implementations.md

CertLogic implementations

Several implementations of CertLogic and compatible implementations of JsonLogic exist - links to these are given below. Note that the compatibility of JsonLogic implementations does not necessarily include the custom operations, such as plusTime, and extractFromUVCI. These custom operations:

• Are defined in the CertLogic specification.
• Can be implemented by mimicking any of the existing implementations in
  • Java-/TypeScript,
  • Kotlin,
  • or Dart.
• Can be tested using the test suite, and by mimicking the various unit tests available, such as:
  • in Java-/TypeScript
  • in Kotlin
  • in Dart.

JavaScript (TypeScript)

certlogic-js: a TypeScript implementation, usable from JavaScript as well, and available as NPM package. It can be installed by running

$ npm certlogic-js

and adding the following import to TS/ES6+ source

import { evaluate } from "certlogic-js"

or the equivalent ES6- statement

const { evaluate } = require("certlogic-js")

JVM

• certlogic-kotlin: a greenfield Kotlin implementation, Releases are available on GitHub, and also as GitHub Maven Package. Note that you have to modify your ~/.m2/settings.xml to be able to retrieve a GitHub Package: see this page.

• json-logic-java: Java implementation of JsonLogic which has been verified to comply with the CertLogic test suite. Releases are available on GitHub, and also on Maven Central. To add the custom operations necessary for compliance with CertLogic: see this repo by Ilie Circiumaru.

Swift

• json-logic-swift: a Swift implementation of JsonLogic, conforming to the CertLogic spec. Releases are available on GitHub.

Go

• json-logic-go: an implementation of JsonLogic in Go, contributed through the hard work of Ilie Circiumaru.

Dart

• certlogic-dart: a Dart implementation of CertLogic. Published at: https://pub.dev/packages/certlogic_dart