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Bank virtual pos

İş Bankası EST / VPAY Virtual POS

Full 3D Secure 2.x and 3D_PAY integration for İş Bankası Maximum virtual POS systems.

Better Payment
EST / VPAY 3D Secure protocolMaximum installment program supportTiming-safe signature checking
Protocol

EST (Nestpay) XML

Auth

HASH ver3

3D Secure

Included

3d / 3d_pay / 3d_pay_hosting

Dependencies

0

Capabilities

Full İş Bankası support

  • EST / VPAY 3D Secure protocol
  • Maximum installment program support
  • Timing-safe signature checking
  • Refund and cancellation actions

How a request flows

  1. 1

    createPayment / initThreeDSPayment

    One typed request, translated into İş Bankası's format.

  2. 2

    EST (Nestpay) XML · HASH ver3 · SHA-512

    Signatures and field mappings are generated for you.

  3. 3

    Callback verification

    The signature is compared in constant time and the order match is checked.

  4. 4

    Normalized result

    Success, error code and transaction id come back in one shape.

Connect in one config.

Hand over your credentials; Better Payment handles the rest.

payment-isbank.tsTypeScript
import { createBetterPayment } from "better-payment";

const payment = createBetterPayment({
  defaultProvider: "isbank",
  providers: {
    isbank: {
      clientId: process.env.ISBANK_CLIENT_ID!,
      username: process.env.ISBANK_USERNAME!,
      password: process.env.ISBANK_PASSWORD!,
      storeKey: process.env.ISBANK_STORE_KEY!
    }
  }
});