bitcooo/utils/EthUtil.js

import abi from './EthAbi.js'
const Web3 = require('web3');
var Tx = require('ethereumjs-tx');
let web3;
web3 = new Web3(new Web3.providers.HttpProvider("https://http-mainnet-node.huobichain.com"));

let eth = {
	//获取主币eth余额
	getBalance: async function(address, type) {
		let balance = await web3.eth.getBalance(address);
		console.log("余额：",balance)
		return Number(balance) / Math.pow(10, 18);
	},
	//获取eth代币币余额
	getTokenBalance: async function(address, contract) {
		var myContract = new web3.eth.Contract(abi, contract, {
			from: address
		});
		var decimals = await myContract.methods.decimals().call();
		var balance = await myContract.methods.balanceOf(address).call();

		return Number(balance) / Math.pow(10, decimals);
	},
	getGas: async function() {
		const gasPrice = await web3.eth.getGasPrice().then((v) => {
			return v
		});

		return Number(nubmerJs.strip(gas * gasPrice / 10 ** 18).toFixed(6))
	},
	transaction: async function(fromAddress, toAddress, value, privateKey, success) {

		var nonce = await web3.eth.getTransactionCount(fromAddress);
		var gas = await web3.eth.estimateGas({
			from: fromAddress
		});
		console.log(11111111111)
		console.log(nonce)
		console.log(fromAddress, toAddress, value, privateKey)
		var txData = {
			chainId: web3.utils.toHex(1899),
			// nonce每次++，以免覆盖之前pending中的交易
			nonce: web3.utils.toHex(nonce++),
			// 设置gasLimit和gasPrice
			gas: web3.utils.toHex(gas),
			gasPrice: web3.utils.toHex(web3.eth.getGasPrice()),
			// 要转账的哪个账号  
			to: toAddress,
			// 从哪个账号转
			from: fromAddress,
			// 0.001 以太币
			value: web3.utils.toHex(web3.utils.toWei(value, 'ether'))
		}



		// 引入私钥，并转换为16进制

		// 用私钥签署交易
		console.log(Buffer.from(privateKey).toString('hex'))
		const tx = new Tx(txData);
		tx.sign(Buffer.from(privateKey, 'hex'));

		// 序列化
		var serializedTx = tx.serialize().toString('hex');

		web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex'), function(err,
			hash) {
			console.log('hash' + hash)
			if (!err) {
				success(hash, undefined);
			} else {
				console.log(err,789798)
				success(undefined, err);
			}
		});
		// 获取交易数据




	},
	sendTokenTransaction: async function(fromAddress, toAddress, value, privateKey, contract, success) {

		var nonce = await web3.eth.getTransactionCount(fromAddress);
		var gas = await web3.eth.estimateGas({
			from: fromAddress
		});

		console.log('nonce' + nonce)
		var myContract = new web3.eth.Contract(abi, contract)
		myContract.methods.decimals().call()
			.then(function(decimals) {

				// 获取交易数据
				console.log(Number(value) * Math.pow(10, decimals))
				var txData = {
					chainId: web3.utils.toHex(128),
					// nonce每次++，以免覆盖之前pending中的交易
					nonce: web3.utils.toHex(nonce++),
					// 设置gasLimit和gasPrice
					gas: web3.utils.toHex(gas),
					gasPrice: web3.utils.toHex(web3.eth.getGasPrice()),
					// 要转账的哪个账号  
					to: contract,
					// 从哪个账号转
					from: fromAddress,
					// 0.001 以太币
					value: "0x00",
					data: myContract.methods.transfer(
						toAddress, web3.utils.toWei(value, 'ether')).encodeABI()
				}


				// 引入私钥，并转换为16进制

				// 用私钥签署交易

				const tx = new Tx(txData, {
					'chain': 'ropsten'
				});
				tx.sign(Buffer.from(privateKey, 'hex'));
				console.log(Buffer.from(privateKey).toString('hex'))
				// 序列化
				var serializedTx = tx.serialize().toString('hex');

				web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex'), function(
					err,
					hash) {
					if (!err) {
						success(hash, undefined);
					} else {
						success(undefined, err);
					}
				});

			});




	}
}
export default eth;