传统账户密钥

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

定义发件人的地址和私人密钥

定义接收方的地址

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

创建价值转移交易，使用 toPeb 助手将金额从 KLAY 转换为 Peb

用发件人的钱包签署交易

将签署的交易发送至 kaia 网络

使用 web3.klay.recoverFromTransaction 从已签署的事务中恢复地址

SignTxWithLegacyExample.js

const { Web3, toPeb } = require("@kaiachain/web3js-ext");

const senderAddr = "0xb2ba72e1f84b7b8cb15487a2bf20328f2cf40c25";

const senderPriv = "0xebceaca693ea3740231be94f38af6090d3aded336725d26a09b7d14e8e485e1e";

const receiverAddr = "0xc40b6909eb7085590e1c26cb3becc25368e249e9";

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() {

let tx = {

from: senderAddr,

to: receiverAddr,

value: toPeb("0.01", "KLAY"),

};

const signResult = await senderAccount.signTransaction(tx);

console.log("signedTx", signResult.transactionHash);

const receipt = await web3.eth.sendSignedTransaction(signResult.rawTransaction);

console.log("receipt", receipt);

const sig = signResult.signature;

const addr2 = await web3.klay.recoverFromTransaction(senderAddr, sig, "latest");

console.log("recoveredAddr rpc", addr2, addr2.toLowerCase() === senderAddr);

}

main().catch(console.error);

output

❯ js SignTxWithLegacyExample.js

rawTx 0x08f87e05850ba43b740082cd1494c40b6909eb7085590e1c26cb3becc25368e249e98094b2ba72e1f84b7b8cb15487a2bf20328f2cf40c25f847f8458207f5a070d2c5f2dd52d6a3b7bba65594b2c875b8ce0473e16b06b43d5c2ec9ebfcd467a048af2fc51f75961a9cebfb1685b12d99db143bbd42a76f9c50970b807e1010b9

sentTx 0xecb117338d7a0e7e9444886ebdab5d0e14fd1b02fa476fee839a2fc3b105f391

receipt {

to: '0xC40B6909EB7085590E1c26Cb3beCC25368e249E9',

from: '0xb2ba72e1f84b7B8Cb15487A2bf20328F2cF40c25',

contractAddress: null,

transactionIndex: 1,

gasUsed: BigNumber { _hex: '0x5208', _isBigNumber: true },

logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',

blockHash: '0x7eae10aa2fcd3c42ac1705b63ad025f972a222bb71d65feeb0000d92c2e73732',

transactionHash: '0xecb117338d7a0e7e9444886ebdab5d0e14fd1b02fa476fee839a2fc3b105f391',

logs: [],

blockNumber: 152256170,

confirmations: 3,

cumulativeGasUsed: BigNumber { _hex: '0x029636', _isBigNumber: true },

effectiveGasPrice: BigNumber { _hex: '0x05d21dba00', _isBigNumber: true },

status: 1,

type: 0,

byzantium: true

}

recoveredAddr rpc 0xb2ba72e1f84b7b8cb15487a2bf20328f2cf40c25 true