Validate Data and Instrument Contracts with clojure.spec
Learn how to use clojure.spec to validate data shapes and instrument function contracts, with a worked example, runtime limits, and common mistakes to avoid.
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Learn how to use clojure.spec to validate data shapes and instrument function contracts, with a worked example, runtime limits, and common mistakes to avoid.
Stop debugging runtime NilPointerExceptions caused by malformed API payloads. Learn how to use Clojure Spec to validate data shapes and generate edge-case tests automatically.
An architecture note on using clojure.spec.alpha to validate untrusted HTTP and queue payloads at the perimeter: minimal design, operational checks, failure modes, and when to choose Malli instead.
Stop chasing NullPointerExceptions through your stack trace. Learn how to use Clojure Spec to validate data at boundaries and instrument functions during development.