How to implement OAuth in google classroom
问题 Presently i am working on google classroom API to integrate classroom into my .NET product.I am using below method for authenticating user.My problem is when i execute this code it asking authentication for first time but when i execute this code next time it directly log in as previous log in credentials.When i try this after many days and many browsers also directly log in as first authenticated user.But for every fresh time execution of code i want it ask for authentication of user rather