Cancel listed NFT for Sale from Ethereum

Cancel an already listed NFT from Ethereum, on the Aventus network. This is a cross-chain transaction given that it requires communication between the Aventus parachain and the Ethereum blockchain during the lifecycle of the transaction

await api.send.cancelEthereumNftSale(ethereumTransactionHash);

important

You can get the AVN_GATEWAY_URL for all networks here.

Example

const { AvnApi, SetupMode, SigningMode } = require("avn-api");
const AVN_GATEWAY_URL = "https://testnet.gateway.aventus.io";

const singleUserOptions = {
	suri: "0x5392ca60a61aea99fce14358798de93c1bc11c3696a905718738c71fae539c24", // this is from the generated example account
	setupMode: SetupMode.SingleUser,
	signingMode: SigningMode.SuriBased,
};

const avnSdk = new AvnApi(AVN_GATEWAY_URL, singleUserOptions);

// replace with the ethereum transaction hash of the NFT you're trying to cancel.
const ethereumTransactionHash = "0xcd591...72f6";

async function main() {
	await avnSdk.init();
	const api = await avnSdk.apis();

	let request_id = await api.send.cancelEthereumNftSale(
		ethereumTransactionHash
	);
	// Returns a request id
	console.log(request_id);
}

(async () => {
	await main();
})();

You have now successfully submitted a transaction to the AVN to cancel your NFT listing.

Example Result

f1710fe7-141f-43c1-b1bb-6ec33d9b3e9a

JSON-RPC

REQUEST
POST https://AVN_GATEWAY_URL/send

HEADERS
Content-Type: application/json Authorization': bearer <awtToken>

REQUEST PARAMS

• relayer [required] - a string representing the relayer's SS58 address.
• user [required] - a string representing the user's SS58 address.
• payer [required] - a string representing the payer's SS58 address.
• ethereumTransactionHash [required] - a string representing the ethereum transaction hash.
• nonce [required] - string integer value of the current proxy nonce of type 'nft'
• proxySignature [required] - a proof signed by the user allowing the transaction to be proxied.
• feePaymentSignature [required] - a proof signed by the user allowing the relayer fees to be paid.
• paymentNonce [required] - string integer value of the current account payment nonce.

JSON-RPC Example

curl https://AVN-API-URL/send \
    -X POST \
    -H "Content-Type: application/json" \
    -H "Authorization: bearer <awtToken>" \
    -d '{"jsonrpc":"2.0", "method":"proxyCancelListFiatNft", "params":{"relayer":"5FbUQ2kJWLoq...ryTh", "user":"5DAgxVxKmnJ...rSVJDdMr", "payer":"5DAgxVxKmnJ...rSVJDdMr", "ethereumTransactionHash":"0x899697fff9eccfb4de41ad689334751f28a7b5c026e9cf23c4e8ddecb11dcf35", "nonce":"10","proxySignature":"0x7e8fb895d9c33fbfd2b0122...d2a52e6802f40720e192d4ca407d657cdfa703a8ce502e9c4f0feedfc3e5e8b", "feePaymentSignature":"0xaae7983775fc1a5bc04b500af...2f6ce430941856c1259d520759548281afd465b3d66b7e48e72fc2c8c0a3a5bb9f8fa87", "paymentNonce":"209"}, "id":1}'

result - a request ID that can be queried for the transaction's status

JSON-RPC Output

{
	"jsonrpc": "2.0",
	"id": 1,
	"result": "b043df72-5636-49a6-999c-aad1fa574bc5"
}

---

tip

You can query the state of your transaction here using the returned request id.