Oauth2

OAuth 2.0, which stands for “Open Authorization,” is a framework that enables a website or application to obtain access to resources managed by other web applications on a user’s behalf. This protocol focuses on authorization and relies on access tokens. It is a data element that signifies the user’s permission to access specific resources.

POST

https://kraken.airpay.co.in/airpay/pay/v4/api/oauth2

Request Body

Parameter	Type Value	Description	Value Like
client_id required	String (1-20)	A unique identifier provided by the airpay, used as a credential for generating an access token.	4b88dc
client_secret required	String (1-200)	A confidential key provided by the airpay team, used along with the Client ID to authenticate and generate an access token.	51d68722cca2b4bb096262c326bd24bb
merchant_id required	Number (1-20)	airpay merchant identifier.	456
grant_type required	String (1-50)	Specifies the authentication flow for obtaining an access token.	client_credentials

Success 200

Parameter	Type Value	Description	Value Like
access_token required	String	A temporary token used to authenticate API requests, obtained using valid client credentials.	00f9a570f917aa8a5df6ae532b5b773f71a00a1a
expires_in required	String	The duration (in seconds) for which the access token remains valid before expiration.	300
scope optional	String	Defines the level of access granted to the access token for specific API resources and actions.	null

PHP

<?php
$merchant_id   = "<merchant_id>";
$client_secret = "<client_secret>";
$client_id     = "<client_id>";
$secretKey     = '<secretKey>';

$data = array();
$data['client_id']      = $client_id;
$data['client_secret']  = $client_secret;
$data['merchant_id']    = $merchant_id;
$data['grant_type']     = 'client_credentials';

$encdata     = encrypt(json_encode($data), $secretKey);
$checksum   = checksum($data);

$payload    = ['merchant_id'=>$merchant_id,
               'encdata' => $encdata,
               'checksum' => $checksum
              ];

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://kraken.airpay.co.in/airpay/pay/v4/api/oauth2/',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => $payload
));

$result = curl_exec($curl);

curl_close($curl);
$response = json_decode($result)->response;
$access_token_data = decrypt($response,$secretKey);

Success Response

    HTTP/1.1 200 OK
{
  "status_code": "200",
  "response_code": "00",
  "status": "success",
  "message": "Success",
  "data": {
    "access_token": "00f9a570f917aa8a5df6ae532b5b773f71a00a1a",
    "expires_in": 300,
    "scope": null
  }
}

Error Response

    HTTP/1.1 200 OK
{
  "status_code": "400",
  "error_code": "903",
  "status": "fail",
  "message": "Invalid client id or secret",
}