\x06\x12\x03\x06\x04\x14\n\x0c\n\x05\
+    \x04\0\x02\x02\x01\x12\x03\x06\x15\x1e\n\x0c\n\x05\x04\0\x02\x02\x03\x12\
+    \x03\x06!\"\n\x0b\n\x04\x04\0\x02\x03\x12\x03\x07\x04\x12\n\x0c\n\x05\
+    \x04\0\x02\x03\x05\x12\x03\x07\x04\n\n\x0c\n\x05\x04\0\x02\x03\x01\x12\
+    \x03\x07\x0b\r\n\x0c\n\x05\x04\0\x02\x03\x03\x12\x03\x07\x10\x11\n\n\n\
+    \x02\x04\x01\x12\x04\t\0\r\x01\n\n\n\x03\x04\x01\x01\x12\x03\t\x08\x1c\n\
+    \x0b\n\x04\x04\x01\x02\0\x12\x03\n\x04\x16\n\x0c\n\x05\x04\x01\x02\0\x05\
+    \x12\x03\n\x04\n\n\x0c\n\x05\x04\x01\x02\0\x01\x12\x03\n\x0b\x11\n\x0c\n\
+    \x05\x04\x01\x02\0\x03\x12\x03\n\x14\x15\n\x0b\n\x04\x04\x01\x02\x01\x12\
+    \x03\x0b\x04$\n\x0c\n\x05\x04\x01\x02\x01\x06\x12\x03\x0b\x04\x1c\n\x0c\
+    \n\x05\x04\x01\x02\x01\x01\x12\x03\x0b\x1d\x1f\n\x0c\n\x05\x04\x01\x02\
+    \x01\x03\x12\x03\x0b\"#\n\x0b\n\x04\x04\x01\x02\x02\x12\x03\x0c\x04\x13\
+    \n\x0c\n\x05\x04\x01\x02\x02\x05\x12\x03\x0c\x04\t\n\x0c\n\x05\x04\x01\
+    \x02\x02\x01\x12\x03\x0c\n\x0e\n\x0c\n\x05\x04\x01\x02\x02\x03\x12\x03\
+    \x0c\x11\x12\n\n\n\x02\x04\x02\x12\x04\x0e\0\x12\x01\n\n\n\x03\x04\x02\
+    \x01\x12\x03\x0e\x08\x17\n\x0b\n\x04\x04\x02\x02\0\x12\x03\x0f\x04\x17\n\
+    \x0c\n\x05\x04\x02\x02\0\x05\x12\x03\x0f\x04\n\n\x0c\n\x05\x04\x02\x02\0\
+    \x01\x12\x03\x0f\x0b\x12\n\x0c\n\x05\x04\x02\x02\0\x03\x12\x03\x0f\x15\
+    \x16\n\x0b\n\x04\x04\x02\x02\x01\x12\x03\x10\x04\x16\n\x0c\n\x05\x04\x02\
+    \x02\x01\x05\x12\x03\x10\x04\n\n\x0c\n\x05\x04\x02\x02\x01\x01\x12\x03\
+    \x10\x0b\x11\n\x0c\n\x05\x04\x02\x02\x01\x03\x12\x03\x10\x14\x15\n\x0b\n\
+    \x04\x04\x02\x02\x02\x12\x03\x11\x04\x1c\n\x0c\n\x05\x04\x02\x02\x02\x05\
+    \x12\x03\x11\x04\t\n\x0c\n\x05\x04\x02\x02\x02\x01\x12\x03\x11\n\x17\n\
+    \x0c\n\x05\x04\x02\x02\x02\x03\x12\x03\x11\x1a\x1b\n\n\n\x02\x05\0\x12\
+    \x04\x13\0\x15\x01\n\n\n\x03\x05\0\x01\x12\x03\x13\x05\x1d\n\x0b\n\x04\
+    \x05\0\x02\0\x12\x03\x14\x04\x16\n\x0c\n\x05\x05\0\x02\0\x01\x12\x03\x14\
+    \x04\x11\n\x0c\n\x05\x05\0\x02\0\x02\x12\x03\x14\x14\x15\n\n\n\x02\x05\
+    \x01\x12\x04\x16\0\x1b\x01\n\n\n\x03\x05\x01\x01\x12\x03\x16\x05\x1d\n\
+    \x0b\n\x04\x05\x01\x02\0\x12\x03\x17\x04\x12\n\x0c\n\x05\x05\x01\x02\0\
+    \x01\x12\x03\x17\x04\r\n\x0c\n\x05\x05\x01\x02\0\x02\x12\x03\x17\x10\x11\
+    \n\x0b\n\x04\x05\x01\x02\x01\x12\x03\x18\x04\x16\n\x0c\n\x05\x05\x01\x02\
+    \x01\x01\x12\x03\x18\x04\x11\n\x0c\n\x05\x05\x01\x02\x01\x02\x12\x03\x18\
+    \x14\x15\n\x0b\n\x04\x05\x01\x02\x02\x12\x03\x19\x04\x16\n\x0c\n\x05\x05\
+    \x01\x02\x02\x01\x12\x03\x19\x04\x11\n\x0c\n\x05\x05\x01\x02\x02\x02\x12\
+    \x03\x19\x14\x15\n\x0b\n\x04\x05\x01\x02\x03\x12\x03\x1a\x04\x14\n\x0c\n\
+    \x05\x05\x01\x02\x03\x01\x12\x03\x1a\x04\x0f\n\x0c\n\x05\x05\x01\x02\x03\
+    \x02\x12\x03\x1a\x12\x13b\x06proto3\
 ";
 
