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elegant651
2020-03-25 13:49:36 +09:00
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nftbapp/backend-nftbapp/build/contracts/ERC721Receiver.json Normal file
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nftbapp/backend-nftbapp/contracts/Auctions.sol Normal file
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pragma solidity ^0.4.24;
import "./MyNFT.sol";
contract Auctions {
Auction[] public auctions;
mapping(address => uint[]) public auctionOwner;
struct Auction {
string name; // 제목
uint256 price; // 가격
string metadata; // 메타데이터 : ipfs hash
uint256 tokenId; // 토큰 아이디
address repoAddress; // nft 컨트랙트 어드레스
address owner; // 소유자
bool active; //활성화 여부
bool finalized; //판매 종료여부
}
function() public {
revert();
}
modifier contractIsNFTOwner(address _repoAddress, uint256 _tokenId) {
address nftOwner = MyNFT(_repoAddress).ownerOf(_tokenId);
require(nftOwner == address(this));
_;
}
function createAuction(address _repoAddress, uint256 _tokenId, string _auctionTitle, string _metadata, uint256 _price) public contractIsNFTOwner(_repoAddress, _tokenId) returns(bool) {
uint auctionId = auctions.length;
Auction memory newAuction;
newAuction.name = _auctionTitle;
newAuction.price = _price;
newAuction.metadata = _metadata;
newAuction.tokenId = _tokenId;
newAuction.repoAddress = _repoAddress;
newAuction.owner = msg.sender;
newAuction.active = true;
newAuction.finalized = false;
auctions.push(newAuction);
auctionOwner[msg.sender].push(auctionId);
emit AuctionCreated(msg.sender, auctionId);
return true;
}
function finalizeAuction(uint _auctionId, address _to) public {
Auction memory myAuction = auctions[_auctionId];
if(approveAndTransfer(address(this), _to, myAuction.repoAddress, myAuction.tokenId)){
auctions[_auctionId].active = false;
auctions[_auctionId].finalized = true;
emit AuctionFinalized(msg.sender, _auctionId);
}
}
function approveAndTransfer(address _from, address _to, address _repoAddress, uint256 _tokenId) internal returns(bool) {
MyNFT remoteContract = MyNFT(_repoAddress);
remoteContract.approve(_to, _tokenId);
remoteContract.transferFrom(_from, _to, _tokenId);
return true;
}
function getCount() public constant returns(uint) {
return auctions.length;
}
function getAuctionsOf(address _owner) public constant returns(uint[]) {
uint[] memory ownedAuctions = auctionOwner[_owner];
return ownedAuctions;
}
function getAuctionsCountOfOwner(address _owner) public constant returns(uint) {
return auctionOwner[_owner].length;
}
function getAuctionById(uint _auctionId) public constant returns(
string name,
uint256 price,
string metadata,
uint256 tokenId,
address repoAddress,
address owner,
bool active,
bool finalized) {
Auction memory auc = auctions[_auctionId];
return (
auc.name,
auc.price,
auc.metadata,
auc.tokenId,
auc.repoAddress,
auc.owner,
auc.active,
auc.finalized);
}
event AuctionCreated(address _owner, uint _auctionId);
event AuctionFinalized(address _owner, uint _auctionId);
}

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nftbapp/backend-nftbapp/contracts/Migrations.sol Normal file
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pragma solidity >=0.4.21 <0.7.0;
contract Migrations {
address public owner;
uint public last_completed_migration;
constructor() public {
owner = msg.sender;
}
modifier restricted() {
if (msg.sender == owner) _;
}
function setCompleted(uint completed) public restricted {
last_completed_migration = completed;
}
function upgrade(address new_address) public restricted {
Migrations upgraded = Migrations(new_address);
upgraded.setCompleted(last_completed_migration);
}
}

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nftbapp/backend-nftbapp/contracts/MyNFT.sol Normal file
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pragma solidity ^0.4.24;
import "../node_modules/zeppelin-solidity/contracts/token/ERC721/ERC721Token.sol";
contract MyNFT is ERC721Token {
constructor (string _name, string _symbol) public
ERC721Token(_name, _symbol) {}
function registerUniqueToken(
address _to,
uint256 _tokenId,
string _tokenURI
) public
{
super._mint(_to, _tokenId);
super._setTokenURI(_tokenId, _tokenURI);
emit TokenRegistered(_to, _tokenId);
}
event TokenRegistered(address _by, uint256 _tokenId);
}

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nftbapp/backend-nftbapp/migrations/1_initial_migration.js Normal file
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var Migrations = artifacts.require("Migrations");
module.exports = function(deployer) {
deployer.deploy(Migrations);
};

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const MyNFT = artifacts.require("./MyNFT.sol");
const Auctions = artifacts.require("./Auctions.sol");
module.exports = async function(deployer) {
deployer.deploy(MyNFT, "MyKlay", "MKlay")
deployer.deploy(Auctions)
};

