diff --git a/backend/tests/document_test/edit_script.rs b/backend/tests/document_test/edit_script.rs
index 83003b6097..cf900f97f0 100644
--- a/backend/tests/document_test/edit_script.rs
+++ b/backend/tests/document_test/edit_script.rs
@@ -2,7 +2,7 @@
 #![cfg_attr(rustfmt, rustfmt::skip)]
 use std::convert::TryInto;
 use actix_web::web::Data;
-use flowy_document::services::doc::edit::ClientDocumentEditor;
+use flowy_document::core::edit::ClientDocumentEditor;
 use flowy_test::{helper::ViewTest, FlowySDKTest};
 use flowy_user::services::user::UserSession;
 use futures_util::{stream, stream::StreamExt};
diff --git a/backend/tests/util/helper.rs b/backend/tests/util/helper.rs
index 66c609c433..ee1b92b96a 100644
--- a/backend/tests/util/helper.rs
+++ b/backend/tests/util/helper.rs
@@ -6,15 +6,14 @@ use backend::{
 use backend_service::{
     configuration::{get_client_server_configuration, ClientServerConfiguration},
     errors::ServerError,
-    user_request::*,
-    workspace_request::*,
+    http_request::*,
 };
 use flowy_collaboration::{
     document::default::initial_delta_string,
     entities::doc::{CreateDocParams, DocumentId, DocumentInfo},
 };
 use flowy_core_data_model::entities::prelude::*;
-use flowy_document::services::server::{create_doc_request, read_doc_request};
+use flowy_document::server::{create_doc_request, read_doc_request};
 use flowy_user_data_model::entities::*;
 use lib_infra::uuid_string;
 use sqlx::{Connection, Executor, PgConnection, PgPool};
diff --git a/frontend/rust-lib/flowy-core/src/core/core_context.rs b/frontend/rust-lib/flowy-core/src/context.rs
similarity index 100%
rename from frontend/rust-lib/flowy-core/src/core/core_context.rs
rename to frontend/rust-lib/flowy-core/src/context.rs
diff --git a/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/mod.rs b/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/mod.rs
deleted file mode 100644
index e14803561f..0000000000
--- a/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-mod workspace_task;
-
-pub use workspace_task::*;
diff --git a/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/workspace_task.rs b/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/workspace_task.rs
deleted file mode 100644
index ab42d92455..0000000000
--- a/frontend/rust-lib/flowy-core/src/core/aggregate_tasks/workspace_task.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-use crate::{
-    core::CoreContext,
-    errors::FlowyError,
-    notify::{send_dart_notification, WorkspaceNotification},
-    services::workspace::sql::{WorkspaceTable, WorkspaceTableSql},
-};
-use flowy_core_data_model::entities::workspace::WorkspaceId;
-use lib_dispatch::prelude::Unit;
-use std::sync::Arc;
-
-#[tracing::instrument(level = "debug", skip(core), err)]
-pub fn read_workspaces_on_server(
-    core: Unit<Arc<CoreContext>>,
-    user_id: String,
-    params: WorkspaceId,
-) -> Result<(), FlowyError> {
-    let (token, server) = (core.user.token()?, core.server.clone());
-    let app_ctrl = core.app_controller.clone();
-    let view_ctrl = core.view_controller.clone();
-    let conn = core.database.db_connection()?;
-
-    tokio::spawn(async move {
-        // Opti: handle the error and retry?
-        let workspaces = server.read_workspace(&token, params).await?;
-        let _ = (&*conn).immediate_transaction::<_, FlowyError, _>(|| {
-            tracing::debug!("Save {} workspace", workspaces.len());
-            for workspace in &workspaces.items {
-                let m_workspace = workspace.clone();
-                let apps = m_workspace.apps.clone().into_inner();
-                let workspace_table = WorkspaceTable::new(m_workspace, &user_id);
-
-                let _ = WorkspaceTableSql::create_workspace(workspace_table, &*conn)?;
-                tracing::debug!("Save {} apps", apps.len());
-                for app in apps {
-                    let views = app.belongings.clone().into_inner();
-                    match app_ctrl.save_app(app, &*conn) {
-                        Ok(_) => {},
-                        Err(e) => log::error!("create app failed: {:?}", e),
-                    }
-
-                    tracing::debug!("Save {} views", views.len());
-                    for view in views {
-                        match view_ctrl.save_view(view, &*conn) {
-                            Ok(_) => {},
-                            Err(e) => log::error!("create view failed: {:?}", e),
-                        }
-                    }
-                }
-            }
-            Ok(())
-        })?;
-
-        send_dart_notification(&token, WorkspaceNotification::WorkspaceListUpdated)
-            .payload(workspaces)
-            .send();
-        Result::<(), FlowyError>::Ok(())
-    });
-
-    Ok(())
-}
diff --git a/frontend/rust-lib/flowy-core/src/core/event_handler.rs b/frontend/rust-lib/flowy-core/src/core/event_handler.rs
deleted file mode 100644
index f3e9ac3faa..0000000000
--- a/frontend/rust-lib/flowy-core/src/core/event_handler.rs
+++ /dev/null
@@ -1,56 +0,0 @@
-use crate::{
-    core::{aggregate_tasks::read_workspaces_on_server, CoreContext},
-    errors::FlowyError,
-    services::{get_current_workspace, read_local_workspace_apps},
-};
-use flowy_core_data_model::entities::{
-    view::View,
-    workspace::{CurrentWorkspaceSetting, QueryWorkspaceRequest, RepeatedWorkspace, WorkspaceId},
-};
-use lib_dispatch::prelude::{data_result, Data, DataResult, Unit};
-use std::{convert::TryInto, sync::Arc};
-
-#[tracing::instrument(skip(data, core), err)]
-pub(crate) async fn read_workspaces_handler(
-    data: Data<QueryWorkspaceRequest>,
-    core: Unit<Arc<CoreContext>>,
-) -> DataResult<RepeatedWorkspace, FlowyError> {
-    let params: WorkspaceId = data.into_inner().try_into()?;
-    let user_id = core.user.user_id()?;
-    let conn = &*core.database.db_connection()?;
-    let workspace_controller = core.workspace_controller.clone();
-
-    let trash_controller = core.trash_controller.clone();
-    let workspaces = conn.immediate_transaction::<_, FlowyError, _>(|| {
-        let mut workspaces = workspace_controller.read_local_workspaces(params.workspace_id.clone(), &user_id, conn)?;
-        for workspace in workspaces.iter_mut() {
-            let apps = read_local_workspace_apps(&workspace.id, trash_controller.clone(), conn)?.into_inner();
-            workspace.apps.items = apps;
-        }
-        Ok(workspaces)
-    })?;
-
-    let _ = read_workspaces_on_server(core, user_id, params);
-
-    data_result(workspaces)
-}
-
-#[tracing::instrument(skip(core), err)]
-pub async fn read_cur_workspace_handler(
-    core: Unit<Arc<CoreContext>>,
-) -> DataResult<CurrentWorkspaceSetting, FlowyError> {
-    let workspace_id = get_current_workspace()?;
-    let user_id = core.user.user_id()?;
-    let params = WorkspaceId {
-        workspace_id: Some(workspace_id.clone()),
-    };
-    let conn = &*core.database.db_connection()?;
-    let workspace = core
-        .workspace_controller
-        .read_local_workspace(workspace_id, &user_id, conn)?;
-
-    let latest_view: Option<View> = core.view_controller.latest_visit_view().unwrap_or(None);
-    let setting = CurrentWorkspaceSetting { workspace, latest_view };
-    let _ = read_workspaces_on_server(core, user_id, params);
-    data_result(setting)
-}
diff --git a/frontend/rust-lib/flowy-core/src/core/mod.rs b/frontend/rust-lib/flowy-core/src/core/mod.rs
deleted file mode 100644
index 626ce77015..0000000000
--- a/frontend/rust-lib/flowy-core/src/core/mod.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-mod aggregate_tasks;
-mod core_context;
-
-pub mod event_handler;
-pub use core_context::*;
diff --git a/frontend/rust-lib/flowy-core/src/event_handler.rs b/frontend/rust-lib/flowy-core/src/event_handler.rs
new file mode 100644
index 0000000000..13d32013d3
--- /dev/null
+++ b/frontend/rust-lib/flowy-core/src/event_handler.rs
@@ -0,0 +1,112 @@
+use crate::{
+    context::CoreContext,
+    errors::FlowyError,
+    notify::{send_dart_notification, WorkspaceNotification},
+    services::{
+        get_current_workspace,
+        read_local_workspace_apps,
+        workspace::sql::{WorkspaceTable, WorkspaceTableSql},
+    },
+};
+use flowy_core_data_model::entities::{
+    view::View,
+    workspace::{CurrentWorkspaceSetting, QueryWorkspaceRequest, RepeatedWorkspace, WorkspaceId},
+};
+use lib_dispatch::prelude::{data_result, Data, DataResult, Unit};
+use std::{convert::TryInto, sync::Arc};
+
+#[tracing::instrument(skip(data, core), err)]
+pub(crate) async fn read_workspaces_handler(
+    data: Data<QueryWorkspaceRequest>,
+    core: Unit<Arc<CoreContext>>,
+) -> DataResult<RepeatedWorkspace, FlowyError> {
+    let params: WorkspaceId = data.into_inner().try_into()?;
+    let user_id = core.user.user_id()?;
+    let conn = &*core.database.db_connection()?;
+    let workspace_controller = core.workspace_controller.clone();
+
+    let trash_controller = core.trash_controller.clone();
+    let workspaces = conn.immediate_transaction::<_, FlowyError, _>(|| {
+        let mut workspaces = workspace_controller.read_local_workspaces(params.workspace_id.clone(), &user_id, conn)?;
+        for workspace in workspaces.iter_mut() {
+            let apps = read_local_workspace_apps(&workspace.id, trash_controller.clone(), conn)?.into_inner();
+            workspace.apps.items = apps;
+        }
+        Ok(workspaces)
+    })?;
+
+    let _ = read_workspaces_on_server(core, user_id, params);
+
+    data_result(workspaces)
+}
+
+#[tracing::instrument(skip(core), err)]
+pub async fn read_cur_workspace_handler(
+    core: Unit<Arc<CoreContext>>,
+) -> DataResult<CurrentWorkspaceSetting, FlowyError> {
+    let workspace_id = get_current_workspace()?;
+    let user_id = core.user.user_id()?;
+    let params = WorkspaceId {
+        workspace_id: Some(workspace_id.clone()),
+    };
+    let conn = &*core.database.db_connection()?;
+    let workspace = core
+        .workspace_controller
+        .read_local_workspace(workspace_id, &user_id, conn)?;
+
+    let latest_view: Option<View> = core.view_controller.latest_visit_view().unwrap_or(None);
+    let setting = CurrentWorkspaceSetting { workspace, latest_view };
+    let _ = read_workspaces_on_server(core, user_id, params);
+    data_result(setting)
+}
+
+#[tracing::instrument(level = "debug", skip(core), err)]
+fn read_workspaces_on_server(
+    core: Unit<Arc<CoreContext>>,
+    user_id: String,
+    params: WorkspaceId,
+) -> Result<(), FlowyError> {
+    let (token, server) = (core.user.token()?, core.server.clone());
+    let app_ctrl = core.app_controller.clone();
+    let view_ctrl = core.view_controller.clone();
+    let conn = core.database.db_connection()?;
+
+    tokio::spawn(async move {
+        // Opti: handle the error and retry?
+        let workspaces = server.read_workspace(&token, params).await?;
+        let _ = (&*conn).immediate_transaction::<_, FlowyError, _>(|| {
+            tracing::debug!("Save {} workspace", workspaces.len());
+            for workspace in &workspaces.items {
+                let m_workspace = workspace.clone();
+                let apps = m_workspace.apps.clone().into_inner();
+                let workspace_table = WorkspaceTable::new(m_workspace, &user_id);
+
+                let _ = WorkspaceTableSql::create_workspace(workspace_table, &*conn)?;
+                tracing::debug!("Save {} apps", apps.len());
+                for app in apps {
+                    let views = app.belongings.clone().into_inner();
+                    match app_ctrl.save_app(app, &*conn) {
+                        Ok(_) => {},
+                        Err(e) => log::error!("create app failed: {:?}", e),
+                    }
+
+                    tracing::debug!("Save {} views", views.len());
+                    for view in views {
+                        match view_ctrl.save_view(view, &*conn) {
+                            Ok(_) => {},
+                            Err(e) => log::error!("create view failed: {:?}", e),
+                        }
+                    }
+                }
+            }
+            Ok(())
+        })?;
+
+        send_dart_notification(&token, WorkspaceNotification::WorkspaceListUpdated)
+            .payload(workspaces)
+            .send();
+        Result::<(), FlowyError>::Ok(())
+    });
+
+    Ok(())
+}
diff --git a/frontend/rust-lib/flowy-core/src/lib.rs b/frontend/rust-lib/flowy-core/src/lib.rs
index 51cb51acf7..37f2a306b1 100644
--- a/frontend/rust-lib/flowy-core/src/lib.rs
+++ b/frontend/rust-lib/flowy-core/src/lib.rs
@@ -10,8 +10,8 @@ mod macros;
 #[macro_use]
 extern crate flowy_database;
 
