Government Savings Bank

The Government Savings Bank (GSB) is a legal person and a state-owned enterprise. It is a government-guaranteed financial institution under the supervision of the Ministry of Finance of Thailand.

GSB has more than 5 million Thai users. Currently, the bank supports users to pay via online banking.

Properties

The properties of the GSB payment method are shown in the following table:

User experience

Note: The following payment flows on different terminals are reference only, and represent this payment method's flow on different terminal types. For supported merchants' terminal types, consult Antom Technical Support.

The following graphic shows the user experience for the App terminal.

1. The buyer selects GSB to pay.
2. The buyer obtains the payment code.
3. The buyer manually opens a bank app and completes the payment.
4. The buyer is redirected to the merchant result page.

Integration considerations

The following section outlines integration considerations for various payment types, detailing customized integration solutions and payment method features.

About normalUrl

• When accepting payments from GSB, you can choose whether to use normalUrl:

• If choosing not to use normalUrl, you can directly render the codeValue in the API response on the merchant page to display the QR code or payment code, reducing page redirections and improving the payment experience.
• If choosing to use normalUrl, redirect your buyer to the address specified by normalUrl and proceed the payment process as indicated in User experience.

• For Web, WAP, and App terminals, normalUrl is returned in the response of the pay API. The buyer is redirected to the address specified by normalUrl and uses the payment code displayed on the page to proceed with the payment within the mobile banking app or on the offline ATM device. After the payment is completed, the middle page automatically redirects to the merchant result page.
• Different terminal types have specific integration features when returning normalUrl:

• WAP: The returned normalUrl is the payment code and payment operation display page. The buyer copies the payment code and proceeds to the bank app or the ATM based on the payment operation or the screenshot to complete the payment.
• App: The returned normalUrl does not trigger the payment method app. It is recommended to render the URL page directly within the merchant app and provide payment operation steps to guide the buyer to complete the payment.

After payments

• After the buyer completes the payment in the bank app, the banking app will not automatically redirect to the merchant's results page. The buyer needs to manually navigate to the transaction initiation app (the merchant app or browser).
• This payment method does not support refunds. It is recommended to communicate directly with the buyer offline.
• Obtain the payment result from the payment result notification (notifyPayment) or by making inquiries (inquiryPayment). Handle the redirection and display of the payment result page to avoid duplicate payments.

Default timeout

The QR code returned by Antom will not be refreshed automatically. When displaying the QR code, add the expireTime parameter in the API response to display the timeout time. Enable the copy function for the payment code when displaying the payment code, and allow the buyer to conveniently paste the payment code into the payment method app.

Response sample

The following is a code example in the payment response:

{
    "normalUrl": "https://iexpfront-sea-global.alipay.com/payments/method/checkout/code.html?merchantId=188iwOYLsWM%2B3OM5i43oAN6sL7yTti1YlTOEpSbxNsmiew%3D&paymentRequestId=CXAYOydvzFe7eL4AQN2FPFl4b1fasGA7UFbW9%2Boganw%3D&clientId=5Y607N2YJU8006726",
    "orderCodeForm": {
        "codeDetails": [
            {
                "codeValue": "0887405595",
                "displayType": "TEXT"
            },
            {
                "codeValue": "https://iexpfront-sea.alipay.com/showQrImage.htm?code=3%252Fk97oupdVD%252ByBP1ou%252BptqjVaG8Ixnok9U7nnDE2WPVTDPpBzDn8dkIsmtHcKjKN8whponnj8Sni940IWpkvIw%253D%253D&size=M&sid=188",
                "displayType": "MIDDLEIMAGE"
            },
            {
                "codeValue": "|010555303610000 0000000887405595 0000000887405595 120",
                "displayType": "TEXT"
            }
        ],
        "expireTime": "2024-03-05T18:59:42-08:00"
    },
    "paymentActionForm": "{\"paymentActionFormType\":\"PaymentCodeForm\",\"paymentCodeExpireTime\":1709693982000,\"paymentCodeInfos\":[{\"paymentCodeDetails\":[{\"codeValue\":\"0887405595\",\"codeValueType\":\"DIGICODE\",\"displayType\":\"TEXT\"},{\"codeValue\":\"|010555303610000 0000000887405595 0000000887405595 120\",\"codeValueType\":\"QRCODE\",\"displayType\":\"IMAGE\"},{\"codeValue\":\"|010555303610000 0000000887405595 0000000887405595 120\",\"codeValueType\":\"BARCODE\",\"displayType\":\"IMAGE_CONVERT\"}],\"paymentCodeInfoType\":\"PAYMENT_CODE\"}]}",
    "paymentAmount": {
        "currency": "THB",
        "value": "120"
    },
    "paymentCreateTime": "2024-03-03T18:59:42-08:00",
    "paymentId": "20240304194010800100188910209087631",
    "paymentRequestId": "PAY_202403041405940069",
    "redirectActionForm": {
        "method": "GET",
        "redirectUrl": "https://iexpfront-sea-global.alipay.com/payments/method/checkout/code.html?merchantId=188iwOYLsWM%2B3OM5i43oAN6sL7yTti1YlTOEpSbxNsmiew%3D&paymentRequestId=CXAYOydvzFe7eL4AQN2FPFl4b1fasGA7UFbW9%2Boganw%3D&clientId=5Y607N2YJU8006726"
    },
    "result": {
        "resultCode": "PAYMENT_IN_PROCESS",
        "resultMessage": "payment in process",
        "resultStatus": "U"
    }
}