feat: add router trade adapter

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@uniswap/universal-router-sdk",
-  "version": "1.8.1",
+  "version": "2.0.0",
   "description": "sdk for integrating with the Universal Router contracts",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",

src/entities/protocols/uniswap.ts

@@ -31,6 +31,7 @@ export type FlatFeeOptions = {
 // so we extend swap options with the permit2 permit
 // when safe mode is enabled, the SDK will add an extra ETH sweep for security
 export type SwapOptions = Omit<RouterSwapOptions, 'inputTokenPermit'> & {
+  payerIsUser?: boolean
   inputTokenPermit?: Permit2Permit
   flatFee?: FlatFeeOptions
   safeMode?: boolean
@@ -53,7 +54,10 @@ export class UniswapTrade implements Command {
   }
 
   encode(planner: RoutePlanner, _config: TradeConfig): void {
-    let payerIsUser = true
+    if(this.options.payerIsUser === undefined) {
+      // default to user as payer
+      Object.assign(this.options, { payerIsUser: true })
+    }
 
     // If the input currency is the native currency, we need to wrap it with the router as the recipient
     if (this.trade.inputAmount.currency.isNative) {
@@ -63,7 +67,7 @@ export class UniswapTrade implements Command {
         this.trade.maximumAmountIn(this.options.slippageTolerance).quotient.toString(),
       ])
       // since WETH is now owned by the router, the router pays for inputs
-      payerIsUser = false
+      Object.assign(this.options, { payerIsUser: false })
     }
     // The overall recipient at the end of the trade, SENDER_AS_RECIPIENT uses the msg.sender
     this.options.recipient = this.options.recipient ?? SENDER_AS_RECIPIENT
@@ -81,13 +85,13 @@ export class UniswapTrade implements Command {
     for (const swap of this.trade.swaps) {
       switch (swap.route.protocol) {
         case Protocol.V2:
-          addV2Swap(planner, swap, this.trade.tradeType, this.options, payerIsUser, routerMustCustody)
+          addV2Swap(planner, swap, this.trade.tradeType, this.options, routerMustCustody)
           break
         case Protocol.V3:
-          addV3Swap(planner, swap, this.trade.tradeType, this.options, payerIsUser, routerMustCustody)
+          addV3Swap(planner, swap, this.trade.tradeType, this.options, routerMustCustody)
           break
         case Protocol.MIXED:
-          addMixedSwap(planner, swap, this.trade.tradeType, this.options, payerIsUser, routerMustCustody)
+          addMixedSwap(planner, swap, this.trade.tradeType, this.options, routerMustCustody)
           break
         default:
           throw new Error('UNSUPPORTED_TRADE_PROTOCOL')
@@ -165,7 +169,6 @@ function addV2Swap<TInput extends Currency, TOutput extends Currency>(
   { route, inputAmount, outputAmount }: Swap<TInput, TOutput>,
   tradeType: TradeType,
   options: SwapOptions,
-  payerIsUser: boolean,
   routerMustCustody: boolean
 ): void {
   const trade = new V2Trade(
@@ -181,15 +184,15 @@ function addV2Swap<TInput extends Currency, TOutput extends Currency>(
       trade.maximumAmountIn(options.slippageTolerance).quotient.toString(),
       trade.minimumAmountOut(options.slippageTolerance).quotient.toString(),
       route.path.map((pool) => pool.address),
-      payerIsUser,
+      options.payerIsUser,
     ])
