JSON validation using Scala - json

Question

I am trying to write a scala application for JSON validation. I have a Animals.scala class that defines the following:
case class Animals (id: Int, type: String, targets: String)
object Animals {
implicit val reads: Reads[Animals] = (
(JsPath \ "id").read[Int] and
(JsPath \ "type").read[String] and
(JsPath \ "targets").read[String])(Animals.apply _)
}
I have Application.scala where I have tried to validate an incoming JSON against the case class.
object Application extends Controller {
// action for JSON validation
def validateRequest = Action { implicit request =>
// this will fail if the request body is not a valid json value
val bodyAsJson = request.body.asJson.get
bodyAsJson.validate[Animals] match {
case success: JsSuccess[Animals] => {
val id = success.get.id
Ok("Validation passed! id is "+ id)
}
case JsError(error) => BadRequest("Validation failed!")
}
}
}
And finally here's my JSON input:
{
"id" : 1,
"type" : "domestic",
"targets": {
"AND": [
{
"breed": ["greyhound", "dalmatian"]
},
{
"NOT": {
"color": ["amber", "pale_amber", "black"]
}
},
{
"zipcode": ["90210", "90211"]
}
]
}
}
And I get the following error:
JsError(List((/targets,List(ValidationError(error.expected.jsarray,WrappedArray())))))
I do realize that the error is thrown because targets field is not as simple as a String compared to my JSON. How do I wrap it so that the validation passes? Should I do List[List[String]] or something along those lines?

Answer 1

If you don't care about the structure of targets read it as a JsObject. It will parse any internal structure that way.