app.js的完整内容,如下所示:
var Tx = require('ethereumjs-tx').Transaction
const Web3 = require('web3')
const web3 = new Web3('https://ropsten.infura.io/v3/YOUR_INFURA_API_KEY')
const account1 = '0xf4Ab5314ee8d7AA0eB00b366c52cEEccC62d****' // Your account address 1
const account2 = '0xff96B8B43ECd6C49805747F94747bFfa3A96****' // Your account address 2
const pk1 = 'b75e2bcaec74857cf9bb6636d66a04784d4c0fcfd908f4a2bc213428eba5****' // 实际项目中应该从process.env.PRIVATE_KEY_1中读取
const pk2 = 'ac0adfdbaeb0770a479e79aac78779d82fdc2f9262e0c8f751ae70fb63ef****' // 实际项目中应该从process.env.PRIVATE_KEY_2中读取
const privateKey1 = Buffer.from(pk1, 'hex')
const privateKey2 = Buffer.from(pk2, 'hex')
web3.eth.getTransactionCount(account1, (err, txCount) => {
// 创建交易对象
const txObject = {
nonce: web3.utils.toHex(txCount),
to: account2,
value: web3.utils.toHex(web3.utils.toWei('0.1', 'ether')),
gasLimit: web3.utils.toHex(21000),
gasPrice: web3.utils.toHex(web3.utils.toWei('10', 'gwei'))
}
// 签署交易
const tx = new Tx(txObject, { chain: 'ropsten', hardfork: 'petersburg' })
tx.sign(privateKey1)
const serializedTx = tx.serialize()
const raw = '0x' + serializedTx.toString('hex')
// 广播交易
web3.eth.sendSignedTransaction(raw, (err, txHash) => {
console.log('txHash:', txHash)
// 可以去ropsten.etherscan.io查看交易详情
})
})
运行app.js:
$ node app
输出
txHash: 0x4167cc0e35a750032be89f3c319026a5e7b2f0f93ac5c659a660e85a88053edf
可以去etherscan,查看交易详情,如下图所示: