withdrawERC721
Withdraw ERC-721 token from one user and returns a Voucher
to the recipient on L1.
The voucher still need to be created through a createVoucher call.
Usage
The following example withdraws the token 1 of the user who is submitting an input to the application.
import { createApp } from "@deroll/app";
import { createWallet } from "@deroll/wallet";
// create app
const app = createApp({ url: "http://127.0.0.1:5004" });
// create wallet
const wallet = createWallet();
app.addAdvanceHandler(wallet.handler);
const token = "0xc6582A9b48F211Fa8c2B5b16CB615eC39bcA653B"; // NFT address
app.addAdvanceHandler(async ({ metadata }) => {
const user = metadata.msg_sender;
const hasOne = wallet.erc721Has(token, user, 1n);
if (hasOne) {
const voucher = wallet.withdrawERC721(token, user, 1n);
await app.createVoucher(voucher);
}
return "accept";
});
Returns
Type: Voucher
Parameters
Type: Address
Address of ERC-721 token.
Type: string
User to withdraw from.
Type: bigint
Amount to withdraw.