 static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;
diff --git a/shared-lib/flowy-collaboration/src/protobuf/proto/doc.proto b/shared-lib/flowy-collaboration/src/protobuf/proto/doc.proto
index d20903a5f9..ae6be50ee8 100644
--- a/shared-lib/flowy-collaboration/src/protobuf/proto/doc.proto
+++ b/shared-lib/flowy-collaboration/src/protobuf/proto/doc.proto
@@ -6,7 +6,7 @@ message CreateDocParams {
     RepeatedRevision revisions = 2;
 }
 message DocumentInfo {
-    string id = 1;
+    string doc_id = 1;
     string text = 2;
     int64 rev_id = 3;
     int64 base_rev_id = 4;
diff --git a/shared-lib/flowy-collaboration/src/protobuf/proto/ws.proto b/shared-lib/flowy-collaboration/src/protobuf/proto/ws.proto
index 5919fe2868..e638ecd504 100644
--- a/shared-lib/flowy-collaboration/src/protobuf/proto/ws.proto
+++ b/shared-lib/flowy-collaboration/src/protobuf/proto/ws.proto
@@ -1,16 +1,16 @@
 syntax = "proto3";
+import "revision.proto";
 
 message DocumentClientWSData {
     string doc_id = 1;
     DocumentClientWSDataType ty = 2;
-    bytes data = 3;
+    RepeatedRevision revisions = 3;
     string id = 4;
 }
 message DocumentServerWSData {
     string doc_id = 1;
     DocumentServerWSDataType ty = 2;
     bytes data = 3;
-    string id = 4;
 }
 message NewDocumentUser {
     string user_id = 1;
diff --git a/shared-lib/flowy-collaboration/src/sync/server.rs b/shared-lib/flowy-collaboration/src/sync/server.rs
index 3f2415a27d..98cd8cf26e 100644
--- a/shared-lib/flowy-collaboration/src/sync/server.rs
+++ b/shared-lib/flowy-collaboration/src/sync/server.rs
@@ -1,15 +1,20 @@
 use crate::{
     document::Document,
-    entities::{doc::DocumentInfo, revision::Revision},
+    entities::{
+        doc::DocumentInfo,
+        revision::{RepeatedRevision, Revision},
+        ws::DocumentServerWSDataBuilder,
+    },
     errors::{internal_error, CollaborateError, CollaborateResult},
-    sync::{RevisionSynchronizer, RevisionUser},
+    protobuf::DocumentClientWSData,
+    sync::{RevisionSynchronizer, RevisionUser, SyncResponse},
 };
 use async_stream::stream;
 use dashmap::DashMap;
 use futures::stream::StreamExt;
 use lib_infra::future::FutureResultSend;
 use lib_ot::rich_text::RichTextDelta;
-use std::{fmt::Debug, sync::Arc};
+use std::{convert::TryFrom, fmt::Debug, sync::Arc};
 use tokio::{
     sync::{mpsc, oneshot},
     task::spawn_blocking,
@@ -17,8 +22,9 @@ use tokio::{
 
 pub trait DocumentPersistence: Send + Sync + Debug {
     fn read_doc(&self, doc_id: &str) -> FutureResultSend<DocumentInfo, CollaborateError>;
-    fn create_doc(&self, revision: Revision) -> FutureResultSend<DocumentInfo, CollaborateError>;
+    fn create_doc(&self, doc_id: &str, revisions: Vec<Revision>) -> FutureResultSend<DocumentInfo, CollaborateError>;
     fn get_revisions(&self, doc_id: &str, rev_ids: Vec<i64>) -> FutureResultSend<Vec<Revision>, CollaborateError>;
+    fn get_doc_revisions(&self, doc_id: &str) -> FutureResultSend<Vec<Revision>, CollaborateError>;
 }
 
