The document discusses leveraging Google App Engine and Google Web Toolkit (GWT) for building scalable applications, emphasizing that developers can run apps on Google's infrastructure. It highlights the importance of scalability in app development and offers insights into the services and features provided by Google App Engine. GWT aims to enhance developer productivity while ensuring a consistent web experience across various modern browsers.

1. Using App Engine and Google Web
Toolkit to power your start-ups
February 27th, 2010
St. Louis Innovation Camp
Jason Cooper
Developer Programs Engineer
jasonacooper@google.com

2. Two* classes of apps
(* intentionally broad)

3. Apps that don't need a back-end...

4. Apps that don't need a back-end...

5. And apps that do...
All interesting applications

8. ?

9. ?
http://www.flickr.com/photos/befuddledsenses/
CC BY 2.0

10. X
http://www.flickr.com/photos/befuddledsenses/
CC BY 2.0

11. http://www.flickr.com/photos/neospire/
CC BY 2.0

13. Don't reinvent the wheel:
leverage others' strengths

14. Enter App Engine...

15. Google App Engine pitch #1
"Run your apps on Google's
scalable infrastructure"

16. Google App Engine pitch #2
"Run your apps in Google's
managed cloud"

17. Google App Engine pitch #3
"Get your apps running reliably
and ready to scale in
30 seconds"

18. Reliability:
Building web applications is hard

19. Scalability:
With just a few users...
...tools, platform and design don't matter too much

20. Scalability:
With lots and lots of users...
...you must design for scalability

21. WhiteHouse.gov/openforquestions

23. Scale dynamically and automatically
App App’s
Use Engine Runtime
r Frontend

24. Scale dynamically and automatically
App App’s
Use Engine Runtime
r Frontend

25. Scale dynamically and automatically
Use
Use r
r
App App’s
Use Engine Runtime
r Frontend
Use
r Use
r

26. Scale dynamically and automatically
Use
App’s
Use r
Runtime
r
App App’s
Use Engine Runtime
r Frontend
App’s
Runtime
Use
r Use
r

27. Multiple versions
http://fredsa.appspot.com/
Version 1.1
App
Engine Datastore
Use
r Frontend
Version 2.1
http://2.1.fredsa.appspot.com/

28. Runtimes
* and other JVM-
compatible languages

29. Services and APIs
Datastore
URL Fetch
Memcache
Mail
XMPP
Images
Google Accounts
Background tasks

30. Ensuring portability

31. Administrative Console

32. Google Plugin for Eclipse

33. Google Apps + your apps
Your custom
Our Google Apps applications
Google's scalable serving architecture

34. How much?

35. Always free to get started
Free Quota
~5M pageviews/month
6.5 CPU hrs/day
2,000 recipients emailed
1 GB/day bandwidth

36. Purchase Additional Resources

37. App Engine in three bullets
Deploy your apps to a platform that is
Easy to use
Easy to scale
Easy to manage

38. Google Web Toolkit

39. Google Web Toolkit
Mission statement
"GWT's mission is to radically improve
the web experience for users by
enabling developers to use existing
Java tools to build no-compromise
AJAX for any modern browser."

40. Google Web Toolkit
GWT is all about
Productivity for developers
Language, IDEs, tools, libraries
People, ecosystem
Performance
'Perfect' caching
Whole program optimization
Better than practical hand written code

41. Google Web Toolkit
IE
Firefox
Safari
Chrome
Opera

42. Complete Java development stack
+