RESTFul route + search terms via querystring

In the index() method, check for the presence of values. And there you can already call the method or not call it.
Routes only work with a path.

Well, routes are working with path, but you can still need to use querystrings (typically in a search/filter context).

Finally, I made it with 2 different routes :

App/Config/Routes.php

PHP Code:

$routes->get('api/products/search/', 'Api\Products::search');
$routes->resource('api/products', ['controller' => 'Api\Products']); 


I can then define a proper search() method within my controller without having to pass thru index()

/App/Controllers/Api/Products.php

PHP Code:

class Products extends ResourceController
{
    public function search()
    {
        $arrFilters = $this->request->getVar();

        $res = serializer_instance()->toArray(repo_instance()->getProductRepo()->findBy($arrFilters));
        if (!$res) return $this->failNotFound();
        return $this->respond($res);
    }
} 


Note that the search can take several parameters thru the getVar() array so that following call is working /public/api/products/search/?maxprice=10&category=beverages&subcategory=beer