@uniswap/smart-order-router
Version:
Uniswap Smart Order Router
223 lines • 19.2 kB
JavaScript
import { ChainId, Token } from '@uniswap/sdk-core';
import _ from 'lodash';
import { log, WRAPPED_NATIVE_CURRENCY } from '../util';
import { BTC_BNB, BUSD_BNB, CELO, CELO_ALFAJORES, CEUR_CELO, CUSD_CELO, CUSD_CELO_ALFAJORES, DAI_ARBITRUM, DAI_ARBITRUM_SEPOLIA, DAI_AVAX, DAI_BNB, DAI_CELO, DAI_CELO_ALFAJORES, DAI_MAINNET, DAI_MOONBEAM, DAI_OPTIMISM, DAI_OPTIMISM_GOERLI, DAI_OPTIMISM_SEPOLIA, DAI_POLYGON_MUMBAI, DAI_UNICHAIN, ETH_BNB, USDB_BLAST, USDC_ARBITRUM, USDC_ARBITRUM_GOERLI, USDC_ARBITRUM_SEPOLIA, USDC_AVAX, USDC_BASE, USDC_BASE_SEPOLIA, USDC_BNB, USDC_ETHEREUM_GNOSIS, USDC_MAINNET, USDC_MOONBEAM, USDC_OPTIMISM, USDC_OPTIMISM_GOERLI, USDC_OPTIMISM_SEPOLIA, USDC_POLYGON, USDC_SEPOLIA, USDC_UNICHAIN, USDC_WORLDCHAIN, USDT_ARBITRUM, USDT_BNB, USDT_MAINNET, USDT_MONAD_TESTNET, USDT_OPTIMISM, USDT_OPTIMISM_GOERLI, USDT_OPTIMISM_SEPOLIA, WBTC_ARBITRUM, WBTC_MAINNET, WBTC_MOONBEAM, WBTC_OPTIMISM, WBTC_OPTIMISM_GOERLI, WBTC_OPTIMISM_SEPOLIA, WBTC_WORLDCHAIN, WLD_WORLDCHAIN, WMATIC_POLYGON, WMATIC_POLYGON_MUMBAI, } from './token-provider';
// These tokens will added to the Token cache on initialization.
export const CACHE_SEED_TOKENS = {
[ChainId.MAINNET]: {
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.MAINNET],
USDC: USDC_MAINNET,
USDT: USDT_MAINNET,
WBTC: WBTC_MAINNET,
DAI: DAI_MAINNET,
// This token stores its symbol as bytes32, therefore can not be fetched on-chain using
// our token providers.
// This workaround adds it to the cache, so we won't try to fetch it on-chain.
RING: new Token(ChainId.MAINNET, '0x9469D013805bFfB7D3DEBe5E7839237e535ec483', 18, 'RING', 'RING'),
},
[ChainId.SEPOLIA]: {
USDC: USDC_SEPOLIA,
},
[ChainId.OPTIMISM]: {
USDC: USDC_OPTIMISM,
USDT: USDT_OPTIMISM,
WBTC: WBTC_OPTIMISM,
DAI: DAI_OPTIMISM,
},
[ChainId.OPTIMISM_GOERLI]: {
USDC: USDC_OPTIMISM_GOERLI,
USDT: USDT_OPTIMISM_GOERLI,
WBTC: WBTC_OPTIMISM_GOERLI,
DAI: DAI_OPTIMISM_GOERLI,
},
[ChainId.OPTIMISM_SEPOLIA]: {
USDC: USDC_OPTIMISM_SEPOLIA,
USDT: USDT_OPTIMISM_SEPOLIA,
WBTC: WBTC_OPTIMISM_SEPOLIA,
DAI: DAI_OPTIMISM_SEPOLIA,
},
[ChainId.ARBITRUM_ONE]: {
USDC: USDC_ARBITRUM,
USDT: USDT_ARBITRUM,
WBTC: WBTC_ARBITRUM,
DAI: DAI_ARBITRUM,
},
[ChainId.ARBITRUM_GOERLI]: {
USDC: USDC_ARBITRUM_GOERLI,
},
[ChainId.ARBITRUM_SEPOLIA]: {
USDC: USDC_ARBITRUM_SEPOLIA,
DAI: DAI_ARBITRUM_SEPOLIA,
},
[ChainId.POLYGON]: {
WMATIC: WMATIC_POLYGON,
USDC: USDC_POLYGON,
},
[ChainId.POLYGON_MUMBAI]: {
WMATIC: WMATIC_POLYGON_MUMBAI,
DAI: DAI_POLYGON_MUMBAI,
},
[ChainId.CELO]: {
CELO: CELO,
CUSD: CUSD_CELO,
CEUR: CEUR_CELO,
DAI: DAI_CELO,
},
[ChainId.CELO_ALFAJORES]: {
CELO: CELO_ALFAJORES,
CUSD: CUSD_CELO_ALFAJORES,
CEUR: CUSD_CELO_ALFAJORES,
DAI: DAI_CELO_ALFAJORES,
},
[ChainId.GNOSIS]: {
WXDAI: WRAPPED_NATIVE_CURRENCY[ChainId.GNOSIS],
USDC_ETHEREUM_GNOSIS: USDC_ETHEREUM_GNOSIS,
},
[ChainId.MOONBEAM]: {
USDC: USDC_MOONBEAM,
DAI: DAI_MOONBEAM,
WBTC: WBTC_MOONBEAM,
WGLMR: WRAPPED_NATIVE_CURRENCY[ChainId.MOONBEAM],
},
[ChainId.BNB]: {
USDC: USDC_BNB,
USDT: USDT_BNB,
BUSD: BUSD_BNB,
ETH: ETH_BNB,
DAI: DAI_BNB,
BTC: BTC_BNB,
WBNB: WRAPPED_NATIVE_CURRENCY[ChainId.BNB],
},
[ChainId.AVALANCHE]: {
USDC: USDC_AVAX,
DAI: DAI_AVAX,
WAVAX: WRAPPED_NATIVE_CURRENCY[ChainId.AVALANCHE],
},
[ChainId.BASE]: {
USDC: USDC_BASE,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.BASE],
},
[ChainId.BLAST]: {
USDB: USDB_BLAST,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.BLAST],
},
[ChainId.ZORA]: {
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.ZORA],
},
[ChainId.ZKSYNC]: {
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.ZKSYNC],
},
[ChainId.WORLDCHAIN]: {
USDC: USDC_WORLDCHAIN,
WLD: WLD_WORLDCHAIN,
WBTC: WBTC_WORLDCHAIN,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.WORLDCHAIN],
},
[ChainId.UNICHAIN_SEPOLIA]: {
USDC: USDC_SEPOLIA,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.UNICHAIN_SEPOLIA],
