Parampos

parampos: {
  enabled: true,
  config: {
    clientCode: process.env.PARAMPOS_CLIENT_CODE!,
    clientUsername: process.env.PARAMPOS_CLIENT_USERNAME!,
    clientPassword: process.env.PARAMPOS_CLIENT_PASSWORD!,
    baseUrl: 'https://test-dmz.param.com.tr', // or production URL
  },
}

const result = await payment.parampos.createPayment({
  price: '100.00',
  paidPrice: '100.00',
  currency: Currency.TRY,
  installment: 1,
  paymentCard: { cardHolderName, cardNumber, expireMonth, expireYear, cvc },
  buyer: { /* ... */ },
  basketItems: [{ /* ... */ }],
});

// Initialize — returns HTML form to submit
const init = await payment.parampos.initThreeDSPayment({
  ...paymentRequest,
  callbackUrl: 'https://yoursite.com/callback',
});

// Complete (in callback)
const result = await payment.parampos.completeThreeDSPayment({
  paymentId: body.paymentId,
  md: body.MD,
});

await payment.parampos.refund({
  paymentTransactionId: 'transaction-id',
  price: '50.00',
  currency: Currency.TRY,
});

await payment.parampos.cancel({ paymentId: 'payment-id' });