50 lines
2.5 KiB
JavaScript
50 lines
2.5 KiB
JavaScript
"use strict";
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.TokenPriceOracle = void 0;
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const ethers_1 = require("ethers");
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const contracts_1 = require("./contracts");
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const constants_1 = require("./constants");
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const multicall_1 = require("./multicall");
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const providers_1 = require("./providers");
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class TokenPriceOracle {
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constructor(netId, rpcUrl, config) {
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const { offchainOracleContract } = config;
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this.provider = (0, providers_1.getProvider)(netId, rpcUrl, config);
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this.multicall = contracts_1.Multicall__factory.connect(constants_1.multiCallAddress, this.provider);
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if (offchainOracleContract) {
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this.oracle = contracts_1.OffchainOracle__factory.connect(offchainOracleContract, this.provider);
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}
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}
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fetchPrices(tokens) {
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return __awaiter(this, void 0, void 0, function* () {
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// setup mock price for testnets
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if (!this.oracle) {
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return new Promise((resolve) => resolve(tokens.reduce((acc, _, index) => {
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acc[tokens[index].symbol] = (0, ethers_1.parseEther)('0.0001').toString();
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return acc;
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}, {})));
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}
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const prices = (yield (0, multicall_1.multicall)(this.multicall, tokens.map(({ tokenAddress }) => ({
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contract: this.oracle,
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name: 'getRateToEth',
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params: [tokenAddress, true],
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}))));
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return prices.reduce((acc, price, index) => {
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const tokenPriceInwei = (price * BigInt(10 ** tokens[index].decimals)) / BigInt(10 ** 18);
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acc[tokens[index].symbol.toLowerCase()] = tokenPriceInwei.toString();
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return acc;
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}, {});
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});
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}
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}
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exports.TokenPriceOracle = TokenPriceOracle;
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//# sourceMappingURL=tokenPriceOracle.js.map
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