From 0726bd7b9f9798ca5a059eea1663f6d03fc0220a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dani=20G=C3=A1mez=20Franco?= <gmzcodes@outlook.com>
Date: Thu, 5 Feb 2026 16:43:50 +0100
Subject: [PATCH] feat: update cowswap adapter

---
 .../Aggregator/adapters/cowswap/index.ts      | 96 +++++++++++--------
 1 file changed, 58 insertions(+), 38 deletions(-)

diff --git a/src/components/Aggregator/adapters/cowswap/index.ts b/src/components/Aggregator/adapters/cowswap/index.ts
index 0acd0918..08004c9b 100644
--- a/src/components/Aggregator/adapters/cowswap/index.ts
+++ b/src/components/Aggregator/adapters/cowswap/index.ts
@@ -9,44 +9,63 @@ import { config } from '../../../WalletProvider';
 import { chainsMap } from '../../constants';
 import { ABI } from './abi';
 
+// https://docs.cow.fi/cow-protocol/tutorials/solvers/local_test
 export const chainToId = {
-	ethereum: 'https://api.cow.fi/mainnet',
-	gnosis: 'https://api.cow.fi/xdai',
 	arbitrum: 'https://api.cow.fi/arbitrum_one',
-	base: 'https://api.cow.fi/base',
 	avax: 'https://api.cow.fi/avalanche',
-	polygon: 'https://api.cow.fi/polygon'
-};
+	base: 'https://api.cow.fi/base',
+	bsc: 'https://api.cow.fi/bnb',
+	ethereum: 'https://api.cow.fi/mainnet',
+	gnosis: 'https://api.cow.fi/xdai',
+	ink: 'https://api.cow.fi/ink',
+	linea: 'https://api.cow.fi/linea',
+	plasma: 'https://api.cow.fi/plasma',
+	polygon: 'https://api.cow.fi/polygon',
+} as const;
+
+type CowSwapSupportedChainId = keyof typeof chainToId;
 
 export const cowSwapEthFlowSlippagePerChain = {
-	ethereum: 2,
-	gnosis: 0.5,
 	arbitrum: 0.5,
-	base: 0.5,
 	avax: 0.5,
-	polygon: 0.5
-};
+	base: 0.5,
+	bsc: 0.5,
+	ethereum: 2,
+	gnosis: 0.5,
+	ink: 0.5,
+	linea: 0.5,
+	plasma: 0.5,
+	polygon: 0.5,
+} as const satisfies Record<CowSwapSupportedChainId, number>;
 
 const wrappedTokens = {
-	ethereum: '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2',
-	gnosis: '0xe91D153E0b41518A2Ce8Dd3D7944Fa863463a97d',
 	arbitrum: '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1',
-	base: '0x4200000000000000000000000000000000000006',
 	avax: '0xb31f66aa3c1e785363f0875a1b74e27b85fd66c7',
-	polygon: '0x0d500b1d8e8ef31e21c99d1db9a6444d3adf1270'
-};
+	base: '0x4200000000000000000000000000000000000006',
+	bsc: '0x2170ed0880ac9a755fd29b2688956bd959f933f8',
+	ethereum: '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2',
+	gnosis: '0xe91D153E0b41518A2Ce8Dd3D7944Fa863463a97d',
+	ink: '0x4200000000000000000000000000000000000006',
+	linea: '0xe5d7c2a44ffddf6b295a15c148167daaaf5cf34f',
+	plasma: '0x9895d81bb462a195b4922ed7de0e3acd007c32cb',
+	polygon: '0x0d500b1d8e8ef31e21c99d1db9a6444d3adf1270',
+} as const satisfies Record<CowSwapSupportedChainId, string>;
 
 const cowContractAddress = '0xC92E8bdf79f0507f65a392b0ab4667716BFE0110';
 const cowSwapEthFlowContractAddress = '0xba3cb449bd2b4adddbc894d8697f5170800eadec';
 
 const nativeSwapAddress = {
-	ethereum: cowSwapEthFlowContractAddress,
-	gnosis: cowSwapEthFlowContractAddress,
 	arbitrum: cowSwapEthFlowContractAddress,
-	base: cowSwapEthFlowContractAddress,
 	avax: cowSwapEthFlowContractAddress,
-	polygon: cowSwapEthFlowContractAddress
-};
+	base: cowSwapEthFlowContractAddress,
+	bsc: cowSwapEthFlowContractAddress,
+	ethereum: cowSwapEthFlowContractAddress,
+	gnosis: cowSwapEthFlowContractAddress,
+	ink: cowSwapEthFlowContractAddress,
+	linea: cowSwapEthFlowContractAddress,
+	plasma: cowSwapEthFlowContractAddress,
+	polygon: cowSwapEthFlowContractAddress,
+} as const satisfies Record<CowSwapSupportedChainId, string>;
 
 export const name = 'CowSwap';
 export const token = 'COW';
@@ -56,6 +75,7 @@ export const isOutputAvailable = true;
 export function approvalAddress() {
 	return cowContractAddress;
 }
+
 const nativeToken = '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE';
 
 const feeRecipientAddress = '0x1713B79e3dbb8A76D80e038CA701A4a781AC69eB';
@@ -87,26 +107,26 @@ function buildAppData(slippage: string) {
 
 const waitForOrder =
 	({ uid, trader, chain }) =>
-	(onSuccess) => {
-		const unwatch = watchContractEvent(config, {
-			address: '0x9008D19f58AAbD9eD0D60971565AA8510560ab41',
-			abi: ABI.settlement,
-			eventName: 'Trade',
-			args: { owner: trader },
-			chainId: chainsMap[chain],
-			onLogs(logs) {
-				const trade = logs.find((log) => log.data.includes(uid.substring(2)));
-				if (trade) {
-					onSuccess();
+		(onSuccess) => {
+			const unwatch = watchContractEvent(config, {
+				address: '0x9008D19f58AAbD9eD0D60971565AA8510560ab41',
+				abi: ABI.settlement,
+				eventName: 'Trade',
+				args: { owner: trader },
+				chainId: chainsMap[chain],
+				onLogs(logs) {
+					const trade = logs.find((log) => log.data.includes(uid.substring(2)));
+					if (trade) {
+						onSuccess();
+						unwatch();
+					}
+				},
+				onError(error) {
+					console.log('Error confirming order status', error);
 					unwatch();
 				}
-			},
-			onError(error) {
-				console.log('Error confirming order status', error);
-				unwatch();
-			}
-		});
-	};
+			});
+		};
 
 // https://docs.cow.fi/tutorials/how-to-submit-orders-via-the-api/2.-query-the-fee-endpoint
 export async function getQuote(chain: string, from: string, to: string, amount: string, extra: ExtraData) {