/home/kueuepay/public_html/vendor/guzzlehttp/guzzle/src/MessageFormatterInterface.php
<?php

namespace GuzzleHttp;

use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

interface MessageFormatterInterface
{
    /**
     * Returns a formatted message string.
     *
     * @param RequestInterface       $request  Request that was sent
     * @param ResponseInterface|null $response Response that was received
     * @param \Throwable|null        $error    Exception that was received
     */
    public function format(RequestInterface $request, ResponseInterface $response = null, \Throwable $error = null): string;
}
Authentication

Authentication

To access the Kueue Pay Developer API, you’ll need an API key. You can obtain your API key by logging in to your Kueue Pay merchant account and navigating to the API section. Collect Client ID , Secret ID & Merchant ID Carefully. Keep your API key confidential and do not share it publicly.

If you don't have any merchant account please Register to continue