ERCRef Contracts
A repository for Ethereum builders to build ERC reference implementations.
Getting Started
Here is how you can start using this repo.
Use npm package
npm i -D @ercref/contractsUseful Templates
- @fulldecent's https://github.com/fulldecent/solidity-template
- @mattstam's https://github.com/mattstam/solidity-template
Import dependencies
Import the contracts like you would from OpenZeppelin's contract. e.g.
import "@ercref/contracts/drafts/IERC5732.sol";
import "@ercref/contracts/drafts/BlocknumGapCommit.sol";Here is a full example:
pragma solidity ^0.8.17;
import "@ercref/contracts/drafts/IERC5732.sol";
import "@ercref/contracts/drafts/BlocknumGapCommit.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
contract CommitableERC721 is ERC721, BlocknumGapCommit {
constructor(uint256 _version) ERC721("CommitToMintImpl", "CTMI") {
}
function safeMint(
address _to,
uint256 _tokenId,
bytes calldata _extraData
) onlyCommited(
abi.encodePacked(_to, _tokenId),
bytes32(_extraData[0:32]),
6 // number of blocks required to reveal
)
external {
_safeMint(_to, _tokenId); // ignoring _extraData in this simple reference implementation.
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, BlocknumGapCommit)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
}Contributors of ERCRef
Publish npm
yarn publish --access publicDisclaimer and Warnings
WARNING: This repository is meant to be cutting (bleeding) edge and pioneer. Please make sure to conduct security audit before using in production.