Get a transfer by ID

curl --request GET \
  --url https://api.cdp.coinbase.com/platform/v2/payments/transfers/{transferId}

{
  "id": "8e03978e-40d5-43e8-bc93-6894a57f9324",
  "sourceType": "payment_method",
  "source": {
    "id": "8e03978e-40d5-43e8-bc93-6894a57f9324"
  },
  "targetType": "crypto_rail",
  "target": {
    "currency": "USDC",
    "network": "base",
    "address": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
  },
  "sourceAmount": "110.50",
  "sourceCurrency": "USD",
  "targetAmount": "100",
  "targetCurrency": "USD",
  "userAmount": "100",
  "userCurrency": "USD",
  "fees": [
    {
      "type": "exchange_fee",
      "amount": "10.25",
      "currency": "USD"
    },
    {
      "type": "network_fee",
      "amount": "0.25",
      "currency": "USD"
    }
  ],
  "status": "completed",
  "createdAt": "2021-01-01T00:00:00Z",
  "updatedAt": "2021-01-01T00:00:00Z",
  "transactionHash": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
}