Discussion on: How to Build a Full Stack NFT Marketplace - V2 (2022)

[Mateus Ferreira]

Hey there! its a modifier that you're missing. I added this to my contract so I can use it in functions to ensure only the item's owner can execute it:

    modifier onlyItemOwner(uint256 id) {
        require(
            idToMarketItem[id].owner == msg.sender,
            "Only product owner can do this operation"
        );
        _;
    }

[Javilonte]

thanksss