dmm-lib v2.2.7

NFTScan SDK (JavaScript / TypeScript)

The NFTScan SDK is a JavaScript / TypeScript library which provides convenience and quick access to the NFTScan's APIs, it helps developers build new experiences retrieving NFTs and data analysis. We provide a set of endpoints that enable you to fetch ERC721 and ERC1155 NFT assets as well as transactions, collections, marketplace statistics and more.

To use our APIs, You need to register an account on NFTScan open platform OpenAPI Platform and get your API-KEY for making calls to API services.

The daily request limit for a single account is 10,000 general calls. If you have more needs, please upgrade your API plans to OpenAPI Pricing to enhance the number of calls and obtain access to the PRO interfaces.

The SDK currently supports the following chains:

The value of Abbreviation is used in the SDK as an initialization configuration parameter.

Getting started

via npm:

npm install nftscan-sdk

or yarn:

yarn add nftscan-sdk

Then you can import and use the SDK:

import { ErcType, EvmChain, NftscanEvm } from "nftscan-sdk";

const config = {
  apiKey: "<YOUR_API_KEY>", // Replace with your NFTScan API key.
  chain: EvmChain.ETH, // Replace with your chain.
};

const evm = new NftscanEvm(config);

The new NftscanEvm() returns an object that can query the EVM-like chain, for here it is EvmChain.ETH, which stand for the Ethereum blockchain.

The complete enumeration value of EvmChain includes the following:

export enum EvmChain {
  ETH = 'eth',
  BNB = 'bnb',
  ARBITRUM = 'arbitrum',
  GLMR = 'glmr',
  MATIC = 'matic',
  OPTIMISM = 'optimism',
  PLATON = 'platon',
}

And then you can use the object evm to access to the NFTScan API, form example getAssetsByAccount, which can retrieve the assets owned by an account.

const accountAddress = "<ACCOUNT_ADDRESS>"; // Replace with the account address you want to query.
// Access asset-related APIs
evm.asset
  // Retrieve assets owned by an account.
  .getAssetsByAccount(accountAddress, {
    erc_type: ErcType.ERC_721, // Can be erc721 or erc1155
  })
  .then((res) => console.log(res));

// Access transaction-related APIs 
evm.transaction
  // Retrieve transactions by an account
  .getTransactionsByAccount(accountAddress)
  .then((res) => console.log(res));

Except asset and transaction, the NftscanEvm also provides several other objects, for example collection \ statistic \ other, these objects provide different types of APIs.

To query the other EVM-like chain's asset, for example 'Arbitrum', change the config param chain to EvmChain.ARBITRUM:

const evm = new NftscanEvm({
  apiKey: "<YOUR_API_KEY>",
  chain: EvmChain.ARBITRUM, 
});

We also support the Solana blockchain, to access the API, you just need to new NftscanSolana() to get an object.

const sol = new NftscanSolana({ apiKey: "<YOUR_API_KEY>" });
sol.asset
  .getAssetsByAccount("<ACCOUNT_ADDRESS>")
  .then((res) => console.log(res));

Pagination

In general, NFTScan's API that supports pagination will uses the query params cursor as the paging parameter, The return data of the API call will contain the attribute next, you can pass in the next value to the next call.

For example:

let nextCursor = "";
const params = {
  cursor: nextCursor, // A cursor to retrieve the next page
  limit: 20, // Page size
};
const { content, next } = await evm.asset.getAccountMinted("<ACCOUNT_ADDRESS>", params);
// update the nextCursor
nextCursor = next;

NFTScan SDK API

The SDK currently supports all of the NFTScan API endpoints, The distribution of the API is consistent with the NFTScan API.

As follows:

• NFTScan API of EVM

  • Retrieve Assets (new NftscanEvm().asset.*)

    • getAssetsByAccount(): Retrieve assets owned by an account.
    • getAllAssets(): Retrieve all assets owned by an account group by contract address.
    • getAccountMinted(): Retrieve assets minted by an account.
    • PRO getAssetsByContract(): Retrieve assets by contract address.
    • getAssetsByContractAndTokenId(): Retrieve an asset by contract address and token ID.
    • PRO queryAssetsInBatches: Retrieve assets by list of contract address and token ID.
    • PRO queryAssetsByFilters(): Retrieve assets with filters.

  • Retrieve Transactions (new NftscanEvm().transaction.*)

    • PRO getTransactionsByAccount(): Retrieve transactions by an account.
    • PRO getTransactionsByContract(): Retrieve transactions by contract address.
    • PRO getTransactionsByContractAndTokenId(): Retrieve transactions by contract address and token ID.
    • PRO getTransactionsByToAddress(): Retrieve transactions by to address.
    • PRO queryTransactionsByFilters(): Retrieve transactions with filters.
    • PRO queryTransactionsByTxHashList(): Retrieve transactions by the list of transaction hash.

  • Retrieve Collections (new NftscanEvm().collection.*)

    • PRO getCollectionsByContract(): Retrieve a collection by contract address.
    • PRO getCollectionsByRanking(): Retrieve collections by ranking.
    • PRO queryCollectionsByFilters(): Retrieve collections with filters.

  • Statistics (new NftscanEvm().statistic.*)

    • getTradeRanking(): Obtain trade ranking statistics.
    • PRO getCollectionRanking(): Obtain collection ranking statistics.
    • PRO getCollectionTrade(): Obtain collection trade distribution.
    • PRO getCollectionTrending(): Obtain collection trending statistics.
    • PRO getAccountOverview(): Obtain account overview statistics.
    • getMarketplaceRanking(): Obtain marketplace ranking statistics.
    • getMarketCapRanking(): Obtain market cap ranking statistics
    • PRO getCollectionStatistics(): Obtain collection statistics.
    • getMintRanking(): Obtain mint ranking statistics.
    • getMintAmount(): Obtain mint amount statistics.
    • getTradersRanking(): Obtain traders ranking statistics.
    • getGasRanking(): Obtain traders ranking statistics.
    • getVolumeIn24h(): Obtain 24h volume statistics.

  • Other (new NftscanEvm().other.*)

    • getBlockNumber(): Obtain latest block number.
    • PRO queryAssestAmountByAccounts(): Obtain asset amount owned by accounts.
    • PRO getAssetOwnerByContract(): Obtain asset owner amount by contract address.
    • PRO getAssetOwnerByContractAndTokenId(): Obtain asset owner amount by contract address and token ID.
    • PRO refreshMetadata(): Submit a task for refreshing NFT metadata.

• NFTScan API of Solana

  • Retrieve Assets (new NftscanSolana().asset.*)

    • getAssetsByAccount(): Retrieve assets owned by an account.
    • getAllAssets(): Retrieve all assets owned by an account group by collection.
    • getAccountMinted(): Retrieve assets minted by an account.
    • PRO getAssetsByCollection(): Retrieve assets by collection.
    • getAssetsByTokenAddress(): Retrieve an asset by token address.

  • Retrieve Transactions (new NftscanSolana().transaction.*)

    • getTransactionsByAccount(): Retrieve transactions by an account.
    • getTransactionsByCollection(): Retrieve transactions by collection.
    • getTransactionsByTokenAddress(): Retrieve transactions by token address.

  • Retrieve Collections (new NftscanSolana().collection.*)

    • PRO getCollection(): Retrieve a collection.
    • PRO queryCollectionsByFilters(): Retrieve collections with filters.

  • Statistics (new NftscanSolana().statistic.*)

    • getTradeRanking(): Obtain trade ranking statistics.

More

• NFTScan API
• NFTScan API Docs
• NFTScan NFT Explorer