ERC721F

The goal of ERC721F is to provide a simple extension of IERC721 with significant gas savings for minting multiple and single NFTs in a single transaction. This project and implementation will be updated regularly and will continue to stay up to date with best practices.

ERC721F Extends ERC721 Non-Fungible Token Standard basic implementation. No longer uses ERC721Enumerable , but still provide a totalSupply() and walletOfOwner(address _owner) implementation.

The Author is not liable for any outcomes as a result of using ERC721F. DYOR!

Roadmap

• [] Add more documentation on benefits of using ERC721F
• [] Continue to try to reduce gas costs
• [] Start automated testing

See the open issues for a full list of proposed features (and known issues).

Usage

Just import the file directly from Gitlab like this:

This can then be used in your contract as following:

// SPDX-License-Identifier: MIT 
pragma solidity ^0.8.9 <0.9.0;

import "https://github.com/FrankNFT-labs/ERC721F/blob/v4.7.0/contracts/token/ERC721/ERC721FCOMMON.sol";

contract Example is ERC721F {
    constructor() ERC721F("Example", "Example") {}

    /**
     * Mint your tokens here.
     */
    function mint(uint256 numberOfTokens) external {
        require(msg.sender==tx.origin,"No Contracts allowed.");
        uint256 supply = totalSupply();
        for(uint256 i; i < numberOfTokens;){
            _mint( msg.sender, supply + i ); // no need to use safeMint as we don't allow contracts.
            unchecked{ i++;}
        }
    }
}

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement".

Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

Running tests locally

1. Copy .env.example and rename to .env
2. npm install
3. npx hardhat compile
4. npx hardhat test

Warning Since hardhat only compiles a single path at once, you'll probably fail every single test that's executed on solutions located in /examples. This is because those artifacts haven't been created yet. These can be created by changing the the sources path in hardhat.config.js to "./examples" and executing step 3 again.

Note: npx hardhat clean removes the created artifacts

Running a single test

npx hardhat test ./test/token/ERC721/GasUsage.test.js

Testing gas consumption

• Enable the creation of a gas report by setting REPORT_GAS to true in .env
• Toggle the creation of a gas report file by (un)commenting outputFile in hardhat.config.js
• Change the total runs and toggle the optimizer by changing the solidity optimizer values in hardhat.config.js