simple-sushiswap-sdk
Version:
Simple easy to understand SDK for sushiswap
80 lines (79 loc) • 3.92 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TokensFactory = void 0;
const ethereum_multicall_1 = require("ethereum-multicall");
const contract_context_1 = require("../../common/contract-context");
const error_codes_1 = require("../../common/errors/error-codes");
const sushiswap_error_1 = require("../../common/errors/sushiswap-error");
class TokensFactory {
constructor(_ethersProvider) {
this._ethersProvider = _ethersProvider;
this._multicall = new ethereum_multicall_1.Multicall({
ethersProvider: this._ethersProvider.provider,
});
}
/**
* Get the tokens details
*/
getTokens(tokenContractAddresses) {
return __awaiter(this, void 0, void 0, function* () {
try {
const SYMBOL = 0;
const DECIMALS = 1;
const NAME = 2;
const contractCallContexts = [];
for (let i = 0; i < tokenContractAddresses.length; i++) {
const contractCallContext = {
reference: `token${i}`,
contractAddress: tokenContractAddresses[i],
abi: contract_context_1.ContractContext.erc20Abi,
calls: [
{
reference: `symbol`,
methodName: 'symbol',
methodParameters: [],
},
{
reference: `decimals`,
methodName: 'decimals',
methodParameters: [],
},
{
reference: `name`,
methodName: 'name',
methodParameters: [],
},
],
};
contractCallContexts.push(contractCallContext);
}
const contractCallResults = yield this._multicall.call(contractCallContexts);
const tokens = [];
for (const result in contractCallResults.results) {
const tokenInfo = contractCallResults.results[result];
tokens.push({
chainId: this._ethersProvider.network().chainId,
contractAddress: tokenInfo.originalContractCallContext.contractAddress,
symbol: tokenInfo.callsReturnContext[SYMBOL].returnValues[0],
decimals: tokenInfo.callsReturnContext[DECIMALS].returnValues[0],
name: tokenInfo.callsReturnContext[NAME].returnValues[0],
});
}
return tokens;
}
catch (error) {
throw new sushiswap_error_1.SushiswapError('invalid from or to contract tokens', error_codes_1.ErrorCodes.invalidFromOrToContractToken);
}
});
}
}
exports.TokensFactory = TokensFactory;