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erc721a-upgradeable
Advanced tools
📢 Version 4.x introduces several breaking changes. Please refer to the documentation for more details.
We highly recommend reading the migration guide, especially the part on supportsInterface
if you are using with OpenZeppelin extensions (e.g. ERC2981).
This repository hosts the Upgradeable variant of ERC721A, meant for use in upgradeable contracts. This variant is available as separate package called erc721a-upgradeable
.
This version uses the diamond storage layout pattern.
It follows all of the rules for Writing Upgradeable Contracts: constructors are replaced by initializer functions, state variables are initialized in initializer functions, and we additionally check for storage incompatibilities across minor versions.
Warning
There will be storage incompatibilities across major versions of this package, which makes it unsafe to upgrade a deployed contract from one major version to another, for example from 3.4.0 to 4.0.0.
It is strongly encouraged to use these contracts together with a tool that can simplify the deployment of upgradeable contracts, such as OpenZeppelin Upgrades Plugins.
This repository is generated by a transpiler.
Chiru Labs is not liable for any outcomes as a result of using ERC721A and ERC721A-Upgradeable. DYOR.
https://chiru-labs.github.io/ERC721A/
npm install --save-dev erc721a-upgradeable
Once installed, you can use the contracts in the library by importing them:
pragma solidity ^0.8.4;
import 'erc721a-upgradeable/contracts/ERC721AUpgradeable.sol';
import '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol';
contract Something is ERC721AUpgradeable, OwnableUpgradeable {
// Take note of the initializer modifiers.
// - `initializerERC721A` for `ERC721AUpgradeable`.
// - `initializer` for OpenZeppelin's `OwnableUpgradeable`.
function initialize() initializerERC721A initializer public {
__ERC721A_init('Something', 'SMTH');
__Ownable_init();
}
function mint(uint256 quantity) external payable {
// `_mint`'s second argument now takes in a `quantity`, not a `tokenId`.
_mint(msg.sender, quantity);
}
function adminMint(uint256 quantity) external payable onlyOwner {
_mint(msg.sender, quantity);
}
}
This repository is automatically transpiled from the main ERC721A repository by a workflow.
Any changes to the contracts
and test
directories will be overwritten.
If you want to make a contribution to the transpiler workflow:
git checkout -b feature/AmazingFeature
)git commit -m 'Add some AmazingFeature'
)git push origin feature/AmazingFeature
)npm install
npm run test
Distributed under the MIT License. See LICENSE.txt
for more information.
Project Link: https://github.com/chiru-labs/ERC721A-Upgradeable
FAQs
ERC721A Upgradeable contract for Solidity
The npm package erc721a-upgradeable receives a total of 9,850 weekly downloads. As such, erc721a-upgradeable popularity was classified as popular.
We found that erc721a-upgradeable demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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