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Rack
- 1. Rack Shaokun Wu shaokun@kudelabs.com
- 2. • web framework • frameworkless web application
- 3. • web servers WEBrick, Mongrel, Thin, Passenger... • web server handlers
- 4. ??? •n frameworks •m web servers • web server handlers
- 5. n*m
- 6. n * m => n + m
- 8. Request • GET / HTTP/1.1 User-Agent: curl/7.12.2 ... Host: ruby-lang.org Pragma: no-cache Accept: */*
- 9. Response • HTTP/1.1 302 Found • Date: Sat, 27 Oct 2007 10:07:53 GMT Server: Apache/2.0.54 (Debian GNU/Linux) mod_ssl/2.0.54 OpenSSL/0.9.7e Location: http://www.ruby-lang.org/ Content-Length: 209 Content-Type: text/html; charset=iso-8859-1 • <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>302 Found</title> </head><body> <h1>Found</h1> <p>The document has moved <a href="http://www.ruby-lang.org/">here</ a>.</p> </body></html>
- 10. Response • Status Code to_i • Headers each yields key-value pairs • Body each yields strings
- 12. Rack • • HTTP Ruby API
- 13. Hello Rack! • lambda { |env| [200, # Status Code {"Content-Type"=>"text/plain"}, # Headers ["Hello, world!"]] # Body }
- 14. Rack Handlers • CGI • EventedMongrel • FastCGI • LSWS • Mongrel • SCGI • SwiftipliedMongrel • Thin • WEBrick
- 15. • Rack::Cascade • Rack::CommonLogger • Rack::Lint • Rack::Recursive • Rack::Reloader • Rack::ShowException • Rack::ShowStatus • Rack::Static • Rack::URLMap • http://coderack.org/middlewares
- 16. Let’s code!
- 17. Hello Rack!
- 18. Response Timer
- 19. .NET or J2EE in one second
- 20. No IE 6 Please!!!!!!!!!!