missed a spot

src/hooks/useAllV3Routes.ts

+import { ChainId, Currency } from '@uniswap/sdk-core'
+import { Pool, Route } from '@uniswap/v3-sdk'
+import { useMemo } from 'react'
+import { wrappedCurrency } from '../utils/wrappedCurrency'
+import { useActiveWeb3React } from './index'
+import { useV3SwapPools } from './useV3SwapPools'
+
+function computeAllRoutes(
+  currencyIn: Currency,
+  currencyOut: Currency,
+  pools: Pool[],
+  chainId: ChainId,
+  currentPath: Pool[] = [],
+  allPaths: Route[] = [],
+  startCurrencyIn: Currency = currencyIn,
+  maxHops = 2
+): Route[] {
+  const tokenIn = wrappedCurrency(currencyIn, chainId)
+  const tokenOut = wrappedCurrency(currencyOut, chainId)
+
+  if (!tokenIn || !tokenOut) {
+    throw new Error('Could not wrap currencies')
+  }
+
+  for (const pool of pools) {
+    if (currentPath.indexOf(pool) !== -1 || !pool.involvesToken(tokenIn)) continue
+
+    const outputToken = pool.token0.equals(tokenIn) ? pool.token1 : pool.token0
+    if (outputToken.equals(tokenOut)) {
+      console.log(startCurrencyIn, [...currentPath, pool], currencyOut)
+      allPaths.push(new Route([...currentPath, pool], startCurrencyIn, currencyOut))
+    } else if (maxHops > 1) {
+      computeAllRoutes(
+        outputToken,
+        currencyOut,
+        pools,
+        chainId,
+        [...currentPath, pool],
+        allPaths,
+        startCurrencyIn,
+        maxHops - 1
+      )
+    }
+  }
+
+  return allPaths
+}
+
+/**
+ * Returns all the routes from an input currency to an output currency
+ * @param currencyIn the input currency
+ * @param currencyOut the output currency
+ */
+export function useAllV3Routes(currencyIn?: Currency, currencyOut?: Currency): Route[] {
+  const { chainId } = useActiveWeb3React()
+  const { pools } = useV3SwapPools(currencyIn, currencyOut)
+
+  return useMemo(() => {
+    if (!chainId || !pools || !currencyIn || !currencyOut) return []
+
+    return computeAllRoutes(currencyIn, currencyOut, pools, chainId)
+  }, [chainId, currencyIn, currencyOut, pools])
+}

src/hooks/useContract.ts

@@ -7,6 +7,7 @@ import { ChainId, WETH9 } from '@uniswap/sdk-core'
 import { abi as IUniswapV2PairABI } from '@uniswap/v2-core/build/IUniswapV2Pair.json'
 import { abi as V3FactoryABI } from '@uniswap/v3-core/artifacts/contracts/UniswapV3Factory.sol/UniswapV3Factory.json'
 import { abi as V3PoolABI } from '@uniswap/v3-core/artifacts/contracts/UniswapV3Pool.sol/UniswapV3Pool.json'
+import { abi as QuoterABI } from '@uniswap/v3-periphery/artifacts/contracts/lens/Quoter.sol/Quoter.json'
 import { abi as V2MigratorABI } from '@uniswap/v3-periphery/artifacts/contracts/V3Migrator.sol/V3Migrator.json'
 import { abi as TickLensABI } from '@uniswap/v3-periphery/artifacts/contracts/lens/TickLens.sol/TickLens.json'
 
@@ -34,9 +35,10 @@ import {
   V3_CORE_FACTORY_ADDRESSES,
   TICK_LENS_ADDRESSES,
   V2_MIGRATOR_ADDRESSES,
+  QUOTER_ADDRESSES,
 } from 'constants/v3'
 import { useMemo } from 'react'
-import { TickLens, UniswapV3Factory, UniswapV3Pool } from 'types/v3'
+import { Quoter, TickLens, UniswapV3Factory, UniswapV3Pool } from 'types/v3'
 import { NonfungiblePositionManager } from 'types/v3/NonfungiblePositionManager'
 import { V3Migrator } from 'types/v3/V3Migrator'
 import { getContract } from 'utils'
@@ -162,6 +164,11 @@ export function useV3Pool(address: string | undefined): UniswapV3Pool | null {
   return useContract(address, V3PoolABI) as UniswapV3Pool | null
 }
 
