From 7b2b6b860d81fa8992a0fef36f76291e87e090e5 Mon Sep 17 00:00:00 2001
From: webdev403 <web.dev8231@gmail.com>
Date: Thu, 21 Mar 2024 05:11:23 -0400
Subject: [PATCH] fix hook to update swap slippage

---
 src/state/swap/hooks.ts    | 6 +++++-
 src/state/swap/v3/hooks.ts | 7 ++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/state/swap/hooks.ts b/src/state/swap/hooks.ts
index fa0a2af..d15d5ad 100644
--- a/src/state/swap/hooks.ts
+++ b/src/state/swap/hooks.ts
@@ -186,6 +186,9 @@ export function useDerivedSwapInfo(): {
   const chainIdToUse = chainId ?? ChainId.MATIC;
   const parsedQuery = useParsedQueryString();
   const swapType = parsedQuery ? parsedQuery.swapIndex : undefined;
+  const swapSlippage = parsedQuery?.slippage
+    ? (parsedQuery.slippage as string)
+    : undefined;
 
   const {
     independentField,
@@ -282,7 +285,7 @@ export function useDerivedSwapInfo(): {
       stableCoins && stableCoins.length > 0
         ? stableCoins.map((token) => token.address.toLowerCase())
         : [];
-    if (!slippageManuallySet) {
+    if (!swapSlippage && !slippageManuallySet) {
       if (
         inputCurrencyId &&
         outputCurrencyId &&
@@ -300,6 +303,7 @@ export function useDerivedSwapInfo(): {
     setUserSlippageTolerance,
     chainIdToUse,
     slippageManuallySet,
+    swapSlippage,
   ]);
 
   return {
diff --git a/src/state/swap/v3/hooks.ts b/src/state/swap/v3/hooks.ts
index e55f191..0711eae 100644
--- a/src/state/swap/v3/hooks.ts
+++ b/src/state/swap/v3/hooks.ts
@@ -249,13 +249,17 @@ export function useDerivedSwapInfo(): {
     inputError = `Insufficient ${amountIn.currency.symbol} balance`;
   }
 
+  const parsedQs = useParsedQueryString();
+  const swapSlippage = parsedQs.slippage
+    ? (parsedQs.slippage as string)
+    : undefined;
   useEffect(() => {
     const stableCoins = GlobalData.stableCoins[chainIdToUse];
     const stableCoinAddresses =
       stableCoins && stableCoins.length > 0
         ? stableCoins.map((token) => token.address.toLowerCase())
         : [];
-    if (!slippageManuallySet) {
+    if (!swapSlippage && !slippageManuallySet) {
       if (
         inputCurrencyId &&
         outputCurrencyId &&
@@ -273,6 +277,7 @@ export function useDerivedSwapInfo(): {
     setUserSlippageTolerance,
     chainIdToUse,
     slippageManuallySet,
+    swapSlippage,
   ]);
 
   return {