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58 lines
3.0 KiB
58 lines
3.0 KiB
# <img src="logo.png" alt="OpenZeppelin" width="400px">
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[](https://www.npmjs.org/package/openzeppelin-solidity)
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[](https://travis-ci.org/OpenZeppelin/openzeppelin-solidity)
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[](https://coveralls.io/github/OpenZeppelin/openzeppelin-solidity?branch=master)
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**OpenZeppelin is a library for secure smart contract development.** It provides implementations of standards like ERC20 and ERC721 which you can deploy as-is or extend to suit your needs, as well as Solidity components to build custom contracts and more complex decentralized systems.
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## Install
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```
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npm install openzeppelin-solidity
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```
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## Usage
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To write your custom contracts, import ours and extend them through inheritance.
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```solidity
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pragma solidity ^0.4.24;
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import 'openzeppelin-solidity/contracts/token/ERC721/ERC721Full.sol';
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import 'openzeppelin-solidity/contracts/token/ERC721/ERC721Mintable.sol';
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contract MyNFT is ERC721Full, ERC721Mintable {
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constructor() ERC721Full("MyNFT", "MNFT") public {
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}
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}
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```
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> You need an ethereum development framework for the above import statements to work! Check out these guides for [Truffle] or [Embark].
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On our site you will find a few [guides] to learn about the diferent parts of OpenZeppelin, as well as [documentation for the API][API docs]. Keep in mind that the API docs are work in progress, and don’t hesitate to ask questions in [our Slack][Slack].
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## Security
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OpenZeppelin the project is maintained by [Zeppelin] the company, and developed following our high standards for code quality and security. OpenZeppelin is meant to provide tested and community-audited code, but please use common sense when doing anything that deals with real money! We take no responsibility for your implementation decisions and any security problems you might experience.
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The core development principles and strategies that OpenZeppelin is based on include: security in depth, simple and modular code, clarity-driven naming conventions, comprehensive unit testing, pre-and-post-condition sanity checks, code consistency, and regular audits.
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Please report any security issues you find to security@openzeppelin.org.
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## Contribute
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OpenZeppelin exists thanks to its contributors. There are many ways you can participate and help build high quality software. Check out the [contribution guide]!
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## License
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OpenZeppelin is released under the [MIT License](LICENSE).
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[API docs]: https://openzeppelin.org/api/docs/token_ERC721_ERC721BasicToken.html
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[guides]: https://openzeppelin.org/api/docs/get-started.html
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[Slack]: https://slack.openzeppelin.org
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[Zeppelin]: https://zeppelin.solutions
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[contribution guide]: CONTRIBUTING.md
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[Truffle]: https://truffleframework.com/docs/truffle/quickstart
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[Embark]: https://embark.status.im/docs/quick_start.html
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