How Google API V 3.0 .Net library and Google OAuth2 Handling refresh token

Question

In my application I am using Google API V 3.0 .Net library with Google OAuth2 to synchronize Google calender and outlook calender. I am using below code to get the Google.Ap

Answer 1

That's the butty of the client library! this magic is done for you automatically :)

UserCredential implements both IHttpExecuteInterceptor and IHttpUnsuccessfulResponseHandler. so whenever the access token is going to be expired, or is already expired, the client makes a call to the authorization server to refresh the token and get a new access token (which is valid for the next 60 minutes).

Read more about it at https://developers.google.com/api-client-library/dotnet/guide/aaa_oauth#credentials