setup-client.php

<?php

use Tmdb\Client;
use Tmdb\Event\BeforeRequestEvent;
use Tmdb\Event\Listener\Request\AcceptJsonRequestListener;
use Tmdb\Event\Listener\Request\ApiTokenRequestListener;
use Tmdb\Event\Listener\Request\ContentTypeJsonRequestListener;
use Tmdb\Event\Listener\Request\UserAgentRequestListener;
use Tmdb\Event\Listener\RequestListener;
use Tmdb\Event\RequestEvent;
use Tmdb\Token\Api\ApiToken;
use Tmdb\Token\Api\BearerToken;

$token = defined('TMDB_BEARER_TOKEN') && TMDB_BEARER_TOKEN !== 'TMDB_BEARER_TOKEN' ?
    new BearerToken(TMDB_BEARER_TOKEN) :
    new ApiToken(TMDB_API_KEY);

$ed = new Symfony\Component\EventDispatcher\EventDispatcher();

$client = new Client(
    [
        /** @var ApiToken|BearerToken */
        'api_token' => $token,
        'event_dispatcher' => [
            'adapter' => $ed
        ],
        // We make use of PSR-17 and PSR-18 auto discovery to automatically guess these, but preferably set these explicitly.
        'http' => [
            'client' => null,
            'request_factory' => null,
            'response_factory' => null,
            'stream_factory' => null,
            'uri_factory' => null,
        ]
    ]
);

/**
 * Required event listeners and events to be registered with the PSR-14 Event Dispatcher.
 */
$requestListener = new RequestListener($client->getHttpClient(), $ed);
$ed->addListener(RequestEvent::class, $requestListener);

$apiTokenListener = new ApiTokenRequestListener($client->getToken());
$ed->addListener(BeforeRequestEvent::class, $apiTokenListener);

$acceptJsonListener = new AcceptJsonRequestListener();
$ed->addListener(BeforeRequestEvent::class, $acceptJsonListener);

$jsonContentTypeListener = new ContentTypeJsonRequestListener();
$ed->addListener(BeforeRequestEvent::class, $jsonContentTypeListener);

$userAgentListener = new UserAgentRequestListener();
$ed->addListener(BeforeRequestEvent::class, $userAgentListener);

return $client;