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How to query more than 50 NFTs using getObjects API?
I'm trying to retrieve a large number of NFTs from a blockchain address but ran into a limit in the getObjects API, which restricts the number of objects I can fetch at a time to 50. What's the correct way to handle this limitation and obtain more results? Is there any specific method or example code for handling pagination?
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Antworten
7Um das Limit von 50 Objekten in der GetObjects-API zu überwinden, sollten Sie die Paginierung verwenden. Dazu wird der von der API bereitgestellte Cursor verwendet, um die nächsten Ergebnisse abzurufen. Beginnen Sie mit einem ersten API-Aufruf und überprüfen Sie dann die Antwort auf Paginierungsdetails wie „nextCursor“ und „hasNextPage“. Verwenden Sie den 'NextCursor' als Parameter in Ihren nachfolgenden API-Aufrufen, bis 'hasNextPage' falsch ist, was darauf hinweist, dass keine weiteren Objekte abgerufen werden müssen.
Informationen zur Implementierung finden Sie in der Sui API-Dokumentation zur Paginierung und zum Abfragen von Objekten. Dazu müssen Sie in der Regel eine Reihe von Anfragen mit dem Cursor stellen, bis Sie alle gewünschten Daten abgerufen haben. Jede Antwort liefert einen Cursor für den nächsten Satz von Objekten, sodass Sie größere Datensätze effektiv verarbeiten können.
You're right, getObjects
is limited and usually used when you already have the specific object IDs. For retrieving objects owned by an address, especially when you need more than 50, you should use the queryObjects
API instead. This API supports pagination using a cursor
. You'll make an initial call, and if hasNextPage
is true, you'll receive a nextCursor
which you then pass into your subsequent calls to fetch the next batch of results. You keep doing this in a loop until hasNextPage
is false, indicating you've retrieved all available objects for that address. You can also filter by object type to specifically target your NFTs.
To query more than 50 NFTs using the getObjects
API, you'll need to use pagination. Here's a step-by-step approach to handle this limitation:
Pagination with getObjects
API
- Initial Request: Make an initial request to the
getObjects
API with the desired filter and limit (up to 50 objects). - Check for Next Page: Check if the response contains a
nextCursor
field. If it does, it means there are more objects available. - Fetch Next Page: Use the
nextCursor
value as thecursor
parameter in the next request to fetch the next page of objects. - Repeat Until No Next Page: Continue fetching pages until the response no longer contains a
nextCursor
field, indicating that you've retrieved all available objects.
Example Code Snippet
Here's an example code snippet demonstrating pagination with the getObjects
API:
import { SuiClient } from '@mysten/sui.js/client';
const suiClient = new SuiClient(); const ownerAddress = '0x...'; // Replace with the owner's address const typeFilter = { Type: '0x2::devnet_nft::DevNetNFT' }; // Replace with the desired type filter
async function getNFTs() { let hasNextPage = true; let cursor = null; const nfts = [];
while (hasNextPage) { const response = await suiClient.getOwnedObjects({ owner: ownerAddress, filter: typeFilter, options: { showType: true, showContent: true, }, limit: 50, cursor, });
nfts.push(...response.data);
if (response.hasNextPage) {
cursor = response.nextCursor;
} else {
hasNextPage = false;
}
}
return nfts; }
getNFTs().then((nfts) => console.log(nfts)); Additional Resources
- Sui Documentation: Refer to the official Sui documentation for more information on pagination and using the
getObjects
API. - Sui Client: Explore the Sui Client documentation for details on implementing pagination and handling large datasets [1].
By using pagination, you can efficiently retrieve a large number of NFTs from a blockchain address while handling the getObjects
API's limit.
When you want to fetch more than 50 NFTs using the getObjects
API in Sui, you need to handle pagination manually since the API limits each request to 50 objects. To work around this, you can use the cursor
parameter to keep track of where you left off and make multiple requests until you've retrieved all the data. Each response includes a nextCursor
value, which you pass into the next request to continue fetching from that point. This way, you can loop through all the NFTs in batches of 50 until there are no more pages left. Here's a basic example in JavaScript using the Sui SDK:
import { SuiClient } from '@mysten/sui.js/client';
const client = new SuiClient({ url: 'https://fullnode.mainnet.sui.io' });
async function fetchAllNFTs(address) {
let hasNextPage = true;
let cursor = null;
const allObjects = [];
while (hasNextPage) {
const response = await client.getOwnedObjects({
owner: address,
cursor: cursor,
limit: 50,
});
allObjects.push(...response.data);
cursor = response.nextCursor;
hasNextPage = response.hasNextPage;
}
return allObjects;
}
This loop keeps calling the API until all NFTs are collected. You can read more about how pagination works in the Sui API documentation.
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