Password grant

web.php

$http = new GuzzleHttp\Client;

    $response = $http->post('https://l1nda:[email protected]/oauth/token', [
        'form_params' => [
            'grant_type' => 'password',
            'client_id' => '3',
            'client_secret' => 'QVPm9nGWGQJcgofqkpIvpEnOucWso0E1io4RhQgv',
            'username' => '[email protected]',
            'password' => 'secret',
            'scope' => '',
        ],
    ]);

    return json_decode((string) $response->getBody(), true);