以本地货币收款和付款

{
  "event": "onramp.success",
  "data": {
    "id": "0198f02a-9201-7000-8000-000000000002",
    "reference": "provider-payment-001",
    "type": "ONRAMP",
    "status": "SUCCESS",
    "currency": "NGN",
    "amount": "150000",
    "toCurrency": "USDC",
    "toAmount": "100",
    "virtualAccount": {
      "id": "0198f020-0000-7000-8000-000000000004",
      "accountNumber": "1234567890",
      "bankName": "Example Bank"
    },
    "paymentOrder": null,
    "wallet": {
      "id": "0198f020-0000-7000-8000-000000000005",
      "name": "Base Wallet"
    }
  }
}

// Call this from your webhook endpoint after verifying the signature
async function onOnrampSuccess(event) {
  if (event.event !== "onramp.success") return;

  const { wallet, toCurrency, toAmount } = event.data;
  const assets = await fetch(
    `https://api.blockradar.co/v2/wallets/${wallet.id}/withdraw/fiat/assets`,
    { headers: { "x-api-key": process.env.BLOCKRADAR_API_KEY } },
  ).then((r) => r.json());
  const assetId = assets.data?.find((a) => a.asset?.symbol === toCurrency)?.id;

  // Continue with Steps 2 to 7 of Withdraw Fiat, using wallet.id, assetId,
  // currency NGN and an amount no larger than toAmount
}