-pub mod core;
-
+pub mod context;
+pub mod event_handler;
 mod notify;
 pub mod protobuf;
 mod util;
@@ -19,7 +19,7 @@ mod util;
 pub mod prelude {
     pub use flowy_core_data_model::entities::{app::*, trash::*, view::*, workspace::*};
 
-    pub use crate::{core::*, errors::*, module::*};
+    pub use crate::{errors::*, module::*};
 }
 
 pub mod errors {
diff --git a/frontend/rust-lib/flowy-core/src/module.rs b/frontend/rust-lib/flowy-core/src/module.rs
index 1d5f1a0615..e99925f3fa 100644
--- a/frontend/rust-lib/flowy-core/src/module.rs
+++ b/frontend/rust-lib/flowy-core/src/module.rs
@@ -5,11 +5,11 @@ use flowy_database::DBConnection;
 use flowy_document::context::DocumentContext;
 use lib_dispatch::prelude::*;
 use lib_sqlite::ConnectionPool;
-
 use crate::{
-    core::{event_handler::*, CoreContext},
+    context::CoreContext,
     errors::FlowyError,
     event::WorkspaceEvent,
+    event_handler::*,
     services::{
         app::event_handler::*,
         server::construct_workspace_server,
diff --git a/frontend/rust-lib/flowy-core/src/services/server/server_api.rs b/frontend/rust-lib/flowy-core/src/services/server/server_api.rs
index da6c1d158a..2b6b5eabf7 100644
--- a/frontend/rust-lib/flowy-core/src/services/server/server_api.rs
+++ b/frontend/rust-lib/flowy-core/src/services/server/server_api.rs
@@ -9,7 +9,7 @@ use crate::{
     notify::{send_dart_notification, WorkspaceNotification},
     services::server::WorkspaceServerAPI,
 };
-use backend_service::{configuration::ClientServerConfiguration, middleware::*, workspace_request::*};
+use backend_service::{configuration::ClientServerConfiguration, http_request::*, middleware::*};
 use lib_infra::future::FutureResult;
 
 pub struct WorkspaceHttpServer {
diff --git a/frontend/rust-lib/flowy-document/src/context.rs b/frontend/rust-lib/flowy-document/src/context.rs
index 19d22e3365..7a30967bbc 100644
--- a/frontend/rust-lib/flowy-document/src/context.rs
+++ b/frontend/rust-lib/flowy-document/src/context.rs
@@ -1,13 +1,11 @@
-use crate::{
-    errors::FlowyError,
-    services::{
-        controller::DocumentController,
-        doc::{DocumentWSReceivers, DocumentWebSocket},
-        server::construct_doc_server,
-    },
-};
+use crate::errors::FlowyError;
 use backend_service::configuration::ClientServerConfiguration;
 
+use crate::{
+    controller::DocumentController,
+    core::{DocumentWSReceivers, DocumentWebSocket},
+    server::construct_doc_server,
+};
 use flowy_database::ConnectionPool;
 use std::sync::Arc;
 
diff --git a/frontend/rust-lib/flowy-document/src/services/controller.rs b/frontend/rust-lib/flowy-document/src/controller.rs
similarity index 96%
rename from frontend/rust-lib/flowy-document/src/services/controller.rs
rename to frontend/rust-lib/flowy-document/src/controller.rs
index d38c2e35af..dca7408098 100644
--- a/frontend/rust-lib/flowy-document/src/services/controller.rs
+++ b/frontend/rust-lib/flowy-document/src/controller.rs
@@ -1,16 +1,14 @@
 use crate::{
     context::DocumentUser,
-    errors::FlowyError,
-    services::{
-        doc::{
-            edit::ClientDocumentEditor,
-            revision::{RevisionCache, RevisionManager, RevisionServer},
-            DocumentWSReceivers,
-            DocumentWebSocket,
-            WSStateReceiver,
-        },
-        server::Server,
+    core::{
+        edit::ClientDocumentEditor,
+        revision::{RevisionCache, RevisionManager, RevisionServer},
+        DocumentWSReceivers,
+        DocumentWebSocket,
+        WSStateReceiver,
     },
+    errors::FlowyError,
+    server::Server,
 };
 use bytes::Bytes;
 use dashmap::DashMap;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/edit/editor.rs b/frontend/rust-lib/flowy-document/src/core/edit/editor.rs
similarity index 99%
rename from frontend/rust-lib/flowy-document/src/services/doc/edit/editor.rs
rename to frontend/rust-lib/flowy-document/src/core/edit/editor.rs
index c586315eb3..ef16e1c47c 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/edit/editor.rs
+++ b/frontend/rust-lib/flowy-document/src/core/edit/editor.rs
@@ -1,10 +1,10 @@
 use crate::{
     context::DocumentUser,
-    errors::FlowyError,
-    services::doc::{
+    core::{
         web_socket::{make_document_ws_manager, DocumentWebSocketManager},
         *,
     },
+    errors::FlowyError,
 };
 use bytes::Bytes;
 use flowy_collaboration::{
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/edit/mod.rs b/frontend/rust-lib/flowy-document/src/core/edit/mod.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/doc/edit/mod.rs
rename to frontend/rust-lib/flowy-document/src/core/edit/mod.rs
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/edit/queue.rs b/frontend/rust-lib/flowy-document/src/core/edit/queue.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/doc/edit/queue.rs
rename to frontend/rust-lib/flowy-document/src/core/edit/queue.rs
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/mod.rs b/frontend/rust-lib/flowy-document/src/core/mod.rs
similarity index 76%
rename from frontend/rust-lib/flowy-document/src/services/doc/mod.rs
rename to frontend/rust-lib/flowy-document/src/core/mod.rs
index a582ca006f..d2e604915b 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/mod.rs
+++ b/frontend/rust-lib/flowy-document/src/core/mod.rs
@@ -1,7 +1,7 @@
 pub mod edit;
 pub mod revision;
 mod web_socket;
-pub use crate::services::ws_receivers::*;
+pub use crate::ws_receivers::*;
 pub use edit::*;
 pub use revision::*;
 
