jsonista.jcs

RFC 8785 JSON Canonicalization Scheme (JCS) extension for metosin/jsonista.

deps.edn

dev.dotfox/jsonista.jcs {:mvn/version "1.0.9"}

or as a git dependency

io.github.DotFox/jsonista.jcs {:git/tag "v1.0.9" :git/sha "2ed4c9d"}

and prep java sources

clj -X:deps prep

project.clj

[dev.dotfox/jsonista.jcs "1.0.9"]

TLDR;

Create custom object-mapper

(require '[jsonista.core :as json] '[jsonista.jcs :as jcs])

;; jcs/object-mapper expects the same arguments as json/object-mapper
(def jcs-object-mapper (jcs/object-mapper))

;; with custom object-mapper the result will be brought in line with the RFC 8785
(json/write-value-as-string obj jcs-object-mapper)

Differences in compare with default jsonista.core/object-mapper

1. The numbers are serialised according to Section 7.1.12.1 of ECMA-262
2. Object keys are sorted recursively using serialized form. Custom :encode-key-fn will be used if provided.
3. Unicode code points in strings serialized to lowercase.