Cancel an auction on a marketplace using Ternoa-JS
This function cancels an auctioned NFT from a marketplace on the Ternoa chain. It returns an object promise containing the AuctionCancelledEvent provided by the Ternoa blockchain.
Use your own account by updating the //TernoaTestAccount with your account seed when retrieving the keyring from the example below. Replace the NFT_ID with the existing one to cancel. Note: This transaction can only be submitted if the auction has not started yet.
import {
cancelAuction,
initializeApi,
getKeyringFromSeed,
WaitUntil,
} from "ternoa-js";
const cancelAuctionNFT = async () => {
try {
await initializeApi();
const keyring = await getKeyringFromSeed("//TernoaTestAccount");
const NFT_ID = // update with the auctioned nft id you want to cancel.
const res = await cancelAuction(
NFT_ID,
keyring,
WaitUntil.BlockInclusion
);
console.log(`Auction cancelled for NFT id: ${res.nftId}`);
} catch (e) {
console.error(e);
}
};
The expected params
`nftId`: The ID of the auctioned NFT to cancel.
`keyring`: The provided keyring (containing the address) will be used to sign the transaction and pay the execution fee.
`waitUntil`: WaitUntil defines at which point we want to get the results of the transaction execution: BlockInclusion or BlockFinalization.
Response
The response provided from the blockchain event includes all the information below according to the parameters provided when canceling an auction.
`nftId`: NFT id of the canceled auction.
End an auction on a marketplace using Ternoa-JS
This function ends an auctioned NFT from a marketplace on the Ternoa chain. It returns an object promise containing the AuctionCompletedEvent provided by the Ternoa blockchain.
Use your own account by updating the //TernoaTestAccount with your account seed when retrieving the keyring from the example below. Replace the NFT_ID with the existing one to end. Note: This transaction can only be submitted if the auction has entered the ending period.
import {
endAuction,
initializeApi,
getKeyringFromSeed,
WaitUntil,
} from "ternoa-js";
const endAuctionNFT = async () => {
try {
await initializeApi();
const keyring = await getKeyringFromSeed("//TernoaTestAccount");
const NFT_ID = // update with the auctioned nft id you want to end.
const res = await endAuction(
NFT_ID,
keyring,
WaitUntil.BlockInclusion
);
console.log(`Auction ended for NFT id: ${res.nftId}`);
} catch (e) {
console.error(e);
}
};
The expected params
`nftId`: The ID of the auctioned NFT to end.
`keyring`: The provided keyring (containing the address) will be used to sign the transaction and pay the execution fee.
`waitUntil`: WaitUntil defines at which point we want to get the results of the transaction execution: BlockInclusion or BlockFinalization.
Response
The response provided from the blockchain event includes all the information below according to the parameters provided when ending an auction.
`nftId`: NFT id auctioned.
`newOwner`: The new NFT owner.
`amount`: The NFT price as a string corresponding to the value in a big number.
`amountRounded`: The NFT price as a number.
`marketplaceCut`: The marketplace commission fee on the auctioned NFT as a string corresponding to the value in a big number.
`marketplaceCutRounded`: The marketplace commission fee on the auctioned NFT as a number.
`royaltyCut`: The NFT creator royalty fee on the auctioned NFT as a string corresponding to the value in a big number.
`royaltyCutRounded`: The NFT creator royalty fee on the auctioned NFT as a number.
Support
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