公共账户密钥

AccountKeyPublic 用于有一个公钥的账户。如果账户有一个 AccountKeyPublic 对象，交易验证过程如下：

导入**@kaiachain/web3js-ext**软件包，在 web3 上添加 kaia 功能

定义要更改的发件人地址、发件人私人密钥和新私人密钥

使用指定的 kairos 测试网 URL 设置提供程序。 web3js 中的提供者是访问区块链数据的只读抽象。

此外，您还可以将提供商 URL 从 kairos 更改为 quicknode

使用提供程序定义Web3 实例

用私钥和提供者创建发件人钱包

用新私钥计算公钥

声明一个事务，其类型为 账户密钥类型.公钥，密钥字段为新计算的公钥。

用发件人的钱包签署交易

向区块链发送已签名的 tx。它将返回交易的收据

AccountUpdateWithPubKey.js


const { Web3, TxType, AccountKeyType, toPeb, getPublicKeyFromPrivate } = require("@kaiachain/web3js-ext");
// Using senderPriv == senderNewPriv to execute this example repeatedly.
// But you might want to register a different private key.
const senderAddr = "0xfb60ded0ae96fe04eed6450aead860aa9d57128e";
const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
const senderNewPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
const provider = new Web3.providers.HttpProvider("https://public-en-kairos.node.kaia.io");
const web3 = new Web3(provider);
const senderAccount = web3.eth.accounts.privateKeyToAccount(senderPriv);
async function main() {
  const senderNewPub = getPublicKeyFromPrivate(senderNewPriv);
  console.log({ senderNewPub });
  const tx = {
    type: TxType.AccountUpdate,
    from: senderAddr,
    key: {
      type: AccountKeyType.Public,
      key: senderNewPub,
    }
  };
  const signResult = await senderAccount.signTransaction(tx);
  console.log("signedTx", signResult.transactionHash);
  const receipt = await web3.eth.sendSignedTransaction(signResult.rawTransaction);
  console.log("receipt", receipt);
}
main().catch(console.error);

output


❯ js AccountUpdateWithPubKey.js
pub 0x03dc9dccbd788c00fa98f7f4082f2f714e799bc0c29d63f04d48b54fe6250453cd
sentTx 0x33a634875a49d8915bc6fde14f351b81d1fc470b64aef28bf95d3ea92f2dc4f7
receipt {
  to: '0xe15Cd70A41dfb05e7214004d7D054801b2a2f06b',
  from: '0xe15Cd70A41dfb05e7214004d7D054801b2a2f06b',
  contractAddress: null,
  transactionIndex: 1,
  gasUsed: BigNumber { _hex: '0xa028', _isBigNumber: true },
  logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  blockHash: '0xb385b18c2e96c36e7fbbeb121cf2a48c0bb15f1a7af2f2969b133236ff7a14ea',
  transactionHash: '0x33a634875a49d8915bc6fde14f351b81d1fc470b64aef28bf95d3ea92f2dc4f7',
  logs: [],
  blockNumber: 152203491,
  confirmations: 2,
  cumulativeGasUsed: BigNumber { _hex: '0x02e456', _isBigNumber: true },
  effectiveGasPrice: BigNumber { _hex: '0x05d21dba00', _isBigNumber: true },
  status: 1,
  type: 0,
  byzantium: true
}