web3Interactive/reference/test/test_contract_monad.mjs

import { ethers } from 'ethers';

const providerUrl = 'https://testnet-rpc.monad.xyz';
const provider = new ethers.JsonRpcProvider(providerUrl);
const privateKeyList = [
    '2a185eae14ca82ac934a5f952e12e0d4a64043c911c33a19afd48ef1a1d70c46',
    // Add more private keys here
    // 'your_second_private_key',
    // 'your_third_private_key',
];
const stakingContractAddress = '0xcBE623D259261FFa0CFAff44484bFF46c1b7D6c2';

// Function to generate random delay between 5-10 seconds
const getRandomDelay = () => {
    return Math.floor(Math.random() * (10000 - 5000 + 1)) + 5000;
};

// Function to handle staking for a single wallet
async function stakeMon(wallet) {
    try {
        const balance = await provider.getBalance(wallet.address);
        console.log(`Wallet ${wallet.address} balance:`, ethers.formatEther(balance));
        const amountToStake = ethers.parseEther('0');
        if (balance < amountToStake) {
            throw new Error(`Insufficient balance for staking in wallet ${wallet.address}`);
        }

        const tx = await wallet.sendTransaction({
            to: stakingContractAddress,
            value: amountToStake,
            data: '0x7ab71841',
            gasLimit: 1000000,
            gasPrice: ethers.parseUnits('52', 'gwei')
        });
        console.log(`Stake transaction hash for ${wallet.address}:`, tx.hash);
        const receipt = await tx.wait();
        console.log(`Stake transaction receipt for ${wallet.address}:`, receipt);
    } catch (error) {
        console.error(`Error staking $MON for ${wallet.address}:`, error);
    }
}

// Function to process all wallets with delay
async function processAllWallets() {
    for (const privateKey of privateKeyList) {
        const wallet = new ethers.Wallet(privateKey, provider);
        await stakeMon(wallet);
        
        // Add random delay between 5-10 seconds, except for the last wallet
        if (privateKey !== privateKeyList[privateKeyList.length - 1]) {
            const delay = getRandomDelay();
            console.log(`Waiting ${delay/1000} seconds before next wallet...`);
            await new Promise(resolve => setTimeout(resolve, delay));
        }
    }
}

processAllWallets();