---
# System prepended metadata

title: ERC 1155

---

# ERC 1155 
```
// contracts/GameItems.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;


import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.2.0/contracts/token/ERC1155/ERC1155.sol";


contract GameItems is ERC1155 {
    uint256 public constant GOLD = 0;
    uint256 public constant SILVER = 1;
    uint256 public constant THORS_HAMMER = 2;
    uint256 public constant SWORD = 3;
    uint256 public constant SHIELD = 4;
    uint256 public constant BABYPIG = 5;


    constructor() public ERC1155("https://abcoathup.github.io/SampleERC1155/api/token/{id}.json") {
        _mint(msg.sender, GOLD, 10**18, "");
        _mint(msg.sender, SILVER, 10**27, "");
        _mint(msg.sender, THORS_HAMMER, 1, "");
        _mint(msg.sender, SWORD, 10**9, "");
        _mint(msg.sender, SHIELD, 10**9, "");
        _mint(msg.sender, BABYPIG, 1, "");
    }
}

```