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Commit 6694e5e3 authored by Moody Salem's avatar Moody Salem Committed by GitHub
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improvement(swap routing): consider more bases in the swap (#909) 

* consider more bases in the swap

* all match type

* max hops 2, only 1 result
parent 2c9a50a3
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Showing with 47 additions and 25 deletions
src/constants/index.ts
View file @ 6694e5e3
import { ChainId, JSBI, Percent, Token, WETH, Pair, TokenAmount } from '@uniswap/sdk'
import { fortmatic, injected, portis, walletconnect, walletlink } from '../connectors'
import { COMP, DAI, MKR, USDC, USDT } from './tokens/mainnet'
export const ROUTER_ADDRESS = '0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D'
// used to construct intermediary pairs for trading
export const BASES_TO_CHECK_TRADES_AGAINST: { readonly [chainId in ChainId]: Token[] } = {
[ChainId.MAINNET]: [
WETH[ChainId.MAINNET],
new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin'),
new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C')
],
// a list of tokens by chain
type ChainTokenList = {
readonly [chainId in ChainId]: Token[]
}
const WETH_ONLY: ChainTokenList = {
[ChainId.MAINNET]: [WETH[ChainId.MAINNET]],
[ChainId.ROPSTEN]: [WETH[ChainId.ROPSTEN]],
[ChainId.RINKEBY]: [WETH[ChainId.RINKEBY]],
[ChainId.GÖRLI]: [WETH[ChainId.GÖRLI]],
[ChainId.KOVAN]: [WETH[ChainId.KOVAN]]
}
// used to construct intermediary pairs for trading
export const BASES_TO_CHECK_TRADES_AGAINST: ChainTokenList = {
...WETH_ONLY,
[ChainId.MAINNET]: [...WETH_ONLY[ChainId.MAINNET], DAI, USDC, USDT, COMP, MKR]
}
// used for display in the default list when adding liquidity
export const SUGGESTED_BASES = BASES_TO_CHECK_TRADES_AGAINST
export const SUGGESTED_BASES: ChainTokenList = {
...WETH_ONLY,
[ChainId.MAINNET]: [...WETH_ONLY[ChainId.MAINNET], DAI, USDC, USDT]
}
// used to construct the list of all pairs we consider by default in the frontend
export const BASES_TO_TRACK_LIQUIDITY_FOR = BASES_TO_CHECK_TRADES_AGAINST
export const BASES_TO_TRACK_LIQUIDITY_FOR: ChainTokenList = {
...WETH_ONLY,
[ChainId.MAINNET]: [...WETH_ONLY[ChainId.MAINNET], DAI, USDC, USDT]
}
export const DUMMY_PAIRS_TO_PIN: { readonly [chainId in ChainId]?: Pair[] } = {
[ChainId.MAINNET]: [
......
src/constants/tokens/mainnet.ts
View file @ 6694e5e3
import { Token, ChainId } from '@uniswap/sdk'
export const DAI = new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin')
export const USDC = new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C')
export const USDT = new Token(ChainId.MAINNET, '0xdAC17F958D2ee523a2206206994597C13D831ec7', 6, 'USDT', 'Tether USD')
export const COMP = new Token(ChainId.MAINNET, '0xc00e94Cb662C3520282E6f5717214004A7f26888', 18, 'COMP', 'Compound')
export const MKR = new Token(ChainId.MAINNET, '0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2', 18, 'MKR', 'Maker')
export default [
new Token(ChainId.MAINNET, '0xB6eD7644C69416d67B522e20bC294A9a9B405B31', 8, '0xBTC', '0xBitcoin Token'),
new Token(ChainId.MAINNET, '0xfC1E690f61EFd961294b3e1Ce3313fBD8aa4f85d', 18, 'aDAI', 'Aave Interest bearing DAI'),
......@@ -19,9 +25,9 @@ export default [
new Token(ChainId.MAINNET, '0x39AA39c021dfbaE8faC545936693aC917d5E7563', 8, 'cUSDC', 'Compound USD Coin'),
new Token(ChainId.MAINNET, '0xaaAEBE6Fe48E54f431b0C390CfaF0b017d09D42d', 4, 'CEL', 'Celsius'),
new Token(ChainId.MAINNET, '0x06AF07097C9Eeb7fD685c692751D5C66dB49c215', 18, 'CHAI', 'Chai'),
new Token(ChainId.MAINNET, '0xc00e94Cb662C3520282E6f5717214004A7f26888', 18, 'COMP', 'Compound'),
COMP,
new Token(ChainId.MAINNET, '0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359', 18, 'SAI', 'Dai Stablecoin v1.0 (SAI)'),
new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin'),
DAI,
new Token(ChainId.MAINNET, '0x0Cf0Ee63788A0849fE5297F3407f701E122cC023', 18, 'DATA', 'Streamr DATAcoin'),
new Token(ChainId.MAINNET, '0xE0B7927c4aF23765Cb51314A0E0521A9645F0E2A', 9, 'DGD', 'DigixDAO'),
