Get the category product stream id

Hi,

I would like to receive certain values for a FacetFilter from a separate table based on the current category product stream ID. Is there a way to get the ID of the product stream? The product streams are assigned to the categories. Now I am thinking that I would have to get the ID via the category array, but I cannot find a way to get to the current category array.

Can anyone help me?

Thanks :wink: