1. 摘要
《第三十三課 如何創(chuàng)建自己的ERC721非同質(zhì)化資產(chǎn)生物商店？》講解了如何使用REMIX本地環(huán)境搭建ERC721非同質(zhì)化資產(chǎn)生物商店，因?yàn)楹霞s相對復(fù)雜，采用solidity import多級合約編輯的方式。
本文采用TRUFFLE框架的形式來發(fā)布建ERC721非同質(zhì)化資產(chǎn)生物商店的內(nèi)容，以便后續(xù)js腳本擴(kuò)展和DAPP開發(fā)。
本文包括內(nèi)容：
（1）環(huán)境準(zhǔn)備
（2）智能合約編譯
（3）配置.env環(huán)境變量
（4）智能合約部署到rinkeby測試網(wǎng)
（5）配置.env環(huán)境和更新ABI
（6）創(chuàng)建ERC721資產(chǎn)
輝哥系統(tǒng)整合出了ERC721從理論到實(shí)踐的文章，可按需查看：
（1）第十七課 【ERC721實(shí)踐】迷戀貓從玩耍到開發(fā)
（2）第三十三課 如何創(chuàng)建自己的ERC721非同質(zhì)化資產(chǎn)生物商店？
（3）第三十四課 采用TRUFFLE框架如何創(chuàng)建自己的ERC721非同質(zhì)化資產(chǎn)生物商店？
（4）第三十五課 如何配置Metadata以便裝飾你的ERC721非同質(zhì)化資產(chǎn)？
2. 內(nèi)容
2.1 環(huán)境準(zhǔn)備
ERC721的智能合約就采用OpenZeppelin的ERC721模板合約。
具體的代碼架構(gòu)和分析輝哥就不展示了，有需要源碼工程的同學(xué)可直接加入輝哥的知識星球下載。
然后在Ubuntu環(huán)境建把工程文件復(fù)制過去。
2.2 智能合約編譯
編譯成功結(jié)果：
duncanwang@ubuntu:~/work/opensea-creatures$ truffle compile
Please set a mnemonic and infura key.
Compiling ./contracts/Creature.sol...
Compiling ./contracts/CreatureFactory.sol...
Compiling ./contracts/CreatureLootBox.sol...
Compiling ./contracts/DeployCreature.sol...
Compiling ./contracts/Factory.sol...
Compiling ./contracts/Migrations.sol...
Compiling ./contracts/Strings.sol...
Compiling ./contracts/TradeableERC721Token.sol...
Compiling openzeppelin-solidity/contracts/AddressUtils.sol...
Compiling openzeppelin-solidity/contracts/introspection/ERC165.sol...
Compiling openzeppelin-solidity/contracts/introspection/SupportsInterfaceWithLookup.sol...
Compiling openzeppelin-solidity/contracts/math/SafeMath.sol...
Compiling openzeppelin-solidity/contracts/ownership/Ownable.sol...
Compiling openzeppelin-solidity/contracts/token/ERC721/ERC721.sol...
Compiling openzeppelin-solidity/contracts/token/ERC721/ERC721Basic.sol...
Compiling openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol...
Compiling openzeppelin-solidity/contracts/token/ERC721/ERC721Receiver.sol...
Compiling openzeppelin-solidity/contracts/token/ERC721/ERC721Token.sol...
Compilation warnings encountered:
...
function baseTokenURI() public view returns (string) {
^ (Relevant source part starts here and spans across multiple lines).
