new api service and logic implemented

ApiLayers/ApiValidations/Request/departments.py

@@ -0,0 +1,22 @@
+from typing import Optional
+from ApiValidations.Request import (
+    PydanticBaseModel,
+)
+
+
+class DepartmentsPydantic(PydanticBaseModel):
+
+    department_code: Optional[str]
+    department_name: Optional[str]
+    department_description: Optional[str] = None
+    company_uu_id: Optional[str] = None
+    parent_department_uu_id: Optional[int] = None
+
+
+# class UpdateDepartments(PydanticBaseModel):
+#
+#     department_code: Optional[str] = None
+#     department_name: Optional[str] = None
+#     department_description: Optional[str] = None
+#     company_uu_id: Optional[str] = None
+#     parent_department_uu_id: Optional[int] = None