Living in the Cloud: Hosting Data & Apps Using the Google Infrastructure
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In the modern web, the user rules. Nearly every successful web app has to worry about scaling to an exponentially growing user base and giving those users multiple ways of interacting with their data. Pamela Fox, Maps API Support Engineer & Developer advocate, provides an overview of two technologies - Google App Engine and the Google Data APIs - that aim to make web development and data portability easier.
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Living in the Cloud: Hosting Data & Apps Using the Google Infrastructure
- 3. The Cloud!
- 5. Before the Cloud: Web Apps
- 6. After the Cloud: Web Apps
- 10. Old Architecture
- 11. Old Architecture
- 14. App Engine Architecture code data
- 16. App Engine Components code data
- 17. Python
- 18. Data Store
- 19. Data Store db.GqlQuery("SELECT * FROM Shout " "WHERE who >= 'b ' AND who < ' c ' " "ORDER BY when DESC").fetch(100) query = Shout.all() query.order('-date') query.filter('who >=', 'b') query.filter('who <', ‘c') shouts = query.fetch(100)
- 20. Memcache
- 23. Before the Cloud: User Apps
- 24. After the Cloud: User Apps
- 26. Solution: Google data APIs
- 29. Remote Procedure Calls fooInstance->addNumbers(2, 3); <?xml version="1.0"?><methodCall> <methodName>Foo.addNumbers</methodName> <params> <param> <value><int>2</int></value> <value><int>3</int></value> </param> </params></methodCall> fooInstance.addNumbers(2, 3); PHP XML (Network) C++
- 30. REST [Fielding 2000] Re presentational S tate T ransfer ( )
- 34. RSS/ATOM Feed { Entries Example RSS feed.
- 35. ATOMPub Feed { Entries GET POST PUT DELETE
- 36. Google data APIs Protocol Feed Query { Entries GET POST PUT DELETE
- 37. The Google Data Protocol REST Google Data Protocol RSS 2.0 Architecture Syndication Updates AtomPub Atom
- 38. The Google Data Protocol RSS 2.0 Atom(Pub) Google Data Syndication Format ✓ ✓ ✓ Queries ✓ Updates ✓ ✓ Optimistic Concurrency ✓ Authentication ✓
- 39. The Google Data Protocol Over 15 APIs, 1 Protocol Many Uses
- 56. Questions? Pamela Fox [email_address] @pamelafox More Info http://code.google.com ↶