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shobhitic/MyToken.sol

Last active April 18, 2024 06:33
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Upgradeable NFT Smart Contract - UUPS Proxy https://www.youtube.com/watch?v=tIHrNhr_OOQ
Raw
Readme.md

Run the following commands to initialize a directory for hardhat development

npm init -y
npm install --save-dev hardhat
npx hardhat init

Run this command to install openzeppelin upgrade plugin

npm install --save @openzeppelin/contracts-upgradeable @openzeppelin/hardhat-upgrades
Raw
hardhat.config.js
require('@openzeppelin/hardhat-upgrades');
require("@nomiclabs/hardhat-waffle");
// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
const accounts = await hre.ethers.getSigners();
for (const account of accounts) {
console.log(account.address);
}
});
// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more
/**
* @type import('hardhat/config').HardhatUserConfig
*/
module.exports = {
solidity: "0.8.4",
networks: {
mainnet: {
url: '', // YOUR RPC URL
accounts: ['sjfnaskjfnsajkn'] // YOUR PRIVATE KEY
}
}
};
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Connect to Proxy</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/web3@latest/dist/web3.min.js"></script>
</head>
<body>
<div class="container mt-5">
<div class="row">
<div class="col-6 offset-3">
<div id="beforeconnect">
<button class="btn btn-primary mt-3" id="connect">connect</button>
</div>
<div id="afterconnect">
<div>
<button class="btn btn-primary mt-3" id="mint">mint</button>
</div>
<div>
<button class="btn btn-primary mt-3" id="current">Get Current Value</button>
<h3>Current Value: <span id="currentVal"></span></h3>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript">
document.getElementById('afterconnect').hidden = true
var account = null;
var contract = null;
const connect = async () => {
if (window.ethereum) {
await window.ethereum.send('eth_requestAccounts');
window.web3 = new Web3(window.ethereum);
var accounts = await web3.eth.getAccounts();
account = accounts[0];
contract = new web3.eth.Contract(ABI, ADDRESS);
document.getElementById('beforeconnect').hidden = true
document.getElementById('afterconnect').hidden = false
document.getElementById('current').onclick = current;
document.getElementById('mint').onclick = mint;
await current()
} else {
alert('Metamask not detected')
}
}
const mint = async () => {
if (contract) {
await contract.methods.safeMint(account).send({ from: account });
await current()
}
}
const current = async () => {
if (contract) {
var count = await contract.methods.count().call()
document.getElementById('currentVal').innerHTML = count;
}
}
document.getElementById('connect').onclick = connect;
var ADDRESS = '0x5FC8d32690cc91D4c39d9d3abcBD16989F875707'
var ABI = [
{
"inputs": [],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "address",
"name": "previousAdmin",
"type": "address"
},
{
"indexed": false,
"internalType": "address",
"name": "newAdmin",
"type": "address"
}
],
"name": "AdminChanged",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "approved",
"type": "address"
},
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "Approval",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "operator",
"type": "address"
},
{
"indexed": false,
"internalType": "bool",
"name": "approved",
"type": "bool"
}
],
"name": "ApprovalForAll",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "beacon",
"type": "address"
}
],
"name": "BeaconUpgraded",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "uint8",
"name": "version",
"type": "uint8"
}
],
"name": "Initialized",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "previousOwner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "OwnershipTransferred",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "to",
"type": "address"
},
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "Transfer",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "implementation",
"type": "address"
}
],
"name": "Upgraded",
"type": "event"
},
{
"inputs": [
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "approve",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
}
],
"name": "balanceOf",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "count",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "getApproved",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "initialize",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "owner",
"type": "address"
},
{
"internalType": "address",
"name": "operator",
"type": "address"
}
],
"name": "isApprovedForAll",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "name",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "owner",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "ownerOf",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "proxiableUUID",
"outputs": [
{
"internalType": "bytes32",
"name": "",
"type": "bytes32"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "renounceOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "to",
"type": "address"
}
],
"name": "safeMint",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "safeTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"internalType": "bytes",
"name": "_data",
"type": "bytes"
}
],
"name": "safeTransferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "operator",
"type": "address"
},
{
"internalType": "bool",
"name": "approved",
"type": "bool"
}
],
"name": "setApprovalForAll",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "bytes4",
"name": "interfaceId",
"type": "bytes4"
}
],
"name": "supportsInterface",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "symbol",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "tokenURI",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "from",
"type": "address"
},
{
"internalType": "address",
"name": "to",
"type": "address"
},
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "transferFrom",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "transferOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "newImplementation",
"type": "address"
}
],
"name": "upgradeTo",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "newImplementation",
"type": "address"
},
{
"internalType": "bytes",
"name": "data",
"type": "bytes"
}
],
"name": "upgradeToAndCall",
"outputs": [],
"stateMutability": "payable",
"type": "function"
}
]
</script>
<style type="text/css">
</style>
</body>
</html>
Raw
MyToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
contract MyToken is Initializable, ERC721Upgradeable, OwnableUpgradeable, UUPSUpgradeable {
uint256 public count;
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
function initialize() initializer public {
__ERC721_init("MyToken", "MTK");
__Ownable_init();
__UUPSUpgradeable_init();
}
function safeMint(address to) public onlyOwner {
uint256 tokenId = ++count;
_safeMint(to, tokenId);
}
function _authorizeUpgrade(address newImplementation)
internal
onlyOwner
override
{}
}
Raw
MyToken2.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
contract MyToken2 is Initializable, ERC721Upgradeable, OwnableUpgradeable, UUPSUpgradeable {
uint256 public count;
/// @custom:oz-upgrades-unsafe-allow constructor
constructor() {
_disableInitializers();
}
function initialize() initializer public {
__ERC721_init("MyToken", "MTK");
__Ownable_init();
__UUPSUpgradeable_init();
}
function safeMint(address to) public {
uint256 tokenId = ++count;
_safeMint(to, tokenId);
}
function _authorizeUpgrade(address newImplementation)
internal
onlyOwner
override
{}
}
Raw
package.json
{
"name": "proxy",
"version": "1.0.0",
"description": "Run the following commands to initialize a directory for hardhat development",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"devDependencies": {
"@nomiclabs/hardhat-ethers": "^2.0.6",
"@nomiclabs/hardhat-waffle": "^2.0.3",
"chai": "^4.3.6",
"ethereum-waffle": "^3.4.4",
"ethers": "^5.6.6",
"hardhat": "^2.9.6"
},
"dependencies": {
"@openzeppelin/contracts-upgradeable": "^4.6.0",
"@openzeppelin/hardhat-upgrades": "^1.17.0"
}
}
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