new Token(ChainId.MAINNET, '0x4f3AfEC4E5a3F2A6a1A411DEF7D7dFe50eE057bF', 9, 'DGX', 'Digix Gold Token'),
......@@ -62,7 +68,7 @@ export default [
new Token(ChainId.MAINNET, '0xd15eCDCF5Ea68e3995b2D0527A0aE0a3258302F8', 18, 'MCX', 'MachiX Token'),
new Token(ChainId.MAINNET, '0xa3d58c4E56fedCae3a7c43A725aeE9A71F0ece4e', 18, 'MET', 'Metronome'),
new Token(ChainId.MAINNET, '0x80f222a749a2e18Eb7f676D371F19ad7EFEEe3b7', 18, 'MGN', 'Magnolia Token'),
new Token(ChainId.MAINNET, '0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2', 18, 'MKR', 'Maker'),
MKR,
new Token(ChainId.MAINNET, '0xec67005c4E498Ec7f55E092bd1d35cbC47C91892', 18, 'MLN', 'Melon Token'),
new Token(ChainId.MAINNET, '0x957c30aB0426e0C93CD8241E2c60392d08c6aC8e', 0, 'MOD', 'Modum Token'),
new Token(ChainId.MAINNET, '0xe2f2a5C287993345a840Db3B0845fbC70f5935a5', 18, 'mUSD', 'mStable USD'),
......@@ -112,9 +118,9 @@ export default [
new Token(ChainId.MAINNET, '0x0000000000085d4780B73119b644AE5ecd22b376', 18, 'TUSD', 'TrueUSD'),
new Token(ChainId.MAINNET, '0x8400D94A5cb0fa0D041a3788e395285d61c9ee5e', 8, 'UBT', 'UniBright'),
new Token(ChainId.MAINNET, '0x04Fa0d235C4abf4BcF4787aF4CF447DE572eF828', 18, 'UMA', 'UMA Voting Token v1'),
new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C'),
USDC,
new Token(ChainId.MAINNET, '0xA4Bdb11dc0a2bEC88d24A3aa1E6Bb17201112eBe', 6, 'USDS', 'StableUSD'),
new Token(ChainId.MAINNET, '0xdAC17F958D2ee523a2206206994597C13D831ec7', 6, 'USDT', 'Tether USD'),
USDT,
new Token(ChainId.MAINNET, '0xeb269732ab75A6fD61Ea60b06fE994cD32a83549', 18, 'USDx', 'dForce'),
new Token(ChainId.MAINNET, '0x8f3470A7388c05eE4e7AF3d01D8C722b0FF52374', 18, 'VERI', 'Veritaseum'),
new Token(ChainId.MAINNET, '0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599', 8, 'WBTC', 'Wrapped BTC'),
......
src/hooks/Trades.ts
View file @ 6694e5e3
import { useMemo } from 'react'
import { Token, TokenAmount, Trade, ChainId, Pair } from '@uniswap/sdk'
import { Token, TokenAmount, Trade, Pair } from '@uniswap/sdk'
import flatMap from 'lodash.flatmap'
import { useActiveWeb3React } from './index'
......@@ -10,7 +10,7 @@ import { BASES_TO_CHECK_TRADES_AGAINST } from '../constants'
function useAllCommonPairs(tokenA?: Token, tokenB?: Token): Pair[] {
const { chainId } = useActiveWeb3React()
const bases = useMemo(() => BASES_TO_CHECK_TRADES_AGAINST[chainId as ChainId] ?? [], [chainId])
const bases: Token[] = chainId ? BASES_TO_CHECK_TRADES_AGAINST[chainId] : []
const allPairCombinations: [Token | undefined, Token | undefined][] = useMemo(
() => [
......@@ -31,13 +31,16 @@ function useAllCommonPairs(tokenA?: Token, tokenB?: Token): Pair[] {
// only pass along valid pairs, non-duplicated pairs
return useMemo(
() =>
allPairs
// filter out invalid pairs
.filter((p): p is Pair => !!p)
// filter out duplicated pairs
.filter(
(p, i, pairs) => i === pairs.findIndex(pair => pair?.liquidityToken.address === p.liquidityToken.address)
),
Object.values(
allPairs
// filter out invalid pairs
.filter((p): p is Pair => !!p)
// filter out duplicated pairs
.reduce<{ [pairAddress: string]: Pair }>((memo, curr) => {
memo[curr.liquidityToken.address] = memo[curr.liquidityToken.address] ?? curr
return memo
}, {})
),
[allPairs]
)
}
......@@ -53,7 +56,7 @@ export function useTradeExactIn(amountIn?: TokenAmount, tokenOut?: Token): Trade
return useMemo(() => {
if (amountIn && tokenOut && allowedPairs.length > 0) {
return Trade.bestTradeExactIn(allowedPairs, amountIn, tokenOut)[0] ?? null
return Trade.bestTradeExactIn(allowedPairs, amountIn, tokenOut, { maxHops: 2, maxNumResults: 1 })[0] ?? null
}
return null
}, [allowedPairs, amountIn, tokenOut])
......@@ -70,7 +73,7 @@ export function useTradeExactOut(tokenIn?: Token, amountOut?: TokenAmount): Trad
return useMemo(() => {
if (tokenIn && amountOut && allowedPairs.length > 0) {
return Trade.bestTradeExactOut(allowedPairs, tokenIn, amountOut)[0] ?? null
return Trade.bestTradeExactOut(allowedPairs, tokenIn, amountOut, { maxHops: 2, maxNumResults: 1 })[0] ?? null
}
return null
}, [allowedPairs, tokenIn, amountOut])
......
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