A Clojure Carol: Three Clojure Web Development A-Ha Moments
summary
Uses an in-editor REPL to evaluate expressions live which speeds development and tightens the feedback loop, builds a production writing app backed by Postgres that universities actually use, models domain data as maps created by simple constructor functions validated with clojure.spec (or schema/Malli) while relying on the ring request map for pragmatic flexibility, and avoids duplicated handler logic by splitting database access into layers inspired by the Big Ball of Mud paper so projects with 20+ handlers stay maintainable.
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