index.js

console.clear();
require("dotenv").config();
const {
	AccountId,
	PrivateKey,
	Client,
	FileCreateTransaction,
	ContractCreateTransaction,
	ContractFunctionParameters,
	ContractExecuteTransaction,
	ContractCallQuery,
	Hbar,
	ContractCreateFlow,
} = require("@hashgraph/sdk");
const fs = require("fs");

// Configure accounts and client
const operatorId = AccountId.fromString(process.env.OPERATOR_ID);
const operatorKey = PrivateKey.fromStringED25519(process.env.OPERATOR_PVKEY);

const client = Client.forTestnet().setOperator(operatorId, operatorKey);

async function main() {
	// Import the compiled contract bytecode
	const contractBytecode = fs.readFileSync("LookupContract_sol_LookupContract.bin");

	// Instantiate the smart contract
	const contractInstantiateTx = new ContractCreateFlow()
		.setBytecode(contractBytecode)
		.setGas(200000)
		.setConstructorParameters(new ContractFunctionParameters().addString("Alice").addUint256(111111));
	const contractInstantiateSubmit = await contractInstantiateTx.execute(client);
	const contractInstantiateRx = await contractInstantiateSubmit.getReceipt(client);
	const contractId = contractInstantiateRx.contractId;
	const contractAddress = contractId.toSolidityAddress();
	console.log(`- The smart contract ID is: ${contractId} \n`);
	console.log(`- The smart contract ID in Solidity format is: ${contractAddress} \n`);

	// Query the contract to check changes in state variable
	const contractQueryTx = new ContractCallQuery()
		.setContractId(contractId)
		.setGas(100000)
		.setFunction("getMobileNumber", new ContractFunctionParameters().addString("Alice"));
	const contractQuerySubmit = await contractQueryTx.execute(client);
	const contractQueryResult = contractQuerySubmit.getUint256(0);
	console.log(`- Here's the phone number that you asked for: ${contractQueryResult} \n`);

	// Call contract function to update the state variable
	const contractExecuteTx = new ContractExecuteTransaction()
		.setContractId(contractId)
		.setGas(100000)
		.setFunction("setMobileNumber", new ContractFunctionParameters().addString("Bob").addUint256(222222));
	const contractExecuteSubmit = await contractExecuteTx.execute(client);
	const contractExecuteRx = await contractExecuteSubmit.getReceipt(client);
	console.log(`- Contract function call status: ${contractExecuteRx.status} \n`);

	// Query the contract to check changes in state variable
	const contractQueryTx1 = new ContractCallQuery()
		.setContractId(contractId)
		.setGas(100000)
		.setFunction("getMobileNumber", new ContractFunctionParameters().addString("Bob"));
	const contractQuerySubmit1 = await contractQueryTx1.execute(client);
	const contractQueryResult1 = contractQuerySubmit1.getUint256(0);
	console.log(`- Here's the phone number that you asked for: ${contractQueryResult1} \n`);
}
main();