ZIO learning - learning&testing zio-schemas features / published by https://github.com/dacr/code-examples-manager #735e9391-0449-4f38-9d67-f4f86105a395/5ef3dbb8b68acc471edd984481dadfd3a3dc9403

zio-learning-schema-caseclass.sc

// summary : ZIO learning - learning&testing zio-schemas features
// keywords : scala, zio, learning, schema, pure-functional, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : 735e9391-0449-4f38-9d67-f4f86105a395
// created-on : 2022-11-25T15:46:03+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "dev.zio::zio:2.0.13"
//> using dep "dev.zio::zio-schema:0.4.11"
//> using dep "dev.zio::zio-schema-derivation:0.4.11"
//> using dep "dev.zio::zio-schema-protobuf:0.4.11"
//> using dep "dev.zio::zio-schema-json:0.4.11"
// ---------------------

import zio.*
import zio.ZIO.*
import zio.schema.{DeriveSchema, Schema}
import zio.schema.codec.JsonCodec.*
import zio.schema.syntax.*
//import zio.prelude.*
import java.time.Instant
import java.nio.charset.Charset

case class Address(town: String, country: String, planet: Option[String])
case class Person(name: String, age: Int, birthDate: Instant, addresses: List[Address])

object Person {
  given schema: Schema[Person] = DeriveSchema.gen
}

object Encapsulated extends ZIOAppDefault {
  val json =
    """{
      |  "name":"joe",
      |  "age":42,
      |  "birthDate":"2021-04-09T17:19:17.000Z",
      |  "addresses":[ {"town":"london","country":"uk"} ]
      |}""".stripMargin

  def run =
    for {
      _      <- logInfo(s"experimenting...")
      decoder = jsonDecoder[Person](Person.schema)
      person <- from(decoder.decodeJson(json))
      _      <- Console.printLine(person.toString)
    } yield ()
}

Encapsulated.main(Array.empty)