提取稳定币

{
  "message": "Withdrawal initiated successfully",
  "statusCode": 200,
  "data": {
    "id": "tx-uuid-123",
    "hash": "0xabc123...",
    "status": "PENDING",
    "amount": "100",
    "recipientAddress": "0xRecipientAddress...",
    "reference": "payout-12345",
    "note": "Monthly payout",
    "metadata": {
      "userId": "user_abc123",
      "payoutType": "salary"
    },
    "createdAt": "2024-01-15T10:30:00Z"
  }
}

{
  "assetId": "asset-uuid-here",
  "address": "GExchangeDepositAddress...",
  "amount": "100",
  "note": "Payout for user_abc123",
  "recipientRouting": {
    "type": "memo_id",
    "value": "10012345"
  }
}

{
  "message": "Memo must be at most 28 bytes for Stellar text memos",
  "statusCode": 400
}

{
  "message": "Batch withdrawal initiated successfully",
  "statusCode": 200,
  "data": {
    "success": [
      {
        "index": 0,
        "id": "tx-uuid-1",
        "hash": "0xabc...",
        "status": "PENDING",
        "amount": "100",
        "recipientAddress": "0xRecipient1...",
        "reference": "payout-001"
      },
      {
        "index": 1,
        "id": "tx-uuid-2",
        "hash": "0xdef...",
        "status": "PENDING",
        "amount": "150",
        "recipientAddress": "0xRecipient2...",
        "reference": "payout-002"
      },
      {
        "index": 2,
        "id": "tx-uuid-3",
        "hash": "0xghi...",
        "status": "PENDING",
        "amount": "200",
        "recipientAddress": "0xRecipient3...",
        "reference": "payout-003"
      }
    ],
    "errors": []
  }
}

const result = await batchWithdrawal.json();

// Process successful withdrawals
result.data.success.forEach(tx => {
  console.log(`✓ ${tx.reference}: ${tx.hash}`);
});

// Handle failed withdrawals
result.data.errors.forEach(error => {
  console.error(`✗ Index ${error.index}: ${error.error}`);
  // Retry logic or error reporting here
});

{
  "message": "Network fee fetched successfully",
  "statusCode": 200,
  "data": {
    "networkFee": "0.00001247904",
    "networkFeeInUSD": "0.01",
    "transactionFee": "0",
    "nativeBalance": "0.5",
    "nativeBalanceInUSD": "450.00",
    "estimatedArrivalTime": 30
  }
}

{
  "message": "Network fee fetched successfully",
  "statusCode": 200,
  "data": {
    "fees": [
      {
        "index": 0,
        "assetId": "asset-uuid-1",
        "address": "0xRecipient1...",
        "amount": "100",
        "networkFee": "0.00001247904",
        "transactionFee": "0",
        "estimatedArrivalTime": 30
      },
      {
        "index": 1,
        "assetId": "asset-uuid-2",
        "address": "0xRecipient2...",
        "amount": "50",
        "networkFee": "0.00000504",
        "transactionFee": "0",
        "estimatedArrivalTime": 30
      }
    ],
    "totalNetworkFee": "0.00001751904",
    "totalNetworkFeeInUSD": "0.02",
    "totalTransactionFee": "0",
    "nativeBalance": "0.073690520542044578",
    "nativeBalanceInUSD": "66.54",
    "estimatedArrivalTime": 60,
    "errors": []
  }
}

{
  "message": "Transaction signed successfully",
  "statusCode": 200,
  "data": {
    "id": "tx-uuid-123",
    "signedTransaction": "0xf86c...",
    "status": "SIGNED",
    "amount": "100",
    "recipientAddress": "0xRecipientAddress...",
    "createdAt": "2024-01-15T10:30:00Z"
  }
}

{
  "event": "withdraw.success",
  "data": {
    "id": "081d6315-159f-4c38-b02a-c4708836c5bd",
    "reference": "payout-12345",
    "senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
    "recipientAddress": "0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22",
    "amount": "100",
    "amountPaid": "100",
    "fee": null,
    "currency": "USD",
    "blockNumber": 6928833,
    "hash": "0x5fcb7dd11cbb5a6d64da08cf7e0d63c1a1e7b9d1b89e3e8d1c6a5f4b3a2c1d0e",
    "status": "SUCCESS",
    "type": "WITHDRAW",
    "note": "Monthly payout",
    "asset": {
      "id": "asset-uuid",
      "name": "USD Coin",
      "symbol": "USDC",
      "decimals": 6
    },
    "wallet": {
      "id": "wallet-uuid",
      "name": "Main Treasury"
    },
    "blockchain": {
      "id": "blockchain-uuid",
      "name": "ethereum",
      "network": "mainnet"
    },
    "metadata": {
      "userId": "user_abc123",
      "payoutType": "salary"
    },
    "networkFee": {
      "amount": "0.00027",
      "symbol": "ETH",
      "amountUsd": "0.702040"
    },
    "createdAt": "2024-01-15T10:30:00Z",
    "updatedAt": "2024-01-15T10:31:00Z"
  }
}

async function processWithdrawal(walletId, assetId, recipientAddress, amount) {
  const apiKey = process.env.BLOCKRADAR_API_KEY;
  const baseUrl = 'https://api.blockradar.co/v1';

  // Step 1: Estimate network fee
  const feeResponse = await fetch(
    `${baseUrl}/wallets/${walletId}/withdraw/network-fee`,
    {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'x-api-key': apiKey
      },
      body: JSON.stringify({
        assetId,
        address: recipientAddress,
        amount
      })
    }
  ).then(r => r.json());

  // Step 2: Check if we have enough native balance for gas
  const fee = feeResponse.data;
  if (parseFloat(fee.nativeBalance) < parseFloat(fee.networkFee)) {
    throw new Error(`Insufficient gas: need ${fee.networkFee}, have ${fee.nativeBalance}`);
  }

  // Step 3: Display fee to user (in your UI)
  console.log(`Network fee: ${fee.networkFee} (≈$${fee.networkFeeInUSD})`);
  console.log(`Estimated time: ${fee.estimatedArrivalTime}s`);

  // Step 4: Execute withdrawal (after user confirmation)
  const withdrawal = await fetch(
    `${baseUrl}/wallets/${walletId}/withdraw`,
    {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'x-api-key': apiKey
      },
      body: JSON.stringify({
        assetId,
        address: recipientAddress,
        amount,
        reference: `withdraw-${Date.now()}`
      })
    }
  ).then(r => r.json());

  console.log('Withdrawal initiated:', withdrawal.data.id);
  console.log('Transaction hash:', withdrawal.data.hash);

  // Step 5: Listen for webhook to confirm completion
  return withdrawal.data;
}

// Usage
processWithdrawal(
  'wallet-uuid',
  'asset-uuid-usdc',
  '0xRecipientAddress...',
  '100'
);