Parse json array to a case class in scala using playframework with the fields in json not matching the fields in case class

Question

I am trying to parse a simple json array to a case class using scala and play framework. Below is the code

package com.learning.avinash.query

import play.api.libs.json.{JsPath, Json, Reads, Writes, __}
import play.api.libs.functional.syntax._

object ParseJson extends App {

  case class InfoForm(avinash: String, kranti: String, prasanth: String)

  object InfoForm {

    implicit val reads: Reads[InfoForm] = (
      (JsPath \ "username").read[String] ~
        (JsPath \ "id").read[String] ~
        (JsPath \ "full_name").read[String]
      )(InfoForm.apply _)

  }

  val json = """ {
  "data":  [
     {
      "username": "carolinabentocb",
      "id": "363753337",
      "full_name": "Carolina Bento"
    },
     {
      "username": "pereira3044",
      "id": "2141448590",
      "full_name": "Alex"
    }]
}"""

  println(Json.parse(json).as[List[InfoForm]])

}

But i am getting the following exception

Exception in thread "main" play.api.libs.json.JsResultException: JsResultException(errors:List((,List(JsonValidationError(List(error.expected.jsarray),WrappedArray())))))

Followed the below links

Parse JSON Array in Scala

Parse Json array response in scala\Play

Parse Simple Json Array in Play Framework

These link almost helped me

Stepping into JSON Arrays in Play Framework

How to parse json list or array in scala for play framework 2.2

Duelist · Accepted Answer · 2019-12-06 09:48:25Z

3

Finally I could get the result of this. I have done it like this

println((Json.parse(json) \"data" ).as[List[InfoForm]])

This gives me the result

List(InfoForm(carolinabentocb,363753337,Carolina Bento), InfoForm(pereira3044,2141448590,Alex))

edited Dec 6, 2019 at 9:48

Duelist

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answered Dec 5, 2019 at 22:29

Avinash Reddy

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