erc1155Example.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

// Import OpenZeppelin's ERC-1155 implementation
import "@openzeppelin/contracts@4.9.3/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts@4.9.3/access/Ownable.sol";

/**
 * @title BasicERC1155
 * @dev A simple implementation of an ERC-1155 token contract with minting functionality.
 */
contract BasicERC1155 is ERC1155, Ownable {

    // Constructor sets the initial metadata URI
    constructor(string memory _uri) ERC1155(_uri) {}

    /**
     * @notice Mint new tokens
     * @dev Only the contract owner can mint new tokens.
     * @param account The address to mint tokens to.
     * @param id The token ID to mint.
     * @param amount The number of tokens to mint.
     * @param data Optional data to pass to the receiver (if applicable).
     */
    function mint(
        address account,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public onlyOwner {
        _mint(account, id, amount, data);
    }

    /**
     * @notice Mint multiple tokens at once
     * @dev Only the contract owner can mint multiple tokens.
     * @param to The address to mint tokens to.
     * @param ids An array of token IDs to mint.
     * @param amounts An array of amounts for each token ID.
     * @param data Optional data to pass to the receiver (if applicable).
     */
    function mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public onlyOwner {
        _mintBatch(to, ids, amounts, data);
    }

    /**
     * @notice Update the base metadata URI
     * @dev Only the contract owner can update the URI.
     * @param newuri The new metadata URI.
     */
    function setURI(string memory newuri) public onlyOwner {
        _setURI(newuri);
    }
}