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实操讲解:如何创建自己的ERC721非同质化资产生物商店?

实操讲解:如何创建自己的ERC721非同质化资产生物商店?

辉哥 发布在 技术指南 77720

1、摘要

加密猫游戏开始,非同质化资产NFT的概念深入人心。不过现在社区中讲概念的多,真正落地发布自己ERC721资产的文章没有看到。辉哥这篇文章就来弥补下这个空缺。 本文的内容包括: (1)采用REMIX编译本地工程的方式完成合约编译; (2)采用REMIX IDE完成合约部署; (3)创建自己的ERC721非同质化资产生物; (4)转让ERC721非同质化资产生物; (5)发布自己的ERC721非同质化资产生物商店;

 

2、实操内容

2.1 环境准备

1) 建立目录,复制工程

针对简单的逻辑执行,辉哥认为采用REMIX编译和部署合约的方式远远比采用TRUFFLE方式方便,同时REMIX也可以加载本地包含import合约关系的复杂工程进行编译。不熟悉的同学可参考文章《第三十二课 如何在Windows环境搭建REMIX本地环境,访问本地目录?》完成配置。ERC721的智能合约就采用OpenZeppelin的ERC721模板合约。 具体的代码架构和分析辉哥就不展示了,有需要源码工程的同学可直接加入辉哥的知识星球下载。

https://t.zsxq.com/EiyNbqB

2) 启动REMIX本地编译环境

辉哥的SOLIDITY本地共享目录为"D:\jusanban\doc\50-编码实现\BlockChain",所以辉哥在WINDOWS下启动命令行,输入以下命令:

remixd -s D:\jusanban\doc\50-编码实现\BlockChain --remix-ide https://remix.ethereum.org
命令行参考截图:

 在CHROME浏览器输入https://remix.ethereum.org,点击"Connect to Localhost"的联调按钮,可启动REMIX本地编译环境。

点击"Start to Compile"完成Creature.sol合约编译。

2.2 创建 Creature合约

在辉哥的管理员测试账号"0xd1f7922e8b78cbeb182250753ade8379d1e09949"下,MetaMask的测试网络选择"Rinkeby Test Net",选择部署的构建参数(代理地址)为"0xf57b2c51ded3a29e6891aba85459d600256cf317"。 点击"Deploy"按钮:

 

部署成功的交易链接: https://rinkeby.etherscan.io/tx/0x399cf4c1ed0a7dd52b36612be0c15e56ffce6b119a75024908560461721e38f2 Creature的合约地址:0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1

 

2.3 创建ERC721资产10个

在账号“0xD1F7922e8b78cBEB182250753ade8379d1E09949”下运行挖矿函数10次,创建10个ERC721资产给辉哥账号。 函数定义: function mintTo(address _to) 执行参数: mintTo("0xD1F7922e8b78cBEB182250753ade8379d1E09949") 【执行成功结果】 https://rinkeby.etherscan.io/tx/0x12ed4dc5bca13be134c2258f79d636a4f134a19961444a2b63bc5a23f064f604 查看交易记录,可以看到已从系统地址发布了一个WOLF ERC721给辉哥账号了。

然后再执行9次,再创建其他9个野狼标识资产。 点击辉哥管理账号,可以看到已收到10个ERC721资产。 https://rinkeby.etherscan.io/address/0xd1f7922e8b78cbeb182250753ade8379d1e09949#tokentxnsErc721

 

2.4 转让资产

1) 转给1#给欧阳哥哥

辉哥把野狼标识资产转给野狼队成员,作为野狼队成员的荣誉特征之一。辉哥首先把珍贵的1#通证转移给欧阳哥哥(地址:0x17b1177E0491D25a13a8329a8D2C46621b6ca19F)。 函数声明: function safeTransferFrom( address _from, address _to, uint256 _tokenId ) 函数调用:safeTransferFrom("0xd1f7922e8b78cbeb182250753ade8379d1e09949","0x17b1177E0491D25a13a8329a8D2C46621b6ca19F", 1)

