nft-sig-verify

install the dependancies

npm install

run on the local

npm run dev

In the .env file, you should add the PK of the auction contract owner into "COUPON_SIGNING_KEY" and auction contract address into "COUPON_PUBLIC_KEY".

Coupon generator input format

const hashBuffer = generateHashBuffer(
["uint256", "uint256", "uint256", "address", "address"],
[couponType, tokenId, bidPrice, winner, nftAddress]
);

• couponType: 0 for auction, 1 for offer
• tokenId
• bidPrice: the price what the bidder place (it will be 9-decimals)
• winner: winner of auction/offer
• nftAddress