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/cache.rs b/frontend/rust-lib/flowy-document/src/core/revision/cache.rs
similarity index 90%
rename from frontend/rust-lib/flowy-document/src/services/doc/revision/cache/cache.rs
rename to frontend/rust-lib/flowy-document/src/core/revision/cache.rs
index 5f8a1e7193..1e4a3827a1 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/cache.rs
+++ b/frontend/rust-lib/flowy-document/src/core/revision/cache.rs
@@ -1,33 +1,32 @@
 use crate::{
-    errors::FlowyError,
-    services::doc::revision::cache::{
-        disk::{Persistence, RevisionDiskCache},
+    core::revision::{
+        disk::{DocumentRevisionDiskCache, RevisionChangeset, RevisionTableState, SQLitePersistence},
         memory::{RevisionMemoryCache, RevisionMemoryCacheDelegate},
     },
-    sql_tables::{RevisionChangeset, RevisionTableState},
+    errors::FlowyError,
 };
-use std::borrow::Cow;
-
 use flowy_collaboration::entities::revision::{Revision, RevisionRange, RevisionState};
 use flowy_database::ConnectionPool;
 use flowy_error::{internal_error, FlowyResult};
-
-use std::sync::{
-    atomic::{AtomicI64, Ordering::SeqCst},
-    Arc,
+use std::{
+    borrow::Cow,
+    sync::{
+        atomic::{AtomicI64, Ordering::SeqCst},
+        Arc,
+    },
 };
 use tokio::task::spawn_blocking;
 
 pub struct RevisionCache {
     doc_id: String,
-    disk_cache: Arc<dyn RevisionDiskCache<Error = FlowyError>>,
+    disk_cache: Arc<dyn DocumentRevisionDiskCache<Error = FlowyError>>,
     memory_cache: Arc<RevisionMemoryCache>,
     latest_rev_id: AtomicI64,
 }
 
 impl RevisionCache {
     pub fn new(user_id: &str, doc_id: &str, pool: Arc<ConnectionPool>) -> RevisionCache {
-        let disk_cache = Arc::new(Persistence::new(user_id, pool));
+        let disk_cache = Arc::new(SQLitePersistence::new(user_id, pool));
         let memory_cache = Arc::new(RevisionMemoryCache::new(doc_id, Arc::new(disk_cache.clone())));
         let doc_id = doc_id.to_owned();
         Self {
@@ -121,7 +120,7 @@ impl RevisionCache {
             .collect::<Vec<_>>();
 
         let _ = self.memory_cache.reset_with_revisions(&revision_records).await?;
-        let _ = self.disk_cache.reset_with_revisions(doc_id, revision_records)?;
+        let _ = self.disk_cache.reset_document(doc_id, revision_records)?;
         Ok(())
     }
 
