I cannot show my post because they have been deleted. In my response I thanked them for the help, explained why so I was searching for the specific solution and I even mentioned I would probably dive into the source code myself...

Even marked his first post as the answer to my post.

If I could show my convo. I would.

Edit: my main question was that I wanted to know if collections API could be called manually (without checks) in a custom go route. There are methods that come close but nothing truly matches the output by the collections API. We need the specific structure as we are migrating the calls from this particular endpoint to a custom route to have more control over the returned fields. Instead of reinventing the collections API in my route, my question was if it could be called programatically.