I am designing a web site to use OpenId and Google is one of the main providers I have selected. What I would like to do is use Google\'s Calendar & Contacts (possibly docs
After a lot of digging in to this problem I have 2 ways of solving this.
Look at google's OAuth 1.0 for Web Applications.
Also look at OAuth-OpenID: You’re Barking Up the Wrong Tree if you Think They’re the Same Thing for a good overview of OpenID vs OAuth.