Survey123 pull data(@json) from a point choose nearest segment from json

[SteveBrewer]

I am trying to build a question. I have a json file named Segment_ID that I created from a feature class. In Survey 123 I want users to either drop a geopoint and based on proximity return the Label ID for that point, or the field auto-calculates the result. Ive played around with different formats and none of it seems to work well. 

I figure after capturing the point, I need to create question that auto populates the x and y values to then compare the answer with the json. 

Screenshot of what Ive started