   } else if (tradeType == TradeType.EXACT_OUTPUT) {
     planner.addCommand(CommandType.V2_SWAP_EXACT_OUT, [
       routerMustCustody ? ROUTER_AS_RECIPIENT : options.recipient,
       trade.minimumAmountOut(options.slippageTolerance).quotient.toString(),
       trade.maximumAmountIn(options.slippageTolerance).quotient.toString(),
       route.path.map((pool) => pool.address),
-      payerIsUser,
+      options.payerIsUser,
     ])
   }
 }
@@ -200,7 +203,6 @@ function addV3Swap<TInput extends Currency, TOutput extends Currency>(
   { route, inputAmount, outputAmount }: Swap<TInput, TOutput>,
   tradeType: TradeType,
   options: SwapOptions,
-  payerIsUser: boolean,
   routerMustCustody: boolean
 ): void {
   const trade = V3Trade.createUncheckedTrade({
@@ -217,15 +219,15 @@ function addV3Swap<TInput extends Currency, TOutput extends Currency>(
       trade.maximumAmountIn(options.slippageTolerance).quotient.toString(),
       trade.minimumAmountOut(options.slippageTolerance).quotient.toString(),
       path,
-      payerIsUser,
+      options.payerIsUser,
     ])
   } else if (tradeType == TradeType.EXACT_OUTPUT) {
     planner.addCommand(CommandType.V3_SWAP_EXACT_OUT, [
       routerMustCustody ? ROUTER_AS_RECIPIENT : options.recipient,
       trade.minimumAmountOut(options.slippageTolerance).quotient.toString(),
       trade.maximumAmountIn(options.slippageTolerance).quotient.toString(),
       path,
-      payerIsUser,
+      options.payerIsUser,
     ])
   }
 }
@@ -236,7 +238,6 @@ function addMixedSwap<TInput extends Currency, TOutput extends Currency>(
   swap: Swap<TInput, TOutput>,
   tradeType: TradeType,
   options: SwapOptions,
-  payerIsUser: boolean,
   routerMustCustody: boolean
 ): void {
   const { route, inputAmount, outputAmount } = swap
@@ -245,9 +246,9 @@ function addMixedSwap<TInput extends Currency, TOutput extends Currency>(
   // single hop, so it can be reduced to plain v2 or v3 swap logic
   if (route.pools.length === 1) {
     if (route.pools[0] instanceof Pool) {
-      return addV3Swap(planner, swap, tradeType, options, payerIsUser, routerMustCustody)
+      return addV3Swap(planner, swap, tradeType, options, routerMustCustody)
     } else if (route.pools[0] instanceof Pair) {
-      return addV2Swap(planner, swap, tradeType, options, payerIsUser, routerMustCustody)
+      return addV2Swap(planner, swap, tradeType, options, routerMustCustody)
     } else {
       throw new Error('Invalid route type')
     }
@@ -302,15 +303,15 @@ function addMixedSwap<TInput extends Currency, TOutput extends Currency>(
         i == 0 ? amountIn : CONTRACT_BALANCE, // amountIn
         !isLastSectionInRoute(i) ? 0 : amountOut, // amountOut
         path, // path
-        payerIsUser && i === 0, // payerIsUser
+        options.payerIsUser && i === 0, // payerIsUser
       ])
     } else {
       planner.addCommand(CommandType.V2_SWAP_EXACT_IN, [
         isLastSectionInRoute(i) ? tradeRecipient : ROUTER_AS_RECIPIENT, // recipient
         i === 0 ? amountIn : CONTRACT_BALANCE, // amountIn
         !isLastSectionInRoute(i) ? 0 : amountOut, // amountOutMin
         newRoute.path.map((pool) => pool.address), // path
-        payerIsUser && i === 0,
+        options.payerIsUser && i === 0,
       ])
     }
   }

