Cancellation Payment

To perform financial transaction request to serve need to authorize your API token and API signature. API token will be generate every request authentication

In order to interact with PAYON's API. First you need to Obtain your API Key. Next generate API's signature for authorization between Merchant and PAYON's server. Finally, obtain your authentication's token for authenticate user account.

Environment	URL
TEST	http://pgtest.payon.com.kh
PRODUCTION	https://pg.payon.com.kh

Cancellation Transaction

POST {{URL}}/pg/reversal

This endpoint allow you to process reversal request.

Request Body

Name	Type	Description
sign	string	Sign is a digital signature for verifying the authenticity of digital messages or documents. Only a valid API's sign can be interact with PAYON's Server.
txId*	string	Transaction identification
merchantId*	string	Merchant Identification
termId*	string	Merchant Terminal identification

200

{
    "txId": "2435",
    "merchantId": "EPAY00000000001",
    "termId": "PAYONGT1",
    "amount": 1.00,
    "currency": "USD",
    "resultCode": "0000",
    "resultMessage": "Success",
    "approvalNo": "538433",
    "approvalDate": "09122020110737",
    "acsUrl": null,
    "refNo": "000004538433",
    "transactionAmount": null
}

Generate API Signature

Example Request

cURL

curl --location --request POST 'http://pgtest.payon.com.kh/pg/reversal' \
--data-raw '{
    "txId":"159607654560937",
    "merchantId":"C0000143",
    "termId":"CT03000003"
}'

HTTP

POST /pg/reversal HTTP/1.1
Host: pgtest.payon.com.kh


{
    "txId":"159607654560937",
    "merchantId":"C0000143",
    "termId":"CT03000003"
}

PHP_Http-Request2

<?php
require_once 'HTTP/Request2.php';
$request = new HTTP_Request2();
$request->setUrl('http://pgtest.payon.com.kh:36605/pg/reversal');
$request->setMethod(HTTP_Request2::METHOD_POST);
$request->setConfig(array(
  'follow_redirects' => TRUE
));
$request->setBody('{\n    "txId":"159607654560937",\n    "merchantId":"C0000143",\n    "termId":"CT03000003",\n    "approvalNo":"1"\n\n\n}');
try {
  $response = $request->send();
  if ($response->getStatus() == 200) {
    echo $response->getBody();
  }
  else {
    echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
    $response->getReasonPhrase();
  }
}
catch(HTTP_Request2_Exception $e) {
  echo 'Error: ' . $e->getMessage();
}

PHP_cURL

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "http://pgtest.payon.com.kh/pg/reversal",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS =>"{\n    \"txId\":\"159607654560937\",\n    \"merchantId\":\"C0000143\",\n    \"termId\":\"CT03000003\",\n    \"approvalNo\":\"1\"\n\n\n}",
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

Javascript-Jquery

var settings = {
  "url": "http://pgtest.payon.com.kh/pg/reversal",
  "method": "POST",
  "timeout": 0,
  "data": "{\n    \"txId\":\"159607654560937\",\n    \"merchantId\":\"C0000143\",\n    \"termId\":\"CT03000003\",\n    \"approvalNo\":\"1\"\n\n\n}",
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

Javascript-XHR

var data = "{\n    \"txId\":\"159607654560937\",\n    \"merchantId\":\"C0000143\",\n    \"termId\":\"CT03000003\",\n    \"approvalNo\":\"1\"\n\n\n}";

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "http://pgtest.payon.com.kh/pg/reversal");

xhr.send(data);