guardrail is a code generation tool, capable of reading from OpenAPI/Swagger specification files and generating both Scala and Java source code, targeting various libraries and frameworks listed here:

• Scala: akka-http and http4s, both backed by circe, as well as dropwizard backed by jackson
• Java: dropwizard and spring-mvc, both backed by jackson

Plugins	versions	docs
guardrail-dev/sbt-guardrail		docs
guardrail-dev/guardrail-maven-plugin		docs
guardrail-dev/guardrail-gradle-plugin	guardrail-gradle-plugin	Plugin Portal
CLI support	Latest	cs install guardrail, docs

Check out the docs!

Compatible library versions are listed in COMPATIBILITY.md

guardrail is modularized, using sbt-version-policy to ensure binary compatibility between dependent modules.

The dependency chain and versions of published modules are listed below for reference:

module	version	depends on
guardrail-core
guardrail-java-support		core
guardrail-java-async-http		java-support
guardrail-java-dropwizard		java-support, java-async-http
guardrail-java-spring-mvc		java-support
guardrail-scala-support		core
guardrail-scala-akka-http		scala-support
guardrail-scala-dropwizard		scala-support
guardrail-scala-http4s		scala-support
guardrail		core, java-support, java-dropwizard, java-spring-mvc, java-async-http, scala-support, scala-akka-http, scala-dropwizard, scala-http4s
guardrail-cli		guardrail

CONTRIBUTING.md provides an overview of how the project is structured, expectations, and information around writing new integration tests. The issue tracker also has tags for help wanted and good first issue.

• Avast
• Twilio

We used to have a list of contributors here, but github's Contributors page is much more accurate. Thanks to those who contributed before the project was open sourced!