Laravel 5.5 WhereIn query with null

return $places = Place::where('name', 'like', '%' . $request->name . '%')
            ->whereHas('eatCategories', function($q) use($kitchen){
                $q->WhereIn('eat_category_id', $kitchen);
            })
            ->whereHas('services', function($q) use($service){
                $q->WhereIn('service_id', $service);
            })
            ->whereHas('paymentMethods', function($q) use($payment){
                $q->WhereIn('place_attribute_id', $payment);
            })->get();

My query is working but if the variables are empty, the query is not working until all is full.

$q->WhereIn('eat_category_id', $kitchen);

If $kitchen is empty, how can I resume the query?

My route :

Route::get('/api/get-filter-places/{name?}/{kitchen?}/{service?}/{payment?}', 'FrontController@getFilterPlaces');

via Chebli Mohamed