@@ -131,7 +130,7 @@ impl RevisionCache {
     }
 }
 
-impl RevisionMemoryCacheDelegate for Arc<Persistence> {
+impl RevisionMemoryCacheDelegate for Arc<SQLitePersistence> {
     fn checkpoint_tick(&self, mut records: Vec<RevisionRecord>) -> FlowyResult<()> {
         let conn = &*self.pool.get().map_err(internal_error)?;
         records.retain(|record| record.write_to_disk);
diff --git a/frontend/rust-lib/flowy-document/src/core/revision/disk/mod.rs b/frontend/rust-lib/flowy-document/src/core/revision/disk/mod.rs
new file mode 100644
index 0000000000..6c95aaed7f
--- /dev/null
+++ b/frontend/rust-lib/flowy-document/src/core/revision/disk/mod.rs
@@ -0,0 +1,42 @@
+mod sql_impl;
+use crate::core::revision::RevisionRecord;
+use diesel::SqliteConnection;
+use flowy_collaboration::entities::revision::RevisionRange;
+pub use sql_impl::*;
+
+use flowy_error::FlowyResult;
+use std::fmt::Debug;
+
+pub trait DocumentRevisionDiskCache: Sync + Send {
+    type Error: Debug;
+    fn write_revision_records(
+        &self,
+        revisions: Vec<RevisionRecord>,
+        conn: &SqliteConnection,
+    ) -> Result<(), Self::Error>;
+
+    // Read all the records if the rev_ids is None
+    fn read_revision_records(
+        &self,
+        doc_id: &str,
+        rev_ids: Option<Vec<i64>>,
+    ) -> Result<Vec<RevisionRecord>, Self::Error>;
+
+    fn read_revision_records_with_range(
+        &self,
+        doc_id: &str,
+        range: &RevisionRange,
+    ) -> Result<Vec<RevisionRecord>, Self::Error>;
+
+    fn update_revision_record(&self, changesets: Vec<RevisionChangeset>) -> FlowyResult<()>;
+
+    // Delete all the records if the rev_ids is None
+    fn delete_revision_records(
+        &self,
+        doc_id: &str,
+        rev_ids: Option<Vec<i64>>,
+        conn: &SqliteConnection,
+    ) -> Result<(), Self::Error>;
+
+    fn reset_document(&self, doc_id: &str, revision_records: Vec<RevisionRecord>) -> Result<(), Self::Error>;
+}
diff --git a/frontend/rust-lib/flowy-document/src/core/revision/disk/sql_impl.rs b/frontend/rust-lib/flowy-document/src/core/revision/disk/sql_impl.rs
new file mode 100644
index 0000000000..587c9cec85
--- /dev/null
+++ b/frontend/rust-lib/flowy-document/src/core/revision/disk/sql_impl.rs
@@ -0,0 +1,306 @@
+use crate::core::revision::{disk::DocumentRevisionDiskCache, RevisionRecord};
+use bytes::Bytes;
+use diesel::{sql_types::Integer, update, SqliteConnection};
+use flowy_collaboration::{
+    entities::revision::{RevId, RevType, Revision, RevisionRange, RevisionState},
+    util::md5,
+};
+use flowy_database::{
+    insert_or_ignore_into,
+    prelude::*,
+    schema::{rev_table, rev_table::dsl},
+    ConnectionPool,
+};
+use flowy_error::{internal_error, FlowyError, FlowyResult};
+use std::sync::Arc;
+
+pub struct SQLitePersistence {
+    user_id: String,
+    pub(crate) pool: Arc<ConnectionPool>,
+}
+
+impl DocumentRevisionDiskCache for SQLitePersistence {
+    type Error = FlowyError;
+
+    fn write_revision_records(
+        &self,
+        revisions: Vec<RevisionRecord>,
+        conn: &SqliteConnection,
+    ) -> Result<(), Self::Error> {
+        let _ = RevisionTableSql::create(revisions, conn)?;
+        Ok(())
+    }
+
+    fn read_revision_records(
+        &self,
+        doc_id: &str,
+        rev_ids: Option<Vec<i64>>,
+    ) -> Result<Vec<RevisionRecord>, Self::Error> {
+        let conn = self.pool.get().map_err(internal_error)?;
+        let records = RevisionTableSql::read(&self.user_id, doc_id, rev_ids, &*conn)?;
+        Ok(records)
+    }
+
+    fn read_revision_records_with_range(
+        &self,
+        doc_id: &str,
+        range: &RevisionRange,
+    ) -> Result<Vec<RevisionRecord>, Self::Error> {
+        let conn = &*self.pool.get().map_err(internal_error)?;
+        let revisions = RevisionTableSql::read_with_range(&self.user_id, doc_id, range.clone(), conn)?;
+        Ok(revisions)
+    }
+
+    fn update_revision_record(&self, changesets: Vec<RevisionChangeset>) -> FlowyResult<()> {
+        let conn = &*self.pool.get().map_err(internal_error)?;
+        let _ = conn.immediate_transaction::<_, FlowyError, _>(|| {
+            for changeset in changesets {
+                let _ = RevisionTableSql::update(changeset, conn)?;
+            }
+            Ok(())
+        })?;
+        Ok(())
+    }
+
+    fn delete_revision_records(
+        &self,
+        doc_id: &str,
+        rev_ids: Option<Vec<i64>>,
+        conn: &SqliteConnection,
+    ) -> Result<(), Self::Error> {
+        let _ = RevisionTableSql::delete(doc_id, rev_ids, conn)?;
+        Ok(())
+    }
+
+    fn reset_document(&self, doc_id: &str, revision_records: Vec<RevisionRecord>) -> Result<(), Self::Error> {
+        let conn = self.pool.get().map_err(internal_error)?;
+        conn.immediate_transaction::<_, FlowyError, _>(|| {
+            let _ = self.delete_revision_records(doc_id, None, &*conn)?;
+            let _ = self.write_revision_records(revision_records, &*conn)?;
+            Ok(())
+        })
+    }
+}
+
+impl SQLitePersistence {
+    pub(crate) fn new(user_id: &str, pool: Arc<ConnectionPool>) -> Self {
+        Self {
+            user_id: user_id.to_owned(),
+            pool,
+        }
+    }
+}
+
+pub struct RevisionTableSql {}
+
+impl RevisionTableSql {
+    pub(crate) fn create(revision_records: Vec<RevisionRecord>, conn: &SqliteConnection) -> Result<(), FlowyError> {
+        // Batch insert: https://diesel.rs/guides/all-about-inserts.html
+        let records = revision_records
+            .into_iter()
+            .map(|record| {
+                let rev_state: RevisionTableState = record.state.into();
+                (
+                    dsl::doc_id.eq(record.revision.doc_id),
+                    dsl::base_rev_id.eq(record.revision.base_rev_id),
+                    dsl::rev_id.eq(record.revision.rev_id),
+                    dsl::data.eq(record.revision.delta_data),
+                    dsl::state.eq(rev_state),
+                    dsl::ty.eq(RevTableType::Local),
+                )
+            })
+            .collect::<Vec<_>>();
+
+        let _ = insert_or_ignore_into(dsl::rev_table).values(&records).execute(conn)?;
+        Ok(())
+    }
+
+    pub(crate) fn update(changeset: RevisionChangeset, conn: &SqliteConnection) -> Result<(), FlowyError> {
+        let filter = dsl::rev_table
+            .filter(dsl::rev_id.eq(changeset.rev_id.as_ref()))
+            .filter(dsl::doc_id.eq(changeset.doc_id));
+        let _ = update(filter).set(dsl::state.eq(changeset.state)).execute(conn)?;
+        tracing::debug!("Set {} to {:?}", changeset.rev_id, changeset.state);
+        Ok(())
+    }
+
+    pub(crate) fn read(
+        user_id: &str,
+        doc_id: &str,
+        rev_ids: Option<Vec<i64>>,
+        conn: &SqliteConnection,
+    ) -> Result<Vec<RevisionRecord>, FlowyError> {
+        let mut sql = dsl::rev_table.filter(dsl::doc_id.eq(doc_id)).into_boxed();
+        if let Some(rev_ids) = rev_ids {
+            sql = sql.filter(dsl::rev_id.eq_any(rev_ids));
+        }
+        let rows = sql.order(dsl::rev_id.asc()).load::<RevisionTable>(conn)?;
+        let records = rows
+            .into_iter()
+            .map(|row| mk_revision_record_from_table(user_id, row))
+            .collect::<Vec<_>>();
+
+        Ok(records)
+    }
+
+    pub(crate) fn read_with_range(
+        user_id: &str,
+        doc_id: &str,
+        range: RevisionRange,
+        conn: &SqliteConnection,
+    ) -> Result<Vec<RevisionRecord>, FlowyError> {
+        let rev_tables = dsl::rev_table
+            .filter(dsl::rev_id.ge(range.start))
+            .filter(dsl::rev_id.le(range.end))
+            .filter(dsl::doc_id.eq(doc_id))
+            .order(dsl::rev_id.asc())
+            .load::<RevisionTable>(conn)?;
+
+        let revisions = rev_tables
+            .into_iter()
+            .map(|table| mk_revision_record_from_table(user_id, table))
+            .collect::<Vec<_>>();
+        Ok(revisions)
+    }
+
+    pub(crate) fn delete(doc_id: &str, rev_ids: Option<Vec<i64>>, conn: &SqliteConnection) -> Result<(), FlowyError> {
+        let mut sql = dsl::rev_table.filter(dsl::doc_id.eq(doc_id)).into_boxed();
+        if let Some(rev_ids) = rev_ids {
+            sql = sql.filter(dsl::rev_id.eq_any(rev_ids));
+        }
+
+        let affected_row = sql.execute(conn)?;
+        tracing::debug!("Delete {} revision rows", affected_row);
+        Ok(())
+    }
+}
+
+#[derive(PartialEq, Clone, Debug, Queryable, Identifiable, Insertable, Associations)]
+#[table_name = "rev_table"]
+pub(crate) struct RevisionTable {
+    id: i32,
+    pub(crate) doc_id: String,
+    pub(crate) base_rev_id: i64,
+    pub(crate) rev_id: i64,
+    pub(crate) data: Vec<u8>,
+    pub(crate) state: RevisionTableState,
+    pub(crate) ty: RevTableType, // Deprecated
+}
+
+#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash, FromSqlRow, AsExpression)]
+#[repr(i32)]
+#[sql_type = "Integer"]
+pub enum RevisionTableState {
+    Local = 0,
+    Ack   = 1,
+}
+
+impl std::default::Default for RevisionTableState {
+    fn default() -> Self { RevisionTableState::Local }
+}
+
+impl std::convert::From<i32> for RevisionTableState {
+    fn from(value: i32) -> Self {
+        match value {
+            0 => RevisionTableState::Local,
+            1 => RevisionTableState::Ack,
+            o => {
+                log::error!("Unsupported rev state {}, fallback to RevState::Local", o);
+                RevisionTableState::Local
+            },
+        }
+    }
+}
+
+impl RevisionTableState {
+    pub fn value(&self) -> i32 { *self as i32 }
+}
+impl_sql_integer_expression!(RevisionTableState);
+
+impl std::convert::From<RevisionTableState> for RevisionState {
+    fn from(s: RevisionTableState) -> Self {
+        match s {
+            RevisionTableState::Local => RevisionState::Local,
+            RevisionTableState::Ack => RevisionState::Ack,
+        }
+    }
+}
+
+impl std::convert::From<RevisionState> for RevisionTableState {
+    fn from(s: RevisionState) -> Self {
+        match s {
+            RevisionState::Local => RevisionTableState::Local,
+            RevisionState::Ack => RevisionTableState::Ack,
+        }
+    }
+}
+
+pub(crate) fn mk_revision_record_from_table(user_id: &str, table: RevisionTable) -> RevisionRecord {
+    let md5 = md5(&table.data);
+    let revision = Revision::new(
+        &table.doc_id,
+        table.base_rev_id,
+        table.rev_id,
+        Bytes::from(table.data),
+        &user_id,
+        md5,
+    );
+    RevisionRecord {
+        revision,
+        state: table.state.into(),
+        write_to_disk: false,
+    }
+}
+
+#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash, FromSqlRow, AsExpression)]
+#[repr(i32)]
+#[sql_type = "Integer"]
+pub enum RevTableType {
+    Local  = 0,
+    Remote = 1,
+}
+
+impl std::default::Default for RevTableType {
+    fn default() -> Self { RevTableType::Local }
+}
+
+impl std::convert::From<i32> for RevTableType {
+    fn from(value: i32) -> Self {
+        match value {
+            0 => RevTableType::Local,
+            1 => RevTableType::Remote,
+            o => {
+                log::error!("Unsupported rev type {}, fallback to RevTableType::Local", o);
+                RevTableType::Local
+            },
+        }
+    }
+}
+impl RevTableType {
+    pub fn value(&self) -> i32 { *self as i32 }
+}
+impl_sql_integer_expression!(RevTableType);
+
+impl std::convert::From<RevType> for RevTableType {
+    fn from(ty: RevType) -> Self {
+        match ty {
+            RevType::DeprecatedLocal => RevTableType::Local,
+            RevType::DeprecatedRemote => RevTableType::Remote,
+        }
+    }
+}
+
+impl std::convert::From<RevTableType> for RevType {
+    fn from(ty: RevTableType) -> Self {
+        match ty {
+            RevTableType::Local => RevType::DeprecatedLocal,
+            RevTableType::Remote => RevType::DeprecatedRemote,
+        }
+    }
+}
+
+pub struct RevisionChangeset {
+    pub(crate) doc_id: String,
+    pub(crate) rev_id: RevId,
+    pub(crate) state: RevisionTableState,
+}
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs b/frontend/rust-lib/flowy-document/src/core/revision/manager.rs
similarity index 99%
rename from frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs
rename to frontend/rust-lib/flowy-document/src/core/revision/manager.rs
index 270d0abacf..5f096e423b 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/manager.rs
+++ b/frontend/rust-lib/flowy-document/src/core/revision/manager.rs
@@ -1,6 +1,6 @@
 use crate::{
+    core::{revision::RevisionCache, RevisionRecord},
     errors::FlowyError,
-    services::doc::{revision::RevisionCache, RevisionRecord},
 };
 use bytes::Bytes;
 use dashmap::DashMap;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/memory.rs b/frontend/rust-lib/flowy-document/src/core/revision/memory.rs
similarity index 99%
rename from frontend/rust-lib/flowy-document/src/services/doc/revision/cache/memory.rs
rename to frontend/rust-lib/flowy-document/src/core/revision/memory.rs
index 6ef86db121..35fc8f9bbf 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/memory.rs
+++ b/frontend/rust-lib/flowy-document/src/core/revision/memory.rs
@@ -1,4 +1,4 @@
-use crate::services::doc::RevisionRecord;
+use crate::core::RevisionRecord;
 use dashmap::DashMap;
 use flowy_collaboration::entities::revision::RevisionRange;
 use flowy_error::{FlowyError, FlowyResult};
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/mod.rs b/frontend/rust-lib/flowy-document/src/core/revision/mod.rs
similarity index 74%
rename from frontend/rust-lib/flowy-document/src/services/doc/revision/mod.rs
rename to frontend/rust-lib/flowy-document/src/core/revision/mod.rs
index e101635339..78286f4c9e 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/mod.rs
+++ b/frontend/rust-lib/flowy-document/src/core/revision/mod.rs
@@ -1,5 +1,7 @@
-mod cache;
 mod manager;
+mod cache;
+mod disk;
+mod memory;
 
