Merge pull request #457 from yieldprotocol/feat/uniswapSlippage

Add in slippage parameter Uniswap
yieldprotocol · Sep 26, 2023 · 72e9700 · 72e9700
2 parents f220e44 + c1b3b16
commit 72e9700
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Showing 2 changed files with 11 additions and 4 deletions.
diff --git a/src/components/current/MessageTranslator.tsx b/src/components/current/MessageTranslator.tsx
@@ -186,6 +186,8 @@ export const Widget = (props: WidgetProps) => {
       tokenInSymbol={parsedArgs[0]}
       tokenOutSymbol={parsedArgs[1]}
       inputAmount={parsedArgs[3]}
+      transactionKeyword={parsedArgs[2]} // BUYAMOUNT or SELLAMOUNT
+      slippage={parsedArgs[4]}
     />
   );
 

diff --git a/src/components/current/widgets/uniswap/Uniswap.tsx b/src/components/current/widgets/uniswap/Uniswap.tsx
@@ -25,21 +25,26 @@ interface UniswapProps {
   tokenInSymbol: string;
   tokenOutSymbol: string;
   inputAmount: string;
+  slippage: string;
+  transactionKeyword: 'BUYAMOUNT' | 'SELLAMOUNT';
 }
 
-const Uniswap = ({ tokenInSymbol, tokenOutSymbol, inputAmount }: UniswapProps) => {
+const Uniswap = ({ tokenInSymbol, tokenOutSymbol, inputAmount, slippage, transactionKeyword }: UniswapProps) => {
   const chainId = useChainId();
+  const isBuying = transactionKeyword === 'BUYAMOUNT';
 
   const { address: recipient } = useAccount();
   const { data: tokenIn, isETH: tokenInIsETH } = useToken(tokenInSymbol);
   const { isETH: tokenOutIsETH } = useToken(tokenOutSymbol);
   const { data: tokenInChecked } = useToken(tokenInIsETH ? 'WETH' : tokenInSymbol);
   const { data: tokenOutChecked } = useToken(tokenOutIsETH ? 'WETH' : tokenOutSymbol);
   const input = useInput(inputAmount, tokenInChecked?.symbol!);
-  const slippage = 2.0; // in percentage terms
+
+  const slippage_ = +slippage || 0.5; // in percentage terms
+
   const getSlippageAdjustedAmount = (amount: BigNumber) =>
     BigNumber.from(amount)
-      .mul(10000 - slippage * 100)
+      .mul(10000 - slippage_ * 100)
       .div(10000);
 
   // token out quote for amount in
@@ -250,7 +255,7 @@ const Uniswap = ({ tokenInSymbol, tokenOutSymbol, inputAmount }: UniswapProps) =
       <ListResponse
         title="Breakdown"
         data={[
-          ['Slippage', `${slippage}%`],
+          ['Slippage', `${slippage_}%`],
           ['Minimum swap', cleanValue(amountOutMinimum_, 2)],
           ['Route', `${tokenInSymbol}-${tokenOutSymbol}`],
         ]}