Questions tagged [circe]

Circe is a JSON library for Scala powered by Cats.

A simple usage of this library is:

import io.circe._, io.circe.generic.auto._, io.circe.parser._, io.circe.syntax._

sealed trait Foo
case class Bar(xs: Vector[String]) extends Foo
case class Qux(i: Int, d: Option[Double]) extends Foo

val foo: Foo = Qux(13, Some(14.0))

val json = foo.asJson.noSpaces
println(json) // prints: {"Qux":{"i":13,"d":14}}

val decodedFoo = decode[Foo](json)
println(decodedFoo) // prints: Right(Qux(13,Some(14)))

For reading about it please refer:

• Official documentation: https://circe.github.io/circe/
• Scaladocs: https://circe.github.io/circe/api/
• Source code: https://github.com/circe/circe
• Maven central packages: https://maven-badges.herokuapp.com/maven-central/io.circe/circe-core_2.13
• Gitter: https://gitter.im/circe/circe