diff --git a/app/core/entities/accessory.py b/app/core/entities/accessory.py
index a5b9c8d..3a39bab 100644
--- a/app/core/entities/accessory.py
+++ b/app/core/entities/accessory.py
@@ -3,7 +3,7 @@ from typing import Optional
 
 
 class AccessoryEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     volume: Optional[float] = None
     weight: Optional[float] = None
diff --git a/app/core/entities/city.py b/app/core/entities/city.py
index 98b8943..914dc40 100644
--- a/app/core/entities/city.py
+++ b/app/core/entities/city.py
@@ -3,7 +3,7 @@ from typing import Optional
 
 
 class CityEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     federal_district_id: Optional[int] = None
 
diff --git a/app/core/entities/delivery_accessory.py b/app/core/entities/delivery_accessory.py
index b98e5e6..e1e2e0f 100644
--- a/app/core/entities/delivery_accessory.py
+++ b/app/core/entities/delivery_accessory.py
@@ -3,7 +3,7 @@ from typing import Optional
 
 
 class DeliveryAccessoryEntity(BaseModel):
-    id: int
+    id: Optional[int]
     queue: int
     count: int
     accessory_id: Optional[int] = None
diff --git a/app/core/entities/delivery_order.py b/app/core/entities/delivery_order.py
index 0fca2d8..708402d 100644
--- a/app/core/entities/delivery_order.py
+++ b/app/core/entities/delivery_order.py
@@ -4,7 +4,7 @@ from datetime import datetime
 
 
 class DeliveryOrderEntity(BaseModel):
-    id: int
+    id: Optional[int]
     order_datetime: datetime
     count_robots: int
     deadline: datetime
diff --git a/app/core/entities/federal_district.py b/app/core/entities/federal_district.py
index 59111d3..38c2d79 100644
--- a/app/core/entities/federal_district.py
+++ b/app/core/entities/federal_district.py
@@ -3,7 +3,7 @@ from typing import List, Optional
 
 
 class FederalDistrictEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     cities: Optional[List[int]] = None
 
diff --git a/app/core/entities/role.py b/app/core/entities/role.py
index 7602283..7c94ed9 100644
--- a/app/core/entities/role.py
+++ b/app/core/entities/role.py
@@ -3,7 +3,7 @@ from typing import List, Optional
 
 
 class RoleEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     users: Optional[List[int]] = None
 
diff --git a/app/core/entities/status.py b/app/core/entities/status.py
index c250c0d..2b7ef07 100644
--- a/app/core/entities/status.py
+++ b/app/core/entities/status.py
@@ -3,7 +3,7 @@ from typing import List, Optional
 
 
 class StatusEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     orders: Optional[List[int]] = None
     steps: Optional[List[int]] = None
diff --git a/app/core/entities/total_order.py b/app/core/entities/total_order.py
index 4725453..832044b 100644
--- a/app/core/entities/total_order.py
+++ b/app/core/entities/total_order.py
@@ -4,7 +4,7 @@ from typing import List, Optional
 
 
 class TotalOrderEntity(BaseModel):
-    id: int
+    id: Optional[int]
     order_datetime: datetime
     count_robots: int
     deadline: Optional[datetime] = None
diff --git a/app/core/entities/truck.py b/app/core/entities/truck.py
index acc8db1..bbf4f98 100644
--- a/app/core/entities/truck.py
+++ b/app/core/entities/truck.py
@@ -1,9 +1,9 @@
 from pydantic import BaseModel
-from typing import List
+from typing import List, Optional
 
 
 class TruckEntity(BaseModel):
-    id: int
+    id: Optional[int]
     name: str
     capacity: float
     volume: float
diff --git a/app/core/entities/user.py b/app/core/entities/user.py
index 4cd3822..7fce576 100644
--- a/app/core/entities/user.py
+++ b/app/core/entities/user.py
@@ -3,7 +3,7 @@ from typing import List, Optional
 
 
 class UserEntity(BaseModel):
-    id: int
+    id: Optional[int]
     first_name: str
     last_name: str
     login: str
diff --git a/app/main.py b/app/main.py
index d2fdd45..c4f7409 100644
--- a/app/main.py
+++ b/app/main.py
@@ -21,13 +21,13 @@ logger = logging.getLogger(__name__)
 
 app = FastAPI()
 
-# app.add_middleware(
-#     CORSMiddleware,
-#     allow_origins=['*'],
-#     allow_credentials=True,
-#     allow_methods=['GET', 'POST', 'PUT', 'DELETE'],
-#     allow_headers=['*'],
-# )
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=['*'],
+    allow_credentials=True,
+    allow_methods=['GET', 'POST', 'PUT', 'DELETE'],
+    allow_headers=['*'],
+)
 
 init_db()