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I think I saw it somewhere before but can't find it again. I need to allow only the contract owner to mint ERC721 token in the contract. Correct me, I think it has to do with using require. I could try to code it but I'd like to follow best practices thus I'm looking for opinions.

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You can either use Ownable https://docs.openzeppelin.com/contracts/2.x/access-control#ownership-and-ownable and use onlyOwner modifier on your function;

function mint() onlyOwner {
}

or you can use:

require(msg.sender == owner, "Must be owner");

variable address owner should be initialized beforehand.

msg.sender is the sender of the transaction

Ownable has a lot of features, like transferOwnership, renounceOwnership, getter and events

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  • Awesome. Super clear. Thank you.
    – ratib90486
    Mar 18, 2022 at 12:16

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