Mobile Banking (Mobile Only)

Topics covered on this page

• Available Bank
• Payment Flow
• Implementation
  • Create charges
• Limits

Available Bank

Bank Name	Type
Siam Commercial Bank	scb
Krungthai Bank	ktb
Kasikornbank	kbank
Bangkok Bank	bbl
Bank of Ayudhya	bay

Payment Flow

1. Redirect User to internet banking payment page or application.
2. Confirm payment via internet banking payment page or application.
3. Fill OTP to complete payment.
4. Customer is redirect back to your website via return_url

Implementation

1. Create a new Charges using the service_id and api key provide by GUPAY
2. Use redirect_url from Charges for send customer to payment page
3. Charing result will send to Webhook and redirect user to return_url
4. Afer receiving the charge completion webhook event. retrieve the charge to verify its status(optional)

Create charges

When the customer confirms to use this payment method, create a new Charges specifying the amount, currency, type

POST

https://api.gupay.co/v1/charges

Name	Data Type	Description	Example	Mandatory
Header parameter
Authorization	string	HTTP Basic Auth. Provide your secret key as the basic auth username value. You do not need to provide a password.	Basic {SECRET KEY}	Y
content-type	string	Type of content as application/json	application/json	Y
Body parameter
type	string	Type of payment scb, ktb, kbank, bbl	scb	Y
service_id	string	service identifier. This ID will be provided by GUPay	1234	Y
amount	integer	Amount of transaction. Must be positive number	100	Y
currency	currency	Currency for charge. use 3 letter follow ISO 4217 code.	thb	Y
description	string	item/credit detail provided by merchant	Purchase 1000 Gold	Y
reference_id	string	ID to uniquely define each reqeust from partner	ref_3Qc23iFf8UCGhKaKjgja6ynCvAVA6	Y
customer_id	string	ID of your customer or user ID. It can be text, number or email	Bud81@gmail.com	Y
flow	string	Type of payment flow	redirect	Y
return_url	string	Redirect url for after user complete payment	https://merchant.redirect.com/result	N

Example

Details

curl -X POST https://api.gupay.co/v1/charges
-H 'Authorization: Basic {{SECRET KEY}}'
-H 'cache-control: no-cache'
-H 'Content-Type: application/json'
-d '{
"type": "scb",
"service_id": "1234",
"amount": "100",
"currency": "thb",
"description": "Purchase 1000 Gold",
"reference_id": "ref_3423m9ZrFf4bfJcidKJFbEoxrdx",
"customer_id": "Gonzalo80",
"flow": "redirect",
"return_url": "https://merchant.redirect.com/result"
}'

Create Charge response and Webhook

Name	Data Type	Description	Example	Mandatory
Header parameter
content-type	string	type of content as application/json	application/json	Y
Body parameter
id	string	Charge unique identifier define each reqeust from GUPAY	chg_klpr1MySQ0Jxxxxxx	Y
object	string	The String charge	charge	Y
merchant_id	string	Merchant identifier. This ID will be provided by GUPay	er_OkFBdWxxxxxxxx	Y
service_id	string	service identifier. This ID will be provided by GUPay	1234	Y
status	string	status of payment. one of successful , pending, failed	pending	Y
created_at	datetime	UTC datetime of create charge payment in format ISO 8601 (YYYY-MM-DDThh:mm:ssZ)	2022-01-25T06:11:40Z	Y
updated_at	datetime	UTC datetime of update charge payment status in format ISO 8601 (YYYY-MM-DDThh:mm:ssZ)	2022-01-25T06:11:40Z	Y
paid	boolean	status charge has been captured	false	Y
amount	integer	Amount of transaction. Must be positive number	100	Y
currency	currency	Currency for charge. use 3 letter follow ISO 4217 code.	thb	Y
description	string	item/credit detail provided by merchant	Purchase 1000 Gold	Y
failure_code	string	code of failure status. please see more detail in Status Code	insufficient_balance	Y
failure_message	string	detail of failure status. please see more detail in Status Code	User's balance is not enough.	Y
livemode	boolean	status of live service	true	Y
merchant_reference_id	string	ID to uniquely define each reqeust from partner	ref_3Qc23iFf8UCGhKaKjgja6ynCvAVA6	Y
merchant_customer_id	string	ID of your customer or user ID. It can be text, number or email	Bud81@gmail.com	Y
redirect_url	string	Redirect URL to payment page	https://gateway.gupay.co/scb/form/60c5c82a-e24d-4xxxxxxxxxxxxxxx	Y
return_url	string	Redirect URL after user payment provided by merchant	https://merchant.redirect.com/result	N
paid_at	datetime	UTC datetime of charge payment in format ISO 8601 (YYYY-MM-DDThh:mm:ssZ)	2022-01-25T06:11:40Z	Y
flow	string	type of payment flow	redirect	N
type	string	type of payment	scb	Y
payment_transaction_id	string	payment referent id provided by GUPay	0bc28cbb-c3c1-429d-88b1-e997709435bc	N
payment_reference_id	string	payment reference id from Payment Onwer	10302358	Y
mobile_number	string	mobile number of user	0871492xxxx	Y
serial_no	string	serial number of cashcard payment		N
pin_no	string	pin number of cashcard payment		N

Example

Details

{
    "id": "chg_klpr1MySQxxxxx",
    "object": "charge",
    "merchant_id": "mer_OkFBdWwwsZYxxxxx",
    "service_id": 1234,
    "status": "pending",
    "created_at": "2022-01-25T06:11:40Z",
    "updated_at": "2022-01-25T06:11:40Z",
    "paid": false,
    "amount": 5,
    "currency": "thb",
    "description": "Purchase 1000 Gold",
    "failure_code": null,
    "failure_message": null,
    "livemode": true,
    "merchant_reference_id": "ref_1K4Tpk1YdWMYMHrmyyYci5Yjxxxxx",
    "merchant_customer_id": "Stewart45@gmail.com",
    "redirect_url": "https://gateway.gupay.co/scb/form/60c5c82a-e24d-40cc-a2c0-dd7f312xxxxx",
    "return_url": "",
    "paid_at": null,
    "flow": "redirect",
    "type": "scb",
    "payment_transaction_id": null,
    "payment_reference_id": null,
    "mobile_number": "",
    "serial_no": null,
    "pin_no": null
}

Limits

Minimum: 10 (10 THB)