转让成功地址: https://rinkeby.etherscan.io/tx/0x4f56f968748257bf298fd5bcd0e7c2987713bf0086713f410a1ff6dba4af831e 转让成功截图:

 

2) 转给2#给ELLA小姐姐

辉哥也想给ELLA小姐姐转一个野狼队的标识资产,同时祝她2019年新年快乐。ELLA小姐姐的地址:0xcE689dBB962DbF45534Af13e4414cCB2dFC78c30 。 查看https://onlinehextools.com/convert-utf8-to-hex网站, 可以得知"Happy New Year 2019!"的UTF8的 HEX码为"0x20 0x48 0x61 0x70 0x70 0x79 0x20 0x4e 0x65 0x77 0x20 0x59 0x65 0x61 0x72 0x20 0x32 0x30 0x31 0x39 0x21", 剔除" 0x"后的输出为: "0x204861707079204e65772059656172203230313921"。

函数原型: function safeTransferFrom(address _from, address _to,uint256 _tokenId,bytes _data) 调用参数: safeTransferFrom("0xd1f7922e8b78cbeb182250753ade8379d1e09949","0xcE689dBB962DbF45534Af13e4414cCB2dFC78c30",2,"0x204861707079204e65772059656172203230313921")

交易成功的地址: https://rinkeby.etherscan.io/tx/0x6f234589b641cc00af7e54afa757c00427cf3379c01411e35109522820e9b2fb

 

2.5 创建商店

使用OpenSea可创建非同质化资产交易商店。该创建者将在OpenSea上填充您的所有资产,并为您的项目提供专用的店面页面。 点击地址:https://rinkeby.opensea.io/get-listed/step-two

1),输入本次智能合约地址

智能合约地址:0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1 点击"Commit"按钮:

2),导入资产

进入第二步,导入野狼队的10个ERC721资产。

 

Currently loading 4 of 11 items...

This might take a while so take a break and come back a bit later. In fact, just start a conversation on our [discord](https://discord.gg/ga8EJbv), read our [wikis](https://cryptokitties.opensea.io/), or browse our [marketplace](https://rinkeby.opensea.io/assets).

 

3),查看店面

跳转到我的店面主页: https://rinkeby.opensea.io/category/wildwolfteam
 

4),转移给大明

艺术家大明账号地址:0x8fc02f03c15179f8C6D37C3a29FE7A338DC68192 。辉哥通过店面转移一个资产3#给大明。

输入大明地址,点击"Transfer"按钮就转移给大明了。

5),标价出售

把第4个资产标价为0.1 WETH,用于定价出售。 https://rinkeby.opensea.io/assets/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/4 点击"SELL"按钮:
 
选择固定价格0.1 ETH出售,点击"Post Your List":
点击授权后,等候有心人点击购买了。

2.6 资产形象优化

这个店铺资产的图形是采用默认的海洋生物图标,并不是辉哥期望的野狼队标识。 这个需要配置每个资产的MetaData元素。 例如在浏览器输入1# ERC721资产的URI: https://rinkeby-api.opensea.io/api/v1/asset/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/1/ 可以返回由OpenSea配置的ERC721资产特性信息。 辉哥会在下一篇文章详细介绍如何修改ERC721的MetaDATA,让它们跟野狼队的标识LOGO更加匹配。

