Hi Stefan, It is not possible to subscribe to a notification server, but you can query only the latest changes.
For example, to send a date-range query, add the updated-min parameter to the request URL. To get all the contact entries updated after March 16, 2009, send an HTTP request to the contact's feed URL: GET http://www.google.com/m8/feeds/contacts/liz%40gmail.com/full?updated-min=2009-03-16T00:00:00 More Info: http://code.google.com/apis/contacts/docs/3.0/developers_guide_protocol.html#retrieving_with_query Cheers, Julian On Nov 18, 7:58 am, steki <[email protected]> wrote: > Hi, > > is it possible togeta notification if part of the data has changed? > > example: > the user has an mobile device that uses google sync to update > contacts, calendar, ... > the user has a small webapp for managing conctacs and todo's. when > adding a new contact, the webapp adds this new contact or any changes > to the google contacts. then google sync these updates to the iphone. > > the user now adds new contact data from the mobile device. google > syncs this new contact to google contacts. > > now the question is: > how do igetnotified when new data has arrives and needs to be > updates to the webapp? > is there a notification service that i can register to? polling data > from google contacts regular intervals is a bad solution. > > an easy solution would be to register for updates with a given url > (e.g please call <url> when data has changed), where url points to my > webapp > my.webapp.com/update_from_contacts > > thanks > stefan -- You received this message because you are subscribed to the Google Groups "Google Contacts API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-contacts-api?hl=.
