API- GET / Search Request

I may be missing a setting somewhere, but I can not seem to find any info on how to make a GET request to Glide to retrieve/Search data in glide via the API. I tried to do it using the same CURL used for adding and updating rows, but the response fails. I also see in this video that the feature existed at one point, but seems to have disappeared now. Does anyone know what needs to be different to make a GET request? I pause the video, but only part of the code is visible. It appears the URL, Content-Type, and header authorization are all the same as the other 3 request types.