Self updating contacts
First, create an XML representation of the shared contact to publish.This XML needs to be in the form of an Atom element.In addition to providing some background on the capabilities of the Shared Contacts API, this document provides examples of how to manipulate contacts using XML and HTTP.After reading this document, you may wish to learn more about interacting with the API using our client libraries by reading the programming-language specific sections of this developer's guide.
Hint: To track incremental changes to a domain shared contact list, do the following: When you send a request for a feed, keep track of the value of the feed's status code and an entry containing the contact.
The following general process applies to all application types: Some flows include additional steps, such as using refresh tokens to acquire new access tokens.
For detailed information about flows for various types of applications, see Google's OAuth 2.0 documentation.
This document assumes that you understand the general ideas behind the Google Data APIs protocol.
If you're using a UNIX system and you want to try the examples in this document without writing any code, you may find the UNIX command-line utilities useful, as well as detailed instructions on using c URL with Google Data services.