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  • 1. Getting stuff in and out of Buzz A quick guide Paul Kinlan Developer Programs Engineer
  • 2. Who am I? @Paul_Kinlan I help you build cool stuff!
  • 3. What is Buzz? A platform for sharing. Built supporting open protocols
  • 4. Technologies A very brief overview
  • 5. PubSubHubbub Don't call us. We'll call you!
  • 6. Activity Streams A way of expressing what people do on the web
  • 7. MediaRSS Embed content and meta-data into your feeds.
  • 8. XFN + Social Graph API A way to express machine readable connections between people.
  • 9. WebFinger For a given public account (email address) WebFinger returns an XRD. Contains information about where we can discover information. Helps discover the OpenID endpoint. Web Finger -> Profile -> OpenID The XRD Document also points to a Buzz Feed Web Finger -> Buzz Feed
  • 10. Common Questions How do I discover a user's Buzz feed? How do I get notified of updates to a users Buzz feed? How can I get my feeds into Buzz?
  • 11. All about a demo Create a service that uses discovery and login
  • 12. Quick Flow
  • 13. WebFinger result An example response for a profile that is publicly listed and has a public username. Query: http://www.google.com/s2/webfinger/?q=acct:paul. kinlan@gmail.com <?xml version='1.0'?> <XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'> <Subject>acct:paul.kinlan@gmail.com</Subject> <Alias>http://www.google.com/profiles/paul.kinlan</Alias> <Link rel='http://portablecontacts.net/spec/1.0' href='http://www-opensocial.googleusercontent.com/api/people/'/> <Link rel='http://webfinger.net/rel/profile-page' href='http://www.google.com/profiles/paul.kinlan' type='text/html'/> <Link rel='http://microformats.org/profile/hcard' href='http://www.google.com/profiles/paul.kinlan' type='text/html'/> <Link rel='http://gmpg.org/xfn/11' href='http://www.google.com/profiles/paul.kinlan' type='text/html'/> <Link rel='http://specs.openid.net/auth/2.0/provider' href='http://www.google.com/profiles/paul.kinlan'/> <Link rel='describedby' href='http://www.google.com/profiles/paul.kinlan' type='text/html'/> <Link rel='http://schemas.google.com/g/2010#updates-from' href='http://buzz.googleapis. com/feeds/116059998563577101552/public/posted' type='application/atom+xml'/> </XRD>
  • 14. Notification of Updates Use Pubsubhubbub. It Rocks. NO MORE POLLING. The hub pings you when there is an update. The hub is defined in the user's feed. <link rel="hub" href="......"> POST http://pubsubhubbub.appspot.com/?hub.callback=http%3A//statusmate. appspot.com/callback &hub.topic=http%3A//buzz.googleapis.com/feeds/11223344/public/posted &hub.verify=sync &hub.mode=subscribe
  • 15. Getting your stuff into Buzz ATOM and RSS are your Friends Media RSS Activity Streams PubSubHubbub - Appears instantly in Buzz. We use XFN and Google profiles for a mutal authentication. If you have access to the feed and profile, then you must own both. How? Add a link to the feed in your profile Add a rel="me" in your feed <link rel="me" href="http://google. com/profiles/paul.kinlan"/> We do the rest.
  • 16. Forward the future Read/Write API AtomPub - For writing support OAuth - delegated authorization Salmon - Federated Comments and Activities
  • 17. Ideas Wrap your twitter feeds. Add MediaRSS to the ATOM feed Wrap your favorites feed Integrate your service
  • 18. Links Help shape the API: http://groups.google.com/group/google-buzz-api Report Bugs: http://code.google.com/p/google-buzz-api/issues/list Buzz API: http://code.google.com/apis/buzz/ Open ID: http://openid.net/ WebFinger: http://code.google.com/p/webfinger/ Profiles: http://www.google.com/profiles Pubsubhubbhub: http://code.google.com/p/pubsubhubbub/
  • 19. Thank You!