IBAN Doğrulama

POST /api/v1/validation/iban

curl -X POST https://identity.payven.com.tr/api/v1/validation/iban \
  -H "Authorization: Bearer $PAYVEN_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "iban": "TR320010009999901234567890" }'

{
  "is_valid":       true,
  "checksum_valid": true,
  "format_valid":   true,
  "country_code":   "TR",
  "check_digits":   "32",
  "bank_code":      "00010",
  "formatted_iban": "TR32 0010 0099 9990 1234 5678 90",
  "masked_iban":    "TR32 **** **** **** **** **78 90",
  "bank": {
    "id":            "8e3f5c12-...",
    "code":          "ZIRAAT",
    "name":          "T.C. Ziraat Bankası",
    "bkm_member_id": "10"
  },
  "error_message": null
}

{
  "is_valid":       false,
  "checksum_valid": false,
  "format_valid":   true,
  "country_code":   "TR",
  "check_digits":   "33",
  "bank_code":      null,
  "formatted_iban": "TR33 0010 0099 9990 1234 5678 90",
  "masked_iban":    "TR33 **** **** **** **** **78 90",
  "bank":           null,
  "error_message":  "IBAN mod-97 checksum'ı geçmiyor."
}

async function onIbanBlur(iban) {
  const cleaned = iban.replace(/\s/g, "").toUpperCase();

  const res = await fetch("/api/validation/iban", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({ iban: cleaned }),
  });
  const result = await res.json();

  if (!result.is_valid) {
    showError(result.error_message);
    return;
  }

  setRecipientBank(result.bank?.name);
  setIbanFormatted(result.formatted_iban);
}