import { ethers } from "ethers";

// provider
const connection = ""; //rpc
const provider = new ethers.providers.JsonRpcProvider(connection);

// Tx-Hash
const txHash = "";

// 获取交易信息
const transaction = await provider.getTransaction(txHash);
// console.log(`transaction => `,transaction); //打印交易详情

// txData 对象内的字段缺一不可
const txData = {
    // gasPrice: transaction.gasPrice, // 这个不需要，否则会报错
    gasLimit: transaction.gasLimit,  
    value: transaction.value,
    nonce: transaction.nonce,
    data: transaction.data,  
    to: transaction.to, 
    chainId: transaction.chainId,
    type: transaction.type,
    maxFeePerGas: transaction.maxFeePerGas,
    maxPriorityFeePerGas: transaction.maxPriorityFeePerGas,
}

// 对txData交易对象序列化为其原始二进制格式
const signingData = ethers.utils.serializeTransaction(txData);

// 对序列化后的交易对象进行hash
const msgHash = ethers.utils.keccak256(signingData);

// 获取交易详情中的 r s v
const signature = {r: transaction.r, s: transaction.s, v: transaction.v};

// 获取原生未压缩的公钥，即 0x04 开头的
let rawPublicKey = ethers.utils.recoverPublicKey(msgHash, signature);
console.log(`未压缩公钥:\n ${rawPublicKey}`);

// 把开头的 0x04 字段删掉 ===》 将 `0x04` 替换成 `0x`
rawPublicKey = `0x${rawPublicKey.slice(4)}`;
console.log(`经压缩公钥:\n ${rawPublicKey}`);

// 公钥转钱包地址
let address = ethers.utils.keccak256(rawPublicKey);
console.log(`Address:\n 0x${address.slice(address.length - 40)}`);