Requesting article/tutorial regarding WCF service for google+

[tg fauzan]

Hi everyone,  can someone experience to do article/tutorial on how to implementing WCF service for google+(without using browser) like this link. By using this link (http://qaru.site/questions/1274790/wpf-application-authentication-with-google), i have try to move and implement the function and try make it as a WCF service interface. This is difficult for me to do it and become problematic. Can you teach the same thing the project done in wcf service.