交易历史

const fetchAllTransactions = async () => {
  const walletAddress = "2k5AXX4guW9XwRQ1AKCpAuUqgWDpQpwFfpVFh3hnm2Ha"; // Replace with target wallet
  const baseUrl = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY`;
  let url = baseUrl;
  let lastSignature = null;
  let allTransactions = [];
  
  while (true) {
    if (lastSignature) {
      url = baseUrl + `&before-signature=${lastSignature}`;
    }
    
    const response = await fetch(url);
    
    // Check response status
    if (!response.ok) {
      console.error(`API error: ${response.status}`);
      break;
    }
    
    const transactions = await response.json();
    
    if (transactions && transactions.length > 0) {
      console.log(`Fetched batch of ${transactions.length} transactions`);
      allTransactions = [...allTransactions, ...transactions];
      lastSignature = transactions[transactions.length - 1].signature;
    } else {
      console.log(`Finished! Total transactions: ${allTransactions.length}`);
      break;
    }
  }
  
  return allTransactions;
};

const fetchTransactionsBySlotRange = async () => {
  const walletAddress = "M2mx93ekt1fmXSVkTrUL9xVFHkmME8HTUi5Cyc5aF7K";
  const startSlot = 148000000;
  const endSlot = 148100000;
  
  const url = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY&gte-slot=${startSlot}&lte-slot=${endSlot}`;
  
  const response = await fetch(url);
  const transactions = await response.json();
  console.log(`Transactions between slots ${startSlot} and ${endSlot}:`, transactions);
};

const fetchOldestTransactions = async () => {
  const walletAddress = "M2mx93ekt1fmXSVkTrUL9xVFHkmME8HTUi5Cyc5aF7K";
  const url = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY&sort-order=asc&limit=10`;
  
  const response = await fetch(url);
  const transactions = await response.json();
  console.log("10 oldest transactions:", transactions);
};

const fetchFilteredTransactionsAdvanced = async () => {
  const walletAddress = "M2mx93ekt1fmXSVkTrUL9xVFHkmME8HTUi5Cyc5aF7K";
  
  // Get NFT sales from the last 7 days, oldest first
  const now = Math.floor(Date.now() / 1000);
  const sevenDaysAgo = now - (7 * 24 * 60 * 60);
  
  const url = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY&type=NFT_SALE&gte-time=${sevenDaysAgo}&sort-order=asc&limit=50`;
  
  const response = await fetch(url);
  const transactions = await response.json();
  console.log("NFT sales from last 7 days (oldest first):", transactions);
};

const fetchAllTransactionsInTimeRange = async () => {
  const walletAddress = "M2mx93ekt1fmXSVkTrUL9xVFHkmME8HTUi5Cyc5aF7K";
  const startTime = Math.floor(new Date('2024-01-01').getTime() / 1000);
  const endTime = Math.floor(new Date('2024-01-31').getTime() / 1000);
  
  let beforeSignature = null;
  let allTransactions = [];
  
  while (true) {
    let url = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY&gte-time=${startTime}&lte-time=${endTime}&limit=100`;
    
    if (beforeSignature) {
      url += `&before-signature=${beforeSignature}`;
    }
    
    const response = await fetch(url);
    const transactions = await response.json();
    
    if (!Array.isArray(transactions) || transactions.length === 0) {
      break;
    }
    
    allTransactions = [...allTransactions, ...transactions];
    beforeSignature = transactions[transactions.length - 1].signature;
    
    console.log(`Fetched ${transactions.length} transactions, total: ${allTransactions.length}`);
  }
  
  console.log(`Total transactions in time range: ${allTransactions.length}`);
  return allTransactions;
};

{
  "error": "Failed to find events within the search period. To continue search, query the API again with the `before-signature` parameter set to 2UKbsu95YzxGjUGYRg2znozmmVADVgmnhHqzDxq8Xfb3V5bf2NHUkaXGPrUpQnRFVHVKbawdQXtm4xJt9njMDHvg."
}

const fetchFilteredTransactions = async (sortOrder = 'desc') => {
  const walletAddress = "M2mx93ekt1fmXSVkTrUL9xVFHkmME8HTUi5Cyc5aF7K";
  const transactionType = "NFT_SALE";
  let continuationSignature = null;
  let allFilteredTransactions = [];
  let maxRetries = 10; // Prevent infinite loops
  let retryCount = 0;
  
  // Determine which parameter to use based on sort order
  const continuationParam = sortOrder === 'asc' ? 'after-signature' : 'before-signature';
  
  while (retryCount < maxRetries) {
    // Build URL with optional continuation parameter
    let url = `https://api-mainnet.helius-rpc.com/v0/addresses/${walletAddress}/transactions?api-key=YOUR_API_KEY&type=${transactionType}&sort-order=${sortOrder}`;
    
    if (continuationSignature) {
      url += `&${continuationParam}=${continuationSignature}`;
    }
    
    try {
      const response = await fetch(url);
      const data = await response.json();
      
      // Check if we received an error about search period
      if (data.error && data.error.includes("Failed to find events within the search period")) {
        // Extract the signature from the error message
        const signatureMatch = data.error.match(/parameter set to ([A-Za-z0-9]+)/);
        
        if (signatureMatch && signatureMatch[1]) {
          console.log(`No results in this period. Continuing search from: ${signatureMatch[1]}`);
          continuationSignature = signatureMatch[1];
          retryCount++;
          continue; // Continue searching with new signature
        } else {
          console.log("No more transactions to search");
          break;
        }
      }
      
      // Check if we received transactions
      if (Array.isArray(data) && data.length > 0) {
        console.log(`Found ${data.length} ${transactionType} transactions`);
        allFilteredTransactions = [...allFilteredTransactions, ...data];
        
        // Set continuation signature for next page
        continuationSignature = data[data.length - 1].signature;
        retryCount = 0; // Reset retry count since we found results
      } else {
        console.log("No more transactions found");
        break;
      }
      
    } catch (error) {
      console.error("Error fetching transactions:", error);
      break;
    }
  }
  
  console.log(`Total ${transactionType} transactions found: ${allFilteredTransactions.length}`);
  return allFilteredTransactions;
};

// Usage examples:
// Descending order (newest first) - uses 'before-signature' parameter
fetchFilteredTransactions('desc');

// Ascending order (oldest first) - uses 'after-signature' parameter
fetchFilteredTransactions('asc');