caseClassToMap.scala

import shapeless._, syntax.std.product._, spray.json.{JsNumber, JsString}

case class Person(name: String, age: Int)

val p = Person("Pepe", 54)

p.toMap[Symbol, Any] // res0: Map[Symbol,Any] = Map('age -> 54, 'name -> Pepe)

p.toMap[Symbol, Any].map { 
  case (s, i: Int) => s.toString -> JsNumber(i)
  case (s, x: Any) => s.toString -> JsString(x.toString) 
} // res1: Map[String,Product with Serializable with spray.json.JsValue] = Map('age -> 54, 'name -> "Pepe")