How to retrieve tokenIds from the lazyMint method
In this guide, we'll explore how to retrieve tokenIds using the lazy method in your drop-type smart contracts.
You have to parse the event which the contract emits when lazy minting. For thirdweb’s Drop contracts, the event is called TokensLazyMinted
import { getContract, parseEventLogs } from "thirdweb";
import { lazyMint, tokensLazyMintedEvent } from "thirdweb/extensions/erc721";
const contract = getContract({
client: yourThirdwebClient,
address: "your-contract-address",
chain: yourChain
});
const sampleMetadata = [
{ name: "nft test" },
{ name: "nft test 2" }
];
const transaction = await lazyMint({
contract,
nfts: sampleMetadata,
});
const data = await sendAndConfirmTransaction({
account: wallet, // could be a private key wallet
transaction,
});
const event = parseEventLogs({
logs: data.logs,
events: [tokensLazyMintedEvent],
});
const startingIndex = event[0].args.startTokenId;
const endingIndex = event[0].args.endTokenId;
const result: bigint[] =
[...Array(Number(endingIndex - startingIndex + 1))]
.map((_, i) => startingIndex + BigInt(i));
// -- end of code -- //
// Note that if you are using ethers v5, you can try this instead:
const results = [];
for (let id = startingIndex; id.lte(endingIndex); id = id.add(1)) {
results.push(id);
}That’s it, its that simple & easy!
Can’t get this working? If you’ve followed the above and still have issues, contact our support team for help.
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