QR API - Developer Suite

Request

Header Params

Content-Type

string

required

Example:

application/json

Body Params application/json

req_time

string

required

Request date and time in UTC format as YYYYMMDDHHmmss.

merchant_id

string

required

A unique merchant key which provided by ABA Bank.

<= 30 characters

tran_id

string

required

This is the unique transaction ID that identifies the transaction.

<= 20 characters

first_name

string

optional

Payer's first name.

<= 20 characters

last_name

string

optional

Payer's last name.

<= 20 characters

email

string

optional

Payer's email address.

<= 50 characters

phone

string

optional

Payer's phone number.

<= 20 characters

amount

number

required

The total transaction amount must be at least 100 KHR or 0.01 USD and cannot be null.

currency

string

required

Supported transaction currencies: KHR and USD. Not case-sensitive.

<= 3 characters

purchase_type

string

optional

Supported values: pre-auth and purchase. If the merchant does not provide a value, the default will be purchase.

Note: Alipay & WeChat do not support pre-auth.

<= 20 characters

payment_option

string

required

Possible payment options:

abapay : PayWay will respond with a proprietary ABA QR, which can only be scanned and paid via ABA Mobile.

abapay_khqr : Payway will response ABA KHQR.

wechat : PayWay will respond with a WeChat QR (only for USD transactions).

alipay : PayWay will respond with an Alipay QR (only for USD transactions).

<= 20 characters

items

string

optional

Item list description in Base64-encoded JSON format. Maximum of 10 items.
PHP Sample Code

<= 500 characters

callback_url

string

optional

URL to receive callbacks upon payment completion, encrypted with Base64.

PHP Sample Code

<= 255 characters

return_deeplink

string

optional

PHP Sample Code

<= 255 characters

custom_fields

string

optional

Additional custom fields to attach to the QR, encrypted with Base64.

PHP Sample Code

<= 255 characters

return_params

string

optional

Additional information to include in the pushback once the payment is completed.

PHP Sample Code

payout

string

optional

Payout instructions in a Base64-encoded JSON string.

PHP Sample Code

<= 255 characters

lifetime

integer

required

Transaction lifetime in minutes. Default: 30 days.

Minimum: 3 mins

Maximum: 30 days

qr_image_template

string

required

Refer to KHQR template here

<= 20 characters

hash

string

required

Base64 encode of hash hmac sha512 encryption of concatenated values req_time,merchant_id,tran_id,amount,items,first_name,last_name,email,phone,purchase_type,payment_option,callback_url,return_deeplink,currency,custom_fields,return_params,payout,lifetime, and qr_image_template

PHP Sample Code

Example

{
  "req_time": "20250312095439",
  "merchant_id": "oldme",
  "tran_id": "20250311033231",
  "first_name": "ABA",
  "last_name": "Bank",
  "email": "aba.bank@gmail.com",
  "phone": "012345678",
  "amount": 0.01,
  "purchase_type": "purchase",
  "payment_option": "abapay_khqr",
  "items": null,
  "currency": "USD",
  "callback_url": "aHR0cHM6Ly9hcGkuY2FsbGJhY2suY29tL25vdGlmeQ==",
  "return_deeplink": null,
  "custom_fields": null,
  "return_params": null,
  "payout": null,
  "lifetime": 6,
  "qr_image_template": "template1",
  "hash": "ZyDmMe/kznbY2e...ZB6tMnqv57V06T13du8807dcbPTg=="
}

Request samples

Shell

JavaScript

Java

Swift

Go

PHP

Python

HTTP

C

C#

Objective-C

Ruby

OCaml

Dart

R

curl --location --request POST '/api/payment-gateway/v1/payments/generate-qr' \
--header 'Content-Type: application/json' \
--data-raw '{
    "req_time": "20250312095439",
    "merchant_id": "oldme",
    "tran_id": "20250311033231",
    "first_name": "ABA",
    "last_name": "Bank",
    "email": "aba.bank@gmail.com",
    "phone": "012345678",
    "amount": 0.01,
    "purchase_type": "purchase",
    "payment_option": "abapay_khqr",
    "items": null,
    "currency": "USD",
    "callback_url": "aHR0cHM6Ly9hcGkuY2FsbGJhY2suY29tL25vdGlmeQ==",
    "return_deeplink": null,
    "custom_fields": null,
    "return_params": null,
    "payout": null,
    "lifetime": 6,
    "qr_image_template": "template1",
    "hash": "ZyDmMe/kznbY2e...ZB6tMnqv57V06T13du8807dcbPTg=="
}'

Responses

🟢200Success

application/json

Body

qr_string

string

required

QR conent as string

qr_image

string

required

QR as base64 image.

abapay_deeplink

string

required

ABA Mobile Deeplink. You can use this deeplink to automatically open ABA Mobile so that customer can confim payment.

app_store

string

required

If you try to open abapay_deeplink and the payer does not have ABA Mobile installed, you can redirect the user to the app store to download ABA Mobile.

play_store

string

required

If you try to open abapay_deeplink and the payer does not have ABA Mobile installed, you can redirect the user to the play store to download ABA Mobile.

amount

number

required

Transaction amount.

currency

string

required

Transaction currency.

status

object

required

code

string

required

Possible response codes:

0 : Success.

1 : Wrong Hash.

6 : Requested Domain is not in whitelist.

8 : Something went wrong. Please reach out to our digital support team for assistance

12 : Payment currency is not allowed.

16 : Invalid First Name. It must not contain numbers or special characters or not more than 100 characters.

17 : Invalid Last Name. It must not contain numbers or special characters or not more than 100 characters.

18 : Invalid Phone Number.

19 : Invalid Email.

21 : End of API lifetime.

23 : Selected Payment Option is not enabled for this Merchant Profile.

32 : Service is not enable.

35 : Payout Info is invalid.

44 : Purchase amount has reached transaction limit.

47 : KHR Amount must be greater than 100 KHR.

48 : Something went wrong with requested parameters. Please try again or contact the merchant for help.

96 : Invalid merchant data

102 : The URL is not in the whitelist.

403 : Duplicated Transaction ID

429 : You've reached the maximum attempt limit. Please try again in (min)

message

string

required

Please see the property reponse code for the details.

tran_id

string

required

Your unique transaction id

trace_id

string

required

A unique identifier assigned to a request to help track its journey through a system

Example

{
  "qrString": "00020101021230510016abaakhppxxx@abaa01151250212145328460208ABA Bank52048249530384054040.015802KH5925OLD ME 25 CHAR WINNER IP",
  "qrImage": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAACgCAYAAACLz2ctAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAOC0lEQVR4nO2deahV1RfHl6ZlaaZ",
  "abapay_deeplink": "abamobilebank://ababank.com?type=payway&qrcode=00020101021230510016abaakhppxxx%40abaa01151250212145328460208ABA+Bank5",
  "app_store": "https://itunes.apple.com/al/app/aba-mobile-bank/id968860649?mt=8",
  "play_store": "https://play.google.com/store/apps/details?id=com.paygo24.ibank",
  "amount": 0.01,
  "currency": "USD",
  "status": {
    "code": "0",
    "message": "Success.",
    "tran_id": "20250311033231",
    "trace_id": "b9f93f45b49f08e26dfcfb8c2da396c6"
  }
}