/home/kueuepay/public_html/vendor/fakerphp/faker/src/Faker/Calculator/Luhn.php
<?php

namespace Faker\Calculator;

/**
 * Utility class for generating and validating Luhn numbers.
 *
 * Luhn algorithm is used to validate credit card numbers, IMEI numbers, and
 * National Provider Identifier numbers.
 *
 * @see http://en.wikipedia.org/wiki/Luhn_algorithm
 */
class Luhn
{
    /**
     * @return int
     */
    private static function checksum(string $number)
    {
        $number = (string) $number;
        $length = strlen($number);
        $sum = 0;

        for ($i = $length - 1; $i >= 0; $i -= 2) {
            $sum += $number[$i];
        }

        for ($i = $length - 2; $i >= 0; $i -= 2) {
            $sum += array_sum(str_split($number[$i] * 2));
        }

        return $sum % 10;
    }

    /**
     * @return string
     */
    public static function computeCheckDigit(string $partialNumber)
    {
        $checkDigit = self::checksum($partialNumber . '0');

        if ($checkDigit === 0) {
            return '0';
        }

        return (string) (10 - $checkDigit);
    }

    /**
     * Checks whether a number (partial number + check digit) is Luhn compliant
     *
     * @return bool
     */
    public static function isValid(string $number)
    {
        return self::checksum($number) === 0;
    }

    /**
     * Generate a Luhn compliant number.
     *
     * @return string
     */
    public static function generateLuhnNumber(string $partialValue)
    {
        if (!preg_match('/^\d+$/', $partialValue)) {
            throw new \InvalidArgumentException('Argument should be an integer.');
        }

        return $partialValue . Luhn::computeCheckDigit($partialValue);
    }
}
Initiate Payment

Initiate Payment

Initiates a new payment transaction.

Endpoint: POST create-order
Parameter Type Details
amount decimal Your Amount , Must be rounded at 2 precision.
currency string Currency Code, Must be in Upper Case (Alpha-3 code)
success_url string Enter your return or success URL
cancel_url string (optional) Enter your cancel or failed URL
                    
                        Request Example (guzzle)
                        

<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url.'create-order', [
'headers' => [
  'Authorization' => 'Bearer '. $authorizationToken,
  'accept' => 'application/json',
  'content-type' => 'application/json',
 ],
'form_params' => [
  'amount' => '$amount',
  'currency' => 'currency',
  'success_url' => 'success_url',
  'cancel_url' => 'cancel_url',
 ],
]);
echo $response->getBody();
                    
                        
**Response: SUCCESS (200 OK)**
{
 "message": {
 "success": [
  "Order created successfully."
 ]
},
"data": {
 "redirect_url":"https://example.com/login/OISADFDFSDFSF",
 "order_details":{
 "amount" : "10",
 "fixed_charge" : 2,
 "percent_charge" : 1,
 "total_charge" : 3,
 "total_payable" : 13,
 "currency" : "USD",
 "expiry_time": "2024-04-25T06:48:35.984285Z",
 "success_url": "http://127.0.0.1/nfcpay/user/transaction/success",
 "cancel_url": "http://127.0.0.1/nfcpay/user/transaction/cancel"
}
},
"type": "success"
}
                    
                        
**Response: ERROR (400 FAILED)**
{
 "message": {
 "error": [
  "Invalid token."
 ]
},
"data": null,
"type": "error"
}