Writing artifacts to ./build/contracts
2.3 配置.env環(huán)境變量
.env的配置內(nèi)容參考：
mnemonic_ropsten=mosquito electric slim hybrid craft charge shrimp digital car wonder term oven
mnemonic_rinkeby=mosquito electric slim hybrid craft charge shrimp digital car wonder term oven
mnemonic_mainnet=
NETWORK="rinkeby"
INFURA_KEY="8ce5ebd357144bef8dceae3de1915e29"
MNEMONIC="mosquito electric slim hybrid craft charge shrimp digital car wonder term oven"
OWNER_ADDRESS=""
NFT_CONTRACT_ADDRESS=""
FACTORY_CONTRACT_ADDRESS=""
其中，
（1）mnemonic_ropsten,mnemonic_rinkeby，MNEMONIC為你的metaMask錢包助記詞，可以從metaMask錢包導(dǎo)出。記得從ropsten，rinkeby測試網(wǎng)水龍頭網(wǎng)址申請一點(diǎn)測試ETH。請不要用輝哥的助記詞哦。
（2）INFURA_KEY為你在infura網(wǎng)絡(luò)申請的KEY，申請地址為https://infura.io/。
（3）NFT_CONTRACT_ADDRESS在部署后才可以獲取。
2.4 智能合約部署到rinkeby測試網(wǎng)
運(yùn)行命令：
truffle migrate --network rinkeby --reset --compile-all
【成功運(yùn)行結(jié)果】
duncanwang@ubuntu:~/work/opensea-creatures$ truffle migrate --network rinkeby --reset --compile-all
{ mnemonic_ropsten: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
mnemonic_rinkeby: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
mnemonic_mainnet: '',
INFURA_KEY: '8ce5ebd357144bef8dceae3de1915e29',
MNEMONIC: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
OWNER_ADDRESS: '0xD1F7922e8b78cBEB182250753ade8379d1E09949',
NFT_CONTRACT_ADDRESS: '',
FACTORY_CONTRACT_ADDRESS: '',
NETWORK: 'rinkeby' }
Compiling ./contracts/Creature.sol...
Compiling ./contracts/CreatureFactory.sol...
Compiling ./contracts/CreatureLootBox.sol...
Compiling ./contracts/DeployCreature.sol...
Compiling ./contracts/Factory.sol...
Compiling ./contracts/Migrations.sol...
Compiling ./contracts/Strings.sol...
Compiling ./contracts/TradeableERC721Token.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/AddressUtils.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/AutoIncrementing.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/Bounty.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/ECRecovery.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/LimitBalance.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/MerkleProof.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/ReentrancyGuard.sol...
...
Compiling ./contracts/openzeppelin-solidity/contracts/token/ERC721/ERC721Basic.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/token/ERC721/ERC721Holder.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/token/ERC721/ERC721Receiver.sol...
Compiling ./contracts/openzeppelin-solidity/contracts/token/ERC721/ERC721Token.sol...
Compilation warnings encountered:
/home/duncanwang/work/opensea-creatures/contracts/Strings.sol:1:1: Warning: Source file does not specify required compiler version!Consider adding "pragma solidity ^0.4.25;"
...
function finalization() internal {
^ (Relevant source part starts here and spans across multiple lines).
Writing artifacts to ./build/contracts
Using network 'rinkeby'.
Running migration: 1_initial_migrations.js
Deploying Migrations...
... 0x69f08d29bcc86b3777e59d88f84fe63ee487ef09b1764b29994e3f1de1ee4625
Migrations: 0x09ce911c5b355a8e9d51ddfa10c1f666bf04e23b
Saving artifacts...
Running migration: 2_deploy_contracts.js
Replacing Creature...
... 0x636f9f4060142298518a36fec820c7b6de1d123342108cd7cf142752cbc17617
Creature: 0x6f155409060919c3035727fd88f437c2d0a83d1a
Saving artifacts...
