so_22953741

repl.txt

[info] Starting scala interpreter...
[info]
Welcome to Scala version 2.10.4 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0).
Type in expressions to have them evaluated.
Type :help for more information.

scala> import spray.json._
import spray.json._

scala> import DefaultJsonProtocol._
import DefaultJsonProtocol._

scala> :paste
// Entering paste mode (ctrl-D to finish)

object Foo extends DefaultJsonProtocol {
  implicit val fooFormat = jsonFormat1(Foo.apply)
}
case class Foo(bar: String)

// Exiting paste mode, now interpreting.

defined module Foo
defined class Foo

scala> Foo("baz").toJson
res0: spray.json.JsValue = {"bar":"baz"}

ws.scala

import spray.json._
import DefaultJsonProtocol._

object Foo extends DefaultJsonProtocol {
  implicit val fooFormat = jsonFormat1(Foo.apply)
}
case class Foo(bar: String)

Foo("baz").toJson