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nftbapp/backend-nftbapp/test/NFT.js Normal file
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import chai from 'chai'
import chaiAsPromised from 'chai-as-promised'
chai.use(chaiAsPromised)
const { expect, assert } = chai
const MyNFT = artifacts.require("MyNFT");
contract('Test MyNFT contract', function(accounts) {
let token;
const name = "MyKlay"
const symbol = "MKlay"
const account1 = accounts[1]
const tokenId1 = 1111;
const tokenUri1 = "This is data for the token 1"; // Does not have to be unique
const account2 = accounts[2]
const tokenId2 = 2222;
const tokenUri2 = "This is data for the token 2"; // Does not have to be unique
const account3 = accounts[3]
it(' deploy and mint ERC721 token', async () => {
token = await MyNFT.new(name, symbol)
await token.registerUniqueToken(account1, tokenId1, tokenUri1, {from: accounts[0]})
expect(await token.symbol()).to.equal(symbol)
expect(await token.name()).to.equal(name)
})
it(' check unique id', async () => {
const duplicateTokenID = token.registerUniqueToken(account2, tokenId1, tokenUri2, {from: accounts[0]}) //tokenId
expect(duplicateTokenID).to.be.rejectedWith(/VM Exception while processing transaction: revert/)
})
it(' create multiple unique tokens and manage ownership', async () => {
const additionalToken = await token.registerUniqueToken(account2, tokenId2, tokenUri2, {from: accounts[0]})
expect(Number(await token.totalSupply())).to.equal(2)
expect(await token.exists(tokenId1)).to.be.true
expect(await token.exists(tokenId2)).to.be.true
expect(await token.ownerOf(tokenId1)).to.equal(account1)
expect(await token.ownerOf(tokenId2)).to.equal(account2)
})
it(' safe transfer', async () => {
const unownedTokenId = token.safeTransferFrom(account2, account3, tokenId1, {from: accounts[2]}) // tokenId
expect(unownedTokenId).to.be.rejectedWith(/VM Exception while processing transaction: revert/)
const wrongOwner = token.safeTransferFrom(account1, account3, tokenId2, {from: accounts[1]}) // wrong owner
expect(wrongOwner).to.be.rejectedWith(/VM Exception while processing transaction: revert/)
const wrongFromGas = token.safeTransferFrom(account2, account3, tokenId2, {from: accounts[1]}) // wrong owner
expect(wrongFromGas).to.be.rejectedWith(/VM Exception while processing transaction: revert/)
await token.safeTransferFrom(account2, account3, tokenId2, {from: accounts[2]})
expect(await token.ownerOf(tokenId2)).to.equal(account3)
})
})

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nftbapp/backend-nftbapp/truffle-config.js Normal file
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/**
* Use this file to configure your truffle project. It's seeded with some
* common settings for different networks and features like migrations,
* compilation and testing. Uncomment the ones you need or modify
* them to suit your project as necessary.
*
* More information about configuration can be found at:
*
* truffleframework.com/docs/advanced/configuration
*
* To deploy via Infura you'll need a wallet provider (like truffle-hdwallet-provider)
* to sign your transactions before they're sent to a remote public node. Infura API
* keys are available for free at: infura.io/register
*
* You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
* public/private key pairs. If you're publishing your code to GitHub make sure you load this
* phrase from a file you've .gitignored so it doesn't accidentally become public.
*
*/
// const HDWalletProvider = require('truffle-hdwallet-provider');
// const infuraKey = "fj4jll3k.....";
//
// const fs = require('fs');
// const mnemonic = fs.readFileSync(".secret").toString().trim();
require('babel-register')
require('babel-polyfill')
const HDWalletProvider = require("truffle-hdwallet-provider-klaytn");
const NETWORK_ID = '1001'
const URL = 'https://api.baobab.klaytn.net:8651' // testnet
const PRIVATE_KEY = '0x9452f902e6c2751c123db6480cff2d83597b077059be7cb3ab9b47fb555e7da5' //testnet
module.exports = {
/**
* Networks define how you connect to your ethereum client and let you set the
* defaults web3 uses to send transactions. If you don't specify one truffle
* will spin up a development blockchain for you on port 9545 when you
* run `develop` or `test`. You can ask a truffle command to use a specific
* network from the command line, e.g
*
* $ truffle test --network <network-name>
*/
networks: {
// Useful for testing. The `development` name is special - truffle uses it by default
// if it's defined here and no other network is specified at the command line.
// You should run a client (like ganache-cli, geth or parity) in a separate terminal
// tab if you use this network and you must also set the `host`, `port` and `network_id`
// options below to some value.
//
// development: {
// host: "127.0.0.1", // Localhost (default: none)
// port: 8545, // Standard Ethereum port (default: none)
// network_id: "*", // Any network (default: none)
// },
klaytn: {
provider: () => new HDWalletProvider(PRIVATE_KEY, URL),
network_id: NETWORK_ID,
gas: '8500000',
gasPrice: null,
},
// Another network with more advanced options...
// advanced: {
// port: 8777, // Custom port
// network_id: 1342, // Custom network
// gas: 8500000, // Gas sent with each transaction (default: ~6700000)
// gasPrice: 20000000000, // 20 gwei (in wei) (default: 100 gwei)
// from: <address>, // Account to send txs from (default: accounts[0])
// websockets: true // Enable EventEmitter interface for web3 (default: false)
// },
// Useful for deploying to a public network.
// NB: It's important to wrap the provider as a function.
// ropsten: {
// provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/${infuraKey}`),
// network_id: 3, // Ropsten's id
// gas: 5500000, // Ropsten has a lower block limit than mainnet
// confirmations: 2, // # of confs to wait between deployments. (default: 0)
// timeoutBlocks: 200, // # of blocks before a deployment times out (minimum/default: 50)
// skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
// },
// Useful for private networks
// private: {
// provider: () => new HDWalletProvider(mnemonic, `https://network.io`),
// network_id: 2111, // This network is yours, in the cloud.
// production: true // Treats this network as if it was a public net. (default: false)
// }
},
// Set default mocha options here, use special reporters etc.
mocha: {
// timeout: 100000
},
// Configure your compilers
compilers: {
solc: {
// version: "0.5.1", // Fetch exact version from solc-bin (default: truffle's version)
// docker: true, // Use "0.5.1" you've installed locally with docker (default: false)
// settings: { // See the solidity docs for advice about optimization and evmVersion
// optimizer: {
// enabled: false,
// runs: 200
// },
// evmVersion: "byzantium"
// }
}
}
}