ERC1155创建NFT

Question

pragma solidity ^0.8.0;


//import ERC1155 token contract from OpenZeppelin
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC1155/ERC1155.sol";
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol";

contract NFTXXX is ERC1155, Ownable {

    uint256 public constant Arcadiy = 0;
    uint256 public constant MAX = 1;

    constructor() ERC1155("http://ipfs.io/ipfs/{id}.json") {
        _mint(msg.sender, Arcadiy, 1, "");
        _mint(msg.sender, MAX, 2, "");
    }

    function mint(address account, uint256 id, uint256 amount) public onlyOwner {
        _mint(account, id, amount, "");
    }

    function burn(address account, uint256 id, uint256 amount) public {
        require(msg.sender == account);
        _burn(account, id, amount);

    }
}

图像不出现在OpenSea(testnet)上

有一些json文件是我用来做合同的。

{
"image": "ipfs://bafybeienrrxym2d3b5u7glcvdrz63rztxkue7p4bly4fcsma55nupmxsvy", 
"description": "My first plant",
"name": "Cactus Arcadiy"

}

{
"image": "ipfs://bafybeieh4lcllyimopk6pmacjyx4atgdqsywvsia6nuuq6niucdqxwbq5i", 
"description": "GoodZone is a banya with pool",
"name": "Banya"

}

我认为图片引用(“http://ipfs.io/ipfs/{id}.json"”)有问题，但我没有找到解决办法。

Answer 1

不过，元数据中的图像uri正在工作。

您似乎将http://ipfs.io/ipfs/{id}.json视为NFT的元数据存储位置(实际上并非如此)，这可能会导致错误，就像TOKEN_0 (Arcadiy)试图在http://ipfs.io/ipfs/0.json中检索元数据一样。

因此，您应该用自己的存储地址替换它，即将NFT元数据再次放置到ipfs，并将tokenURI设置为它。