diff --git a/backend/sync_server/src/app_state/database/models.rs b/backend/sync_server/src/app_state/database/models.rs
index 197d96d7..a83202b9 100644
--- a/backend/sync_server/src/app_state/database/models.rs
+++ b/backend/sync_server/src/app_state/database/models.rs
@@ -30,13 +30,17 @@ impl PartialEq<Self> for StoredDocumentVersion {
 #[derive(TS, Debug, Clone, Serialize, JsonSchema)]
 #[serde(rename_all = "camelCase")]
 pub struct DocumentVersionWithoutContent {
+    #[ts(as = "i32")]
     pub vault_update_id: VaultUpdateId,
+
     pub document_id: DocumentId,
     pub relative_path: String,
     pub updated_date: DateTime<Utc>,
     pub is_deleted: bool,
     pub user_id: UserId,
     pub device_id: DeviceId,
+
+    #[ts(as = "i32")]
     pub content_size: u64,
 }
 
diff --git a/backend/sync_server/src/app_state/websocket/models.rs b/backend/sync_server/src/app_state/websocket/models.rs
index 3205ff25..e6b1bade 100644
--- a/backend/sync_server/src/app_state/websocket/models.rs
+++ b/backend/sync_server/src/app_state/websocket/models.rs
@@ -10,6 +10,8 @@ use crate::app_state::database::models::{DeviceId, DocumentVersionWithoutContent
 pub struct WebSocketHandshake {
     pub token: String,
     pub device_id: DeviceId,
+
+    #[ts(as = "Option<i32>")]
     pub last_seen_vault_update_id: Option<VaultUpdateId>,
 }
 
@@ -40,6 +42,7 @@ pub struct WebSocketVaultUpdate {
 }
 
 #[derive(TS, Deserialize, Clone, Debug)]
+#[serde(rename_all = "camelCase", tag = "type")]
 #[ts(export)]
 pub enum WebSocketClientMessage {
     Handshake(WebSocketHandshake),
@@ -47,6 +50,7 @@ pub enum WebSocketClientMessage {
 }
 
 #[derive(TS, Serialize, Clone, Debug)]
+#[serde(rename_all = "camelCase", tag = "type")]
 #[ts(export)]
 pub enum WebSocketServerMessage {
     VaultUpdate(WebSocketVaultUpdate),
diff --git a/scripts/update-api-types.sh b/scripts/update-api-types.sh
index d9f39566..6fc7f6cd 100755
--- a/scripts/update-api-types.sh
+++ b/scripts/update-api-types.sh
@@ -4,5 +4,12 @@ set -e
 
 ./scripts/utils/wait-for-server.sh
 
+rm -rf backend/sync_server/bindings
+cd backend
+cargo test export_bindings
+cd -
+
+cp -r backend/sync_server/bindings/* frontend/sync-client/src/services/types/
+
 npm install -g openapi-typescript
-openapi-typescript http://localhost:3000/api.json --output frontend/sync-client/src/services/types.ts
+openapi-typescript http://localhost:3000/api.json --output frontend/sync-client/src/services/types/http-api.ts