test-Hedrea-JS-SDK

JavaScript code for test Hedrea SDK

This package is just deploy one simple smart contract generated by the following Solidity code:

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

contract HelloWorld {

function sayHello() public pure returns (string memory) {

    return "Hello World";
}

}

But trying to deploy the generated bytecode seems not easy. The current Hedra JS SDK version is: 2.35.0 My Node.js version: 20.5.0 My OS: Window 10 (22H2)

But the following AccountBalance.js code works:

const { AccountBalanceQuery, LocalProvider, Wallet } = require("@hashgraph/sdk"); const dotenv = require("dotenv");

dotenv.config();

async function main() { if (process.env.OPERATOR_ID == null || process.env.OPERATOR_KEY == null) { throw new Error( "Environment variables OPERATOR_ID, and OPERATOR_KEY are required." ); }

const wallet = new Wallet(
    process.env.OPERATOR_ID,
    process.env.OPERATOR_KEY,
    new LocalProvider()
);

const balance = await new AccountBalanceQuery()
    .setAccountId(wallet.getAccountId())
    .executeWithSigner(wallet);

console.log(
    `${wallet
        .getAccountId()
        .toString()} balance = ${balance.hbars.toString()}`
);

}

void main();

setTimeout(() => { process.exit(0); }, 3000);

The result of running AccountBalance.js: PS D:\nodejs\hedra-project> node .\AccountBalance.js 0.0.4470974 balance = 10000 ℏ PS D:\nodejs\hedra-project>