Know the Response status code when using a named RateLimiter

[okaufmann]

Hi Guys

For an unauthenticated request for sending help forms, I need a rate limit.
But the limit should only be applied if the request was successful (Calls that returns a validation error, should not be counted).
For this, it would be great to get the response into the rate limit callback, which currently is not passed through.

The following Code shows my idea:

RateLimiter::for('forms', function (Request $request, Response $response) {
    // $response is not available here.
    if ($response->status() === 429) {
        return Limit::none();
    }

    return Limit::perMinute(2)->by("forms-ratelimit-{$request->ip()}");
});

Do you think that this should be possible?
I could start a PR that changes the following line to the following

framework/src/Illuminate/Routing/Middleware/ThrottleRequests.php

Line 85 in 277c2fb

$limiterResponse = call_user_func($limiter, $request);

$limiterResponse = call_user_func($limiter, $request, $next($request));

But this feels wrong to me in terms of performance...

Maybe someone has another idea how to solve this?