web3.js 交易小结
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 = '0xf4Ab5314ee8d7AA0eB00b366c52cEEccC62d6B4B' // Your account address 1 const account2 = '0xff96B8B43ECd6C49805747F94747bFfa3A960b69' // Your account address 2const pk1 = 'b75e2bcaec74857cf9bb6636d66a04784d4c0fcfd908f4a2bc213428eba5af0d' // 实际项目中应该从process.env.PRIVATE_KEY_1中读取 const pk2 = 'ac0adfdbaeb0770a479e79aac78779d82fdc2f9262e0c8f751ae70fb63ef6196' // 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: