🐢 http4s-karapace

Provides an http4s client for the Karapace schema registry.

Usage

You can add the following line to build.sbt to use the library.

libraryDependencies += "com.magine" %% "http4s-karapace" % http4sKarapaceVersion

Make sure to replace http4sKarapaceVersion with a release version.
Replace %% with %%% if you are using Scala.js or Scala Native.

Quick Example

Create a SchemaRegistryClient and use it to interact with a schema registry.

import cats.effect.IO
import cats.effect.IOApp
import cats.syntax.all._
import com.magine.http4s.karapace.SchemaRegistryClient
import com.magine.http4s.karapace.SubjectName
import org.http4s.ember.client.EmberClientBuilder
import org.http4s.syntax.all._

object Main extends IOApp.Simple {
  override def run: IO[Unit] =
    EmberClientBuilder.default[IO].build.use { client =>
      for {
        schemaRegistryClient <- SchemaRegistryClient
          .builder(client, uri"http://localhost:8081")
          .withBasicAuth("username", "password")
          .build
        name = SubjectName("topic-value")
        subject <- schemaRegistryClient.getSubject(name)
        _ <- IO.println(subject)
      } yield ()
    }
}

License

Copyright 2025 Magine Pro
Copyright 2026 Viktor Rudebeck

Licensed under the Apache License, Version 2.0.
Created by Viktor Rudebeck at Magine Pro and independently maintained since 2026.