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我正在尝试编写一个脚本来通过糖果机 id 提取 NFT，但它要么失败，要么每次都返回一个空数组。

我正在使用genesysgo主网rpc。

这是相关的代码。

const rpc = process.env.REACT_APP_RPC_HOST!;
const connection = new Connection(rpc);

export const CANDY_MACHINE_V2_PROGRAM = new anchor.web3.PublicKey(
  "cndy3Z4yapfJBmL3ShUp5exZKqR3z33thTzeNMm2gRZ"
);

export const TOKEN_METADATA_PROGRAM = new anchor.web3.PublicKey(
  "metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s"
);

const MAX_NAME_LENGTH = 32;
const MAX_URI_LENGTH = 200;
const MAX_SYMBOL_LENGTH = 10;
const MAX_CREATOR_LEN = 32 + 1 + 1;
const MAX_CREATOR_LIMIT = 5;
const MAX_DATA_SIZE =
  4 +
  MAX_NAME_LENGTH +
  4 +
  MAX_SYMBOL_LENGTH +
  4 +
  MAX_URI_LENGTH +
  2 +
  1 +
  4 +
  MAX_CREATOR_LIMIT * MAX_CREATOR_LEN;

export const MAX_METADATA_LEN = 1 + 32 + 32 + MAX_DATA_SIZE + 1 + 1 + 9 + 172;
export const CREATOR_ARRAY_START =
  1 +
  32 +
  32 +
  4 +
  MAX_NAME_LENGTH +
  4 +
  MAX_URI_LENGTH +
  4 +
  MAX_SYMBOL_LENGTH +
  2 +
  1 +
  4;

async function getCandyMachineCreator(
  candyMachineId: PublicKey
): Promise<[PublicKey, number]> {
  return await PublicKey.findProgramAddress(
    [Buffer.from("candy_machine"), candyMachineId.toBuffer()],
    CANDY_MACHINE_V2_PROGRAM
  );
}

async function getMintsByCandyMachineId(candyMachineId: StringPublicKey) {
  const key = new PublicKey(candyMachineId);
  const [firstCreatorAddress] = await getCandyMachineCreator(key);
  const metadataAccounts = await connection.getProgramAccounts(
    TOKEN_METADATA_PROGRAM,
    {
      // The mint address is located at byte 33 and lasts for 32 bytes.
      dataSlice: { offset: 33, length: 32 },

      filters: [
        // Only get Metadata accounts.
        { dataSize: MAX_METADATA_LEN },

        // Filter using the first creator.
        {
          memcmp: {
            offset: CREATOR_ARRAY_START,
            bytes: firstCreatorAddress.toBase58(),
          },
        },
      ],
    }
  );

  return metadataAccounts.map((metadataAccountInfo) =>
    bs58.encode(metadataAccountInfo.account.data)
  );
}

我也尝试过使用Solana NFT Tools和Magic Eden 的 Hash List Tool。它们还返回空数组。NFT 在链上，它们在我的钱包里，所以我有点不知所措。

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