if(!Auth::once($this->data)){
        return false;
    }
    if(!$user = Auth::user()){
        return false;
    }
    $user->load(['roles.permissions'=>function($query){
        $query->select('permissions.name');
    }]);
    $permissions = $user->roles->first()->permissions;
    $token = JWTAuth::fromUser($user,['permissions'=>$permissions->all()]);
    return $token;