 pub struct ServerDocumentManager {
@@ -37,22 +43,43 @@ impl ServerDocumentManager {
     pub async fn apply_revisions(
         &self,
         user: Arc<dyn RevisionUser>,
-        revisions: Vec<Revision>,
+        mut client_data: DocumentClientWSData,
     ) -> Result<(), CollaborateError> {
-        if revisions.is_empty() {
-            return Ok(());
-        }
-        let revision = revisions.first().unwrap();
-        let handler = match self.get_document_handler(&revision.doc_id).await {
+        let mut pb = client_data.take_revisions();
+        let cloned_user = user.clone();
+        let ack_id = client_data.id.clone().parse::<i64>().map_err(|e| {
+            CollaborateError::internal().context(format!("Parse rev_id from {} failed. {}", &client_data.id, e))
+        })?;
+        let doc_id = client_data.doc_id;
+
+        let revisions = spawn_blocking(move || {
+            let repeated_revision = RepeatedRevision::try_from(&mut pb)?;
+            let revisions = repeated_revision.into_inner();
+            Ok::<Vec<Revision>, CollaborateError>(revisions)
+        })
+        .await
+        .map_err(internal_error)??;
+
+        let result = match self.get_document_handler(&doc_id).await {
             None => {
-                // Create the document if it doesn't exist
-                self.create_document(revision.clone()).await.map_err(internal_error)?
+                let _ = self.create_document(&doc_id, revisions).await.map_err(internal_error)?;
+                Ok(())
+            },
+            Some(handler) => {
+                let _ = handler
+                    .apply_revisions(doc_id.clone(), user, revisions)
+                    .await
+                    .map_err(internal_error)?;
+                Ok(())
             },
-            Some(handler) => handler,
         };
 
-        handler.apply_revisions(user, revisions).await.map_err(internal_error)?;
-        Ok(())
+        if result.is_ok() {
+            cloned_user.receive(SyncResponse::Ack(DocumentServerWSDataBuilder::build_ack_message(
+                &doc_id, ack_id,
+            )));
+        }
+        result
     }
 
     async fn get_document_handler(&self, doc_id: &str) -> Option<Arc<OpenDocHandle>> {
@@ -75,14 +102,18 @@ impl ServerDocumentManager {
         }
     }
 
-    async fn create_document(&self, revision: Revision) -> Result<Arc<OpenDocHandle>, CollaborateError> {
-        let doc = self.persistence.create_doc(revision).await?;
+    async fn create_document(
+        &self,
+        doc_id: &str,
+        revisions: Vec<Revision>,
+    ) -> Result<Arc<OpenDocHandle>, CollaborateError> {
+        let doc = self.persistence.create_doc(doc_id, revisions).await?;
         let handler = self.cache_document(doc).await?;
         Ok(handler)
     }
 
     async fn cache_document(&self, doc: DocumentInfo) -> Result<Arc<OpenDocHandle>, CollaborateError> {
-        let doc_id = doc.id.clone();
+        let doc_id = doc.doc_id.clone();
         let persistence = self.persistence.clone();
         let handle = spawn_blocking(|| OpenDocHandle::new(doc, persistence))
             .await
@@ -114,6 +145,7 @@ impl OpenDocHandle {
 
     async fn apply_revisions(
         &self,
+        doc_id: String,
         user: Arc<dyn RevisionUser>,
         revisions: Vec<Revision>,
     ) -> Result<(), CollaborateError> {
@@ -121,6 +153,7 @@ impl OpenDocHandle {
         let persistence = self.persistence.clone();
         self.users.insert(user.user_id(), user.clone());
         let msg = DocumentCommand::ApplyRevisions {
+            doc_id,
             user,
             revisions,
             persistence,
@@ -130,12 +163,6 @@ impl OpenDocHandle {
         Ok(())
     }
 
-    pub async fn document_json(&self) -> CollaborateResult<String> {
-        let (ret, rx) = oneshot::channel();
-        let msg = DocumentCommand::GetDocumentJson { ret };
-        self.send(msg, rx).await?
-    }
-
     async fn send<T>(&self, msg: DocumentCommand, rx: oneshot::Receiver<T>) -> CollaborateResult<T> {
         let _ = self.sender.send(msg).await.map_err(internal_error)?;
         let result = rx.await.map_err(internal_error)?;
@@ -146,14 +173,12 @@ impl OpenDocHandle {
 #[derive(Debug)]
 enum DocumentCommand {
     ApplyRevisions {
+        doc_id: String,
         user: Arc<dyn RevisionUser>,
         revisions: Vec<Revision>,
         persistence: Arc<dyn DocumentPersistence>,
         ret: oneshot::Sender<CollaborateResult<()>>,
     },
-    GetDocumentJson {
-        ret: oneshot::Sender<CollaborateResult<String>>,
-    },
 }
 
 struct DocumentCommandQueue {
@@ -166,13 +191,13 @@ impl DocumentCommandQueue {
     fn new(receiver: mpsc::Receiver<DocumentCommand>, doc: DocumentInfo) -> Result<Self, CollaborateError> {
         let delta = RichTextDelta::from_bytes(&doc.text)?;
         let synchronizer = Arc::new(RevisionSynchronizer::new(
-            &doc.id,
+            &doc.doc_id,
             doc.rev_id,
             Document::from_delta(delta),
         ));
 
