我正在尝试发送以太坊交易,该交易通过Node.JS将ERC20令牌发送给具有Ledger Nano S的用户,但是我无法成功签名并发送该交易。
首先,我通过ledgerhq API的方法signTransaction签署了该交易,然后对其进行签名,然后使用sendSignedTransaction将其发送到主网络。当我执行以下代码时,Ledger接收请求并显示交易详细信息。但是,按下Ledger的确认按钮后,控制台将返回错误“返回的错误:无效的签名:加密错误(无效的EC签名)”。
import AppEth from "@ledgerhq/hw-app-eth";
import TransportU2F from "@ledgerhq/hw-transport-u2f";
import TransportNodeHid from "@ledgerhq/hw-transport-node-hid";
import EthereumTx from "ethereumjs-tx"
const Web3 = require('web3');
import { addHexPrefix, bufferToHex, toBuffer } from 'ethereumjs-util';
const web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'));
var destAddresses = ['0xa6acFa18468786473269Dc1521fd4ff40F6481D9'];
var amount = 1000000000000;
var i=0;
var contract = new web3.eth.Contract([token contract ABI... ], '0x74a...');
const data1 = contract.methods.transfer(destAddresses[0], amount).encodeABI();
const exParams = {
gasLimit: 6e6,
gasPrice: 3e9,
from: '0x1A...',
data : data1,
to: '0x74a...',
value: '0x00',
nonce: "0x0",
chainId: 1,
v: "0x01",
r: "0x00",
s: "0x00"
}
async function makeSign(txParams) {
const tx = new EthereumTx(txParams);
const txHex = tx.serialize().toString("hex");
const signedTransaction = '0x' + txHex;
let transport;
try {
transport = await TransportNodeHid.create();
let eth2 = new AppEth(transport);
const result = await eth2.signTransaction("m/44'/60'/0'/0", txHex).then(result => {
web3.eth.sendSignedTransaction('0x' + txHex)
.then(res => {
console.log(res);
}).catch(err => {
console.log('sendSignedTransaction');
console.log(err);
});
}).catch(err => {
console.log('signTransaction');
console.log(err);
});
txParams.r = `0x${result.r, 'hex'}`;
txParams.s = `0x${result.s, 'hex'}`;
txParams.v = `0x${result.v, 'hex'}`;
return result;
} catch (e) {
console.log(e);
}
}
makeSign(exParams).then(function () {
console.log("Promise Resolved2");
}.catch(function () {
console.log("Promise Rejected2");
});
当我仅使用signTransaction函数时,我可以在分类帐设备中确认交易并在控制台上返回txhash。但是,最终我想将交易广播到主网。你能给我个主意吗?我需要任何反馈。另外,如果有使用分类帐创建和广播原始交易的示例,请通知我。
答案 0 :(得分:1)
您的代码已将交易发送到网络。但是,仅等待“发送”承诺只会给您交易哈希,而不是收据。您需要将其视为事件发射器,然后等待“确认”事件。
const serializedTx = tx.serialize();
web3.eth.sendSignedTransaction(serializedTx.toString('hex'))
.once('transactionHash', hash => console.log('Tx hash', hash))
.on('confirmation', (confNumber, receipt) => {
console.log(`Confirmation #${confNumber}`, receipt);
})
.on('error', console.error);
要按照您的说明将其发送到主网,您可以在端口8545上运行本地geth节点并使用您的代码,或者将web3指向infura或类似名称。