Can any one please tell me the expiration time for Refresh token generation through OAuth2. Actually it usually returns 2 parameter access token and refresh token. We used refresh token in order to generate a new access toke if access token get expired. But Google Calendar Version3, i am using refresh token in order to call the calendar API. But here i am getting a problem that token get expires. So can any one please suggest me what can i do when token get expires. According to me there is no expiration time for refresh token. Kindly check the code below for creation of calendar service using refresh token :-
private CalendarService CreateService(string token)
{
KeyValuePair<string, string> credentials = Common.Get3LOCredentials();
var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description);
provider.ClientIdentifier = credentials.Key;
provider.ClientSecret = credentials.Value;
var auth = new Google.Apis.Authentication.OAuth2.OAuth2Authenticator<NativeApplicationClient>(provider, (p) => GetAuthorization(provider, token));
CalendarService service = new CalendarService(new BaseClientService.Initializer()
{
Authenticator = auth,
ApiKey = ConfigurationManager.AppSettings["APIkey"].ToString(),
GZipEnabled = false
});
return service;
}
private static IAuthorizationState GetAuthorization(NativeApplicationClient arg, String Refreshtoken)
{
IAuthorizationState state = new AuthorizationState(new[] { CalendarService.Scopes.Calendar.GetStringValue() });
state.Callback = new Uri(NativeApplicationClient.OutOfBandCallbackUrl);
state.RefreshToken = Refreshtoken;
return state;
}
