First Flight #12: Kitty Connect

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// Import the ERC721 token contract interface

import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
// Contract that can receive ERC721 tokens

contract MyNFTReceiver is IERC721Receiver {

// Event to emit when an NFT is received

event NftReceived(address operator, address from, uint256 tokenId, bytes data);
/**
 * @dev Handles the receipt of an NFT
 * @param operator The address which called `safeTransferFrom` function
 * @param from The address which previously owned the token
 * @param tokenId The NFT identifier which is being transferred
 * @param data Additional data with no specified format
 * @return bytes4 Returns `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
 */
function onERC721Received(
    address operator,
    address from,
    uint256 tokenId,
    bytes calldata data
)
    public
    virtual
    override
    returns (bytes4)
{
    // revert
     revert(true,"");
    // Return the magic value that indicates the contract conforms to the ERC721Receiver interface
    return this.onERC721Received.selector;
}

}