web3Interactive/reference/demo/contract_interaction/contract_monad.mjs

import { ethers } from 'ethers';

// Monad 测试网 RPC URL
const providerUrl = 'https://testnet-rpc.monad.xyz';
const provider = new ethers.JsonRpcProvider(providerUrl);

// 钱包私钥
const privateKey = '0x3991542110242368f4770716be904b0ca6d44a8dbe4501771833b1a3642198d1';
const wallet = new ethers.Wallet(privateKey, provider);

// 质押合约地址
const stakingContractAddress = '0x2c9c959516e9aaedb2c748224a41249202ca8be7';

// 质押 $MON
async function stakeMon() {
    try {
        // 检查原生代币余额
        const balance = await provider.getBalance(wallet.address);
        console.log('Native balance:', ethers.formatEther(balance));

        // 质押金额
        const amountToStake = ethers.parseEther('0.0001'); // 0.0001 原生代币
        if (balance < amountToStake) {
            throw new Error('Insufficient balance for staking');
        }

        // 低级调用，发送交易
        const tx = await wallet.sendTransaction({
            to: stakingContractAddress,
            value: amountToStake,
            data: '0xd5575982', // 函数选择器
            gasLimit: 100000,
            gasPrice: ethers.parseUnits('50', 'gwei')
        });
        console.log('Stake transaction hash:', tx.hash);

        // 等待交易确认
        const receipt = await tx.wait();
        console.log('Stake transaction receipt:', receipt);
    } catch (error) {
        console.error('Error staking $MON:', error);
    }
}

// 调用质押函数
stakeMon();