Swap 与 Bridge

{
  "message": "Swap quote fetched successfully",
  "statusCode": 200,
  "data": {
    "amount": "99.45",
    "fromAmount": "100",
    "toAmount": "99.45",
    "requestedAmount": "100",
    "amountSide": "source",
    "minAmount": "98.95",
    "rate": "0.9945",
    "impact": "0.12",
    "slippage": "0.5",
    "networkFee": "0.002",
    "networkFeeInUSD": "0.15",
    "estimatedArrivalTime": 180,
    "recipientRouting": {
      "status": "none",
      "message": "No recipient routing value will be used. Confirm the destination accepts direct deposits without one."
    }
  }
}

{
  "recipientRouting": {
    "status": "embedded",
    "message": "The recipient routing ID is embedded in the normalized destination address."
  }
}

{
  "message": "Swap transaction created successfully",
  "statusCode": 200,
  "data": {
    "id": "swap-uuid-123",
    "type": "SWAP",
    "status": "PENDING",
    "fromAsset": {
      "symbol": "USDC",
      "amount": "100",
      "blockchain": "base"
    },
    "toAsset": {
      "symbol": "USDT",
      "amount": "99.45",
      "blockchain": "bsc"
    },
    "reference": "swap-order-12345",
    "metadata": {
      "userId": "user_abc123",
      "orderId": "order_xyz789"
    },
    "createdAt": "2024-01-15T10:30:00Z"
  }
}

{
  "event": "swap.success",
  "data": {
    "id": "swap-uuid-123",
    "type": "SWAP",
    "status": "SUCCESS",
    "fromAsset": {
      "symbol": "USDC",
      "amount": "100",
      "blockchain": "base",
      "hash": "0xabc..."
    },
    "toAsset": {
      "symbol": "USDT",
      "amount": "99.45",
      "blockchain": "bsc",
      "hash": "0xdef..."
    },
    "reference": "swap-order-12345",
    "metadata": {
      "userId": "user_abc123",
      "orderId": "order_xyz789"
    },
    "completedAt": "2024-01-15T10:33:00Z"
  }
}

async function executeSwap(walletId, fromAssetId, toAssetId, amount, amountSide = 'source') {
  const apiKey = process.env.BLOCKRADAR_API_KEY;
  const baseUrl = 'https://api.blockradar.co/v1';

  // Step 1: Get quote
  const quote = await fetch(
    `${baseUrl}/wallets/${walletId}/swaps/quote`,
    {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'x-api-key': apiKey
      },
      body: JSON.stringify({
        fromAssetId,
        toAssetId,
        amount,
        amountSide,
        order: 'RECOMMENDED'
      })
    }
  ).then(r => r.json());

  // Step 2: Display quote to user
  console.log(`You will receive: ${quote.data.toAmount}`);
  console.log(`Required source amount: ${quote.data.fromAmount}`);
  console.log(`Minimum amount: ${quote.data.minAmount}`);
  console.log(`Network fee: $${quote.data.networkFeeInUSD}`);
  console.log(`Estimated time: ${quote.data.estimatedArrivalTime}s`);

  // Step 3: Execute swap (after user confirmation)
  const swap = await fetch(
    `${baseUrl}/wallets/${walletId}/swaps/execute`,
    {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'x-api-key': apiKey
      },
      body: JSON.stringify({
        fromAssetId,
        toAssetId,
        amount,
        amountSide,
        order: 'RECOMMENDED',
        reference: `swap-${Date.now()}`
      })
    }
  ).then(r => r.json());

  console.log('Swap initiated:', swap.data.id);
  console.log('Status:', swap.data.status);

  // Step 4: Listen for webhook to confirm completion
  return swap.data;
}

// Usage
executeSwap(
  'wallet-uuid',
  'asset_usdc_base_mainnet',
  'asset_usdt_bsc_mainnet',
  '100'
);