login with lds account .net c#

Hi there,

I am writing an app, where church members can login with their lds account and can access to their data (name, address, calling, etc).
I have tried different ways for the login (with HttpClient), but without success. Also I could not find the lds stack package in Nuget.
Could you please send me a „working“ example in c# how to login and how to access my data (for example my calling).
A simple console application would be just fine.

Thank you.

Cheers
Rob

Only church apps are authorized to log into member accounts. The only exception is for FamilySearch, but you need to be a registered developer with them.