关于
令牌Multisender Dapp智能合约。空投令牌。批量发送ERC20，ETH，以太坊令牌。在几笔交易中发送数千笔转帐。与一一发送相比，它可以帮助用户节省更多的发送费用和时间

演示：https://multisender.app/
开源：https://github.com/rstormsf/multisender

开源地址

https://github.com/vittominacori/watch-token
https://github.com/vittominacori/erc20-generator

演示地址

https://vittominacori.github.io/watch-token/create/
https://vittominacori.github.io/erc20-generator/create-token/

背景

为了实现已以太坊为资金链，另一个高TPS的链做应用链，之前已经计划做EOS2.0链的深度定制，以满足eth地址体系。由于为了尽快接入Eth生态，所以最近基于Eth做了共识方面定制，修改为DPOS共识。
目前一期先已以太坊侧链做应用链，后期根据生态需要，计划会继续之前的基于EOS做侧链，由于生态，账户体系，资源模型问题，暂时延后，后面考虑再做一层转换。
目前的侧链百花齐放，但侧链与以太坊之前的代币划转，都是通过中心化服务，保存eth公链与侧链两个锁定地址的私钥，然后进行双向转账的。这样由于私钥保存以及项目方等问题就影响了资金池的安全。

去中心化IBC方案

Eth公链到Eth侧链

Eth公链部署一个IBC合约A，此合约地址接收用户跨链转账。
此IBC合约中维护着当前Eth侧链的21个正在出块BP地址，如果Eth侧链BP地址有变更，及时会更新此合约。
Eth侧链也部署着另一个IBC合约B。
Eth侧链21个正在出块的BP节点监测Eth公链上此IBC合约A的转入交易，当交易不可逆时，提交此交易并投票到Eth侧链IBC合约B中，当此交易投票达到 2/3+1 时，此交易达到执行条件，会从当前侧链IBC合约地址B中转出相应的代币到Eth侧链用户同样的账户地址中。

Eth侧链到Eth公链

用户在Eth侧链中将对应的代币转到Eth侧链IBC合约B中，Eth侧链各BP节点监测此交易到达不可逆时，分别向Eth公链IBC合约A中发起转账请求，当达到2/3+1 时，此交易达到执行条件，会从当前Eth公链IBC合约A中转出相应的代币到Eth公链用户同样的账户地址中。

去中心化分析

对于eth公链和侧链的两个账户接收地址，都是需要侧链当前出块BP总数的2/3+1授权才能转移资金的，所以实现了去中心化，保证了资金池的安全

go

https://github.com/onrik/ethrpc

python

https://github.com/ConsenSys/ethjsonrpc
https://github.com/ethereum/web3.py
持续更新

var Web3 = require("web3")

var web3;

if (typeof web3 !== 'undefined') {
    web3 = new Web3(web3.currentProvider);
} else {
    web3 = new Web3(new Web3.providers.WebsocketProvider("ws://172.17.116.158:8546"));
}

var contractAbi = [{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"},{"indexed":true,"internalType":"address","name":"proposer","type":"address"},{"indexed":true,"internalType":"address","name":"dst","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"LogCreateProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"},{"indexed":true,"internalType":"address","name":"dst","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"LogPassProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"},{"indexed":true,"internalType":"address","name":"dst","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"LogRejectProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"val","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"LogSetUnpassed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"},{"indexed":true,"internalType":"address","name":"voter","type":"address"},{"indexed":false,"internalType":"bool","name":"auth","type":"bool"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"LogVote","type":"event"},{"inputs":[],"name":"MaxValidators","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MinimalStakingCoin","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PROPOSAL_ADDR","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ProposalAddr","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PunishContractAddr","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"StakingLockPeriod","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ValidatorContractAddr","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WithdrawProfitPeriod","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"initialized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"miner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"pass","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proposalLastingPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"proposals","outputs":[{"internalType":"address","name":"proposer","type":"address"},{"internalType":"address","name":"dst","type":"address"},{"internalType":"string","name":"details","type":"string"},{"internalType":"uint256","name":"createTime","type":"uint256"},{"internalType":"uint16","name":"agree","type":"uint16"},{"internalType":"uint16","name":"reject","type":"uint16"},{"internalType":"bool","name":"resultExist","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"val","type":"address"},{"internalType":"address","name":"punish","type":"address"},{"internalType":"address","name":"proposal","type":"address"}],"name":"setContracts","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"miner_","type":"address"}],"name":"setMiner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"votes","outputs":[{"internalType":"address","name":"voter","type":"address"},{"internalType":"uint256","name":"voteTime","type":"uint256"},{"internalType":"bool","name":"auth","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"vals","type":"address[]"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"dst","type":"address"},{"internalType":"string","name":"details","type":"string"}],"name":"createProposal","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"id","type":"bytes32"},{"internalType":"bool","name":"auth","type":"bool"}],"name":"voteProposal","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"val","type":"address"}],"name":"setUnpassed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}];

var contractaAddress = "0x000000000000000000000000000000000000F002";

MyContract = new web3.eth.Contract(contractAbi, contractaAddress);
                //console.log(MyContract.events.orderlog);

var myEvent = MyContract.events.LogCreateProposal({
        filter:{},
        fromBlock: 0
}, function(error, event){})
        .on('data', function(event){
        console.log(event); // same results as the optional callback above
})
        .on('changed', function(event){
                    // remove event from local database
        })        
    .on('error', console.error);

运行

npm init -y
npm install web3 --save
node map_event.js

测试数据

{
  address: '0x000000000000000000000000000000000000F002',
  blockNumber: 64274,
  transactionHash: '0x950203bc5d391a6b8180c5be6d290403f39fe81a8666e40b74cc3b9b094ce1a6',
  transactionIndex: 0,
  blockHash: '0x9abb16d015c49268c04909bcea414994d9bc0867dc8648b5e3dd33071d86daf5',
  logIndex: 0,
  removed: false,
  id: 'log_14a4176e',
  returnValues: Result {
    '0': '0x88437e94b8ffc61e30087ba66182c8f291e4af36d289ae299f676f014fdba411',
    '1': '0xc65dD4299C682f335d6e15e2B5774D015E01E479',
    '2': '0xc65dD4299C682f335d6e15e2B5774D015E01E479',
    '3': '1614340623',
    id: '0x88437e94b8ffc61e30087ba66182c8f291e4af36d289ae299f676f014fdba411',
    proposer: '0xc65dD4299C682f335d6e15e2B5774D015E01E479',
    dst: '0xc65dD4299C682f335d6e15e2B5774D015E01E479',
    time: '1614340623'
  },
  event: 'LogCreateProposal',
  signature: '0xc10f2f4d53a0e342536c6af3cce9c6ee25c32dbb323521ce0e1d4494a3e362e8',
  raw: {
    data: '0x000000000000000000000000000000000000000000000000000000006038e20f',
    topics: [
      '0xc10f2f4d53a0e342536c6af3cce9c6ee25c32dbb323521ce0e1d4494a3e362e8',
      '0x88437e94b8ffc61e30087ba66182c8f291e4af36d289ae299f676f014fdba411',
      '0x000000000000000000000000c65dd4299c682f335d6e15e2b5774d015e01e479',
      '0x000000000000000000000000c65dd4299c682f335d6e15e2b5774d015e01e479'
    ]
  }

参考

https://www.cnblogs.com/tokenpai/p/10334952.html