Play2 on Scala : JSON serialization/deserialization - json

Question

I am new Play/Scala and started porting a Spring Boot RestAPI to Play2 as a learning exercise.
In Java/SpringRest ,its simply a matter of annotating POJOs and the JSon library handle the serialize/deserialization automatically.
According to every Play2/Scala tutorial I read, I have to write a Writer/Reader for each model/case class as follows
implicit val writesItem = Writes[ClusterStatus] {
case ClusterStatus(gpuFreeMemory, gpuTotalMemory, labelsLoaded, status) =>
Json.obj("gpuFreeMemory" -> gpuFreeMemory,
"gpuTotalMemory" -> gpuTotalMemory,
"labelsLoaded" -> labelsLoaded,
"status" -> status)
}
//HTTP method
def status() = Action { request =>
val status: ClusterStatus = clusterService.status()
Ok(Json.toJson(status))
}
This means If have a large domain model/response model, I have to write a lot of Writers/Readers for serialize/deserialization?
Is there any simpler way to handle this?

Answer 1

You can give a try to "com.typesafe.play" %% "play-json" % "2.7.2". For using that you just need to do the below steps:
1) Add below dependencies(Use version according to your project):
"com.typesafe.play" %% "play-json" % "2.7.2",
"net.liftweb" % "lift-json_2.11" % "2.6.2"
2) Define formats:
implicit val formats = DefaultFormats
implicit val yourCaseClassFormat= Json.format[YourCaseClass]
This format defines both read and writes for your case class.