 pub use cache::*;
 pub use manager::*;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs b/frontend/rust-lib/flowy-document/src/core/web_socket/http_ws_impl.rs
similarity index 98%
rename from frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs
rename to frontend/rust-lib/flowy-document/src/core/web_socket/http_ws_impl.rs
index 8604585aaf..cd5febd2cf 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/http_ws_impl.rs
+++ b/frontend/rust-lib/flowy-document/src/core/web_socket/http_ws_impl.rs
@@ -1,5 +1,5 @@
-use crate::services::{
-    doc::{web_socket::web_socket::DocumentWebSocketManager, SYNC_INTERVAL_IN_MILLIS},
+use crate::{
+    core::{web_socket::web_socket::DocumentWebSocketManager, SYNC_INTERVAL_IN_MILLIS},
     ws_receivers::{DocumentWSReceiver, DocumentWebSocket},
 };
 use async_stream::stream;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/local_ws_impl.rs b/frontend/rust-lib/flowy-document/src/core/web_socket/local_ws_impl.rs
similarity index 85%
rename from frontend/rust-lib/flowy-document/src/services/doc/web_socket/local_ws_impl.rs
rename to frontend/rust-lib/flowy-document/src/core/web_socket/local_ws_impl.rs
index 0e25b9d9e1..e3be436cbd 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/local_ws_impl.rs
+++ b/frontend/rust-lib/flowy-document/src/core/web_socket/local_ws_impl.rs
@@ -1,4 +1,4 @@
-use crate::services::doc::{web_socket::DocumentWebSocketManager, DocumentWSReceiver};
+use crate::core::{web_socket::DocumentWebSocketManager, DocumentWSReceiver};
 use flowy_collaboration::entities::ws::DocumentServerWSData;
 use lib_ws::WSConnectState;
 use std::sync::Arc;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/mod.rs b/frontend/rust-lib/flowy-document/src/core/web_socket/mod.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/doc/web_socket/mod.rs
rename to frontend/rust-lib/flowy-document/src/core/web_socket/mod.rs
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs b/frontend/rust-lib/flowy-document/src/core/web_socket/web_socket.rs
similarity index 99%
rename from frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs
rename to frontend/rust-lib/flowy-document/src/core/web_socket/web_socket.rs
index 54dde7b901..67d1590926 100644
--- a/frontend/rust-lib/flowy-document/src/services/doc/web_socket/web_socket.rs
+++ b/frontend/rust-lib/flowy-document/src/core/web_socket/web_socket.rs
@@ -1,4 +1,4 @@
-use crate::services::doc::{
+use crate::core::{
     web_socket::{DocumentWSSinkDataProvider, DocumentWSSteamConsumer, HttpWebSocketManager},
     DocumentMD5,
     DocumentWSReceiver,
@@ -18,7 +18,7 @@ use flowy_collaboration::{
 use flowy_error::{internal_error, FlowyError, FlowyResult};
 use lib_infra::future::FutureResult;
 
-use crate::services::doc::web_socket::local_ws_impl::LocalWebSocketManager;
+use crate::core::web_socket::local_ws_impl::LocalWebSocketManager;
 use flowy_collaboration::entities::ws::DocumentServerWSDataType;
 use lib_ot::rich_text::RichTextDelta;
 use lib_ws::WSConnectState;
diff --git a/frontend/rust-lib/flowy-document/src/lib.rs b/frontend/rust-lib/flowy-document/src/lib.rs
index da57a5a290..4079b04145 100644
--- a/frontend/rust-lib/flowy-document/src/lib.rs
+++ b/frontend/rust-lib/flowy-document/src/lib.rs
@@ -1,8 +1,10 @@
 pub mod context;
+pub(crate) mod controller;
+pub mod core;
 mod notify;
 pub mod protobuf;
-pub mod services;
-mod sql_tables;
+pub mod server;
+mod ws_receivers;
 
 #[macro_use]
 extern crate flowy_database;
diff --git a/frontend/rust-lib/flowy-document/src/services/server/middleware.rs b/frontend/rust-lib/flowy-document/src/server/middleware.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/server/middleware.rs
rename to frontend/rust-lib/flowy-document/src/server/middleware.rs
diff --git a/frontend/rust-lib/flowy-document/src/services/server/mod.rs b/frontend/rust-lib/flowy-document/src/server/mod.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/server/mod.rs
rename to frontend/rust-lib/flowy-document/src/server/mod.rs
diff --git a/frontend/rust-lib/flowy-document/src/services/server/server_api.rs b/frontend/rust-lib/flowy-document/src/server/server_api.rs
similarity index 96%
rename from frontend/rust-lib/flowy-document/src/services/server/server_api.rs
rename to frontend/rust-lib/flowy-document/src/server/server_api.rs
index 923b5c26ca..7273f96aaf 100644
--- a/frontend/rust-lib/flowy-document/src/services/server/server_api.rs
+++ b/frontend/rust-lib/flowy-document/src/server/server_api.rs
@@ -1,7 +1,8 @@
-use crate::{errors::FlowyError, services::server::DocumentServerAPI};
+use crate::errors::FlowyError;
 use backend_service::{configuration::*, request::HttpRequestBuilder};
 use flowy_collaboration::entities::doc::{CreateDocParams, DocumentId, DocumentInfo, ResetDocumentParams};
 use lib_infra::future::FutureResult;
+use crate::server::DocumentServerAPI;
 
 pub struct DocServer {
     config: ClientServerConfiguration,
diff --git a/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs b/frontend/rust-lib/flowy-document/src/server/server_api_mock.rs
similarity index 92%
rename from frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs
rename to frontend/rust-lib/flowy-document/src/server/server_api_mock.rs
index 67872601b2..941a2a8e6d 100644
--- a/frontend/rust-lib/flowy-document/src/services/server/server_api_mock.rs
+++ b/frontend/rust-lib/flowy-document/src/server/server_api_mock.rs
@@ -4,7 +4,8 @@ use flowy_collaboration::{
 };
 use lib_infra::future::FutureResult;
 
-use crate::{errors::FlowyError, services::server::DocumentServerAPI};
+use crate::errors::FlowyError;
+use crate::server::DocumentServerAPI;
 
