code: public function handle($request, Closure $next)
      {
          if (!$request->secure() && env('APP_ENV') === 'production') {
              return redirect()->secure($request->getRequestUri());
          }
  
          return $next($request);
      }
docs: Handle an incoming request.
  
  @param  \Illuminate\Http\Request  $request
  @param  \Closure  $next
  @return mixed