@uniswap/smart-order-router
Version:
Uniswap Smart Order Router
76 lines • 7.37 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.BaseQuoter = void 0;
const lodash_1 = __importDefault(require("lodash"));
const util_1 = require("../../../util");
/**
* Interface for a Quoter.
* Defines the base dependencies, helper methods and interface for how to fetch quotes.
*
* @abstract
* @template CandidatePools
* @template Route
*/
class BaseQuoter {
constructor(tokenProvider, chainId, protocol, blockedTokenListProvider, tokenValidatorProvider) {
this.tokenProvider = tokenProvider;
this.chainId = chainId;
this.protocol = protocol;
this.blockedTokenListProvider = blockedTokenListProvider;
this.tokenValidatorProvider = tokenValidatorProvider;
}
/**
* Public method which would first get the routes and then get the quotes.
*
* @param tokenIn The token that the user wants to provide
* @param tokenOut The token that the usaw wants to receive
* @param amounts the list of amounts to query for EACH route.
* @param percents the percentage of each amount.
* @param quoteToken
* @param candidatePools
* @param tradeType
* @param routingConfig
* @param gasModel the gasModel to be used for estimating gas cost
* @param gasPriceWei instead of passing gasModel, gasPriceWei is used to generate a gasModel
*/
getRoutesThenQuotes(tokenIn, tokenOut, amount, amounts, percents, quoteToken, candidatePools, tradeType, routingConfig, gasModel, gasPriceWei) {
return this.getRoutes(tokenIn, tokenOut, candidatePools, tradeType, routingConfig).then((routesResult) => {
if (routesResult.routes.length == 1) {
util_1.metric.putMetric(`${this.protocol}QuoterSingleRoute`, 1, util_1.MetricLoggerUnit.Count);
percents = [100];
amounts = [amount];
}
if (routesResult.routes.length > 0) {
util_1.metric.putMetric(`${this.protocol}QuoterRoutesFound`, routesResult.routes.length, util_1.MetricLoggerUnit.Count);
}
else {
util_1.metric.putMetric(`${this.protocol}QuoterNoRoutesFound`, routesResult.routes.length, util_1.MetricLoggerUnit.Count);
}
return this.getQuotes(routesResult.routes, amounts, percents, quoteToken, tradeType, routingConfig, routesResult.candidatePools, gasModel, gasPriceWei);
});
}
async applyTokenValidatorToPools(pools, isInvalidFn) {
if (!this.tokenValidatorProvider) {
return pools;
}
util_1.log.info(`Running token validator on ${pools.length} pools`);
const tokens = lodash_1.default.flatMap(pools, (pool) => [pool.token0, pool.token1]);
const tokenValidationResults = await this.tokenValidatorProvider.validateTokens(tokens.map((token) => token.wrapped));
const poolsFiltered = lodash_1.default.filter(pools, (pool) => {
const token0Validation = tokenValidationResults.getValidationByToken(pool.token0.wrapped);
const token1Validation = tokenValidationResults.getValidationByToken(pool.token1.wrapped);
const token0Invalid = isInvalidFn(pool.token0, token0Validation);
const token1Invalid = isInvalidFn(pool.token1, token1Validation);
if (token0Invalid || token1Invalid) {
util_1.log.info(`Dropping pool ${(0, util_1.poolToString)(pool)} because token is invalid. ${pool.token0.symbol}: ${token0Validation}, ${pool.token1.symbol}: ${token1Validation}`);
}
return !token0Invalid && !token1Invalid;
});
return poolsFiltered;
}
}
exports.BaseQuoter = BaseQuoter;
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