【說明】
所以，對應(yīng)的生物合約creature的交易地址為https://rinkeby.etherscan.io/tx/0x636f9f4060142298518a36fec820c7b6de1d123342108cd7cf142752cbc17617
和合約地址為 0x6f155409060919c3035727fd88f437c2d0a83d1a
2.5 配置.env環(huán)境和更新ABI
更新.env文件參數(shù)。
OWNER_ADDRESS為ERC721生物商店需要?dú)w屬的以太坊地址，NFT_CONTRACT_ADDRESS為剛才編譯成功的creature合約地址。
OWNER_ADDRESS="0xD1F7922e8b78cBEB182250753ade8379d1E09949"
NFT_CONTRACT_ADDRESS="0x6f155409060919c3035727fd88f437c2d0a83d1a"
修改mint_test.js的NFT_ABI為truffle框架編譯文件Creature.json的JSON內(nèi)容。
2.6 創(chuàng)建ERC721資產(chǎn)
node scripts/mint_test.js
【運(yùn)行成功結(jié)果】
duncanwang@ubuntu:~/work/opensea-creatures$ node scripts/mint_test.js
{ mnemonic_ropsten: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
mnemonic_rinkeby: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
mnemonic_mainnet: '',
INFURA_KEY: '8ce5ebd357144bef8dceae3de1915e29',
MNEMONIC: 'mosquito electric slim hybrid craft change shrimp digital car wonder term oven',
OWNER_ADDRESS: '0xD1F7922e8b78cBEB182250753ade8379d1E09949',
NFT_CONTRACT_ADDRESS: '0x6f155409060919c3035727fd88f437c2d0a83d1a',
FACTORY_CONTRACT_ADDRESS: '',
NETWORK: 'rinkeby' }
Minted creature. Transaction: 0x7406aa1ca11683f8adc4a34cee9d0802bc5863f48106835303a5d9a36537b063
Minted creature. Transaction: 0x27f98c17b9711c1a509f4619c687869fd745016d26d8d0d64e97a991f2822932
Minted creature. Transaction: 0xa37c55cf29670861cc1908cd27cfd44ca84a73c55fc57cd81ab73a9f7ac3e286
Minted creature. Transaction: 0x85ee81892e0456aa63531c5add1880629360023099fa479e2276c3024ce81ab1
Minted creature. Transaction: 0x2217ddf87c614442e90ef5a60ab0976cfa495d2ca0d37ee8afd419b0719a8b7f
Minted creature. Transaction: 0xa89d82f308dc3ce73282a8651e016b3b4f4daffb9b1650121afd6f56e5d29c3b
Minted creature. Transaction: 0x7102b9100eeca5aa5cd0cafb891885d72a1e862bec2d040c58bd4600b489cfc0
Minted creature. Transaction: 0xa990cdaebd316272810734915ece71b61988f7e4155beb837dab4fa58b8780f7
Minted creature. Transaction: 0x0e843118952ef6f0e81777b513879f2155847a4388b654c180602f0012fec3ce
Minted creature. Transaction: 0x14df62607acf9fe296a4a4a5c8d6d5a295ee283b78a05cab3b8138666d524fbe
Minted creature. Transaction: 0xcbb76447fd4102ad7092a1e14446755200a4f321a774898ef85b213072587367
Minted creature. Transaction: 0x38e4ae0155f49506a16f8a701fd31d86ab8c120bb2a4cf7ebb559fd470b4386f
輸入合約地址，可見已創(chuàng)建了12個(gè)ERC721的資產(chǎn)。
https://rinkeby.etherscan.io/address/0x6f155409060919c3035727fd88f437c2d0a83d1a
2.7 發(fā)布生物商店
參考《第三十三課 如何創(chuàng)建自己的ERC721非同質(zhì)化資產(chǎn)生物商店？》文章，在https://rinkeby.opensea.io/get-listed/step-two地址輸入智能合約地址，導(dǎo)入items后，就可以看到OpenSea的店鋪了。
本案例使用的智能合約地址為0x6f155409060919c3035727fd88f437c2d0a83d1a
創(chuàng)建成功后，進(jìn)入賬號可以看到該智能合約對應(yīng)的海洋生物商店。
網(wǎng)址： https://rinkeby.opensea.io/category/creaturev16
