Top-Up eSIM

POST /api/esim/buy

async function completeTopUpFlow(esimId, regionCode, originalPackageCode) {
  const headers = {
    'X-API-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json'
  };

  // Step 1: Get available top-up packages
  const topupParams = new URLSearchParams({
    type: 'TOPUP',
    regionCode,
    packageCode: originalPackageCode
  });

  const topupsRes = await fetch(
    `https://api.vellosim.com/api/esim/packages?${topupParams}`,
    { headers }
  );
  const topups = await topupsRes.json();

  if (topups.length === 0) {
    console.log('No top-up options available for this eSIM');
    return null;
  }

  console.log(`${topups.length} top-up options available:`);
  topups.forEach((pkg, i) => {
    const gb = (pkg.volume / 1073741824).toFixed(1);
    console.log(`  ${i + 1}. ${pkg.name}: ${gb}GB — $${pkg.price}`);
  });

  // Step 2: Get exchange rate for NGN display
  const rateRes = await fetch(
    'https://api.vellosim.com/api/settings/exchange-rate',
    { headers }
  );
  const { data: rateData } = await rateRes.json();

  // Step 3: Select a top-up and show price
  const selected = topups[0]; // Pick first option
  const ngnPrice = Math.round(selected.price * rateData.rate * 100) / 100;
  console.log(`\nSelected: ${selected.name} — $${selected.price} (≈ ₦${ngnPrice.toLocaleString()})`);

  // Step 4: Purchase the top-up
  const purchaseRes = await fetch('https://api.vellosim.com/api/esim/buy', {
    method: 'POST',
    headers,
    body: JSON.stringify({
      packageCode: selected.packageCode,
      paymentMethod: 'WALLET',
      packageType: 'TOPUP',
      esimId
    })
  });

  const result = await purchaseRes.json();

  if (result.status === 'SUCCESS') {
    console.log(`✅ Top-up applied! Transaction: ${result.transactionId}`);
  } else {
    console.log(`❌ Top-up failed: ${result.message}`);
  }

  return result;
}

// Usage
await completeTopUpFlow(
  '69125f9f56d7f09edabbaf23',  // esimId
  'US',                          // regionCode
  'CKH384'                       // original packageCode
);