+export function useV3Quoter(): Quoter | null {
+  const { chainId } = useActiveWeb3React()
+  return useContract(chainId ? QUOTER_ADDRESSES[chainId] : undefined, QuoterABI) as Quoter | null
+}
+
 export function useTickLens(): TickLens | null {
   const { chainId } = useActiveWeb3React()
   const address = chainId ? TICK_LENS_ADDRESSES[chainId] : undefined

yarn.lock

@@ -4087,17 +4087,16 @@
   resolved "https://registry.yarnpkg.com/@uniswap/merkle-distributor/-/merkle-distributor-1.0.1.tgz#dc3d911f65a860fc3f0cae074bdcd08ed6a27a4d"
   integrity sha512-5gDiTI5hrXIh5UWTrxKYjw30QQDnpl8ckDSpefldNenDlYO1RKkdUYMYpvrqGi2r7YzLYTlO6+TDlNs6O7hDRw==
 
-"@uniswap/sdk-core@^1.0.9":
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/@uniswap/sdk-core/-/sdk-core-1.0.9.tgz#67e8d506e2c563f5183245ae9c32c54ac083479b"
-  integrity sha512-CWvDhN7mU+v786HEqAcyDhRMlLt9r6/Etgcduc36PlmmWk1Bb2XyK/UGMu/MD8cB9NlJ0h17WLx/X+CFg93ivg==
+"@uniswap/sdk-core@^1.0.10":
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/@uniswap/sdk-core/-/sdk-core-1.0.10.tgz#a30118ac29319bd83113f9c90eab99f803ec9267"
+  integrity sha512-8aD3xkzNDI3Ffh7PdLIcmraZr/6knqQuamVOv96EN8lhouEYH2ZuRbBWb7eZa/W7NwOLjlXM7XHi5gWJKzvbkg==
   dependencies:
     "@ethersproject/address" "^5.0.2"
     big.js "^5.2.2"
     decimal.js-light "^2.5.0"
     jsbi "^3.1.4"
     tiny-invariant "^1.1.0"
-    tiny-warning "^1.0.3"
     toformat "^2.0.0"
 
 "@uniswap/token-lists@^1.0.0-beta.19":
@@ -4123,14 +4122,14 @@
     "@uniswap/lib" "1.1.1"
     "@uniswap/v2-core" "1.0.0"
 
-"@uniswap/v2-sdk@^1.0.7":
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/@uniswap/v2-sdk/-/v2-sdk-1.0.7.tgz#442eadcf1283356dea7c96c21e24b70ede74ae4d"
-  integrity sha512-HutwgAVEd2vxn+yNOHlO3Tu3oExudmgo/f6AzWjq99P0JcF3d8oi7+zJ/5/PSItk3hENZ1RVUaIvivV1uMNBGg==
+"@uniswap/v2-sdk@^1.0.8":
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/@uniswap/v2-sdk/-/v2-sdk-1.0.8.tgz#6ea8a7a3861a3d2be536d2f5f1405d4a1e4dd024"
+  integrity sha512-WmS2KXSfe251Q8cZ4Scb7NOapIC1llCzPLOmnz3Wiuce2wnGnx+IeQEdfeWj3N4o6Xd9QrUykXOx1B5mjn8nxA==
   dependencies:
     "@ethersproject/address" "^5.0.0"
     "@ethersproject/solidity" "^5.0.0"
-    "@uniswap/sdk-core" "^1.0.9"
+    "@uniswap/sdk-core" "^1.0.10"
     tiny-invariant "^1.1.0"
     tiny-warning "^1.0.3"
 
@@ -4159,14 +4158,14 @@
     "@uniswap/v2-core" "1.0.1"
     "@uniswap/v3-core" "1.0.0-rc.2"
 
-"@uniswap/v3-sdk@^1.0.0-alpha.18":
-  version "1.0.0-alpha.18"
-  resolved "https://registry.yarnpkg.com/@uniswap/v3-sdk/-/v3-sdk-1.0.0-alpha.18.tgz#53579f46f9939ed429f6e5d7fbf52bdd784145b6"
-  integrity sha512-CQNCfCKLoAWZHUjfCAu+TxLx64vjKHzgxP5uzM4aR61pFkINNCtRnChcJ96paORieezWwM411wW2VJ1DlC/nqQ==
+"@uniswap/v3-sdk@^1.0.0-alpha.19":
+  version "1.0.0-alpha.19"
+  resolved "https://registry.yarnpkg.com/@uniswap/v3-sdk/-/v3-sdk-1.0.0-alpha.19.tgz#b84d7f98278fd4be6488ebaca7f0d6cc2dec9ebd"
+  integrity sha512-SJMFbAmqFlFhuYpA+bhuCqEa/TYFKtBu3js5GpbHQTttUO6fF1W4eFn6I4D+XCWsfx9T8WQKMNAxQsgyhIQDZA==
   dependencies:
     "@ethersproject/abi" "^5.0.12"
     "@ethersproject/solidity" "^5.0.9"
-    "@uniswap/sdk-core" "^1.0.9"
+    "@uniswap/sdk-core" "^1.0.10"
     "@uniswap/v3-periphery" "^1.0.0-beta.22"
     tiny-invariant "^1.1.0"
     tiny-warning "^1.0.3"