NFT Birth Certificate Solidity Code

nft_birth_certificate.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract BirthCertificateNFT is ERC721, Ownable {
    struct BirthCertificate {
        string childName;
        uint256 dateOfBirth;
        string placeOfBirth;
        string sex;
        string parent1Name;
        string parent2Name;
        // Additional fields such as parent's occupation, address, etc. can be added here
    }

    mapping(uint256 => BirthCertificate) private _birthCertificates;
    uint256 private _tokenCounter;

    constructor() ERC721("BirthCertificateNFT", "BCNFT") {}

    function issueBirthCertificate(
        address recipient,
        string calldata childName,
        uint256 dateOfBirth,
        string calldata placeOfBirth,
        string calldata sex,
        string calldata parent1Name,
        string calldata parent2Name
        // Additional fields can be added as function parameters
    ) external onlyOwner {
        _tokenCounter++;
        _safeMint(recipient, _tokenCounter);
        _birthCertificates[_tokenCounter] = BirthCertificate(childName, dateOfBirth, placeOfBirth, sex, parent1Name, parent2Name);
    }

    function getBirthCertificate(uint256 tokenId) external view returns (BirthCertificate memory) {
        return _birthCertificates[tokenId];
    }

    // Enable the ABI Encoder v2
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721) returns (bool) {
        return super.supportsInterface(interfaceId);
    }
}