 pub struct DocServerMock {}
 
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/disk.rs b/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/disk.rs
deleted file mode 100644
index d7c09897d1..0000000000
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/disk.rs
+++ /dev/null
@@ -1,123 +0,0 @@
-use crate::services::doc::revision::RevisionRecord;
-
-use crate::sql_tables::{RevisionChangeset, RevisionTableSql};
-use diesel::SqliteConnection;
-use flowy_collaboration::entities::revision::RevisionRange;
-use flowy_database::ConnectionPool;
-use flowy_error::{internal_error, FlowyError, FlowyResult};
-use std::{fmt::Debug, sync::Arc};
-
-pub trait RevisionDiskCache: Sync + Send {
-    type Error: Debug;
-    fn write_revision_records(
-        &self,
-        revisions: Vec<RevisionRecord>,
-        conn: &SqliteConnection,
-    ) -> Result<(), Self::Error>;
-
-    // Read all the records if the rev_ids is None
-    fn read_revision_records(
-        &self,
-        doc_id: &str,
-        rev_ids: Option<Vec<i64>>,
-    ) -> Result<Vec<RevisionRecord>, Self::Error>;
-
-    fn read_revision_records_with_range(
-        &self,
-        doc_id: &str,
-        range: &RevisionRange,
-    ) -> Result<Vec<RevisionRecord>, Self::Error>;
-
-    fn update_revision_record(&self, changesets: Vec<RevisionChangeset>) -> FlowyResult<()>;
-
-    // Delete all the records if the rev_ids is None
-    fn delete_revision_records(
-        &self,
-        doc_id: &str,
-        rev_ids: Option<Vec<i64>>,
-        conn: &SqliteConnection,
-    ) -> Result<(), Self::Error>;
-
-    fn reset_with_revisions(&self, doc_id: &str, revision_records: Vec<RevisionRecord>) -> Result<(), Self::Error>;
-
-    fn db_pool(&self) -> Arc<ConnectionPool>;
-}
-
-pub(crate) struct Persistence {
-    user_id: String,
-    pub(crate) pool: Arc<ConnectionPool>,
-}
-
-impl RevisionDiskCache for Persistence {
-    type Error = FlowyError;
-
-    fn write_revision_records(
-        &self,
-        revisions: Vec<RevisionRecord>,
-        conn: &SqliteConnection,
-    ) -> Result<(), Self::Error> {
-        let _ = RevisionTableSql::create(revisions, conn)?;
-        Ok(())
-    }
-
-    fn read_revision_records(
-        &self,
-        doc_id: &str,
-        rev_ids: Option<Vec<i64>>,
-    ) -> Result<Vec<RevisionRecord>, Self::Error> {
-        let conn = self.pool.get().map_err(internal_error)?;
-        let records = RevisionTableSql::read(&self.user_id, doc_id, rev_ids, &*conn)?;
-        Ok(records)
-    }
-
-    fn read_revision_records_with_range(
-        &self,
-        doc_id: &str,
-        range: &RevisionRange,
-    ) -> Result<Vec<RevisionRecord>, Self::Error> {
-        let conn = &*self.pool.get().map_err(internal_error)?;
-        let revisions = RevisionTableSql::read_with_range(&self.user_id, doc_id, range.clone(), conn)?;
-        Ok(revisions)
-    }
-
-    fn update_revision_record(&self, changesets: Vec<RevisionChangeset>) -> FlowyResult<()> {
-        let conn = &*self.pool.get().map_err(internal_error)?;
-        let _ = conn.immediate_transaction::<_, FlowyError, _>(|| {
-            for changeset in changesets {
-                let _ = RevisionTableSql::update(changeset, conn)?;
-            }
-            Ok(())
-        })?;
-        Ok(())
-    }
-
-    fn delete_revision_records(
-        &self,
-        doc_id: &str,
-        rev_ids: Option<Vec<i64>>,
-        conn: &SqliteConnection,
-    ) -> Result<(), Self::Error> {
-        let _ = RevisionTableSql::delete(doc_id, rev_ids, conn)?;
-        Ok(())
-    }
-
-    fn reset_with_revisions(&self, doc_id: &str, revision_records: Vec<RevisionRecord>) -> Result<(), Self::Error> {
-        let conn = self.db_pool().get().map_err(internal_error)?;
-        conn.immediate_transaction::<_, FlowyError, _>(|| {
-            let _ = self.delete_revision_records(doc_id, None, &*conn)?;
-            let _ = self.write_revision_records(revision_records, &*conn)?;
-            Ok(())
-        })
-    }
-
-    fn db_pool(&self) -> Arc<ConnectionPool> { self.pool.clone() }
-}
-
-impl Persistence {
-    pub(crate) fn new(user_id: &str, pool: Arc<ConnectionPool>) -> Self {
-        Self {
-            user_id: user_id.to_owned(),
-            pool,
-        }
-    }
-}
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/mod.rs b/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/mod.rs
deleted file mode 100644
index 431c0af4c7..0000000000
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/mod.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-#![allow(clippy::module_inception)]
-mod cache;
-mod disk;
-mod memory;
-
-pub use cache::*;
diff --git a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/sync.rs b/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/sync.rs
deleted file mode 100644
index b9f454e9f5..0000000000
--- a/frontend/rust-lib/flowy-document/src/services/doc/revision/cache/sync.rs
+++ /dev/null
@@ -1,71 +0,0 @@
-use crate::services::doc::revision::RevisionRecord;
-use dashmap::DashMap;
-use flowy_error::{FlowyError, FlowyResult};
-use lib_ot::errors::OTError;
-use std::{collections::VecDeque, sync::Arc};
-use tokio::sync::RwLock;
-
-pub struct RevisionSyncSeq {
-    revs_map: Arc<DashMap<i64, RevisionRecord>>,
-    local_revs: Arc<RwLock<VecDeque<i64>>>,
-}
-
-impl std::default::Default for RevisionSyncSeq {
-    fn default() -> Self {
-        let local_revs = Arc::new(RwLock::new(VecDeque::new()));
-        RevisionSyncSeq {
-            revs_map: Arc::new(DashMap::new()),
-            local_revs,
-        }
-    }
-}
-
-impl RevisionSyncSeq {
-    pub fn new() -> Self { RevisionSyncSeq::default() }
-
-    pub async fn add_revision(&self, record: RevisionRecord) -> Result<(), OTError> {
-        // The last revision's rev_id must be greater than the new one.
-        if let Some(rev_id) = self.local_revs.read().await.back() {
-            if *rev_id >= record.revision.rev_id {
-                return Err(OTError::revision_id_conflict()
-                    .context(format!("The new revision's id must be greater than {}", rev_id)));
-            }
-        }
-        self.local_revs.write().await.push_back(record.revision.rev_id);
-        self.revs_map.insert(record.revision.rev_id, record);
-        Ok(())
-    }
-
-    pub async fn ack_revision(&self, rev_id: &i64) -> FlowyResult<()> {
-        if let Some(pop_rev_id) = self.next_sync_rev_id().await {
-            if &pop_rev_id != rev_id {
-                let desc = format!(
-                    "The ack rev_id:{} is not equal to the current rev_id:{}",
-                    rev_id, pop_rev_id
-                );
-                // tracing::error!("{}", desc);
-                return Err(FlowyError::internal().context(desc));
-            }
-
-            tracing::debug!("pop revision {}", pop_rev_id);
-            self.revs_map.remove(&pop_rev_id);
-            let _ = self.local_revs.write().await.pop_front();
-        }
-        Ok(())
-    }
-
-    pub async fn next_sync_revision(&self) -> Option<(i64, RevisionRecord)> {
-        match self.local_revs.read().await.front() {
-            None => None,
-            Some(rev_id) => self.revs_map.get(rev_id).map(|r| (*r.key(), r.value().clone())),
-        }
-    }
-
-    pub async fn next_sync_rev_id(&self) -> Option<i64> { self.local_revs.read().await.front().copied() }
-}
-
-#[cfg(feature = "flowy_unit_test")]
-impl RevisionSyncSeq {
-    pub fn revs_map(&self) -> Arc<DashMap<i64, RevisionRecord>> { self.revs_map.clone() }
-    pub fn pending_revs(&self) -> Arc<RwLock<VecDeque<i64>>> { self.local_revs.clone() }
-}
diff --git a/frontend/rust-lib/flowy-document/src/services/mod.rs b/frontend/rust-lib/flowy-document/src/services/mod.rs
deleted file mode 100644
index fdffae6ee3..0000000000
--- a/frontend/rust-lib/flowy-document/src/services/mod.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-pub(crate) mod controller;
-pub mod doc;
-pub mod server;
-mod ws_receivers;
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_sql.rs b/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_sql.rs
deleted file mode 100644
index f434c42273..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_sql.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use crate::{
-    errors::{internal_error, DocError},
-    sql_tables::doc::{DocTable, DocTableChangeset},
-};
-use flowy_database::{
-    prelude::*,
-    schema::{doc_table, doc_table::dsl},
-    ConnectionPool,
-    SqliteConnection,
-};
-use std::sync::Arc;
-
-pub struct DocTableSql {}
-
-impl DocTableSql {
-    pub(crate) fn create_doc_table(&self, doc_table: DocTable, conn: &SqliteConnection) -> Result<(), DocError> {
-        let _ = diesel::insert_into(doc_table::table).values(doc_table).execute(conn)?;
-        Ok(())
-    }
-
-    pub(crate) fn update_doc_table(
-        &self,
-        changeset: DocTableChangeset,
-        conn: &SqliteConnection,
-    ) -> Result<(), DocError> {
-        diesel_update_table!(doc_table, changeset, conn);
-        Ok(())
-    }
-
-    pub(crate) fn read_doc_table(&self, doc_id: &str, pool: Arc<ConnectionPool>) -> Result<DocTable, DocError> {
-        let conn = &*pool.get().map_err(internal_error)?;
-        let doc_table = dsl::doc_table
-            .filter(doc_table::id.eq(doc_id))
-            .first::<DocTable>(conn)?;
-
-        Ok(doc_table)
-    }
-
-    #[allow(dead_code)]
-    pub(crate) fn delete_doc(&self, doc_id: &str, conn: &SqliteConnection) -> Result<DocTable, DocError> {
-        let doc_table = dsl::doc_table
-            .filter(doc_table::id.eq(doc_id))
-            .first::<DocTable>(conn)?;
-        diesel_delete_table!(doc_table, doc_id, conn);
-        Ok(doc_table)
-    }
-}
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_table.rs b/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_table.rs
deleted file mode 100644
index 74d3cb2283..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/doc/doc_table.rs
+++ /dev/null
@@ -1,52 +0,0 @@
-use crate::entities::doc::Doc;
-use flowy_database::schema::doc_table;
-
-#[derive(PartialEq, Clone, Debug, Queryable, Identifiable, Insertable, Associations)]
-#[table_name = "doc_table"]
-pub(crate) struct DocTable {
-    pub(crate) id: String,
-    pub(crate) data: String,
-    pub(crate) rev_id: i64,
-    pub(crate) base_rev_id: i64,
-}
-
-impl DocTable {
-    pub fn new(doc: Doc) -> Self {
-        Self {
-            id: doc.id,
-            data: doc.data,
-            rev_id: doc.rev_id.into(),
-            base_rev_id: doc.base_rev_id.into(),
-        }
-    }
-}
-
-#[derive(AsChangeset, Identifiable, Default, Debug)]
-#[table_name = "doc_table"]
-pub(crate) struct DocTableChangeset {
-    pub id: String,
-    pub data: String,
-    pub rev_id: i64,
-}
-
-impl std::convert::Into<Doc> for DocTable {
-    fn into(self) -> Doc {
-        Doc {
-            id: self.id,
-            data: self.data,
-            rev_id: self.rev_id.into(),
-            base_rev_id: self.base_rev_id.into(),
-        }
-    }
-}
-
-impl std::convert::From<Doc> for DocTable {
-    fn from(doc: Doc) -> Self {
-        Self {
-            id: doc.id,
-            data: doc.data,
-            rev_id: doc.rev_id.into(),
-            base_rev_id: doc.base_rev_id.into(),
-        }
-    }
-}
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/doc/mod.rs b/frontend/rust-lib/flowy-document/src/sql_tables/doc/mod.rs
deleted file mode 100644
index 1d96022349..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/doc/mod.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-mod rev_sql;
-mod rev_table;
-
-pub(crate) use rev_sql::*;
-pub(crate) use rev_table::*;
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_sql.rs b/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_sql.rs
