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ERC721 Signature Mint

The ERC721SignatureMint smart contract uses the ERC721Base base contract along with the SignatureMintERC721 contract extension.

Signature minting uses EIP-712, and is a way for a contract admin to authorize an external party's request to mint tokens on the admin's contract. At a high level, this means you can authorize some external party to mint tokens on your contract, and specify what exactly will be minted by that external party.

Learn more about signature-based minting

Unlocked Features​

Once deployed, you can use the features made available by these contracts on the SDK and dashboard:

ERC721 Standard
Mintable
Batch Mintable
Signature Minting
Contract Metadata
Ownable
Royalties
Primary Sale

Implementing the Contract​

Import the contract extension and make your contract inherit it.

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "@thirdweb-dev/contracts/base/ERC721SignatureMint.sol";

contract MyNFT is ERC721SignatureMint {
    constructor(
        string memory _name,
        string memory _symbol,
        address _royaltyRecipient,
        uint128 _royaltyBps,
        address _primarySaleRecipient
    )
        ERC721SignatureMint(
            _name,
            _symbol,
            _royaltyRecipient,
            _royaltyBps,
            _primarySaleRecipient
        )
    {}
}