ETH 钱包开发

账户生成

• 公钥私钥

const randomAccount = web3.eth.accounts.wallet.create(1);

• 助记词

const { Wallet } = require('ethers');

// 创建随机钱包并输出助记词和地址
const randomWallet = Wallet.createRandom();
console.log('助记词:', randomWallet.mnemonic.phrase);
console.log('地址:', randomWallet.address);
console.log('私钥:', randomWallet.privateKey);

助记词: brisk light news girl gold arrest tomato spare chimney around twist change
地址: 0xA6BF9BDCA11D9c0955892ba3E87a832827253694
私钥: 0xee60c1b32a5a16dfc49c2efedc8d0e7014d2a1fc4b4e5594e1ca1639260796ae

交易信息

• 获取资金

const address = "0xfb0bc05F1aC61a566E70890e0e000E66F147ae66";

web3.eth
  .getBalance(address)
  .then((balance) => {
    console.log("Balance:", web3.utils.fromWei(balance, "ether"), "ETH");
  })
  .catch((err) => {
    console.error(err);
  });

• 发送交易

async function sendTransaction() {
  const fromAddress = "0xfb0bc05F1aC61a566E70890e0e000E66F147ae66";
  const privateKey = "";
  // 获取当前交易计数 (nonce)
  const nonce = await web3.eth.getTransactionCount(fromAddress, "latest");
  // 设置交易参数
  const tx = {
    from: fromAddress,
    to: "0x9Ae9119e614BEdffbd0B66756Cf2F4F4CFdb7ca9",
    value: web3.utils.toWei("0.1", "ether"), // 发送 0.1 ETH
    gas: 21000, // 用于简单的 ETH 转账
    gasPrice: await web3.eth.getGasPrice(), // 获取当前网络的 gas 价格
    nonce: nonce,
  };
  // 签名交易
  const signedTx = await web3.eth.accounts.signTransaction(tx, privateKey);

  // 发送已签名的交易
  web3.eth
    .sendSignedTransaction(signedTx.rawTransaction)
    .on("receipt", (receipt) => {
      console.log("交易成功:", receipt);
    })
    .on("error", (err) => {
      console.error("交易失败:", err);
    });
}

账户恢复

• 私钥恢复

const accountFromPrivateKey =
  web3.eth.accounts.privateKeyToAccount("privateKey");

• 助记词恢复

// 引入 ethers.js 库
const { Wallet } = require("ethers");

// 助记词（通常由 12 或 24 个单词组成）
const mnemonic =
  "brisk light news girl gold arrest tomato spare chimney around twist change";

// 使用助记词恢复钱包
const wallet = Wallet.fromPhrase(mnemonic);

// 输出钱包的地址和私钥
console.log("地址:", wallet.address);
console.log("私钥:", wallet.privateKey);

地址: 0xa6bf9bdca11d9c0955892ba3e87a832827253694;
私钥: 0xee60c1b32a5a16dfc49c2efedc8d0e7014d2a1fc4b4e5594e1ca1639260796ae;