taarushv

// TX 1 - Admin wallet enables trading on FCKIT token https://etherscan.io/tx/0x12b949cf5605bb4da83efd14b6d38ad628a9ebf3befb42141d2ddb8cfc43d53e
// TX 2 - Searcher uses a proxy contract to buy ~2B FCKIT --for 60 ETH-- into multiple wallets (and to pay builder for gas fees/rebate) https://etherscan.io/tx/0xc3a37580a96b52a718a5b516dfef209f150e87a75032c725536821ea0d6cc875
// TX 3 - Rebate is forwarded from the flashbots builder back to the user https://etherscan.io/tx/0x80dc2721d833cd221bdf9264f1138a88907f57303bc606f8ee4034297201e095

const { ethers } = require('ethers'); // v5
const rpc = "https://mainnet.infura.io/v3/YOUR_API_KEY_HERE"
const provider = new ethers.providers.JsonRpcProvider(rpc)

// uni v2 router, to fetch trades using logs
const uniPool ="0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D"

taarushv

// Init web3 and configure to a node (alternatively to infura/ganache-cli)
var Web3 = require('web3')
var web3 = new Web3('http://127.0.0.1:8545')

// Setup lowdb to store 
const low = require('lowdb')
const FileSync = require('lowdb/adapters/FileSync')
const adapter = new FileSync('keysDB.json')
const db = low(adapter)
db.defaults({ keys: [], count: 0 }).write()

taarushv

pragma solidity ^0.4.23;
pragma experimental ABIEncoderV2;
contract MyCoinHome {

      mapping(string => bool) private restrictedUsernames;
      
      mapping(string=> string) usernameToIpfsHash;
      mapping(string=>address)  usernameToOwner;
      mapping(address=> string) ownerToUsername;
      mapping(string => bool) private usernameToAllowSale;

taarushv

pragma solidity ^0.5.0;

library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:

taarushv

var Tx = require('ethereumjs-tx')
const Web3 = require('web3')
var QRCode = require('qrcode')
const low = require('lowdb')
const FileSync = require('lowdb/adapters/FileSync')
const adapter = new FileSync('db.json')
const db = low(adapter)
var fs = require('fs')

// Web3 configured to Ropsten test network

taarushv

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taarushv

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taarushv

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.

taarushv

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.

taarushv

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.