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Merkletree Allowlist / Whitelist for NFT
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>Merkletree</title> | |
| <script src="https://cdn.jsdelivr.net/npm/merkletreejs@latest/merkletree.js"></script> | |
| <script src="https://cdn.jsdelivr.net/npm/keccak256@latest/keccak256.js"></script> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| const addresses = ["0x1C541e05a5A640755B3F1B2434dB4e8096b8322f","0x1071258E2C706fFc9A32a5369d4094d11D4392Ec","0x25f7fF7917555132eDD3294626D105eA1C797250","0xF6574D878f99D94896Da75B6762fc935F34C1300","0xfDbAb374ee0FC0EA0D7e7A60917ac01365010bFe","0xfB73f8B1DcD5d61D4dDC3872dA53200B8562F243","0x95F6E4C94857f605b9A73c9163D5c94AAf849c40","0xEd2C82417256DF74a995213713A586E07d3e5255","0xCb14d0D43BB32705fAbbD863f860A1410fa14613","0x7a865e44988a2ebcad845E977db07C71f8c62d31","0x340F5bEcB63a33B53959026d0CEb1f83C53A102F","0x969560dBBf4872049D0d245791eD74dEd0D66578","0x81B8888dfbdcc3Ad1dfe30A6f58a6d47eaf99aE8","0x29aB6E246c4aC305974A730B10459417FF65D469","0x2B790Dd5d9440f098E057E4958e3Ac0214712352","0xA53E16be846D815dfF774A384858021952b5B22E","0x04473648f6BeA9b074DFd7693b20AFCF9971a125","0xc26716b827c0d207AA3D25667028C2da1De787bf","0x21BAa9441e2DF389Ca27c9dB1cD9B59f2504dfEa","0x93D5193694a49eB85366ea1BDa69B577f1b878ae","0x3654322cFecCD60965A8b7866f50e55FE14EEBCC","0x174BAFfcB004ACfc53cDD3A48957b9D353BB171f","0x1d9A510DfCa2b1f3C52BD81122816FD86C7C7Ba0","0x55ae457519BbAf25d825772da81F57bD18E4B6Db","0x0997680928431EA22C1930c12Dc91f06d10be0c6","0xF9E8383bd1250aCf18Da971467B70045d4D06fB1","0x847aB63F94e931F9264407C54C97DbCfFEC9f8FE","0x5dcE9Fc14eED67D046A130d1d991163114b2820c","0x53b5585AA42b79B0b8e620896ceB0D0435441071","0x5E661e550Fcac43DEC925449A7F0bCA0C32D6A44","0xA46f327d91282aFD4E99d79a8fD7Eac7A123dAF5","0xD03241a89a18c779B71f1bD348d2BbF1e20b8ea8","0xed0850a960ABE5715ECEa4b479272092733922f0","0x4D15f921A25e8677Da2d878B01c80Df861E67F03","0x98d450BfbBFD64D780B632f6acd0FC59d11E575e","0xaef0FfA370108915d4198Fe6eF40eBa446f00d79","0x5Bc46cf525E6E26f8799685E5247a93355354cBf","0x5B9837c339F7b55564Aeb185e8DEdeEDD10AfcB7","0xbda8049200F7a42312AFeBDb5b99D514EE0df302","0x5B38Da6a701c568545dCfcB03FcB875f56beddC4"] | |
| const leaves = addresses.map(x => keccak256(x)) | |
| const tree = new MerkleTree(leaves, keccak256, { sortPairs: true }) | |
| const buf2hex = x => '0x' + x.toString('hex') | |
| console.log(buf2hex(tree.getRoot())) | |
| const leaf = keccak256(address) // address from wallet using walletconnect/metamask | |
| const proof = tree.getProof(leaf).map(x => buf2hex(x.data)) | |
| contract.methods.safeMint(address, proof).send({ from: address }) // will be called on click of the mint button | |
| </script> | |
| </body> | |
| </html> |
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| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.4; | |
| import "@openzeppelin/[email protected]/token/ERC721/ERC721.sol"; | |
| import "@openzeppelin/[email protected]/access/Ownable.sol"; | |
| import "@openzeppelin/[email protected]/utils/Counters.sol"; | |
| import "@openzeppelin/[email protected]/utils/cryptography/MerkleProof.sol"; | |
| contract MyToken is ERC721, Ownable { | |
| using Counters for Counters.Counter; | |
| bytes32 public root; | |
| Counters.Counter private _tokenIdCounter; | |
| constructor(bytes32 _root) ERC721("MyToken", "MTK") { | |
| root = _root; | |
| } | |
| function safeMint(address to, bytes32[] memory proof) public { | |
| require(isValid(proof, keccak256(abi.encodePacked(msg.sender))), "Not a part of Allowlist"); | |
| uint256 tokenId = _tokenIdCounter.current(); | |
| _tokenIdCounter.increment(); | |
| _safeMint(to, tokenId); | |
| } | |
| function isValid(bytes32[] memory proof, bytes32 leaf) public view returns (bool) { | |
| return MerkleProof.verify(proof, root, leaf); | |
| } | |
| } | |
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