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Building RESTful APIs

Design endpoints, validate inputs, and return data while keeping HTTP concerns at the boundary.

Building APIs in Clojure is usually a “pure core / HTTP shell” story: parse and validate request data, call pure domain functions, then serialize the result into a response.

This section focuses on practical API concerns—JSON, validation, error shape, and versioning—without drifting into framework-specific trivia.

In this section

Revised on Saturday, May 23, 2026