MOVE共学营TASK3教程

🧑‍💻作者：gracecampo

MOVE共学营中的TASK3教程

1. 代码部分

定义NFT结构体

public struct GRACECAMPO_NFT has store, key {
id: UID,
name: string::String,
description: string::String,
url: Url,
}

定义监听事件

public struct GRACECAMPO_NFT_Minted has copy, drop {
object_id: ID,
creator: address,
name: string::String,
}

定义铸造函数

public entry fun mint_to_sender(
name: vector<u8>,
description: vector<u8>,
url: vector<u8>,
ctx: &mut TxContext
) {
let sender = tx_context::sender(ctx);
let nft = GRACECAMPO_NFT {
id: object::new(ctx),
name: string::utf8(name),
description: string::utf8(description),
url: url::new_unsafe_from_bytes(url),
};

    event::emit(GRACECAMPO_NFT_Minted {
        object_id: object::id(&nft),
        creator: sender,
        name: nft.name,
    });

    transfer::public_transfer(nft, sender);
}

>定义转移函数,
```sui move
    public entry fun transfer(
        nft: GRACECAMPO_NFT, recipient: address, _: &mut TxContext
    ) {
        transfer::public_transfer(nft, recipient)
    }
    public entry fun update_description(
        nft: &mut GRACECAMPO_NFT,
        new_description: vector<u8>,
        _: &mut TxContext
    ) {
        nft.description = string::utf8(new_description)
    }

2. 铸造NFT

调用铸造函数

sui client call --package PACKAGEID --module GRACECAMPO_NFT --function mint_to_sender args NFT名称 NFT描述 NFT图片地址

调用成功后，需要记录NFT的OBJECTID,方便区块浏览器查看

3. 转移NFT

转移NFT

sui client call --package PACKAGEID --module GRACECAMPO_NFT --function transfer args NFT-OBJECTID recipient-address

调用成功后，需要记录交易hash,方便区块浏览器查看

合约中的铸造和转移函数声明为entry,如果不熟悉命令行调用也可支持在区块浏览器调用

4. 查看交易信息

查看NFT信息：(注意合约发布环境)

测试网

https://suiscan.xyz/testnet/object/NFT-OBJECTID

https://suiscan.xyz/testnet/tx/transfer-hash

主网

https://suiscan.xyz/mainnet/object/NFT-OBJECTID

https://suiscan.xyz/mainnet/tx/transfer-hash

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