Cambodia QR Banking

Interaction diagram

Payment processing by using the Cambodia QR Banking payment method requires merchant's web service, one of Monetix interfaces, and the Monetix payment platform, as well as one of the bank services which supports this payment method.

Operations support

	Interfaces			Amounts		Times
	Payment Page	Gate	Dashboard	minimum	maximum	basic	threshold
Purchases				41,000.00 KHR or 10.00 USD	60,000,000.00 KHR or 15,000.00 USD	*	*

* Refer to your Monetix key account manager for more information.

You can check the payment amount limits in your project by using Dashboard. To check your payment amount limits, go to Dashboard, select the Projects section and click the Payment methods tab.

Processing scenarios

In the Cambodia QR Banking method, the customer is required to scan QR code by using bank mobile application. Refer to your key account manager at Monetix to find out the details of the payment scenario.

The sections that follow provide detailed information about what you need to perform payments and how you can analyze the information on payments and operations.

Supported banks

Payments through the Cambodia QR Banking method are carried out through the banks that support the method. To initiate purchase by using Gate, you use bank identifiers, which are also used to display banks on Payment Page where your customer can choose payment method.

The tables below provide information about supported banks.

General information

In the Cambodia QR Banking method, to perform a purchase by using Payment Page, the merchant web service is required to send a request with all the required parameters and signature to the Monetix URL and accept the callback with the payment result from the payment platform. When opening Payment Page, you can have Payment Page opened with the Cambodia QR Banking method preselected. For more information about preselecting payment methods, see Preselecting payment methods.

The full sequence and particularities of the purchase process are provided below.

The sections that follow discuss in more details the request format and the Payment Page parameters to use in the Cambodia QR Banking payment method and provide the information about the format of callbacks with payment results. For the general information on how to use the Payment Page API, see Payment Page API Description.

Request format

There are several things you need to consider when using the Cambodia QR Banking method:

1. You must provide values for the basic minimum of parameters. Listed below are the parameters that are required for any payment method:
   • project_id—the project ID obtained from Monetix
   • payment_id—payment ID unique within the project
   • customer_id—unique ID of the customer within your project
   • customer_email—customer email address
   • payment_currency—code of payment currency in ISO-4217 alpha-3 format
   • payment_amount—payment amount in minor currency units without any decimal point or comma except for cases where the currency does not have any minor currency units. If the currency has no minor units (that is, the number of digits for minor currency units is zero), then you must set this parameter to the amount in the major currency units. For the information on whether the currency has any minor units, see Currency codes.
   • account_customer_name—customer full name
2. If you need to have payment form displayed with the Cambodia QR Banking method preselected, set the force_payment_method parameter to banks-cambodia-qr.
3. By default, the messages with information about payment result are displayed in Khmer language. To change the language of the messages to English, add to your request the language_code parameter set to en.
4. If required, you can also add any other additional parameters Payment Page supports. For information about all parameters available in the Cambodia QR Banking method, see Payment Page invocation parameters.
5. After you specify all the parameters you need, you are required to create the signature for the request. For instructions on how to sign a payment request, see Signature generation and verification.

Here is an example of data from a request for Payment Page opening:

EPayWidget.run(
    { 
      project_id: 1234,
      payment_id: 'payment_123',
      customer_id: 'customer_123',
      customer_email: 'johndoe@example.com',
      account_customer_name: 'John Doe',
      payment_amount: 5000000,
      payment_currency: 'KHR',
      signature: "kUi2x9dKHAVNU0FYldJrxhRLCvhtT4DqtVUkDJrOcZzUCwX6R\/ekpZhkIQg=="
    }
)

Callback format

The Cambodia QR Banking method uses the standard format for callbacks to deliver purchase results. For more information, see Callbacks in Payment Page.

The following is the example of a callback with an information about successful 50,000.00 KHR purchase made in the 1234 project.

{
        "project_id": 1234,
        "payment": {
            "id": "1561223423",
            "type": "purchase",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "method": "Cambodia qr",
            "sum": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "description": "1561714332889"
        },
        "customer": {
            "id": "customer_123"
        },
        "operation": {
            "id": 39811000003358,
            "type": "sale",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "created_date": "2019-07-01T07:53:19+0000",
            "request_id": "1fb651fe71b5db9db3d6382c995c8f51b08785ff",
            "sum_initial": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "sum_converted": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "code": "0",
            "message": "Success"
        },
        "signature": "YreiJ0aXQgDVuo74tsBXVRcd/0M9twm5IDxiZ8C2sqcuuncjkbazWKg=="
    }
}

The following is the example of a callback for a declined purchase.

{
        "project_id": 200,
        "payment": {
            "id": "1561223423",
            "type": "purchase",
            "status": "decline",
            "date": "2019-07-01T07:54:16+0000",
            "method": "Cambodia qr",
            "sum": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "description": "1561714332889"
        },
        "customer": {
            "id": "customer_123"
        },
        "operation": {
            "id": 39811000003358,
            "type": "sale",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "created_date": "2019-07-01T07:53:19+0000",
            "request_id": "1fb651fe71b5db9db3d6382c995c8f51b08785ff",
            "sum_initial": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "sum_converted": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "code": "20000",
            "message": "General decline"
        },
        "signature": "YreiJ0aXQgDVuo74tsBXpZ8tmJi0IRVCy9twm5IDxiZ8C2sqcuuncjkbazWKg=="
    }
}

Related topics

The following topics might be useful when implementing payments by using Payment Page:

• Integration procedure
• Payment types, operations and payments
• Signature generation and verification
• Operation statuses and response codes

General information

In the Cambodia QR Banking method, to perform a purchase by using Gate, the merchant web service is required to do the following:

1. Send a request with all the required parameters and signature to the Monetix URL.
2. Display the QR code to the customer.
3. Accept the callback with the payment result from the payment platform.

