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@sky-mavis/smart-order-router

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"use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.CachingTokenProviderWithFallback = exports.CACHE_SEED_TOKENS = void 0; const katana_core_1 = require("@sky-mavis/katana-core"); const lodash_1 = __importDefault(require("lodash")); const util_1 = require("../util"); const gas_model_1 = require("../routers/alpha-router/gas-models/gas-model"); // These tokens will added to the Token cache on initialization. exports.CACHE_SEED_TOKENS = { [katana_core_1.ChainId.mainnet]: { WRON: util_1.WRAPPED_NATIVE_CURRENCY[katana_core_1.ChainId.mainnet], USDC: gas_model_1.USDC_RONIN_MAINNET, }, [katana_core_1.ChainId.testnet]: { WRON: util_1.WRAPPED_NATIVE_CURRENCY[katana_core_1.ChainId.testnet], USDC: gas_model_1.USDC_RONIN_TESTNET, }, }; /** * Provider for getting token metadata that falls back to a different provider * in the event of failure. * * @export * @class CachingTokenProviderWithFallback */ 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 = exports.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 = (0, lodash_1.default)(_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); } } util_1.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); } } util_1.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); }, }; } } exports.CachingTokenProviderWithFallback = CachingTokenProviderWithFallback; //# 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