1. How do you, like,
split your web site up?
You know what I mean?
A tech talk at Paperless Post
by Alex Payne
November 2012

5. Beginner:
How do you organize the
code for your site?

6. site.php

7. site.php
class Page {}
class Login extends Page {}
...

8. site.php db.php

9. site.php db.php
helpers.php

10. Model View Controller
person.php login.php auth.php

12. Advancing:
How do you break a web
application into multiple
programs? How do they
talk to one another?

13. dat_app

14. dat_app

15. Database
as point of coordination
nightly.rb
dat_app

16. Databasestore
as point of coordination
nightly.rb
dat_app

17. Cache
as point of coordination
dat_app
hourly.rb

18. Message Queues
dat_app
worker1
worker2

19. RPC
via native serialization
chat
DRb dat_app
worker1
search
worker2

20. RPC
via JSON
chat
dat_app
worker1
search
worker2

21. RPC
pro-style
chat
dat_app
worker1
search
worker2

22. «pause»

23. chat
site.php
search

24. WE STILL HAVEN'T
TALKED ABOUT:
‣ Monitoring
‣ Multi-datacenter support
‣ Service discovery
‣ Deployment
‣ Schema migrations
‣ Analytics/data mining
‣ ....

25. 1. Web development isn't
inherently difficult, but it
gets really challenging
really quickly.

26. 2. This is why the future
belongs to PaaS.

27. Thanks!