Since the latest changes to the Google Fit REST API, location data can only be read by the application initially wrote the data. See Google fit permission problems.
This is too bad since it allowed for useful features as tracking routes for workouts. But I can live without this.
However, what I really need for my data analysis is elevation data, i.e., track the elevation gain of the user during a workout session. Altitude gain is a rather important metric in the analysis of certain activities, often more important than distance.
My question is thus: Without the access to the location data (which included the user's altitude), how can I query elevation data from google fit for a given session?
Thanks for any ideas.