/home/kueuepay/public_html/vendor/stripe/stripe-php/lib/ApiResource.php
<?php

namespace Stripe;

/**
 * Class ApiResource.
 *
 * */
abstract class ApiResource extends StripeObject
{
    use ApiOperations\Request;

    /**
     * @return \Stripe\Util\Set A list of fields that can be their own type of
     * API resource (say a nested card under an account for example), and if
     * that resource is set, it should be transmitted to the API on a create or
     * update. Doing so is not the default behavior because API resources
     * should normally be persisted on their own RESTful endpoints.
     */
    public static function getSavedNestedResources()
    {
        static $savedNestedResources = null;
        if (null === $savedNestedResources) {
            $savedNestedResources = new Util\Set();
        }

        return $savedNestedResources;
    }

    /**
     * @var bool A flag that can be set a behavior that will cause this
     * resource to be encoded and sent up along with an update of its parent
     * resource. This is usually not desirable because resources are updated
     * individually on their own endpoints, but there are certain cases,
     * replacing a customer's source for example, where this is allowed.
     */
    public $saveWithParent = false;

    public function __set($k, $v)
    {
        parent::__set($k, $v);
        $v = $this->{$k};
        if ((static::getSavedNestedResources()->includes($k))
            && ($v instanceof ApiResource)) {
            $v->saveWithParent = true;
        }
    }

    /**
     * @throws Exception\ApiErrorException
     *
     * @return ApiResource the refreshed resource
     */
    public function refresh()
    {
        $requestor = new ApiRequestor($this->_opts->apiKey, static::baseUrl());
        $url = $this->instanceUrl();

        list($response, $this->_opts->apiKey) = $requestor->request(
            'get',
            $url,
            $this->_retrieveOptions,
            $this->_opts->headers
        );
        $this->setLastResponse($response);
        $this->refreshFrom($response->json, $this->_opts);

        return $this;
    }

    /**
     * @return string the base URL for the given class
     */
    public static function baseUrl()
    {
        return Stripe::$apiBase;
    }

    /**
     * @return string the endpoint URL for the given class
     */
    public static function classUrl()
    {
        // Replace dots with slashes for namespaced resources, e.g. if the object's name is
        // "foo.bar", then its URL will be "/v1/foo/bars".

        /** @phpstan-ignore-next-line */
        $base = \str_replace('.', '/', static::OBJECT_NAME);

        return "/v1/{$base}s";
    }

    /**
     * @param null|string $id the ID of the resource
     *
     * @throws Exception\UnexpectedValueException if $id is null
     *
     * @return string the instance endpoint URL for the given class
     */
    public static function resourceUrl($id)
    {
        if (null === $id) {
            $class = static::class;
            $message = 'Could not determine which URL to request: '
               . "{$class} instance has invalid ID: {$id}";

            throw new Exception\UnexpectedValueException($message);
        }
        $id = Util\Util::utf8($id);
        $base = static::classUrl();
        $extn = \urlencode($id);

        return "{$base}/{$extn}";
    }

    /**
     * @return string the full API URL for this API resource
     */
    public function instanceUrl()
    {
        return static::resourceUrl($this['id']);
    }
}
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.

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