251 lines
8.1 KiB
JavaScript
251 lines
8.1 KiB
JavaScript
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const express = require('express');
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const {Web3} = require('web3');
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const axios = require('axios');
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const cors = require('cors');
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const bip39 = require('bip39');
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const util = require('ethereumjs-util');
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const {hdkey} = require('ethereumjs-wallet');
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const BSCSCAN_API_KEY = '1UQ3PHID4UJUDTVD4EJK35PZB8XDKS7K9T';
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const app = express();
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const web3 = new Web3('https://bsc-dataseed1.binance.org:443');
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//便用cor5中间件
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app.use(cors());
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// 你的 BNB 钱包地址
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// const BNB_WALLET_ADDRESS = '0x2335070d3FA557aAcD5F762903b050d0A358b421';
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// BNB 合约地址
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const BNB_CONTRACT_ADDRESS = '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c';
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// USDT 合约地址
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const USDT_CONTRACT_ADDRESS = '0x55d398326f99059fF775485246999027B3197955';
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// USDT 合约 ABI
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const USDT_ABI = [
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{
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"constant": true,
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"inputs": [{"name": "_owner", "type": "address"}],
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"name": "balanceOf",
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"outputs": [{"name": "", "type": "uint256"}],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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}
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];
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// 获取钱包地址
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app.get('/generateWords', async (req, res) => {
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try {
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const mnemonic = await generateWordsOptions();
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res.json(mnemonic);
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} catch (error) {
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res.status(500).json({ error: error.message });
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}
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});
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//获取已有钱包地址
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app.get('/getMoneyList', async (req, res) => {
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try {
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const mnemonic = req.query.mnemonic;
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const moneyInfo = await getMoneyInfos(mnemonic);
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res.json(moneyInfo);
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} catch (error) {
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res.status(500).json({ error: error.message });
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}
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});
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//根据助记词获取已有钱包地址
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function getMoneyInfos(mnemonic){
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const seed = bip39.mnemonicToSeedSync(mnemonic);
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const hdwallet = hdkey.fromMasterSeed(seed);
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const wallet = hdwallet.derivePath(`m/44'/60'/0'/0/0`).getWallet();
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const address = `0x${wallet.getAddress().toString('hex')}`;
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const privateKey = wallet.getPrivateKey().toString('hex');
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const userMoneyInfo = {
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address,
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privateKey
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};
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return userMoneyInfo
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}
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//生成钱包地址
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function generateWordsOptions(){
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const mnemonic = bip39.generateMnemonic();
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let name=mnemonic.split(" ");
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let max=100;
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let min=0;
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let rand = Math.floor(Math.random() * (max - min + 1) ) + min;
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let seedBuffer = bip39.mnemonicToSeedSync(mnemonic,"");
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let hdWallet = hdkey.fromMasterSeed(seedBuffer);
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let key = hdWallet.derivePath("m/44'/60'/0'/0/0");
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let privateKey = util.bufferToHex(key._hdkey._privateKey);
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let publicKey = util.bufferToHex(key._hdkey._publicKey);
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let address = util.pubToAddress(key._hdkey._publicKey, true);
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address = util.toChecksumAddress("0x"+address.toString('hex'));
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let wallet={
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mnemonic,
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publicKey,
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privateKey,
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address,
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type:"Ethereum"
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}
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return wallet
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}
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// BNB的交易转账
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app.get('/transfer', async (req, res) => {
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// const { from_addr, siyao, to_addr, coin } = req.body;
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const from_addr = req.query.from_addr;
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const to_addr = req.query.to_addr;
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const coin = req.query.coin;
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const siyao = req.query.siyao;
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try {
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// 转账金额（以 wei 为单位）
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const amount = web3.utils.toWei(coin + '', 'ether'); // 这里以 Gwei 为单位
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// 获取当前 gasPrice
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const gasPrice = await web3.eth.getGasPrice();
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// 创建转账交易对象
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const transactionObject = {
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from: from_addr,
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to: to_addr,
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value: amount,
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gas: 21000, // 假设固定 gas 为 21000
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gasPrice: gasPrice // 使用当前 gasPrice
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};
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// 签名交易
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const signedTx = await web3.eth.accounts.signTransaction(transactionObject, siyao);
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// 发送已签名的交易
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const receipt = await web3.eth.sendSignedTransaction(signedTx.rawTransaction);
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res.status(200).json({ success: true });
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} catch (error) {
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res.status(500).json({ success: false, error: error.message });
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}
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});
