Fix Price List Guide
The fix price list order is used to sell a nft asset at a given price. Anyone who wants to buy the nft asset at the given price can take the order.
const Web3 = require('web3');
const crypto = require('crypto');
const keccak256 = require('keccak256');
const { expectRevert, time, expectEvent } = require('@openzeppelin/test-helpers');
const niftyConnectExchangeInst = await NiftyConnectExchange.deployed();
const testERC721Inst = await TestERC721.deployed();
const nftOwner = accounts[1];
const makerRelayerFeeRecipient = accounts[2];
/* Make Order */
// Step 1: Mint ERC721 token and setApprovalForAll
const tokenId = await testERC721Inst.tokenIdIdx();
await testERC721Inst.mint(nftOwner, {from: nftOwner});
await testERC721Inst.setApprovalForAll(NiftyConnectExchange.address, true, {from: nftOwner});
// Step 2: Calculate list time, expire time and generate random salt
const listtime = Math.floor(Date.now() / 1000);
const expireTime = web3.utils.toBN(listtime).add(web3.utils.toBN(3600)); // expire at one hour later
const salt = "0x" + crypto.randomBytes(32).toString("hex");
// Step 3: Set sell price and amount
const exchangePrice = web3.utils.toBN(1e18);
const ERC721_AMOUNT = web3.utils.toBN(1); // ERC721 amount must be 1
// Step 4: Select nft transfer selector
const ERC721TransferSelector = web3.utils.toBN(0);
// Step 5: Calculate replacementPattern
const sellReplacementPattern = generateSellReplacementPatternForNormalOrder(false)
// Step 6: Make Fix Price Order
await niftyConnectExchangeInst.makeOrder_(
[ // address[9] addrs,
NiftyConnectExchange.address, // exchange address
nftOwner, // maker address
"0x0000000000000000000000000000000000000000", // taker address
makerRelayerFeeRecipient, // maker relayer fee recipient
TestERC721.address, // nft contract address
"0x0000000000000000000000000000000000000000", // staticTarget
TestERC20.address, // paymentToken
nftOwner, // from
"0x0000000000000000000000000000000000000000" // to
],
[ // uint[9] uints,
exchangePrice, // uint basePrice
web3.utils.toBN(0), // uint extra
listtime, // uint listingTime
expireTime, // uint expirationTime
web3.utils.toBN(salt), // uint salt
ERC721TransferSelector, // uint merkleValidatorSelector
tokenId, // uint tokenId
ERC721_AMOUNT, // uint amount
0, // uint totalLeaf
],
1, // side (0 buy,1 sell)
0, // Kind of sale (0 fixPrice buy/sell, 1 Auction)
sellReplacementPattern, // replacementPattern
[], // staticExtradata
[
"0x0000000000000000000000000000000000000000000000000000000000000000", // merkle root hash, for trait-based order
"0x0000000000000000000000000000000000000000000000000000000000000000" // ipfs hash which contain the metadata of merkle proof, for trait-based order
], // merkleData
{from: nftOwner}
);
/* Take Order */
const buyer = accounts[3];
const takerRelayerFeeRecipient = accounts[4];
// Step 1: parse order parameters
const orderApprovedPartTwoEvent = expectEvent.inLogs(makeOrdertx.logs, 'OrderApprovedPartTwo');
const sellCalldata = orderApprovedPartTwoEvent.args.calldata;
// Step 2: generate buy order calldata
const buyCalldata = await niftyConnectExchangeInst.buildCallData(
ERC721TransferSelector, // uint selector,
"0x0000000000000000000000000000000000000000", // address from,
buyer, // address to,
TestERC721.address,// address nftAddress,
tokenId, // uint256 tokenId,
ERC721_AMOUNT,// uint256 amount,
"0x00", // bytes32 merkleRoot
[],// bytes32[] memory merkleProof
);
// Step 3: Calculate replacementPattern for buyOrder
const buyReplacementPattern = generateBuyReplacementPatternForNormalOrder(false)
// Step 4: Take Order
await niftyConnectExchangeInst.takeOrder_(
[ // address[16] addrs,
//buy order
NiftyConnectExchange.address, // exchange
buyer, // maker
"0x0000000000000000000000000000000000000000", // taker
makerRelayerFeeRecipient, // makerRelayerFeeRecipient
"0x0000000000000000000000000000000000000000", // takerRelayerFeeRecipient
TestERC721.address, // nftAddress
"0x0000000000000000000000000000000000000000", // staticTarget
TestERC20.address, // paymentToken
//sell order
NiftyConnectExchange.address, // exchange
nftOwner, // maker
buyer, // taker
"0x0000000000000000000000000000000000000000", // makerRelayerFeeRecipient
takerRelayerFeeRecipient, // takerRelayerFeeRecipient
TestERC721.address, // nftAddress
"0x0000000000000000000000000000000000000000", // staticTarget
TestERC20.address, // paymentToken
],
[ // uint[12] uints,
//buy
exchangePrice, // uint basePrice
web3.utils.toBN(0), // uint extra
timestamp, // uint listingTime
expireTime, // uint expirationTime
web3.utils.toBN(salt), // uint salt
tokenId, // uint tokenId
//sell
exchangePrice, // uint basePrice
web3.utils.toBN(0), // uint extra
timestamp, // uint listingTime
expireTime, // uint expirationTime
web3.utils.toBN(salt), // uint salt
tokenId, // uint tokenId
],
[ // uint8[4] sidesKinds,
0, 0,
1, 0
],
buyCalldata, // bytes calldataBuy,
sellCalldata, // bytes calldataSell,
buyReplacementPattern, // bytes replacementPatternBuy,
sellReplacementPattern, // bytes replacementPatternSell,
[],// bytes staticExtradataBuy,
[],// bytes staticExtradataSell,
"0x0000000000000000000000000000000000000000000000000000000000000000", // bytes32 rssMetadata, hex encoding ipfsHash
{from: buyer}
);
Last modified 10mo ago