LinkAja QRIS Integration Guide

The basic integration process of the LinkAja channel will be explained below

Integration Step

  1. Post Data Transaction to Faspay

  2. Display QR Code

  3. Callback/Return URL

  4. Payment Notification

1. Post Data Transaction

Post-data transactions should be done from the merchant backend, the detailed API reference can be found Here

This is an example of a post-data transaction sample code for the LinkAja QRIS channel:

A. Post Data Transaction Request

<faspay>
	<request>Purchased Details Transmission</request>
	<merchant_id>99999</merchant_id>
	<merchant>FASPAY STORE</merchant>
	<bill_no>849389422312</bill_no>
	<bill_reff>Payment</bill_reff>
	<bill_date>2023-10-10 09:19:00</bill_date>
	<bill_expired>2023-10-11 12:10:10</bill_expired>
	<bill_desc>Payment #12345678</bill_desc>
	<bill_currency>IDR</bill_currency>
	<bill_gross>0</bill_gross>
	<bill_tax>0</bill_tax>
	<bill_miscfee>0</bill_miscfee>
	<bill_total>10000</bill_total>
	<cust_no>1</cust_no>
	<cust_name>Faspay Agus Priyono</cust_name>
	<cust_lastname></cust_lastname>
	<payment_channel>715</payment_channel>
	<pay_type>1</pay_type>
	<bank_userid></bank_userid>
	<msisdn>081234567891</msisdn>
	<email>sanjayaegasanto@gmail.com</email>
	<terminal>10</terminal>
	<billing_name>payment item faspay</billing_name>
	<billing_lastname>0</billing_lastname>
	<billing_address>jalan pintu air raya</billing_address>
	<billing_address_city>Jakarta Pusat</billing_address_city>
	<billing_address_region>DKI Jakarta</billing_address_region>
	<billing_address_state>Indonesia</billing_address_state>
	<billing_address_poscode>10710</billing_address_poscode>
	<billing_msisdn></billing_msisdn>
	<billing_address_country_code>ID</billing_address_country_code>
	<receiver_name_for_shipping>Faspay Agus</receiver_name_for_shipping>
	<shipping_lastname></shipping_lastname>
	<shipping_address>jalan pintu air raya</shipping_address>
	<shipping_address_city>Jakarta Pusat</shipping_address_city>
	<shipping_address_region>DKI Jakarta</shipping_address_region>
	<shipping_address_state>Indonesia</shipping_address_state>
	<shipping_address_poscode>10710</shipping_address_poscode>
	<shipping_msisdn>08766688686</shipping_msisdn>
	<shipping_address_country_code>ID</shipping_address_country_code>
	<item>
		<id>123</id>
		<product>Glass Plastic</product>
		<qty>1</qty>
		<amount>10000</amount>
		<payment_plan>01</payment_plan>
		<merchant_id>99999</merchant_id>
		<tenor>00</tenor>
		<type>Furniture</type>
		<url>http://localhost:8088/index</url>
		<image_url>https://cdn.mos.cms.futurecdn.net/Mffc35PH77Dq7USrHb4qNm-1200-80.jpg</image_url>
	</item>
	<item>
		<id>234</id>
		<product>Plastic Bucket</product>
		<qty>1</qty>
		<amount>10000</amount>
		<payment_plan>01</payment_plan>
		<merchant_id>99999</merchant_id>
		<tenor>00</tenor>
		<type>Furniture</type>
		<url>http://localhost:8088/kredivo</url>
		<image_url>https://cdn.mos.cms.futurecdn.net/Mffc35PH77Dq7USrHb4qNm-1200-80.jpg</image_url>
	</item>
	<reserve1>0</reserve1>
	<reserve2></reserve2>
	<signature>0d8a326853f3090251fb81b1a56f5c4d5b5f2639</signature>
</faspay>

B. Post Data Transaction Response

Response parameters are the parameters sent by the Faspay system in response to requests made by the merchant system. If any of these parameters do not match or contain incorrect values, the transaction will be rejected by Faspay's system.

For the LinkAja QRIS payment method, there are 2 types of transaction models:

  • Direct Type

  • Redirect Type

Here below are 2 different responses based on the transaction type model.

ParameterData TypeM/O/CDescription

response

Alphanumeric (50)

Mandatory

Response Name

trx_id

Numeric (16)

Mandatory

Transaction ID (Issued/generated by Faspay (Media Indonusa)) Notes: Unique Transaction ID for 1 day or as long as it hasn't been paid and hasn't expired

merchant_id

Numeric (5)

Mandatory

Merchant Code

merchant

Alphanumeric (32)

Mandatory

Merchant Name

bill_no

Alphanumeric (32)

Mandatory

Order Number

bill_items

Array

id

Numeric

Optional

ID product

product

Alphanumeric

Optional

Product name

amount

Numeric

Optional

Nominal product price

merchant_id

Numeric (5)

Mandatory

Merchant Code

qty

Numeric

Optional

Quantity of item

payment_plan

Numeric

Optional

Payment code 1: Full Settlement 2: Installement

tenor

Numeric

Optional

Installment Tenor 00: Full Payment 03: 3 months 06: 6 months 12: 12 months

type

Alphanumeric

Optional

Item type

url

Alphanumeric

Optional

Item Link

image_url

Alfaumeric

Optional

Image item Link

response_code

Numeric (2)

Mandatory

Response Code 00 Success

response_desc

Alphanumeric (32)

Mandatory

Response Code Description

web_url

Alphanumeric

Conditional

Used if the transaction model uses direct type, displaying only QR code in the browser.

qr_content

Alphanumeric

Conditional

Data will be encoded in a QR code generated or processed.