         Ok(Self {
-            doc_id: doc.id,
+            doc_id: doc.doc_id,
             receiver: Some(receiver),
             synchronizer,
         })
@@ -198,24 +223,18 @@ impl DocumentCommandQueue {
     async fn handle_message(&self, msg: DocumentCommand) {
         match msg {
             DocumentCommand::ApplyRevisions {
+                doc_id,
                 user,
                 revisions,
                 persistence,
                 ret,
             } => {
                 self.synchronizer
-                    .apply_revisions(user, revisions, persistence)
+                    .apply_revisions(doc_id, user, revisions, persistence)
                     .await
                     .unwrap();
                 let _ = ret.send(Ok(()));
             },
-            DocumentCommand::GetDocumentJson { ret } => {
-                let synchronizer = self.synchronizer.clone();
-                let json = spawn_blocking(move || synchronizer.doc_json())
-                    .await
-                    .map_err(internal_error);
-                let _ = ret.send(json);
-            },
         }
     }
 }
diff --git a/shared-lib/flowy-collaboration/src/sync/synchronizer.rs b/shared-lib/flowy-collaboration/src/sync/synchronizer.rs
index fdba534d04..8199badae9 100644
--- a/shared-lib/flowy-collaboration/src/sync/synchronizer.rs
+++ b/shared-lib/flowy-collaboration/src/sync/synchronizer.rs
@@ -6,6 +6,7 @@ use crate::{
     },
     sync::DocumentPersistence,
 };
+use futures::TryFutureExt;
 use lib_ot::{core::OperationTransformable, errors::OTError, rich_text::RichTextDelta};
 use parking_lot::RwLock;
 use std::{
@@ -49,12 +50,19 @@ impl RevisionSynchronizer {
     #[tracing::instrument(level = "debug", skip(self, user, revisions, persistence), err)]
     pub async fn apply_revisions(
         &self,
+        doc_id: String,
         user: Arc<dyn RevisionUser>,
         revisions: Vec<Revision>,
         persistence: Arc<dyn DocumentPersistence>,
     ) -> Result<(), OTError> {
         if revisions.is_empty() {
-            tracing::warn!("Receive empty revisions");
+            // Return all the revisions to client
+            let revisions = persistence
+                .get_doc_revisions(&doc_id)
+                .map_err(|e| OTError::internal().context(e))
+                .await?;
+            let data = DocumentServerWSDataBuilder::build_push_message(&doc_id, revisions);
+            user.receive(SyncResponse::Push(data));
             return Ok(());
         }
 
@@ -83,8 +91,7 @@ impl RevisionSynchronizer {
                         start: server_rev_id,
                         end: first_revision.rev_id,
                     };
-                    let msg =
-                        DocumentServerWSDataBuilder::build_pull_message(&self.doc_id, range, first_revision.rev_id);
+                    let msg = DocumentServerWSDataBuilder::build_pull_message(&self.doc_id, range);
                     user.receive(SyncResponse::Pull(msg));
                 }
             },
@@ -96,7 +103,6 @@ impl RevisionSynchronizer {
                 // The client document is outdated. Transform the client revision delta and then
                 // send the prime delta to the client. Client should compose the this prime
                 // delta.
-                let id = first_revision.rev_id.to_string();
                 let from_rev_id = first_revision.rev_id;
                 let to_rev_id = server_base_rev_id;
                 let rev_ids: Vec<i64> = (from_rev_id..=to_rev_id).collect();
@@ -111,15 +117,10 @@ impl RevisionSynchronizer {
                     },
                 };
 
-                let data = DocumentServerWSDataBuilder::build_push_message(&self.doc_id, revisions, &id);
+                let data = DocumentServerWSDataBuilder::build_push_message(&self.doc_id, revisions);
                 user.receive(SyncResponse::Push(data));
             },
         }
-
-        user.receive(SyncResponse::Ack(DocumentServerWSDataBuilder::build_ack_message(
-            &first_revision.doc_id,
-            &first_revision.rev_id.to_string(),
-        )));
         Ok(())
     }
 
diff --git a/shared-lib/lib-ws/src/connect.rs b/shared-lib/lib-ws/src/connect.rs
index b3fb181d37..5623d0d3f0 100644
--- a/shared-lib/lib-ws/src/connect.rs
+++ b/shared-lib/lib-ws/src/connect.rs
@@ -137,7 +137,7 @@ impl WSStream {
 }
 
 impl fmt::Debug for WSStream {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("WsStream").finish() }
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("WSStream").finish() }
 }
 
 impl Future for WSStream {