From 0cba4d647dda147e5428f5733d9bdaa9cca203a6 Mon Sep 17 00:00:00 2001
From: Didier Guyon <60464752+DidierGuyon@users.noreply.github.com>
Date: Tue, 8 Aug 2023 13:51:44 +0200
Subject: [PATCH] fix(medusa): ExistingItems query in addOrUpdateLineItems
 (#4714)

---
 packages/medusa/src/services/cart.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/medusa/src/services/cart.ts b/packages/medusa/src/services/cart.ts
index 1f4b63df4f..fda650d251 100644
--- a/packages/medusa/src/services/cart.ts
+++ b/packages/medusa/src/services/cart.ts
@@ -798,10 +798,10 @@ class CartService extends TransactionBaseService {
         const existingItems = await lineItemServiceTx.list(
           {
             cart_id: cart.id,
-            variant_id: In([items.map((item) => item.variant_id)]),
+            variant_id: In(items.map((item) => item.variant_id)),
             should_merge: true,
           },
-          { select: ["id", "metadata", "quantity"] }
+          { select: ["id", "metadata", "quantity", "variant_id"] }
         )
 
         const existingItemsVariantMap = new Map()