İyzico

iyzico: {
  enabled: true,
  config: {
    apiKey: process.env.IYZICO_API_KEY!,
    secretKey: process.env.IYZICO_SECRET_KEY!,
    locale: 'tr', // optional, default: 'tr'
  },
}

const result = await payment.iyzico.createPayment({
  price: '100.00',
  paidPrice: '100.00',
  currency: Currency.TRY,
  installment: 1,
  paymentCard: { cardHolderName, cardNumber, expireMonth, expireYear, cvc },
  buyer: { id, name, surname, email, identityNumber, ip, /* ... */ },
  shippingAddress: { contactName, city, country, address },
  billingAddress: { contactName, city, country, address },
  basketItems: [{ id, name, category1, itemType, price }],
});

const init = await payment.iyzico.initThreeDSPayment({
  ...paymentRequest,
  callbackUrl: 'https://yoursite.com/payment/callback',
});
// Redirect user to: init.htmlContent (rendered in iframe or redirect)

const result = await payment.iyzico.completeThreeDSPayment({
  paymentId: body.paymentId,
  conversationId: body.conversationId,
});

// Initialize
const form = await payment.iyzico.initCheckoutForm({
  ...paymentRequest,
  callbackUrl: 'https://yoursite.com/checkout/callback',
  enabledInstallments: [1, 2, 3, 6, 9],
});
// form.checkoutFormContent — embed as HTML
// form.token — save for retrieve step

// Retrieve result (in callback)
const result = await payment.iyzico.retrieveCheckoutForm({
  token: body.token,
});

const init = await payment.iyzico.initPWIPayment({ ...request });
const result = await payment.iyzico.retrievePWIPayment({ token: init.token });

const info = await payment.iyzico.installmentInfo({
  binNumber: '552879',
  price: '100.00',
  currency: 'TRY',
});
// info.installmentDetails[].installmentPrices[]

const bin = await payment.iyzico.binCheck('552879');
// bin.cardType, bin.cardAssociation, bin.cardFamily

// refund takes the payment id (sent to İyzico as paymentTransactionId) + ip.
await payment.iyzico.refund({
  paymentId: 'transaction-id',
  price: '50.00',
  currency: 'TRY',
  ip: '85.34.78.112',
});

await payment.iyzico.cancel({ paymentId: 'payment-id', ip: '85.34.78.112' });

// Initialize subscription
await payment.iyzico.initializeSubscription({ /* ... */ });

// Manage
await payment.iyzico.cancelSubscription({ subscriptionReferenceCode });
await payment.iyzico.upgradeSubscription({ /* ... */ });
await payment.iyzico.retrieveSubscription({ subscriptionReferenceCode });
await payment.iyzico.updateSubscriptionCard({ /* ... */ });

// Product & pricing plan management
await payment.iyzico.createSubscriptionProduct({ name, description });
await payment.iyzico.createPricingPlan({ productReferenceCode, /* ... */ });