functional web development with git(hub), heroku and clojure

Functional web development with Git(Hub),

Heroku and Clojure

Jacek Laskowski

Poznań, Polska, 13.05.2013

@JacekLaskowskiblog.japila.pl

Don’t forget a picture

Don’t forget a picture

Smile, please :-)

The Goal

Share a platform to develop your skills and have your work

available to the public

PLAYGROUND• GitHub

• Collaboration, review, and code management Platform

• Heroku• Cloud Application Platform

• Clojure• Functional Programming Language

Learnin’ andhaVin’ FUN!

Learnin’ andhaVin’ FUN!

Always!

Learnin’ andhaVin’ FUN!

Always!http://www.flickr.com/photos/lauraprevost83/

GitHub

My GitHub

My GitHub

My GitHub

My GitHub

My GitHub

My GitHub

How to GitHub

GitHub :: Watched Repositories

GitHub :: Notifications

GitHub :: Project page

GitHub :: Project Graphs

GitHub :: Project Contributions

Heroku

Heroku Dashboard

Heroku :: Librarian-Clojure

Heroku :: Project Activity

• Functional Programming Language• Pure functions...wherever

possible• Immutable data structures• Expressions

Clojure

Why Clojure (1)

• “Learn a new language every year” @PragProg

Why Clojure (1)

• “Learn a new language every year” @PragProg

• New (idioms)

Why Clojure (1)

• “Learn a new language every year” @PragProg

• New (idioms)• (Perhaps) cool

Why Clojure (1)

• “Learn a new language every year” @PragProg

• New (idioms)• (Perhaps) cool• Fresh (undoubtedly)

Why Clojure (1)

• “Learn a new language every year” @PragProg

• New (idioms)• (Perhaps) cool• Fresh (undoubtedly)• Java interop available

Why Clojure (1)

• “Learn a new language every year” @PragProg

• New (idioms)• (Perhaps) cool• Fresh (undoubtedly)• Java interop available• More?!

Why Clojure (1)

Why Clojure (2)

http://www.flickr.com/photos/karmaowl/

Why Clojure (2)

http://www.flickr.com/photos/karmaowl/

Why Clojure (2)

http://www.flickr.com/photos/karmaowl/

Functional web development

• Request = a map

Functional web development

• Request = a map• Request processing = a

function manipulating the map

Functional web development

“Functional” request

“Functional” request

http://localhost:8090/

“Functional” response

“Functional” response

“Functional” response

Functional Librarian-Clojure

• Dynamic web applications with Clojure and Ring - part 1http://jaceklaskowski.pl/wiki/Dynamic_web_applications_with_Clojure_and_Ring_-_part_1

• Clojure w aplikacji webowej z Compojure oraz Ring i Hiccuphttp://jaceklaskowski.pl/wiki/Clojure_w_aplikacji_webowej_z_Compojure_oraz_Ring_i_Hiccup

http://jaceklaskowski.pl/wiki

QuestionS?

Jacek Laskowski

Poznań, Polska, 13.05.2013

@JacekLaskowskiblog.japila.pl