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The morphir[3.3.4].sdk.json.jvm.artifactName package

There is a newer version: 0.21.0

package morphir.sdk.result

import io.circe.{ Decoder, HCursor, Encoder, Json }
import morphir.sdk.Result
import morphir.sdk.Result.{ Err, Ok }

object Codec {
  implicit def encodeResult[E, A](implicit encodeE: Encoder[E], encodeA: Encoder[A]): Encoder[Result[E, A]] =
    (result: Result[E, A]) =>
      result match {
        case Ok(value) =>
          Json.arr(
            Json.fromString("Ok"),
            encodeA(value)
          )
        case Err(error) =>
          Json.arr(
            Json.fromString("Err"),
            encodeE(error)
          )
      }

  implicit def decodeResult[E, A](implicit decodeE: Decoder[E], decodeA: Decoder[A]): Decoder[Result[E, A]] =
    (c: HCursor) =>
      c.downN(0).as(decodeE).flatMap { tag =>
        tag match {
          case "Ok" =>
            for {
              a <- c.downN(1).as(decodeA)
            } yield Ok(a)
          case "Err" =>
            for {
              e <- c.downN(1).as(decodeE)
            } yield Err(e)
        }
      }
}