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shobhitic/FreeMintToken.sol

Last active January 20, 2023 18:57
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Free Mint NFT Smart Contract + UI - https://www.youtube.com/watch?v=5tSKO9WjF7E
Raw
FreeMintToken.sol
// SPDX-License-Identifier: MIT
// Made by @Web3Club
pragma solidity ^0.8.4;
import "erc721a/contracts/ERC721A.sol";
contract FreeMintToken is ERC721A {
uint256 public constant USER_LIMIT = 10;
uint256 public constant MAX_SUPPLY = 10_000;
constructor() ERC721A("FreeMintToken", "FMT") {}
function mint(uint256 quantity) external {
require(_totalMinted() + quantity <= MAX_SUPPLY, "Not more supply left");
require(_numberMinted(msg.sender) + quantity <= USER_LIMIT, "User limit reached");
// add allowlist verification here
_mint(msg.sender, quantity);
}
function _baseURI() internal view virtual override returns (string memory) {
return "ipfs://QmWiQE65tmpYzcokCheQmng2DCM33DEhjXcPB6PanwpAZo/";
}
}
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Freemint</title>
<script src="https://cdn.jsdelivr.net/npm/web3@latest/dist/web3.min.js"></script>
</head>
<body>
<p>Wallet Address - <span id="wallet-address"></span></p>
<button id="connect-wallet-btn">Connect</button>
<input type="number" max="10" name="quantity" id="quantity-input" value="10">
<button id="mint-btn">Mint</button>
<script type="text/javascript">
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];
document.getElementById('wallet-address').textContent = account;
contract = new web3.eth.Contract(ABI, ADDRESS)
document.getElementById('mint-btn').onclick = mint
}
}
const mint = async () => {
if (contract) {
const quantity = document.getElementById('quantity-input').value;
await contract.methods.mint(quantity).send({ from: account })
alert('Mint successful')
}
}
document.getElementById('connect-wallet-btn').onclick = connect
const ADDRESS = "0x03f5292d4757e6e6fad1ec7fdf3e99ff55b81035" // Add your own address here
const ABI = [
{
"inputs": [],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"inputs": [],
"name": "ApprovalCallerNotOwnerNorApproved",
"type": "error"
},
{
"inputs": [],
"name": "ApprovalQueryForNonexistentToken",
"type": "error"
},
{
"inputs": [],
"name": "ApproveToCaller",
"type": "error"
},
{
"inputs": [],
"name": "BalanceQueryForZeroAddress",
"type": "error"
},
{
"inputs": [],
"name": "MintERC2309QuantityExceedsLimit",
"type": "error"
},
{
"inputs": [],
"name": "MintToZeroAddress",
"type": "error"
},
{
"inputs": [],
"name": "MintZeroQuantity",
"type": "error"
},
{
"inputs": [],
"name": "OwnerQueryForNonexistentToken",
"type": "error"
},
{
"inputs": [],
"name": "OwnershipNotInitializedForExtraData",
"type": "error"
},
{
"inputs": [],
"name": "TransferCallerNotOwnerNorApproved",
"type": "error"
},
{
"inputs": [],
"name": "TransferFromIncorrectOwner",
"type": "error"
},
{
"inputs": [],
"name": "TransferToNonERC721ReceiverImplementer",
"type": "error"
},
{
"inputs": [],
"name": "TransferToZeroAddress",
"type": "error"
},
{
"inputs": [],
"name": "URIQueryForNonexistentToken",
"type": "error"
},
{
"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": "uint256",
"name": "fromTokenId",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "toTokenId",
"type": "uint256"
},
{
"indexed": true,
"internalType": "address",
"name": "from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "to",
"type": "address"
}
],
"name": "ConsecutiveTransfer",
"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"
},
{
"inputs": [],
"name": "MAX_SUPPLY",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "USER_LIMIT",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"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": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "getApproved",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"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": [
{
"internalType": "uint256",
"name": "quantity",
"type": "uint256"
}
],
"name": "mint",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "name",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "ownerOf",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"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": [],
"name": "totalSupply",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"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"
}
]
</script>
</body>
</html>
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