Presentation from Atmosphere Conference in Poznan, Poland.

1. Functional web
development with Git(Hub),
Heroku and Clojure
Jacek
Laskowski
Poznań, Polska, 13.05.2013
@JacekLaskowski
blog.japila.pl

2. Don’t forget
a picture

3. Don’t forget
a picture
Smile, please :-)

4. The Goal
Share a platform to
develop your skills
and have your work
available to the public

5. PLAYGROUND
• GitHub
• Collaboration, review, and code
management Platform
• Heroku
• Cloud Application Platform
• Clojure
• Functional Programming Language

6. Learnin’
and
haVin’ FUN!

7. Learnin’
and
haVin’ FUN!
Always!

8. Learnin’
and
haVin’ FUN!
Always!
http://www.flickr.com/photos/lauraprevost83/

9. GitHub

10. My GitHub

11. My GitHub

12. My GitHub

13. My GitHub

14. My GitHub

15. My GitHub

16. How to GitHub

17. GitHub :: Watched Repositories

18. GitHub :: Notifications

19. GitHub :: Project page

20. GitHub :: Project Graphs

21. GitHub :: Project Contributions

22. Heroku

23. Heroku Dashboard

24. Heroku :: Librarian-Clojure

25. Heroku :: Project Activity

26. • Functional Programming
Language
• Pure functions...wherever
possible
• Immutable data structures
• Expressions
Clojure

27. Why Clojure (1)

28. • “Learn a new language every
year” @PragProg
Why Clojure (1)

29. • “Learn a new language every
year” @PragProg
• New (idioms)
Why Clojure (1)

30. • “Learn a new language every
year” @PragProg
• New (idioms)
• (Perhaps) cool
Why Clojure (1)

31. • “Learn a new language every
year” @PragProg
• New (idioms)
• (Perhaps) cool
• Fresh (undoubtedly)
Why Clojure (1)

32. • “Learn a new language every
year” @PragProg
• New (idioms)
• (Perhaps) cool
• Fresh (undoubtedly)
• Java interop available
Why Clojure (1)

33. • “Learn a new language every
year” @PragProg
• New (idioms)
• (Perhaps) cool
• Fresh (undoubtedly)
• Java interop available
• More?!
Why Clojure (1)

34. Why Clojure (2)
http://www.flickr.com/photos/karmaowl/

35. Why Clojure (2)
http://www.flickr.com/photos/karmaowl/

36. Why Clojure (2)
http://www.flickr.com/photos/karmaowl/

37. Functional web development

38. • Request = a map
Functional web development

39. • Request = a map
• Request processing = a
function manipulating the map
Functional web development

40. “Functional” request

41. “Functional” request
http://localhost:8090/

42. “Functional” response

43. “Functional” response

44. “Functional” response

45. Functional Librarian-Clojure

46. • Dynamic web applications with
Clojure and Ring - part 1
http://jaceklaskowski.pl/wiki/
Dynamic_web_applications_with_Clojure_and_Ring_-_part_1
• Clojure w aplikacji webowej z
Compojure oraz Ring i Hiccup
http://jaceklaskowski.pl/wiki/
Clojure_w_aplikacji_webowej_z_Compojure_oraz_Ring_i_Hiccup
http://jaceklaskowski.pl/wiki

47. QuestionS?
Jacek
Laskowski
Poznań, Polska, 13.05.2013
@JacekLaskowski
blog.japila.pl