Language

Scala

Guardrail ships a modular Scala core with sbt and Maven integration. The same core runs as a CLI. Modules include guardrail-scala-support, guardrail-scala-akka-http, guardrail-scala-http4s, and guardrail-scala-dropwizard.

Example sbt configuration

In project/guardrail.sbt:

addSbtPlugin("dev.guardrail" % "sbt-guardrail" % "<version>")
libraryDependencies += "dev.guardrail" %% "guardrail-scala-http4s" % "<version>"

In build.sbt:

Compile / guardrailTasks := List(
  ScalaClient(file("github.yaml"), pkg = "com.example.clients.github", framework = "http4s"),
)

Scala < 2.13 needs -Ypartial-unification. Scala < 2.12 additionally needs -Xexperimental.

Frameworks

• Akka HTTP
• http4s
• Dropwizard

Sample repositories

• guardrail-sample-sbt-akkahttp
• guardrail-sample-sbt-http4s
• guardrail-sample-sbt-http4s-zio

Pick library versions from the compatibility matrix. More plugin options live on the plugins page.