ERC721Utils

Library that provide common ERC-721 utility functions. See https://eips.ethereum.org/EIPS/eip-721[ERC-721]. Available since v5.1.

Functions

checkOnERC721Received

Performs an acceptance check for the provided operator by calling IERC721Receiver-onERC721Received on the to address. The operator is generally the address that initiated the token transfer (i.e. msg.sender). The acceptance call is not executed and treated as a no-op if the target address doesn't contain code (i.e. an EOA). Otherwise, the recipient must implement {IERC721Receiver-onERC721Received} and return the acceptance magic value to accept the transfer.

function checkOnERC721Received(address operator, address from, address to, uint256 tokenId, bytes memory data)
    internal;