deleted file mode 100644
index e077e225e0..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_sql.rs
+++ /dev/null
@@ -1,98 +0,0 @@
-use crate::{
-    errors::FlowyError,
-    services::doc::revision::RevisionRecord,
-    sql_tables::{
-        doc::RevisionTable,
-        mk_revision_record_from_table,
-        RevTableType,
-        RevisionChangeset,
-        RevisionTableState,
-    },
-};
-use diesel::update;
-use flowy_collaboration::entities::revision::RevisionRange;
-use flowy_database::{insert_or_ignore_into, prelude::*, schema::rev_table::dsl, SqliteConnection};
-
-pub struct RevisionTableSql {}
-
-impl RevisionTableSql {
-    pub(crate) fn create(revision_records: Vec<RevisionRecord>, conn: &SqliteConnection) -> Result<(), FlowyError> {
-        // Batch insert: https://diesel.rs/guides/all-about-inserts.html
-        let records = revision_records
-            .into_iter()
-            .map(|record| {
-                let rev_state: RevisionTableState = record.state.into();
-                (
-                    dsl::doc_id.eq(record.revision.doc_id),
-                    dsl::base_rev_id.eq(record.revision.base_rev_id),
-                    dsl::rev_id.eq(record.revision.rev_id),
-                    dsl::data.eq(record.revision.delta_data),
-                    dsl::state.eq(rev_state),
-                    dsl::ty.eq(RevTableType::Local),
-                )
-            })
-            .collect::<Vec<_>>();
-
-        let _ = insert_or_ignore_into(dsl::rev_table).values(&records).execute(conn)?;
-        Ok(())
-    }
-
-    pub(crate) fn update(changeset: RevisionChangeset, conn: &SqliteConnection) -> Result<(), FlowyError> {
-        let filter = dsl::rev_table
-            .filter(dsl::rev_id.eq(changeset.rev_id.as_ref()))
-            .filter(dsl::doc_id.eq(changeset.doc_id));
-        let _ = update(filter).set(dsl::state.eq(changeset.state)).execute(conn)?;
-        tracing::debug!("Set {} to {:?}", changeset.rev_id, changeset.state);
-        Ok(())
-    }
-
-    pub(crate) fn read(
-        user_id: &str,
-        doc_id: &str,
-        rev_ids: Option<Vec<i64>>,
-        conn: &SqliteConnection,
-    ) -> Result<Vec<RevisionRecord>, FlowyError> {
-        let mut sql = dsl::rev_table.filter(dsl::doc_id.eq(doc_id)).into_boxed();
-        if let Some(rev_ids) = rev_ids {
-            sql = sql.filter(dsl::rev_id.eq_any(rev_ids));
-        }
-        let rows = sql.order(dsl::rev_id.asc()).load::<RevisionTable>(conn)?;
-        let records = rows
-            .into_iter()
-            .map(|row| mk_revision_record_from_table(user_id, row))
-            .collect::<Vec<_>>();
-
-        Ok(records)
-    }
-
-    pub(crate) fn read_with_range(
-        user_id: &str,
-        doc_id: &str,
-        range: RevisionRange,
-        conn: &SqliteConnection,
-    ) -> Result<Vec<RevisionRecord>, FlowyError> {
-        let rev_tables = dsl::rev_table
-            .filter(dsl::rev_id.ge(range.start))
-            .filter(dsl::rev_id.le(range.end))
-            .filter(dsl::doc_id.eq(doc_id))
-            .order(dsl::rev_id.asc())
-            .load::<RevisionTable>(conn)?;
-
-        let revisions = rev_tables
-            .into_iter()
-            .map(|table| mk_revision_record_from_table(user_id, table))
-            .collect::<Vec<_>>();
-        Ok(revisions)
-    }
-
-    pub(crate) fn delete(doc_id: &str, rev_ids: Option<Vec<i64>>, conn: &SqliteConnection) -> Result<(), FlowyError> {
-        let mut sql = dsl::rev_table.filter(dsl::doc_id.eq(doc_id)).into_boxed();
-        if let Some(rev_ids) = rev_ids {
-            sql = sql.filter(dsl::rev_id.eq_any(rev_ids));
-        }
-
-        let affected_row = sql.execute(conn)?;
-        tracing::debug!("Delete {} revision rows", affected_row);
-        Ok(())
-    }
-}
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_table.rs b/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_table.rs
deleted file mode 100644
index 34a0143d63..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/doc/rev_table.rs
+++ /dev/null
@@ -1,138 +0,0 @@
-use crate::services::doc::revision::RevisionRecord;
-use bytes::Bytes;
-use diesel::sql_types::Integer;
-use flowy_collaboration::{
-    entities::revision::{RevId, RevType, Revision, RevisionState},
-    util::md5,
-};
-use flowy_database::schema::rev_table;
-
-#[derive(PartialEq, Clone, Debug, Queryable, Identifiable, Insertable, Associations)]
-#[table_name = "rev_table"]
-pub(crate) struct RevisionTable {
-    id: i32,
-    pub(crate) doc_id: String,
-    pub(crate) base_rev_id: i64,
-    pub(crate) rev_id: i64,
-    pub(crate) data: Vec<u8>,
-    pub(crate) state: RevisionTableState,
-    pub(crate) ty: RevTableType, // Deprecated
-}
-
-#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash, FromSqlRow, AsExpression)]
-#[repr(i32)]
-#[sql_type = "Integer"]
-pub enum RevisionTableState {
-    Local = 0,
-    Ack   = 1,
-}
-
-impl std::default::Default for RevisionTableState {
-    fn default() -> Self { RevisionTableState::Local }
-}
-
-impl std::convert::From<i32> for RevisionTableState {
-    fn from(value: i32) -> Self {
-        match value {
-            0 => RevisionTableState::Local,
-            1 => RevisionTableState::Ack,
-            o => {
-                log::error!("Unsupported rev state {}, fallback to RevState::Local", o);
-                RevisionTableState::Local
-            },
-        }
-    }
-}
-
-impl RevisionTableState {
-    pub fn value(&self) -> i32 { *self as i32 }
-}
-impl_sql_integer_expression!(RevisionTableState);
-
-impl std::convert::From<RevisionTableState> for RevisionState {
-    fn from(s: RevisionTableState) -> Self {
-        match s {
-            RevisionTableState::Local => RevisionState::Local,
-            RevisionTableState::Ack => RevisionState::Ack,
-        }
-    }
-}
-
-impl std::convert::From<RevisionState> for RevisionTableState {
-    fn from(s: RevisionState) -> Self {
-        match s {
-            RevisionState::Local => RevisionTableState::Local,
-            RevisionState::Ack => RevisionTableState::Ack,
-        }
-    }
-}
-
-pub(crate) fn mk_revision_record_from_table(user_id: &str, table: RevisionTable) -> RevisionRecord {
-    let md5 = md5(&table.data);
-    let revision = Revision::new(
-        &table.doc_id,
-        table.base_rev_id,
-        table.rev_id,
-        Bytes::from(table.data),
-        &user_id,
-        md5,
-    );
-    RevisionRecord {
-        revision,
-        state: table.state.into(),
-        write_to_disk: false,
-    }
-}
-
-#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash, FromSqlRow, AsExpression)]
-#[repr(i32)]
-#[sql_type = "Integer"]
-pub enum RevTableType {
-    Local  = 0,
-    Remote = 1,
-}
-
-impl std::default::Default for RevTableType {
-    fn default() -> Self { RevTableType::Local }
-}
-
-impl std::convert::From<i32> for RevTableType {
-    fn from(value: i32) -> Self {
-        match value {
-            0 => RevTableType::Local,
-            1 => RevTableType::Remote,
-            o => {
-                log::error!("Unsupported rev type {}, fallback to RevTableType::Local", o);
-                RevTableType::Local
-            },
-        }
-    }
-}
-impl RevTableType {
-    pub fn value(&self) -> i32 { *self as i32 }
-}
-impl_sql_integer_expression!(RevTableType);
-
-impl std::convert::From<RevType> for RevTableType {
-    fn from(ty: RevType) -> Self {
-        match ty {
-            RevType::DeprecatedLocal => RevTableType::Local,
-            RevType::DeprecatedRemote => RevTableType::Remote,
-        }
-    }
-}
-
-impl std::convert::From<RevTableType> for RevType {
-    fn from(ty: RevTableType) -> Self {
-        match ty {
-            RevTableType::Local => RevType::DeprecatedLocal,
-            RevTableType::Remote => RevType::DeprecatedRemote,
-        }
-    }
-}
-
-pub struct RevisionChangeset {
-    pub(crate) doc_id: String,
-    pub(crate) rev_id: RevId,
-    pub(crate) state: RevisionTableState,
-}
diff --git a/frontend/rust-lib/flowy-document/src/sql_tables/mod.rs b/frontend/rust-lib/flowy-document/src/sql_tables/mod.rs
deleted file mode 100644
index 0bcdb06e6e..0000000000
--- a/frontend/rust-lib/flowy-document/src/sql_tables/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-pub(crate) mod doc;
-
-pub(crate) use doc::*;
diff --git a/frontend/rust-lib/flowy-document/src/services/ws_receivers.rs b/frontend/rust-lib/flowy-document/src/ws_receivers.rs
similarity index 100%
rename from frontend/rust-lib/flowy-document/src/services/ws_receivers.rs
rename to frontend/rust-lib/flowy-document/src/ws_receivers.rs
diff --git a/frontend/rust-lib/flowy-sdk/src/deps_resolve/document_deps.rs b/frontend/rust-lib/flowy-sdk/src/deps_resolve/document_deps.rs
index ee1a7fa244..74ccb222d4 100644
--- a/frontend/rust-lib/flowy-sdk/src/deps_resolve/document_deps.rs
+++ b/frontend/rust-lib/flowy-sdk/src/deps_resolve/document_deps.rs
@@ -3,8 +3,8 @@ use flowy_collaboration::entities::ws::DocumentClientWSData;
 use flowy_database::ConnectionPool;
 use flowy_document::{
     context::DocumentUser,
+    core::{DocumentWSReceivers, DocumentWebSocket, WSStateReceiver},
     errors::{internal_error, FlowyError},
-    services::doc::{DocumentWSReceivers, DocumentWebSocket, WSStateReceiver},
 };
 use flowy_net::services::ws::FlowyWSConnect;
 use flowy_user::services::user::UserSession;
diff --git a/frontend/rust-lib/flowy-sdk/src/lib.rs b/frontend/rust-lib/flowy-sdk/src/lib.rs
index 8a7e176a7d..bca2760b16 100644
--- a/frontend/rust-lib/flowy-sdk/src/lib.rs
+++ b/frontend/rust-lib/flowy-sdk/src/lib.rs
@@ -2,7 +2,7 @@ mod deps_resolve;
 pub mod module;
 use crate::deps_resolve::{DocumentDepsResolver, WorkspaceDepsResolver};
 use backend_service::configuration::ClientServerConfiguration;
-use flowy_core::{errors::FlowyError, module::init_core, prelude::CoreContext};
+use flowy_core::{context::CoreContext, errors::FlowyError, module::init_core};
 use flowy_document::context::DocumentContext;
 use flowy_net::{
     entities::NetworkType,
diff --git a/frontend/rust-lib/flowy-sdk/src/module.rs b/frontend/rust-lib/flowy-sdk/src/module.rs
index 0175d59e2a..af6a7ce455 100644
--- a/frontend/rust-lib/flowy-sdk/src/module.rs
+++ b/frontend/rust-lib/flowy-sdk/src/module.rs
@@ -1,5 +1,4 @@
-use flowy_core::prelude::CoreContext;
-
+use flowy_core::context::CoreContext;
 use flowy_net::services::ws::FlowyWSConnect;
 use flowy_user::services::user::UserSession;
 use lib_dispatch::prelude::Module;
diff --git a/frontend/rust-lib/flowy-test/src/doc_script.rs b/frontend/rust-lib/flowy-test/src/doc_script.rs
index bf3243e294..4111b9eac6 100644
--- a/frontend/rust-lib/flowy-test/src/doc_script.rs
+++ b/frontend/rust-lib/flowy-test/src/doc_script.rs
@@ -1,6 +1,6 @@
 use crate::{helper::ViewTest, FlowySDKTest};
 use flowy_collaboration::entities::revision::RevisionState;
-use flowy_document::services::doc::{edit::ClientDocumentEditor, SYNC_INTERVAL_IN_MILLIS};
+use flowy_document::core::{edit::ClientDocumentEditor, SYNC_INTERVAL_IN_MILLIS};
 use lib_ot::{core::Interval, rich_text::RichTextDelta};
 use std::sync::Arc;
 use tokio::time::{sleep, Duration};
diff --git a/frontend/rust-lib/flowy-user/src/services/server/server_api.rs b/frontend/rust-lib/flowy-user/src/services/server/server_api.rs
index 6fc29af1bb..5161849b37 100644
--- a/frontend/rust-lib/flowy-user/src/services/server/server_api.rs
+++ b/frontend/rust-lib/flowy-user/src/services/server/server_api.rs
@@ -3,7 +3,7 @@ use crate::{
     errors::FlowyError,
     services::server::UserServerAPI,
 };
-use backend_service::{configuration::*, user_request::*};
+use backend_service::{configuration::*, http_request::*};
 use lib_infra::future::FutureResult;
 
