Implementing event tickets as ERC-1155 tokens

eventTicket.sol

// contracts/EventTickets.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.6;
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
contract EventTicket is ERC1155 {
  // Declare all the type IDs
  uint256 public constant GENERAL = 0;
  uint256 public constant VIP = 1;
  uint256 public constant RSVP = 2;

  constructor() public ERC1155("ipfs://storage.link/bafyreidtc6fs4xrnc5b7klvvtrs2bsijkt54qqnonk54stkjj3rtdb5wee/{id}.json") {
    _mint(msg.sender, GENERAL, 10**2, "");
    _mint(msg.sender, VIP, 1, "");
    _mint(msg.sender, RSVP, 20, "");
  }
}