/home/kueuepay/public_html/vendor/guzzlehttp/psr7/src/Request.php
<?php

declare(strict_types=1);

namespace GuzzleHttp\Psr7;

use InvalidArgumentException;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UriInterface;

/**
 * PSR-7 request implementation.
 */
class Request implements RequestInterface
{
    use MessageTrait;

    /** @var string */
    private $method;

    /** @var string|null */
    private $requestTarget;

    /** @var UriInterface */
    private $uri;

    /**
     * @param string                               $method  HTTP method
     * @param string|UriInterface                  $uri     URI
     * @param (string|string[])[]                  $headers Request headers
     * @param string|resource|StreamInterface|null $body    Request body
     * @param string                               $version Protocol version
     */
    public function __construct(
        string $method,
        $uri,
        array $headers = [],
        $body = null,
        string $version = '1.1'
    ) {
        $this->assertMethod($method);
        if (!($uri instanceof UriInterface)) {
            $uri = new Uri($uri);
        }

        $this->method = strtoupper($method);
        $this->uri = $uri;
        $this->setHeaders($headers);
        $this->protocol = $version;

        if (!isset($this->headerNames['host'])) {
            $this->updateHostFromUri();
        }

        if ($body !== '' && $body !== null) {
            $this->stream = Utils::streamFor($body);
        }
    }

    public function getRequestTarget(): string
    {
        if ($this->requestTarget !== null) {
            return $this->requestTarget;
        }

        $target = $this->uri->getPath();
        if ($target === '') {
            $target = '/';
        }
        if ($this->uri->getQuery() != '') {
            $target .= '?'.$this->uri->getQuery();
        }

        return $target;
    }

    public function withRequestTarget($requestTarget): RequestInterface
    {
        if (preg_match('#\s#', $requestTarget)) {
            throw new InvalidArgumentException(
                'Invalid request target provided; cannot contain whitespace'
            );
        }

        $new = clone $this;
        $new->requestTarget = $requestTarget;

        return $new;
    }

    public function getMethod(): string
    {
        return $this->method;
    }

    public function withMethod($method): RequestInterface
    {
        $this->assertMethod($method);
        $new = clone $this;
        $new->method = strtoupper($method);

        return $new;
    }

    public function getUri(): UriInterface
    {
        return $this->uri;
    }

    public function withUri(UriInterface $uri, $preserveHost = false): RequestInterface
    {
        if ($uri === $this->uri) {
            return $this;
        }

        $new = clone $this;
        $new->uri = $uri;

        if (!$preserveHost || !isset($this->headerNames['host'])) {
            $new->updateHostFromUri();
        }

        return $new;
    }

    private function updateHostFromUri(): void
    {
        $host = $this->uri->getHost();

        if ($host == '') {
            return;
        }

        if (($port = $this->uri->getPort()) !== null) {
            $host .= ':'.$port;
        }

        if (isset($this->headerNames['host'])) {
            $header = $this->headerNames['host'];
        } else {
            $header = 'Host';
            $this->headerNames['host'] = 'Host';
        }
        // Ensure Host is the first header.
        // See: https://datatracker.ietf.org/doc/html/rfc7230#section-5.4
        $this->headers = [$header => [$host]] + $this->headers;
    }

    /**
     * @param mixed $method
     */
    private function assertMethod($method): void
    {
        if (!is_string($method) || $method === '') {
            throw new InvalidArgumentException('Method must be a non-empty 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.

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