Add field_order attribute to frontend_node

src/backend/langflow/interface/custom/utils.py

@@ -72,6 +72,7 @@ def reorder_fields(frontend_node: CustomComponentFrontendNode, field_order: List
         if field.name not in field_order:
             reordered_fields.append(field)
     frontend_node.template.fields = reordered_fields
+    frontend_node.field_order = field_order
 
 
 def add_base_classes(

src/backend/langflow/template/frontend_node/base.py

@@ -74,6 +74,9 @@ class FrontendNode(BaseModel):
     frozen: bool = False
     """Whether the frontend node is frozen."""
 
+    field_order: list[str] = []
+    """Order of the fields in the frontend node."""
+
     beta: bool = False
     error: Optional[str] = None