5.5. 实用例子
5.5.1. 数据写入到区块链中
做一笔交易,并写入数据到区块链中
let Web3 = require("web3");
let fs = require("fs");
let web3 = new Web3("http://localhost:8545");
let log = {
time:(new Date).getTime(),
type:"info",
msg:"Web3 Test!!!"
};
let str = JSON.stringify(log);
console.log(str