未从cakephp中的api获取数据

use Cake\Routing\RouteBuilder;
use Cake\Routing\Router;
use Cake\Routing\Route\DashedRoute;

Router::defaultRouteClass(DashedRoute::class);

Router::scope('/', function (RouteBuilder $routes) {
    $routes->connect('/api/data', ['controller' => 'Api', 'action' => 'getData']);
});

namespace App\Middleware;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class CorsMiddleware
{
    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, $next)
    {
        $response = $next($request, $response);
        return $response
            ->withHeader('Access-Control-Allow-Origin', '*')
            ->withHeader('Access-Control-Allow-Headers', 'X-Requested-With, Content-Type, Accept, Origin, Authorization')
            ->withHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
    }
}

namespace App\Controller\Api;

use App\Controller\AppController;
use Cake\Http\Response;

class ApiController extends AppController
{
    public function initialize(): void
    {
        parent::initialize();
        $this->loadComponent('RequestHandler');
    }

    public function getData()
    {
        $data = ['key' => 'value'];
        $this->set([
            'data' => $data,
            '_serialize' => ['data']
        ]);
    }
}