aa878d8b69
* Improved tokens guide, add ERC777.
* Fix typo.
* Add release schedule and api stability.
* Add erc20 supply guide.
* Revamp get started
* Add Solidity version to examples
* Update access control guide.
* Add small disclaimer to blog guides
* Update tokens guide.
* Update docs/access-control.md
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Update docs/access-control.md
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Update docs/access-control.md
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Apply suggestions from code review
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Apply suggestions from code review
Co-Authored-By: Francisco Giordano <frangio.1@gmail.com>
* Documentation: Typos and add npm init -y to setup instructions (#1793)
* Fix typos in GameItem ERC721 sample contract
* Add npm init -y to create package.json
* Address review comments.
(cherry picked from commit 852e11c2db)
43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
---
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sections:
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- title: Core
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contracts:
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- IERC721
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- ERC721
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- IERC721Metadata
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- ERC721Metadata
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- ERC721Enumerable
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- IERC721Enumerable
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- IERC721Full
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- ERC721Full
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- IERC721Receiver
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- title: Extensions
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contracts:
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- ERC721Mintable
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- ERC721MetadataMintable
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- ERC721Burnable
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- ERC721Pausable
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- title: Convenience
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contracts:
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- ERC721Holder
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---
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This set of interfaces, contracts, and utilities are all related to the [ERC721 Non-Fungible Token Standard](https://eips.ethereum.org/EIPS/eip-721).
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*For a walkthrough on how to create an ERC721 token read our [ERC721 guide](../../tokens.md#erc721).*
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The EIP consists of three interfaces, found here as `IERC721`, `IERC721Metadata`, and `IERC721Enumerable`. Only the first one is required in a contract to be ERC721 compliant.
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Each interface is implemented separately in `ERC721`, `ERC721Metadata`, and `ERC721Enumerable`. You can choose the subset of functionality you would like to support in your token by combining the
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desired subset through inheritance.
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The fully featured token implementing all three interfaces is prepackaged as `ERC721Full`.
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Additionally, `IERC721Receiver` can be used to prevent tokens from becoming forever locked in contracts. Imagine sending an in-game item to an exchange address that can't send it back!. When using `safeTransferFrom()`, the token contract checks to see that the receiver is an `IERC721Receiver`, which implies that it knows how to handle `ERC721` tokens. If you're writing a contract that needs to receive `ERC721` tokens, you'll want to include this interface.
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Finally, some custom extensions are also included:
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- `ERC721Mintable` — like the ERC20 version, this allows certain addresses to mint new tokens
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- `ERC721Pausable` — like the ERC20 version, this allows addresses to freeze transfers of tokens
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> This page is incomplete. We're working to improve it for the next release. Stay tuned!
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