New guides (#1792)
* 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.
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@ -26,12 +26,17 @@ This set of interfaces, contracts, and utilities are all related to the [ERC721
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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`,
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`IERC721Metadata`, and `IERC721Enumerable`. Only the first one is required in a
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contract to be ERC721 compliant. Each interface is implemented separately in
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`ERC721`, `ERC721Metadata`, and `ERC721Enumerable`. You can choose the subset
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of functionality you would like to support in your token by combining the
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desired subset through inheritance. The fully featured token implementing all
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three interfaces is prepackaged as `ERC721Full`.
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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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