 pub struct UserHttpServer {
diff --git a/shared-lib/backend-service/src/workspace_request.rs b/shared-lib/backend-service/src/http_request.rs
similarity index 77%
rename from shared-lib/backend-service/src/workspace_request.rs
rename to shared-lib/backend-service/src/http_request.rs
index 2249ec4d26..015bd358bb 100644
--- a/shared-lib/backend-service/src/workspace_request.rs
+++ b/shared-lib/backend-service/src/http_request.rs
@@ -1,10 +1,57 @@
 use crate::{configuration::HEADER_TOKEN, errors::ServerError, request::HttpRequestBuilder};
 use flowy_core_data_model::entities::prelude::*;
+use flowy_user_data_model::entities::prelude::*;
 
 pub(crate) fn request_builder() -> HttpRequestBuilder {
     HttpRequestBuilder::new().middleware(crate::middleware::BACKEND_API_MIDDLEWARE.clone())
 }
 
+pub async fn user_sign_up_request(params: SignUpParams, url: &str) -> Result<SignUpResponse, ServerError> {
+    let response = request_builder()
+        .post(&url.to_owned())
+        .protobuf(params)?
+        .response()
+        .await?;
+    Ok(response)
+}
+
+pub async fn user_sign_in_request(params: SignInParams, url: &str) -> Result<SignInResponse, ServerError> {
+    let response = request_builder()
+        .post(&url.to_owned())
+        .protobuf(params)?
+        .response()
+        .await?;
+    Ok(response)
+}
+
+pub async fn user_sign_out_request(token: &str, url: &str) -> Result<(), ServerError> {
+    let _ = request_builder()
+        .delete(&url.to_owned())
+        .header(HEADER_TOKEN, token)
+        .send()
+        .await?;
+    Ok(())
+}
+
+pub async fn get_user_profile_request(token: &str, url: &str) -> Result<UserProfile, ServerError> {
+    let user_profile = request_builder()
+        .get(&url.to_owned())
+        .header(HEADER_TOKEN, token)
+        .response()
+        .await?;
+    Ok(user_profile)
+}
+
+pub async fn update_user_profile_request(token: &str, params: UpdateUserParams, url: &str) -> Result<(), ServerError> {
+    let _ = request_builder()
+        .patch(&url.to_owned())
+        .header(HEADER_TOKEN, token)
+        .protobuf(params)?
+        .send()
+        .await?;
+    Ok(())
+}
+
 pub async fn create_workspace_request(
     token: &str,
     params: CreateWorkspaceParams,
diff --git a/shared-lib/backend-service/src/lib.rs b/shared-lib/backend-service/src/lib.rs
index fddeb9cffc..6bd5aa18c4 100644
--- a/shared-lib/backend-service/src/lib.rs
+++ b/shared-lib/backend-service/src/lib.rs
@@ -1,7 +1,6 @@
 pub mod configuration;
 pub mod errors;
+pub mod http_request;
 pub mod middleware;
 pub mod request;
 pub mod response;
-pub mod user_request;
-pub mod workspace_request;
diff --git a/shared-lib/backend-service/src/user_request.rs b/shared-lib/backend-service/src/user_request.rs
deleted file mode 100644
index 92043719c7..0000000000
--- a/shared-lib/backend-service/src/user_request.rs
+++ /dev/null
@@ -1,52 +0,0 @@
-use crate::{configuration::HEADER_TOKEN, errors::ServerError, request::HttpRequestBuilder};
-use flowy_user_data_model::entities::prelude::*;
-
-pub(crate) fn request_builder() -> HttpRequestBuilder {
-    HttpRequestBuilder::new().middleware(crate::middleware::BACKEND_API_MIDDLEWARE.clone())
-}
-
-pub async fn user_sign_up_request(params: SignUpParams, url: &str) -> Result<SignUpResponse, ServerError> {
-    let response = request_builder()
-        .post(&url.to_owned())
-        .protobuf(params)?
-        .response()
-        .await?;
-    Ok(response)
-}
-
-pub async fn user_sign_in_request(params: SignInParams, url: &str) -> Result<SignInResponse, ServerError> {
-    let response = request_builder()
-        .post(&url.to_owned())
-        .protobuf(params)?
-        .response()
-        .await?;
-    Ok(response)
-}
-
-pub async fn user_sign_out_request(token: &str, url: &str) -> Result<(), ServerError> {
-    let _ = request_builder()
-        .delete(&url.to_owned())
-        .header(HEADER_TOKEN, token)
-        .send()
-        .await?;
-    Ok(())
-}
-
-pub async fn get_user_profile_request(token: &str, url: &str) -> Result<UserProfile, ServerError> {
-    let user_profile = request_builder()
-        .get(&url.to_owned())
-        .header(HEADER_TOKEN, token)
-        .response()
-        .await?;
-    Ok(user_profile)
-}
-
-pub async fn update_user_profile_request(token: &str, params: UpdateUserParams, url: &str) -> Result<(), ServerError> {
-    let _ = request_builder()
-        .patch(&url.to_owned())
-        .header(HEADER_TOKEN, token)
-        .protobuf(params)?
-        .send()
-        .await?;
-    Ok(())
-}