Curl request

hi,


 i must do a request to booking , in their api this is the request :

Code:

        curl -X POST --user '<CLIENT_ID>:<CLIENT_SECRET>' -H 'Content-Type: application/x-www-form-urlencoded' 'https://dispatchapi-sandbox-qa.auth.eu-west-1.amazoncognito.com/oauth2/token?grant_type=client_credentials'

how can i transform to use with codeingiter ?

this is my code :

Code:

    public function getToken(){


        $client_id       = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
        $client_secret = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxx';

        $apiURL = 'https://dispatchapi-sandbox-qa.auth.eu-west-1.amazoncognito.com/oauth2/token?grant_type=client_credentials';



        $client = \Config\Services::curlrequest();

        $response = $client->request('POST', $apiURL, [
            'user' => [$client_id,  $client_secret],
        ]);

        // Read response
        $code = $response->getStatusCode();
        $reason = $response->getReason();

        if($code == 200){ // Success

            // Read data
            $body = json_decode($response->getBody());


            dd($body);

            $first_name = $body->first_name;
            $last_name = $body->last_name;
            $email = $body->email;

            echo "first_name : ".$first_name."<br>";
            echo "last_name : ".$last_name."<br>";
            echo "email : ".$email."<br>";

        }else{
            echo "failed";
            die;
        }

    }

But i have : 
22 : The requested URL returned error: 405

how can i transform ?