Jsoniter Scala

structible-jsoniter-scala is available for Scala 2.12 and 2.13.

It provides derivations for JsonCodec instances.

Make sure to familiarize yourself with creating structible instances before looking at the examples below.

Dependency

sbt

libraryDependencies += "com.github.cerst" % "structible-jsoniter-scala" % "0.6.4"

Maven

<dependency>
  <groupId>com.github.cerst</groupId>
  <artifactId>structible-jsoniter-scala</artifactId>
  <version>0.6.4</version>
</dependency>

Gradle

dependencies {
  compile group: 'com.github.cerst', name: 'structible-jsoniter-scala', version: '0.6.4'
}

Example

import com.github.cerst.structible.core.DefaultConstraints._
import com.github.cerst.structible.core._
import com.github.cerst.structible.jsoniterscala.ops._
import com.github.plokhotnyuk.jsoniter_scala.core._
import com.github.plokhotnyuk.jsoniter_scala.macros._

object JsonCodecExample {

  final class UserId private (val value: Long) extends AnyVal

  object UserId {

    private val structible: Structible[Long, UserId] = Structible.structible(new UserId(_), _.value, c >= 0)

    // jsoniter-scala uses a null value internally which you have to provide explicitly when using AnyVal due to a compiler bug:
    // https://github.com/scala/bug/issues/8097
    // otherwise, the created codec throws a NullPointerException at runtime
    implicit val jsonCodecForUserId: JsonCodec[UserId] = structible.toJsonCodec(null.asInstanceOf[UserId])
  }

  final case class User(userId: UserId)

  object User {
    implicit val jsonCodecForPerson: JsonValueCodec[User] = JsonCodecMaker.make(CodecMakerConfig)
  }

}