aggregate functions

script/core/handlers/inventory.py

@@ -33,14 +33,19 @@ class InventoryData:
                             "order_id": order_id,
                         },
                 },
+                {
+                    "$addFields": {
+                        "customer_names": {"$toLower": "$customer_name"}
+                    }
+                },
                 {
                     "$sort":
                         {
-                            "customer_name": -1,
+                            "customer_names": -1,
                         },
                 },
                 {
-                    "$limit": 3
+                    "$limit": 5
                 },
                 {
                     "$project":