I create a new Post of a Location (for storage). I need to populate another field based upon the id (key) of that new post. Example: the new post has an id of 25. The LocationId will be "L"+id or L25. I have the Put API created already but it needs the id of the new Location. How can I access the id of the new location I created to populate the LocationId? Everything else is done and working, verified with Postman.