From 538b6d21b15733601f9193af5b9f662b94f16ea1 Mon Sep 17 00:00:00 2001 From: Zachary Date: Fri, 16 Apr 2021 10:49:53 +0800 Subject: [PATCH] Update ERC721 guide for 4.0 (#2630) --- docs/modules/ROOT/pages/erc721.adoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/modules/ROOT/pages/erc721.adoc b/docs/modules/ROOT/pages/erc721.adoc index 9962c2c0e..2365978c2 100644 --- a/docs/modules/ROOT/pages/erc721.adoc +++ b/docs/modules/ROOT/pages/erc721.adoc @@ -17,9 +17,10 @@ Here's what a contract for tokenized items might look like: pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; +import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; -contract GameItem is ERC721 { +contract GameItem is ERC721URIStorage { using Counters for Counters.Counter; Counters.Counter private _tokenIds;