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// USDT的交易转账
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async function qukuailian(from_addr, to_addr, coin, siyao) {
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try {
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const web3 = new Web3('https://bsc-dataseed1.binance.org:443');
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const USDT_CONTRACT_ADDRESS = '0x55d398326f99059fF775485246999027B3197955';
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const usdtContractABI = [{
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"constant": false,
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"inputs": [{
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"name": "_to",
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"type": "address"
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},
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{
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"name": "_value",
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"type": "uint256"
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}
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],
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"name": "transfer",
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"outputs": [{
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"name": "",
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"type": "bool"
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}],
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"type": "function"
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}];
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const usdtContract = new web3.eth.Contract(usdtContractABI, USDT_CONTRACT_ADDRESS);
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const recipientAddress = to_addr;
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const amountToSend = Number(coin) * 10 ** 18;
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const txCount = await web3.eth.getTransactionCount(from_addr);
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const txObject = {
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from: from_addr,
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to: USDT_CONTRACT_ADDRESS,
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gasPrice: web3.utils.toHex(await web3.eth.getGasPrice()), // 使用区块链当前的 gas 价格
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gasLimit: web3.utils.toHex(210000), // 设置一个适当的 gasLimit
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value: '0', // 设置交易的价值为 0（因为我们使用 BNB 作为 gas 费）
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data: usdtContract.methods.transfer(recipientAddress, amountToSend).encodeABI(),
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nonce: web3.utils.toHex(txCount)
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};
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console.log(web3.utils.toHex(await web3.eth.getGasPrice()),'gas费')
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const signedTx = await web3.eth.accounts.signTransaction(txObject, siyao);
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const receipt = await web3.eth.sendSignedTransaction(signedTx.rawTransaction); //交易成功
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return receipt;
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} catch (error) {
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throw error;//交易失败
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}
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}
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// 处理区块链打款请求
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app.get('/qukuailian', async (req, res) => {
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const from_addr = req.query.from_addr;
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const to_addr = req.query.to_addr;
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const coin = req.query.coin;
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const siyao = req.query.siyao;
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try {
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const receipt = await qukuailian(from_addr, to_addr, coin, siyao);
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res.json({ success: true });
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} catch (error) {
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res.status(500).json({ success: false, error: error.message });
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}
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});
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// 获取指定地址的交易历史记录
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async function getTransactions(address) {
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try {
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// 使用 BSCScan API 获取交易记录
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const response = await axios.get('https://api.bscscan.com/api', {
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params: {
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module: 'account',
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action: 'tokentx',
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contractaddress: USDT_CONTRACT_ADDRESS,
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address: address,
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apikey: BSCSCAN_API_KEY,
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sort: 'desc' // 按时间降序排序
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}
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});
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// 处理 API 响应
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if (response.data.status === '1') {
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const transactions = response.data.result;
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return transactions;
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} else {
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throw new Error(response.data.message);
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}
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} catch (error) {
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return [];
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}
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};
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// 获取历史记录的接口
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app.get('/transactions', async (req, res) => {
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const address = req.query.address;
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try {
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const transactions = await getTransactions(address);
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res.json(transactions);
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} catch (error) {
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res.status(500).json({ error: error.message });
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}
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});
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// 获取余额的路由
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app.get('/balances', async (req, res) => {
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const address = req.query.address;// 钱包地址
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try {
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// 获取 BNB 钱包余额
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const bnbBalanceWei = await web3.eth.getBalance(address);
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const bnbBalance = web3.utils.fromWei(bnbBalanceWei.toString(), 'ether');
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// 获取 USDT 代币余额
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const usdtContract = new web3.eth.Contract(USDT_ABI, USDT_CONTRACT_ADDRESS);
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const usdtBalance = await usdtContract.methods.balanceOf(address).call();
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res.json({
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bnbBalance: bnbBalance,
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usdtBalance: usdtBalance.toString()
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});
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} catch (error) {
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res.status(500).json({ error: 'An error occurred' });
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}
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});
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// 启动服务器
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const PORT = process.env.PORT || 3000;
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app.listen(PORT, () => {
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console.log(`Server running on port ${PORT}`);
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});
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