Circe provides compile-time derived codecs for en-decode json into case classes. A simple example looks like this

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

case class User(id: Long, name: String)

val user = User(1, "John Doe")

// {"id":1,"name":"John Doe"}
val json = user.asJson.noSpaces

// Right(User(1L, "John Doe"))
val res: Either[Error, User] = decode[User](json)