CHAOWEICHIU

pragma solidity ^0.5.0;

contract DonationContract {

    address payable[] public donationList = [
      0x8A1DfD12b5B0D28296a14076D5Da56a97216B929
    ];
    
    function multiTransfer() public payable {
        uint256 amount = msg.value / donationList.length;

CHAOWEICHIU

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20Detailed.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";

contract CustomToken is ERC20, ERC20Detailed {
    constructor () public ERC20Detailed("陳之汗😓", "SWEAT", 0) {
        _mint(_msgSender(), 100 * (10 ** uint256(decimals())));
    }
}

CHAOWEICHIU

/* Requirement node: v8.10.0 */

const Wallet = require('ethereumjs-wallet');
const EthUtil = require('ethereumjs-util');

const keyPrivate = '0x61ce8b95ca5fd6f55cd97ac60817777bdf64f1670e903758ce53efc32c3dffeb'
const keyPublic = 'fff49b58b83104ff16875452852466a46c7169ba4e368d11830c9170624e0a9509080a05a38c18841718ea4fc13483ac467d3e2d728d41ff16b73b9c943734f8'

const privateKeyBuffer = EthUtil.toBuffer(keyPrivate);
const wallet = Wallet.fromPrivateKey(privateKeyBuffer);

CHAOWEICHIU

git clone https://github.com/Homebrew/brew ~/.linuxbrew/Homebrew
mkdir ~/.linuxbrew/bin
ln -s ../Homebrew/bin/brew ~/.linuxbrew/bin
eval $(~/.linuxbrew/bin/brew shellenv)
​
# Uninstall the older version of SAM Local 
npm uninstall -g aws-sam-local
​
# Uninstall the older version of SAM CLI 
pip uninstall aws-sam-cli

CHAOWEICHIU

import * as functions from "firebase-functions";
import * as express from "express";
const { ApolloServer, gql } = require("apollo-server-express");
require("graphql");

const typeDefs = gql`
  type Query {
    hello: String
  }
`;

CHAOWEICHIU

const axios = require('axios');
const FormData = require('form-data');
const fs = require('fs');

const file = './test.txt';
const accessToken = 'YOUR_PERSONAL_ACCESS_TOKEN'; // Can be found at https://app.storyblok.com/#!/me/account
const spaceId = 'YOUR_SPACE_ID';

const fileUpload = function (signed_request, success, failed) {
  const form = new FormData();

CHAOWEICHIU

pragma solidity ^0.5.2;
pragma experimental ABIEncoderV2;

contract RandPicker {
    
    address payable public owner;
    uint public entryFee = 0;
    uint public pickOneFee = 0;
    uint public namePurposeFee = 0;
    

CHAOWEICHIU

pragma solidity ^0.5.2;
pragma experimental ABIEncoderV2;

contract RandPicker {
    
    address payable public owner;
    uint public entryFee = 0;
    uint public pickOneFee = 0;
    uint public namePurposeFee = 0;
    

CHAOWEICHIU

// Node Version: 10.15.1
// NPM Version: 6.8.0
const Web3 = require('web3'); // Version: 1.0.0-beta.37
const EthereumTx = require('ethereumjs-tx'); // Version: 1.3.7


const web3 = new Web3('http://testnet.dexon.org:8545');
const myAddress = '0x89c24a88BaD4abE0A4F5b2EB5a86db1fb323832C';
const myPrivateKey = Buffer.from('61ce8b95ca5fd6f55cd97ac60817777bdf64f1670e903758ce53efc32c3dffeb', 'hex');
const message = 'DEXON-DS';

CHAOWEICHIU

const fetch = require('node-fetch')
const EthCrypto = require('eth-crypto')
const FileSaver = require('file-saver')
const { binaryStringToBlob } = require('blob-util')

const keyPrivate = '0x61ce8b95ca5fd6f55cd97ac60817777bdf64f1670e903758ce53efc32c3dffeb'
const keyPublic = 'fff49b58b83104ff16875452852466a46c7169ba4e368d11830c9170624e0a9509080a05a38c18841718ea4fc13483ac467d3e2d728d41ff16b73b9c943734f8'
const hashFromSmartContract = 'Qme9JXnWExQLxXS5U1Hd1QdbTCNBQqAiVy5UrR3dwZxmmU' // a zip file contains a image

function encryptStringWithPublicKey({ message, publicKey }) {