{
    "token_id": "1",
    "image_url": "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/1.png",
    "image_preview_url": "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1-preview/1.png",
    "image_thumbnail_url": "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1-thumbnail/1.png",
    "image_original_url": "https://storage.googleapis.com/opensea-prod.appspot.com/creature/1.png",
    "animation_url": null,
    "name": "Sprinkles Fisherton",
    "description": "Friendly OpenSea Creature that enjoys long swims in the ocean.",
    "external_link": "https://openseacreatures.io/1",
    "asset_contract": {
        "address": "0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1",
        "name": "Wild Wolf Team",
        "symbol": "WOLF",
        "image_url": null,
        "featured_image_url": null,
        "featured": false,
        "description": null,
        "external_link": null,
        "wiki_link": null,
        "stats": {
            "seven_day_volume": 0,
            "seven_day_change": 0,
            "total_volume": 0,
            "count": 10,
            "num_owners": 3,
            "market_cap": 0,
            "average_price": 0,
            "items_sold": 0
        },
        "traits": {
            "aqua_power": {
                "min": 10,
                "max": 40
            },
            "stamina": {
                "min": 1.2,
                "max": 90.2
            },
            "level": {
                "min": 2,
                "max": 8
            },
            "generation": {
                "min": 1,
                "max": 2
            },
            "stamina_increase": {
                "min": 5,
                "max": 15
            },
            "personality": {
                "sad": 1,
                "boring": 1,
                "sleepy": 1,
                "happy": 1
            },
            "mouth": {
                "pleased": 1,
                "surprised": 1,
                "happy": 1,
                "cute": 1
            },
            "eyes": {
                "content": 1,
                "joy": 1,
                "wink": 1,
                "big": 1,
                "sleepy": 1
            },
            "base": {
                "crab": 1,
                "goldfish": 1,
                "narwhal": 1,
                "jellyfish": 1,
                "starfish": 1,
                "tealfish": 1
            }
        },
        "hidden": true,
        "nft_version": "3.0",
        "schema_name": "ERC721",
        "display_data": {
            "images": [
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/10.png",
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/9.png",
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/8.png",
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/7.png",
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/6.png",
                "https://storage.googleapis.com/opensea-rinkeby/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/5.png"
            ]
        },
        "short_description": null,
        "total_supply": null,
        "owner": null,
        "buyer_fee_basis_points": 0,
        "seller_fee_basis_points": 250
    },
    "owner": {
        "user": null,
        "profile_img_url": "https://storage.googleapis.com/opensea-static/opensea-profile/3.png",
        "address": "0x17b1177e0491d25a13a8329a8d2c46621b6ca19f",
        "config": ""
    },
    "permalink": "https://rinkeby.opensea.io/assets/0x5c1188ac19ce51cd5d2dcd10ff5c749417da42d1/1",
    "background_color": null,
    "auctions": [],
    "sell_orders": null,
    "traits": [
        {
            "trait_type": "generation",
            "value": 2,
            "display_type": "number",
            "max_value": null,
            "trait_count": 3,
            "order": null
        },
        {
            "trait_type": "stamina_increase",
            "value": 10,
            "display_type": "boost_percentage",
            "max_value": null,
            "trait_count": 4,
            "order": null
        },
        {
            "trait_type": "aqua_power",
            "value": 40,
            "display_type": "boost_number",
            "max_value": null,
            "trait_count": 4,
            "order": null
        },
        {
            "trait_type": "personality",
            "value": "sad",
            "display_type": null,
            "max_value": null,
            "trait_count": 3,
            "order": null
        },
        {
            "trait_type": "stamina",
            "value": 2.3,
            "display_type": null,
            "max_value": null,
            "trait_count": 2,
            "order": null
        },
        {
            "trait_type": "level",
            "value": 2,
            "display_type": null,
            "max_value": null,
            "trait_count": 2,
            "order": null
        },
        {
            "trait_type": "mouth",
            "value": "surprised",
            "display_type": null,
            "max_value": null,
            "trait_count": 3,
            "order": null
        },
        {
            "trait_type": "eyes",
            "value": "joy",
            "display_type": null,
            "max_value": null,
            "trait_count": 2,
            "order": null
        },
        {
            "trait_type": "base",
            "value": "starfish",
            "display_type": null,
            "max_value": null,
            "trait_count": 2,
            "order": null
        }
    ],
    "last_sale": null,
    "num_sales": 0,
    "top_bid": null,
    "current_price": null,
    "current_escrow_price": null,
    "listing_date": null,
    "is_presale": false,
    "related_assets": [],
    "orders": [],
    "supports_wyvern": true,
    "visitor_stats": {
        "rank": 3
    }
}

3、参考

1)开发文档导航 2) 在OpenSea登记Rinkeby网络的ERC721资产

文章标签: 教程 以太坊
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