ERC721 safeMint and Web3js

Smart Contracts
,
1

Hi guys! I wrote a basic ERC721 contract with the code generator from OpenZeppelin. It works perfectly with all of its functions but the most i use are the safeMint and ownerOf ones.
I'm developing a frontend nodejs application so i'm using web3js.
leaving here the smart contract code

pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

contract CarbonFootprint is ERC721, ERC721Enumerable, Ownable {
    using Counters for Counters.Counter;

    Counters.Counter private _tokenIdCounter;
    
    constructor() ERC721("CarbonFootprint", "CFP") {}
//la funzione seguente crea un nuovo NFT e aggiorna il contatore NFT
    function safeMint(address to) public {
        uint256 tokenId = _tokenIdCounter.current();
        _tokenIdCounter.increment();
        _safeMint(to, tokenId);
    }

    // The following functions are overrides required by Solidity.

    function _beforeTokenTransfer(address from, address to, uint256 tokenId)
        internal
        override(ERC721, ERC721Enumerable)
    {
        super._beforeTokenTransfer(from, to, tokenId);
    }

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, ERC721Enumerable)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
}

What i wanted to ask is: who generates the nft when the function safeMint is called? testing with remix i get this

"args": {
			"0": "0x0000000000000000000000000000000000000000",
			"1": "0xbD1d346577a444143E308BAbE1aa279e26e5f595",
			"2": "2",
			"from": "0x0000000000000000000000000000000000000000",
			"to": "0xbD1d346577a444143E308BAbE1aa279e26e5f595",
			"tokenId": "2"
		}

so i went and called this function:

carbonFootprintInstance.methods.safeMint(address).send({
        from:'0x0000000000000000000000000000000000000000',
        gasPrice: web3.utils.toHex(0),
        gasLimit: web3.utils.toHex(5000000)
    })

but it tells me that the account doesnt exist. I want the nft to be created from scratch (hence the 0x000 account) and assign it to someone (the "address" variable).
It works perfectly if instead of the 0x000 account i put an existing one, but is there any way to use the 0x0000?

2

in the from of web3.js you have to place the wallet that executes that function, in that case the one that is connected to your dapp

3

oh, so the token is still minted from 0x0000000 but the action is requested by the "from" right?

4

Yes, that is already done by the smart contract

5

ok, thanks! still new to the smart contract environment so i think i confused the two.