login controller

<?php

namespace App\Http\Controllers\API\Auth;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

use GuzzleHttp\Exception\GuzzleException;
use GuzzleHttp\Client;

class LoginController extends Controller
{
    /**
     * Index Function.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        $http = new Client;

        // Response send exception here for 401 bad request which makes this route 500 bad request
        $response = $http->post(url('oauth/token'), [
            'form_params' => [
                'grant_type' => 'password',
                'client_id' => '2',
                'client_secret' => 'XXXXXXXXX',
                'username' => $request->post('username'),
                'password' => $request->post('password'),
                'scope' => '*',
            ],
        ]);

        // i dont get this response because the response sends exception before this
        return json_decode((string) $response->getBody(), true);
    }
}