Notes: Use this if the transaction is direct type.

redirect_url

Alphanumeric

Mandatory

Link to Faspay landing page containing QR image

Sample Code for Direct Type

<?xml version="1.0" encoding="UTF-8"?>
<faspay>
	<response>Purchase Details Transmission</response>
	<trx_id>9999971571609433</trx_id>
	<merchant_id>99999</merchant_id>
	<merchant>FASPAY DEMO</merchant>
	<bill_no>849389422312</bill_no>
	<bill_items>
		<id>123</id>
		<product>Glass Plastic</product>
		<qty>1</qty>
		<amount>10000</amount>
		<payment_plan>01</payment_plan>
		<merchant_id>99999</merchant_id>
		<tenor>00</tenor>
		<type>Furniture</type>
		<url>http://localhost:8088/index</url>
		<image_url>https://cdn.mos.cms.futurecdn.net/Mffc35PH77Dq7USrHb4qNm-1200-80.jpg</image_url>
	</bill_items>
	<bill_items>
		<id>234</id>
		<product>Plastic Bucket</product>
		<qty>1</qty>
		<amount>10000</amount>
		<payment_plan>01</payment_plan>
		<merchant_id>99999</merchant_id>
		<tenor>00</tenor>
		<type>Furniture</type>
		<url>http://localhost:8088/kredivo</url>
		<image_url>https://cdn.mos.cms.futurecdn.net/Mffc35PH77Dq7USrHb4qNm-1200-80.jpg</image_url>
	</bill_items>
	<response_code>00</response_code>
	<response_desc>Success</response_desc>
	<web_url>https://debit-urgent-staging.faspay.co.id/__assets/qr/linkaja/99999-9999971571609433.png</web_url>
	<qr_content>00020101021226660014ID.LINKAJA.WWW011893600911002140400102152106140914040010303UME51450015ID.OR.GPNQR.WWW02150000000000000000303UME520454995802ID5906Faspay6007Jakarta61051071062200116999997156141292153033605403100630497F4</qr_content>
</faspay>

Sample Code Response Post Data (Redirect Type)

<?xml version="1.0" encoding="UTF-8" ?>
<faspay>
        <response> Purchase Details Transmission</response>
        <trx_id>9999971150758059</trx_id>
        <merchant_id>99999</merchant_id>
        <merchant>FASPAY DEMO</merchant>
        <bill_no>163b4ef032520a7.07128111</bill_no>
        <bill_items>
	        <id>01</id>
	        <product>Glass Plastic Prem</product>
	        <qty>1</qty>
	        <amount>1000000</amount>
	        <payment_plan>01</payment_plan>
	        <merchant_id>99999</merchant_id>
	        <tenor>00</tenor>
	        <type>Furniture</type>
	        <url>http://localhost</url>
	        <image_url>https://cdn.mos.cms.futurecdn.net/Mffc35PH77Dq7USrHb4qNm-1200-80.jpg</image_url>
         </bill_items>
         <response_code>00</response_code>
         <response_desc>Success</response_desc>
         <redirect_url>https://web.faspay.co.id/pws/100003/2830000010100000/92fb23821115e920a979b3c28ea969d98ac76497?trx_id=9999971150758059&merchant_id=99999&bill_no=163b4ef032520a7.07128111</redirect_url>
</faspay>

2 Display QR Code

Here are two ways to display the QR Code:

  • Redirect Type: To display the QR Code on Faspay's page, redirect using the redirect_url obtained from the Post Data Transaction Response (in JSON format), or refer to the detailed API reference for more information Here

  • Direct Type: To display the QR Code on the merchant's page, if the frontend is HTML, you can use the web_url retrieved from the post-data transaction within an image tag like this: <img src="[web_url]">. Alternatively, you can display it on a similar component without downloading. However, if the front end does not support this scenario, you should download and display the QR code image from that URL on the front end.

3 Callback/Return URL

After the customer completes the payment via LinkAja's website, the LinkAja website automatically redirects the customer to the Callback/Return URL. Please provide the URL and make sure it's already registered on the Faspay system. For details, reference can be found Here

4 Payment Notification

Payment notification from Faspay to the Merchant backend will also be triggered in the event of transaction status getting updated, to ensure the merchant is securely informed. Please provide the URL and make sure it's already registered on the Faspay system

The detailed API reference can be found here

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