Web applications with Ruby (not Rails)
summary
Builds a working web app from scratch using Ruby and Rack with a hand-rolled router (simple case dispatch), controller superclass, Haml views and layouts, and model options: ActiveRecord, Sequel, or raw PG. Shows rendering via Haml with binding to expose controller instance variables, and measures ~700 req/s (1.4 ms) versus Rails ~400 req/s (2.4 ms). Omits sessions, cookies, logging, caching and other infra so it runs and is instructive but not production complete.
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chapters (5)
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