This document provides an overview of the Noir web framework for Clojure. It discusses how Noir uses a functional programming approach, encourages modularity, and is built on other components like Hiccup, Ring, and Compojure. It provides examples of how to set up a basic Noir project using Leiningen and demonstrates creating HTML representations and basic todo list applications in Noir.

1. The
really frakking
simple guide
to (Noir)
- or how I learned to
stop worrying about
MVC and love the
(function)

2. @jr0cket
john.jr0cket.co.uk
clojure.jr0cket.co.uk

3. Clojure.jr0cket.co.uk

4. Why use Noir
Functional programming web framework
Simplicity over design patters
Micro framework built on others

5. Functional for the web
Big blog of stuff in > Big blob of stuff out
Encourages modularising responsibilities
Good at processing data in parallel

7. What does Noir look
like?

8. Noir uses other components

9. Hiccup [hiccup "0.3.7"]
Representing HTML in Clojure. It uses
● vectors to represent tags
● maps to represent a tag's attributes
user=> (use 'hiccup.core)
user=> (html [:div#foo.bar.baz "bang"])
"<div id="foo" class="bar baz">bang</div>"
user=> (html [:span {:class "foo"} "bar"])
"<span class="foo">bar</span>" user=> (html [:ul
(for [x (range 1 4)]
[:li x])])
"<ul><li>1</li><li>2</li><li>3</li></ul>"

10. Ring
Modular web applications
applications, web servers, and web frameworks.

11. Compojure
Maps requests to handlers
(defpage "/" [ ] "hello")

12. Getting Started

13. Download
webnoir.org
Requirements
Or via build tool
Java 5
Leiningen
Java 6 (better performance)
Cake

15. Leiningen Build tool
Get Leiningen (Line – ing – en):
github.com/technomancy/leiningen
lein
Tesing Leiningen
lein repl

16. Leiningen REPL in action

17. Use the Leiningen Noir plugin you
must
lein plugin install lein-noir 1.2.1
For easy project creation, use
lein noir plugin you must

18. My first Noir project

19. Create a new Noir project
lein noir new my-website
Choose wisely your website name, you must!

20. Running your website
lein run
lein repl
(server/start 3000)
Modify your server dynamically you should,
Using lein repl you must!
Choose your port wisely young jedi

21. Noir project definition
project.clj

22. Noir server definition
server.clj

23. Noir server definition
View/welcome.clj

24. Noir View common definitions
view/common.clj

25. Simple todo list

26. Simple todo list - Output

27. Using forms

28. A bigger example

29. All hail ...
An interactive shell for clojure
Experiment with clojure in a safe and
easy way

32. Try Clojure - project.clj

33. Try Clojure - core.clj

34. Try Clojure lists - core.clj

35. Try Clojure text – core.clj

36. Try Clojure – CSS & JS – core.clj

37. Getting Data

39. Where to find out
more

40. Where to find out more...
http://webnoir.org/
https://github.com/ibdknox/noir

41. Where to find out more...
Extreme Startup
Workshop
Use Noir to build your product
and compete against others

42. Thank you
No (parentheses) were harmed
in the making of this
presentation....
@jr0cket
john.jr0cket.co.uk
clojure.jr0cket.co.uk