From b5c11249d1012a2d7f5f7112e530ec5d363ce371 Mon Sep 17 00:00:00 2001
From: markus <55011443+mdymalla@users.noreply.github.com>
Date: Tue, 28 May 2024 12:39:27 +1000
Subject: [PATCH] TD1453 fix type issue (#1830)

---
 packages/checkout/sdk/src/smartCheckout/sell/sell.ts | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/packages/checkout/sdk/src/smartCheckout/sell/sell.ts b/packages/checkout/sdk/src/smartCheckout/sell/sell.ts
index c06a92a439..ad60075714 100644
--- a/packages/checkout/sdk/src/smartCheckout/sell/sell.ts
+++ b/packages/checkout/sdk/src/smartCheckout/sell/sell.ts
@@ -253,10 +253,7 @@ export const sell = async (
       let tokenQuantity = BigNumber.from(1);
 
       // if type exists in sellToken then it is valid ERC721 or ERC1155 and not deprecated type
-      if ('type' in sellToken) {
-        const erc1155Token = sellToken as unknown as ERC1155Item | ERC721Item;
-        if (erc1155Token.type === ItemType.ERC1155) tokenQuantity = BigNumber.from(erc1155Token.amount);
-      }
+      if (sellTokenHasType && sellToken.type === ItemType.ERC1155) tokenQuantity = BigNumber.from(sellToken.amount);
 
       const orderBookFees = calculateFees(makerFees, buyTokenOrNative.amount, decimals, tokenQuantity);
       if (orderBookFees.length !== makerFees.length) {