Hero-Development

const handleMintClick = async (evt) => {
  if( evt && evt.cancelable )
    evt.preventDefault();

  try{
    //usually returns a BN (BigNumber)
    const priceBN = await contract.methods.PRICE().call();
    const quantityBN = new Web3.utils.BN( `${quantity}` );
    const valueBN = priceBN.mul( quantityBN );

Hero-Development

// SPDX-License-Identifier: BSD-3-Clause

pragma solidity ^0.8.0;

/************************
 * @author: squeebo_nft *
 ************************/

import "@openzeppelin/contracts/utils/Strings.sol";

Hero-Development

// SPDX-License-Identifier: BSD-3
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Address.sol";

interface IERC20 {
  function balanceOf(address account) external view returns (uint256);
  function transfer(address to, uint256 amount) external returns (bool);
}

Hero-Development

//Step 1: Create a signer
const Web3 = require( 'web3' );

const web3 = new Web3();
const account = web3.eth.accounts.create();
console.log( account );

/*
{

Hero-Development

// SPDX-License-Identifier: BSD-3

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

contract Signed is Ownable{
  using ECDSA for bytes32;

Hero-Development

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import './Signed.sol';

contract SignedData2B is IERC721, Signed{
  struct MintParams{

Hero-Development

const { assert } = require("hardhat");
const SignedData2B = artifacts.require( 'contracts/SignedData2B.sol' );

const Web3 = hre.Web3;

const accounts = [];
let owner, signedData;
contract( 'Step2b', async function( accts ){
  owner = accts.shift();

Hero-Development

interface DefaultReverseResolver{
  function name(bytes32 node) external view returns (string memory);
}

interface ENS{
  function resolver(bytes32 node) external view returns (address);
}

interface ReverseRegistrar{
  function node(address addr) external pure returns (bytes32);

Hero-Development

<?php
error_reporting( E_ALL );
ini_set( 'display_errors', 1 );

$API_KEY = 'xxxxxxxxxxxxxxxx';
$COLLECTION = '0xacfa101ece167f1894150e090d9471aee2dd3041';

$ch = curl_init();
$fd = tmpfile();
for( $i = 0; $i < 7777; $i ){

Hero-Development

//app.use() adds a middleware
//middleware tries to handle every request
//this middleware is used for logging
app.use(( req, res, next ) => {
  let request = req.method.toUpperCase() +' '+ req.url

  if( Object.keys( req.query ).length ){
    request += '?'+ querystring.stringify( req.query )
  }