Authentication

Use the login method for the authentication process in the 2Checkout system.

Parameters

Parameter	Type / Description
merchantCode	Required (string) Your merchant identification code.
date	Required (string) GMT ISO Date format (e.g. 2010-01-01 12:13:14)
hash	Required (string) Calculated HMAC_SHA256 signature based on merchantCode and date, using your secret key.

Request

To create the HMAC_SHA256 source string, use your merchant code and the date of the request, prefixing them with the length in bytes of each respective value, along with your account’s secret key (for UTF-8 characters, the length in bytes might be longer than the string length).

For example:

Parameter	Type / Description
merchantCode	Your merchant account code. 8AVANGATE
date	2010-05-13 12:12:12 192010-05-13 12:12:12
HMAC source string	8AVANGATE192010-05-13 12:12:12
Secret key	SECRET_KEY
Calculated HMAC_SHA256 signature based on MerchantCode and Date, using your secret key:	bf763db7d333e9c3038698cf59ada3e6

Request sample

<?php

/**
 * @throws JsonException
 */
function callRPC($Request, $host) {
    $curl = curl_init($host);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 1);
    curl_setopt($curl, CURLOPT_VERBOSE, true);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);
    curl_setopt($curl, CURLOPT_SSLVERSION, 0);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/json', 'Accept: application/json'));
    $RequestString = json_encode($Request, JSON_THROW_ON_ERROR);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $RequestString);

    $ResponseString = curl_exec($curl);

    if (!empty($ResponseString)) {
        echo($ResponseString);
        $Response = json_decode($ResponseString, false, 512, JSON_THROW_ON_ERROR);
        if (isset($Response->result)) {
            return $Response->result;
        }
        if (!is_null($Response->error)) {
            echo("Method: {$Request->method}" . PHP_EOL);
            echo("Error: {$Request->error}" . PHP_EOL);
        }
    } else {
        return null;
    }
    return null;
}

$host = 'https://api.2checkout.com/rpc/6.0/';

$merchantCode = "YOUR_MERCHANT_CODE"; // your account's merchant code available in the 'System settings' area of the cPanel: https://secure.2checkout.com/cpanel/account_settings.php
$key = "YOUR_SECRET_KEY"; // your account's secret key available in the 'System settings' area of the cPanel: https://secure.2checkout.com/cpanel/account_settings.php

$string = strlen($merchantCode) . $merchantCode . strlen(gmdate('Y-m-d H:i:s')) . gmdate('Y-m-d H:i:s');
$algo = "sha256";
$hash = hash_hmac($algo, $string, $key);

$i = 1;

$jsonRpcRequest = new stdClass();
$jsonRpcRequest->jsonrpc = '2.0';
$jsonRpcRequest->method = 'login';
$jsonRpcRequest->params = array($merchantCode, gmdate('Y-m-d H:i:s'), $hash, $algo);
$jsonRpcRequest->id = $i++;

try {
    $sessionID = callRPC($jsonRpcRequest, $host);
    echo("Auth token: {$sessionID}" . PHP_EOL);
} catch (JsonException $e) {
    echo("Error: {$e->getMessage()}" . PHP_EOL);
}

Response

Parameter	Type / Description
sessionID	String Session identifier string. An exception will be thrown if the values are incorrect. The sessionID expires in 10 minutes.