Mint Permissions

Implementations

Basic implementations (ERC721 and ERC1155) of a Mint Permissions contract that works with a singular creator contract are shown below. Note the approveMint function requires the sender to be the configured creator.

ERC721

abstract contract ERC721CreatorMintPermissions is ERC165, AdminControl, IERC721CreatorMintPermissions {
     address internal immutable _creator;

     constructor(address creator_) {
         require(ERC165Checker.supportsInterface(creator_, type(IERC721CreatorCore).interfaceId), "Must implement IERC721CreatorCore");
         _creator = creator_;
     }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165, AdminControl) returns (bool) {
        return interfaceId == type(IERC721CreatorMintPermissions).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721CreatorMintPermissions-approve}.
     */
    function approveMint(address, address, uint256) public virtual override {
        require(msg.sender == _creator, "Can only be called by token creator");
    }
}

ERC155

abstract contract ERC1155CreatorMintPermissions is ERC165, AdminControl, IERC1155CreatorMintPermissions {
     address internal immutable _creator;

     constructor(address creator_) {
         require(ERC165Checker.supportsInterface(creator_, type(IERC1155CreatorCore).interfaceId), "Must implement IERC1155CreatorCore");
         _creator = creator_;
     }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165, AdminControl) returns (bool) {
        return interfaceId == type(IERC1155CreatorMintPermissions).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155CreatorMintPermissions-approve}.
     */
    function approveMint(address, address[] calldata, uint256[] calldata, uint256[] calldata)  public virtual override {
        require(msg.sender == _creator, "Can only be called by token creator");
    }
}

Adding a Mint Permissions Contract

Adding a Mint Permissions contract is similar to registering an extension. Add a mint permissions contract by calling the setMintPermissions function and indicating the registered extension contract and mint permissions contract you wish to set.

For detailed Mint Permissions functions information see Mint Permissions Functions.