utvoluptas
Version:
100 lines (99 loc) • 4.83 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.callContractFunc = exports.encodeFunctionCall = exports.decodeFunctionResult = void 0;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const web3_1 = __importDefault(require("web3"));
const sdk_1 = require("@hashgraph/sdk");
const logger_config_1 = require("./config/logger.config");
const constants_config_1 = require("./config/constants.config");
const web3 = new web3_1.default();
/**
* @description Decodes the result of a contract's function execution
* @param functionName the name of the function within the ABI
* @param resultAsBytes a byte array containing the execution result
*/
const decodeFunctionResult = (functionName, abiPath, resultAsBytes) => {
const abi = JSON.parse(fs.readFileSync(path.resolve(__dirname, abiPath), 'utf8'));
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const functionAbi = abi.find((func) => func.name === functionName);
const functionParameters = functionAbi.outputs;
const resultHex = '0x'.concat(Buffer.from(resultAsBytes).toString('hex'));
const result = web3.eth.abi.decodeParameters(functionParameters, resultHex);
return result;
};
exports.decodeFunctionResult = decodeFunctionResult;
/**
* @description Encodes a function call so that the contract's function can be executed or called
* @param functionName the name of the function to call
* @param parameters the array of parameters to pass to the function
*/
const encodeFunctionCall = (functionName, abiPath, parameters) => {
const abi = JSON.parse(fs.readFileSync(path.resolve(__dirname, abiPath), 'utf8'));
const functionAbi = abi.find(
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(func) => func.name === functionName && func.type === 'function');
const encodedParametersHex = web3.eth.abi
.encodeFunctionCall(functionAbi, parameters)
.slice(2);
return Buffer.from(encodedParametersHex, 'hex');
};
exports.encodeFunctionCall = encodeFunctionCall;
/**
* @description Wrapper around Hedera SDK ContractExecuteTransaction
* @param contractId: {ContractId} The contract on which to to call a function
* @param abiPath: {string} The path to the abi file of the contract
* @param funcName: {string} The function name of which to call on the contract
* @param funcParams: {string[]} The parameters of the function to be called
* @param keys: {PrivateKey[]} (optional) The keys required to sign the transaction
*/
const callContractFunc = async (contractId, abiPath, funcName, funcParams, client, gas = constants_config_1.MAX_GAS, keys = null) => {
try {
const tx = new sdk_1.ContractExecuteTransaction()
.setContractId(contractId)
.setFunctionParameters((0, exports.encodeFunctionCall)(funcName, abiPath, funcParams || []))
.setGas(gas)
.freezeWith(client);
if (keys) {
const promises = keys.map((key) => tx.sign(key));
await Promise.all(promises);
}
const response = await tx.execute(client);
const record = await response.getRecord(client);
if (!record || !record.contractFunctionResult || record.receipt.status._code !== sdk_1.Status.Success._code) {
throw new Error('ContractExecuteTransaction failed');
}
return (0, exports.decodeFunctionResult)(funcName, abiPath, record.contractFunctionResult.bytes);
}
catch (err) {
logger_config_1.logger.error(err);
return new Error('callContractFunc failed');
}
};
exports.callContractFunc = callContractFunc;