Laravel 5.5 - Validate Multiple Form Request - at the same time

Question

The question is already asked here for a previous version of laravel and not yet answered.

I have a html form which is validated using three different

Answer 1

Turns out if you resolve the request, validation will kick in.
One caveat of this is that all the validation objects will not kick in at once but depending on your use case, this might be simpler.

    public function store()
    {
        // request()->replace([ some fields to be validated ]);
        resolve(TransportationRequest::class);
        resolve(PurchaseRequest::class);
        resolve(SaleRequest::class);
        // request is valid
    }