/**
  * Determine if the authenticated user is a developer.
  *
  * @param  \Illuminate\Http\Request  $request
  * @param  \Closure  $next
  * @return \Illuminate\Http\Response
  */
 public function handle($request, $next)
 {
     if ($request->user() && Spark::developer($request->user()->email)) {
         return $next($request);
     }
     return $request->ajax() || $request->wantsJson() ? response('Unauthorized.', 401) : redirect()->guest('login');
 }