},
[ChainId.MONAD_TESTNET]: {
USDT: USDT_MONAD_TESTNET,
WMON: WRAPPED_NATIVE_CURRENCY[ChainId.MONAD_TESTNET],
},
[ChainId.BASE_SEPOLIA]: {
USDC: USDC_BASE_SEPOLIA,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.BASE_SEPOLIA],
},
[ChainId.UNICHAIN]: {
DAI: DAI_UNICHAIN,
USDC: USDC_UNICHAIN,
WETH: WRAPPED_NATIVE_CURRENCY[ChainId.UNICHAIN],
},
// Currently we do not have providers for Moonbeam mainnet or Gnosis testnet
};
/**
* Provider for getting token metadata that falls back to a different provider
* in the event of failure.
*
* @export
* @class CachingTokenProviderWithFallback
*/
export class CachingTokenProviderWithFallback {
constructor(chainId,
// Token metadata (e.g. symbol and decimals) don't change so can be cached indefinitely.
// Constructing a new token object is slow as sdk-core does checksumming.
tokenCache, primaryTokenProvider, fallbackTokenProvider) {
this.chainId = chainId;
this.tokenCache = tokenCache;
this.primaryTokenProvider = primaryTokenProvider;
this.fallbackTokenProvider = fallbackTokenProvider;
this.CACHE_KEY = (chainId, address) => `token-${chainId}-${address}`;
}
async getTokens(_addresses) {
const seedTokens = CACHE_SEED_TOKENS[this.chainId];
if (seedTokens) {
for (const token of Object.values(seedTokens)) {
await this.tokenCache.set(this.CACHE_KEY(this.chainId, token.address.toLowerCase()), token);
}
}
const addressToToken = {};
const symbolToToken = {};
const addresses = _(_addresses)
.map((address) => address.toLowerCase())
.uniq()
.value();
const addressesToFindInPrimary = [];
const addressesToFindInSecondary = [];
for (const address of addresses) {
if (await this.tokenCache.has(this.CACHE_KEY(this.chainId, address))) {
addressToToken[address.toLowerCase()] = (await this.tokenCache.get(this.CACHE_KEY(this.chainId, address)));
symbolToToken[addressToToken[address].symbol] =
(await this.tokenCache.get(this.CACHE_KEY(this.chainId, address)));
}
else {
addressesToFindInPrimary.push(address);
}
}
log.info({ addressesToFindInPrimary }, `Found ${addresses.length - addressesToFindInPrimary.length} out of ${addresses.length} tokens in local cache. ${addressesToFindInPrimary.length > 0
? `Checking primary token provider for ${addressesToFindInPrimary.length} tokens`
: ``}
`);
if (addressesToFindInPrimary.length > 0) {
const primaryTokenAccessor = await this.primaryTokenProvider.getTokens(addressesToFindInPrimary);
for (const address of addressesToFindInPrimary) {
const token = primaryTokenAccessor.getTokenByAddress(address);
if (token) {
addressToToken[address.toLowerCase()] = token;
symbolToToken[addressToToken[address].symbol] = token;
await this.tokenCache.set(this.CACHE_KEY(this.chainId, address.toLowerCase()), addressToToken[address]);
}
else {
addressesToFindInSecondary.push(address);
}
}
log.info({ addressesToFindInSecondary }, `Found ${addressesToFindInPrimary.length - addressesToFindInSecondary.length} tokens in primary. ${this.fallbackTokenProvider
? `Checking secondary token provider for ${addressesToFindInSecondary.length} tokens`
: `No fallback token provider specified. About to return.`}`);
}
if (this.fallbackTokenProvider && addressesToFindInSecondary.length > 0) {
const secondaryTokenAccessor = await this.fallbackTokenProvider.getTokens(addressesToFindInSecondary);
for (const address of addressesToFindInSecondary) {
const token = secondaryTokenAccessor.getTokenByAddress(address);
if (token) {
addressToToken[address.toLowerCase()] = token;
symbolToToken[addressToToken[address].symbol] = token;
await this.tokenCache.set(this.CACHE_KEY(this.chainId, address.toLowerCase()), addressToToken[address]);
}
}
}
return {
getTokenByAddress: (address) => {
return addressToToken[address.toLowerCase()];
},
getTokenBySymbol: (symbol) => {
return symbolToToken[symbol.toLowerCase()];
},
getAllTokens: () => {
return Object.values(addressToToken);
},
};
}
}
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