From 4e473ee5c74ec30ef6adb002d4324424e15a2f23 Mon Sep 17 00:00:00 2001
From: JD <jann.driessen@gmx.de>
Date: Wed, 11 Dec 2024 11:32:37 -0500
Subject: [PATCH] feat: add slippage for preview amounts (#98)

---
 src/utils/component-swap-data.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/utils/component-swap-data.ts b/src/utils/component-swap-data.ts
index 427bc300..ff13bcdd 100644
--- a/src/utils/component-swap-data.ts
+++ b/src/utils/component-swap-data.ts
@@ -207,7 +207,11 @@ async function getAmount(
       functionName: isMinting ? 'previewMint' : 'previewRedeem',
       args: [issuanceUnits],
     })) as bigint
-    return preview
+    if (isMinting) {
+      return (preview * BigInt(10001)) / BigInt(10000)
+    } else {
+      return (preview * BigInt(9999)) / BigInt(10000)
+    }
   } catch {
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     const usdc = getTokenByChainAndSymbol(chainId, 'USDC')!