Implementation of ERC721 in Rust for Arbitrum's Stylus. Most of the code is based off of the example here, however there are several differences:

• Fixed balances bug in the transfer function
• Fixed receiver check for safeMint and safeTransfer
• Optimized mint function to be more gas efficient
• Optimized safeMint function to be more gas efficient
• mint(address) has been changed to mint(address, tokenId). Same goes for safeMint.
• totalSupply was removed from the base implementation
• supportsInterface returns true for IERC721Metadata
• tokenUri() has been renamed to tokenUR() to match the ERC721 spec
• Changed internal burn() function to only require a tokenId
• Refactored code to match the latest Stylus SDK

To get the contract abi, you can run:

cargo stylus export-abi

To deploy the code you can run (this will use the default Stylus RPC):

cargo stylus deploy --private-key=<PRIVATE_KEY>

You can interact with Stylus contracts as you would any other contract using the exported ABI.

More info on Stylus can be found here.