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我正在尝试编写一个保存私钥并签署交易的服务器。我使用 ethereumjs-wallet/hdkey 生成帐户和私钥,使用 ethereumjs-tx 签署交易,使用 Httprovider 发送交易的 web3js。

不幸的是,当我尝试发送交易时,我总是收到错误消息“超过块气体限制”(即使我将我的 gasLimit 设置为 21000,远低于我的 ganache-cli 实例的块气体限制)。

我怀疑原始编码交易的格式错误。

任何想法实际问题是什么以及如何解决它?

干杯

const hdkey = require('ethereumjs-wallet/hdkey');
const Transaction = require('ethereumjs-tx');
const walletHdpath = "m/44'/60'/0'/0/";
const hdwallet = hdkey.fromMasterSeed(bip39.mnemonicToSeed(process.env.KEYSTORE_SEED));
const web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));

async function generateAccount() {
        const wallet = hdwallet.derivePath(walletHdpath + nextAccountIndex).getWallet();
        nextAccountIndex += 1;
        const addr = '0x' + wallet.getAddress().toString('hex');
        accounts[addr] = wallet;

        await fundAccount(addr);

        return addr;
}

async function fundAccount(address) {
    const txParams = {
        gasPrice: '20000000000',
        gasLimit: '21000',
        from: process.env.KEYSTORE_ADDRESS_0,
        to: address,
        value: web3.utils.toWei('0.1', 'ether'),
        data: ''
      }

      const signed = signTransaction(txParams);

      // this line throws exception: "exceeds block gas limit"
      await web3.eth.sendSignedTransaction(signed.signed_transaction);
}

function signTransaction(txParams) {
    const from = txParams.from.toLowerCase();
    const wallet = accounts[from];
    if (wallet === undefined) {
        return {sucess: false, message: "unknown from account" }
    } 

    const tx = new Transaction(txParams);
    const pkey = wallet.getPrivateKey();
    tx.sign(pkey);
    const rawTx = '0x' + tx.serialize().toString('hex');

    return { success: true, signed_transaction: rawTx }
}

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1 回答 1

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问题是 txParams 中的值需要进行十六进制编码并以 0x 为前缀

于 2019-02-11T20:05:33.563 回答