Brooklyn - Small web tool

Brooklyn is a small (~300 LOC) rack-based application builder. Was made as proof of concept that fast and small code can still work.

Presented as RubyConf Argentina Lighting talk.

Transcript

1. Brooklyn, NY
   Small Ruby web tool
   github.com/luislavena/brooklyn
   

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2. Luis Lavena
   Work: area17.com
   Twitter: @luislavena
   GitHub: luislavena
   

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3. Problem
   Create minimal service (just JSON)
   In Ruby
   Rack compatible
   

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4. Drama
   Need for speed (fewer allocs/req)
   Less Ruby magic
   No backward compatibility
   Small codebase
   No code is faster than no code
   

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5. Goal
   Understand what is going on
   

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6. Reference: Rack
   class HelloWorld
   def call(env)
   [
   200,
   {"Content-Type" => "text/html"},
   ["Hello World!"]
   ]
   end
   end
   run HelloWorld.new
   

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7. Minimal DSL (Sinatra)
   require "sinatra/base"
   class HelloWorld < Sinatra::Base
   get "/" do
   "Hello World!"
   end
   end
   run HelloWorld
   

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8. Brooklyn
   require "brooklyn"
   class HelloWorld < Brooklyn::App
   get "/" do
   "Hello World!"
   end
   end
   run HelloWorld.new
   

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9. Codebase
   Sinatra: 2035 lines (1738 sloc, 1 file)
   Brooklyn: 217 lines (165 sloc, 7 files)
   

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10. Performance
    Rack: 7637 req/sec (1.0x)
    Sinatra: 2712 req/sec (0.35x)
    Brooklyn: 5827 req/sec (0.76x)
    github.com/luislavena/bench-micro
    

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11. Again
    Rack-powered (use middlewares)
    No code is faster than no code
    Less ruby magic
    Code you can understand (in 10 minutes)
    

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12. Thanks!
    github.com/luislavena/brooklyn
    

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