Controllers

Each actions in controller takes PSR7 Request and Response as parameters. Bellow is an example of controller.

namespace ProfcartAPI\Controllers;

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

class IndexController
{
    public function getIndex(RequestInterface $request, ResponseInterface $response) {
        $response = $response->withData([
            'ket' => 'value'
        ]);
        return $response;
    }
    public function postIndex(RequestInterface $request, ResponseInterface $response) {
        $response = $response->withData([
            'message' => 'Data added'
        ]);
        return $response;
    }
    public function putIndex(RequestInterface $request, ResponseInterface $response) {
        $response = $response->withData([
            'name' => 'Data updated'
        ]);
        return $response;
    }
}

Action names prefix with "get/post/put/delete" to indicate HTTP method.