The following diagram provides the detailed picture of the payment processing procedure.

The sections that follow discuss in more details the request format and the Gate parameters to use in the Cambodia QR Banking payment method and provide the information on the format of callbacks with purchase results.

Request format

There are several things you must consider when using purchase requests in the Cambodia QR Banking method:

1. You initiate a purchase by submitting a purchase request to the /v2/payment/banks/cambodia-qr/sale endpoint by using the HTTP method POST. This endpoint belongs to the following group of endpoints for the online banking payments: /v2/payment/banks/{payment_method}/sale.
2. The following objects and parameters must be specified in any request:
   • general—object with general request identification information:
     • project_id—the project ID obtained from Monetix
     • payment_id—payment ID unique within the project
     • signature—signature created after you specify all the required parameters. For more information about signature generation, see Signature generation and verification.
   • customer—object with customer information:
     • id—the unique ID of the customer within your project
     • ip_address—customer device IP
     • email—customer email address
   • payment—object with purchase information:
     • amount—purchase amount in minor currency units without any decimal point or comma except for cases where the currency does not have any minor currency units. If the currency has no minor units (that is, the number of digits for minor currency units is zero), then you must set this parameter to the amount in the major currency units. For the information on whether the currency has any minor units, see Currency codes.
     • currency—code of purchase currency in ISO-4217 alpha-3 format
   • account—object with customer account information:
     • customer_name—customer's full name
     • bank_id—ID of the bank
3. If required, you can also add any optional parameters Gate supports.

Here is an example of data from a purchase request in the Cambodia QR Banking method.

{
    "general": {
        "project_id": 1234,
        "payment_id": "payment_123",
        "signature": "U5LCm6489ly9cXCKIVBNV0mFr4XiCruECSyQEbT1hSXJ70zuH4...=="
    },
    "customer": {
        "ip_address": "198.51.100.47",
        "id": "customer_123",
        "email": "johndoe@example.com"
    },
    "account": {
        "customer_name": "John Doe",
        "bank_id": 12345
    },
    "payment": {
        "amount": 5000000,
        "currency": "KHR"
    }
}

Format of the data for displaying QR code to customers

In order to customer is able to complete the payment, you are required to display the QR code in your web service. The QR code data is sent in the callback from the payment platform in the data parameter of display_data array. The data should be displayed to the customer in the QR code. Therefore, before displaying the QR code, you need to accept and process such callback.

There is only one element in the display_data array and it contains the following parameters:

• type—element type (always qr_url)
• title—the name of the data, the value is always qr_url
• data—the data that should be encoded in the QR code

The following is the callback fragment containing display_data array.

"display_data": [
    {
        "type": "qr_url",
        "title": "qr_url",
        "data": "https://crm.sample.com/file/bank/qr/KHR_QR_RIEL_WITHOUTLOGO.jpg?v=1"
    }
]

Callback format

The Cambodia QR Banking method uses the standard format for callbacks to deliver purchase results. For more information, see Callbacks in Gate.

The following is the example of a callback with an information about successful 50,000.00 KHR purchase made in the 1234 project.

{
        "project_id": 1234,
        "payment": {
            "id": "1561223423",
            "type": "purchase",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "method": "Cambodia qr",
            "sum": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "description": "1561714332889"
        },
        "customer": {
            "id": "customer_123"
        },
        "operation": {
            "id": 39811000003358,
            "type": "sale",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "created_date": "2019-07-01T07:53:19+0000",
            "request_id": "1fb651fe71b5db9db3d6382c995c8f51b08785ff",
            "sum_initial": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "sum_converted": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "code": "0",
            "message": "Success"
        },
        "signature": "YreiJ0aXQgDVuo74tsBXpZ8tmJi0IRVCyFucJ1a8E9twm5IDxiZ8C2sqcuuncjkbazWKg=="
    }
}

The following is the example of a callback for a declined purchase.

{
        "project_id": 1234,
        "payment": {
            "id": "1561223423",
            "type": "purchase",
            "status": "decline",
            "date": "2019-07-01T07:54:16+0000",
            "method": "Cambodia qr",
            "sum": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "description": "1561714332889"
        },
        "customer": {
            "id": "customer_123"
        },
        "operation": {
            "id": 39811000003358,
            "type": "sale",
            "status": "success",
            "date": "2019-07-01T07:54:16+0000",
            "created_date": "2019-07-01T07:53:19+0000",
            "request_id": "1fb651fe71b5db9db3d6382c995c8f51b08785ff",
            "sum_initial": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "sum_converted": {
                "amount": 5000000,
                "currency": "KHR"
            },
            "code": "20000",
            "message": "General decline"
        },
        "signature": "YreiJ0aXQgDVuo74tsBXpZ8tmJi0IRVb8E9twm5IDxiZ8C2sqcuuncjkbazWKg=="
    }
}

Related topics

The following topics might be useful when implementing payments through Gate:

• Integration procedure
• Payment types, operations and payments
• Signature generation and verification
• Operation statuses and response codes

As with other payment methods Monetix offers, when using this method, you have several options to analyze the information about payments and operations.

You can load and analyze all the necessary information in Dashboard (dash-light.trxhost.com), for instance you can use the analytic panels in the Analytics section for this purpose.

Also, you can export the information for further analysis by using third party analytical tools. The following options are available:

• Dashboard allows you to download reports in CSV format by using the tools in the Reports section. You can perform export as a one-time or regular download of data to your local computer.
• Data API allows you to have payment information exported in JSON format and delivered to a URL you specify. The payment information is exported by means of sending requests to the /operations/get endpoint.

If you have any further questions regarding payment data analysis, contact Monetix technical support.