src/index.ts

@@ -1,5 +1,6 @@
 export { SwapRouter } from './swapRouter'
 export * from './entities'
+export * from './utils/routerTradeAdapter'
 export { RoutePlanner, CommandType } from './utils/routerCommands'
 export {
   UNIVERSAL_ROUTER_ADDRESS,

src/utils/constants.ts

@@ -1,3 +1,4 @@
+import { ChainId, Token } from '@uniswap/sdk-core'
 import { BigNumber } from 'ethers'
 
 type ChainConfig = {
@@ -106,6 +107,130 @@ const CHAIN_CONFIGS: { [key: number]: ChainConfig } = {
   },
 }
 
+export const WRAPPED_NATIVE_CURRENCY: { [chainId in ChainId]: Token } = {
+  [ChainId.MAINNET]: new Token(1, '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', 18, 'WETH', 'Wrapped Ether'),
+  [ChainId.GOERLI]: new Token(5, '0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6', 18, 'WETH', 'Wrapped Ether'),
+  [ChainId.SEPOLIA]: new Token(11155111, '0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14', 18, 'WETH', 'Wrapped Ether'),
+  [ChainId.BNB]: new Token(56, '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c', 18, 'WBNB', 'Wrapped BNB'),
+  [ChainId.OPTIMISM]: new Token(
+    ChainId.OPTIMISM,
+    '0x4200000000000000000000000000000000000006',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.OPTIMISM_GOERLI]: new Token(
+    ChainId.OPTIMISM_GOERLI,
+    '0x4200000000000000000000000000000000000006',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.OPTIMISM_SEPOLIA]: new Token(
+    ChainId.OPTIMISM_SEPOLIA,
+    '0x4200000000000000000000000000000000000006',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.ARBITRUM_ONE]: new Token(
+    ChainId.ARBITRUM_ONE,
+    '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.ARBITRUM_GOERLI]: new Token(
+    ChainId.ARBITRUM_GOERLI,
+    '0xe39Ab88f8A4777030A534146A9Ca3B52bd5D43A3',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.ARBITRUM_SEPOLIA]: new Token(
+    ChainId.ARBITRUM_SEPOLIA,
+    '0xc556bAe1e86B2aE9c22eA5E036b07E55E7596074',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.POLYGON]: new Token(
+    ChainId.POLYGON,
+    '0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270',
+    18,
+    'WMATIC',
+    'Wrapped MATIC'
+  ),
+  [ChainId.POLYGON_MUMBAI]: new Token(
+    ChainId.POLYGON_MUMBAI,
+    '0x9c3C9283D3e44854697Cd22D3Faa240Cfb032889',
+    18,
+    'WMATIC',
+    'Wrapped MATIC'
+  ),
+
+  // The Celo native currency 'CELO' implements the erc-20 token standard
+  [ChainId.CELO]: new Token(
+    ChainId.CELO,
+    '0x471EcE3750Da237f93B8E339c536989b8978a438',
+    18,
+    'CELO',
+    'Celo native asset'
+  ),
+  [ChainId.CELO_ALFAJORES]: new Token(
+    ChainId.CELO_ALFAJORES,
+    '0xF194afDf50B03e69Bd7D057c1Aa9e10c9954E4C9',
+    18,
+    'CELO',
+    'Celo native asset'
+  ),
+  [ChainId.GNOSIS]: new Token(
+    ChainId.GNOSIS,
+    '0xe91d153e0b41518a2ce8dd3d7944fa863463a97d',
+    18,
+    'WXDAI',
+    'Wrapped XDAI on Gnosis'
+  ),
+  [ChainId.MOONBEAM]: new Token(
+    ChainId.MOONBEAM,
+    '0xAcc15dC74880C9944775448304B263D191c6077F',
+    18,
+    'WGLMR',
+    'Wrapped GLMR'
+  ),
+  [ChainId.AVALANCHE]: new Token(
+    ChainId.AVALANCHE,
+    '0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7',
+    18,
+    'WAVAX',
+    'Wrapped AVAX'
+  ),
+  [ChainId.BASE]: new Token(ChainId.BASE, '0x4200000000000000000000000000000000000006', 18, 'WETH', 'Wrapped Ether'),
+  [ChainId.BASE_GOERLI]: new Token(
+    ChainId.BASE_GOERLI,
+    '0x4200000000000000000000000000000000000006',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.ROOTSTOCK]: new Token(
+    ChainId.ROOTSTOCK,
+    '0x542fDA317318eBF1d3DEAf76E0b632741A7e677d',
+    18,
+    'WRBTC',
+    'Wrapped BTC'
+  ),
+  [ChainId.ZORA]: new Token(ChainId.ZORA, '0x4200000000000000000000000000000000000006', 18, 'WETH', 'Wrapped Ether'),
+  [ChainId.ZORA_SEPOLIA]: new Token(
+    ChainId.ZORA_SEPOLIA,
+    '0x4200000000000000000000000000000000000006',
+    18,
+    'WETH',
+    'Wrapped Ether'
+  ),
+  [ChainId.BLAST]: new Token(ChainId.BLAST, '0x4300000000000000000000000000000000000004', 18, 'WETH', 'Wrapped Ether'),
+}
+
 export const UNIVERSAL_ROUTER_ADDRESS = (chainId: number): string => {
   if (!(chainId in CHAIN_CONFIGS)) throw new Error(`Universal Router not deployed on chain ${chainId}`)
   return CHAIN_CONFIGS[chainId].router