rail_rails cache templates based on current_user

I'm using rabl_rails for generating json for my rails app and caching most of them for faster response. Things work great for non logged in users but I also want to able to cache responses for logged in users with their ID append in the cache key but as per the documentation, instance variables are not available in the rabl template due to the way its designed. You can find it here https://github.com/ccocchi/rabl-rails#how-it-works

What I am trying to achieve is this

cache "api/v1/home/top_menu_data-#{@current_user.id}"

but this doesn't work according to the document.

Has anyone done this before ? How do I achieve this ?

PS: This is feasible with rabl but not with rail_rails as far as I know. Would love to know ideas on how to be able to do this.

Thanks in advance.

Solution

As per the discussion with developer of the gem, its found that it can't access any instance variables or params hash. The discussion could be found here

I started using rabl for generating json for my views which works great.