Build Calldata

The NiftyConnect exchange contract provides a method to build calldata which is necessary in makeOrder and takeOrder.

const sellCalldata = await niftyConnectExchangeInst.buildCallData(
    ERC721TransferSelector, // uint selector,
    nftOwner, // address from,
    "0x0000000000000000000000000000000000000000", // address to,
    TestERC721.address,// address nftAddress,
    tokenId, // uint256 tokenId,
    ERC721_AMOUNT,// uint256 amount,
    "0x0000000000000000000000000000000000000000000000000000000000000000", // bytes32 merkleRoot
    [],// bytes32[] memory merkleProof
);

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,
    "0x0000000000000000000000000000000000000000000000000000000000000000", // bytes32 merkleRoot
    [],// bytes32[] memory merkleProof
);

The above is js example to call the util method.

name	type	description
selector	uint256	Refer to NFT Transfer Selector
from	address	NFTOwner address. When making buy orders, leave it to zero.
to	address	NFT recipient address. When making sell orders, leave it to zero.
nftAddress	address	NFT contract address
tokenId	uint256	NFT asset token id
amount	uint256	For ERC721, the amount must be 1. For ERC1155, its value should be no more than the nftOwner balance
merkleRoot	bytes32	Only used in trait-based order, leave it to zero for other scenarios
merkleProof	bytes32[]	Only used in trait-based order, leave it to empty for other scenarios