External API - Unique Results

Hello, I need to return a list of unique elements, based upon data from an external API.

My API returns a list of activities, which provides what type of equipment was used for each activity. A separate API call provides the details of the equipment used (i.e. brand name, etc).

What I’m looking to do is provide a list of the unique equipment IDs for a given user; however this isn’t a separate API call that I can make. I was thinking that if I filter the activity listing to the unique equipment IDs that this would return what I need. I tried to structure the Data Source such that:

  • List of Activities
  • Filtered on type of equipment being “not blank”
  • Then :unique elements

But this doesn’t seem to be filtering to unique elements based on the “type”.

Appreciate any help!