CoreETH

Has the lowest gas costs, however, bids can only be placed in ETH and no other auction features are supported.

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note

All deployed addresses can be found on the Auctions introduction page.

Check out the Key Considerations 🔑 section before getting started.

Auction Structure

• seller: The address of the seller
• reservePrice: The reserve price to start the auction
• sellerFundsRecipient: The address where funds are sent after the auction
• highestBid: The highest bid of the auction
• highestBidder: The address of the highest bidder
• duration: The length of time that the auction runs after the first bid is placed
• startTime: The time that the first bid can be placed
• firstBidTime: The time that the first bid is placed

struct Auction {    address seller;    uint96 reservePrice;    address sellerFundsRecipient;    uint96 highestBid;    address highestBidder;    uint32 duration;    uint32 startTime;    uint32 firstBidTime;}

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Functions

supportsInterface

Implements EIP-165 for standard interface detection.

function supportsInterface(bytes4 _interfaceId) returns (bool)

createAuction

Creates an auction for a given ERC-721 NFT. There can only be one auction at a time for a given NFT.

function createAuction(    address _tokenContract,    uint256 _tokenId,    uint256 _duration,    uint256 _reservePrice,    address _sellerFundsRecipient,    uint256 _startTime) 

setAuctionReservePrice

Updates the auction reserve price for a given NFT

function setAuctionReservePrice(    address _tokenContract,    uint256 _tokenId,    uint256 _reservePrice)

cancelAuction

Cancels the auction for a given NFT.

function cancelAuction(address _tokenContract, uint256 _tokenId)

createBid

Places a bid on the auction for a given NFT. The bid percentage difference must be greater than or equal to 10% of the previous bid.

function createBid(address _tokenContract, uint256 _tokenId)

settleAuction

Ends the auction for a given NFT by sending the NFT to the highest bidder and the funds to the seller. Note, that this module honors royalty payouts.

function settleAuction(address _tokenContract, uint256 _tokenId)