WARNING: This page is a guide for 1.x series. See here instead to learn about the latest
Working with JSON
Easy-to-use json4s wrapper
SkinnyController provides the following useful methods from JSONStringOps trait by default.
- def toJSON(v: Any): JValue
- def toJSONString(v: Any, underscoreKeys: Boolean = true): String
- def toPrettyJSONString(v: Any, underscoreKeys: Boolean = true): String
- def fromJSONString[A](json: String)(implicit mf: Manifest[A]): Option[A]
json/src/main/scala/skinny/util/JSONStringOps.scala
The following methods come from JSONFeature trait.
- def responseAsJSON(entity: Any, charset: Option[String] = Some(“utf-8”), prettify: Boolean = false): String
framework/src/main/scala/skinny/controller/feature/JSONFeature.scala
import skinny.util.JSONStringOps._
case class UserResponse(user: User)
case class User(name: String, age: Int, email: String,
isAlive: Boolean = false, friend: Option[User] = None)
val jsonString =
"""{
| "user": {
| "name" : "toto",
| "age" : 25,
| "email" : "toto@jmail.com",
| "isAlive" : true,
| "friend" : {
| "name" : "tata",
| "age" : 20,
| "email" : "tata@coldmail.com"
| }
| }
|}
""".stripMargin
val userResponse: Option[UserResponse] = fromJSONString[UserResponse](jsonString)
val jsonString2 = userResponse.map(r => toJSONString(r))
See also: json/src/test/scala/skinny/util/JSONStringOpsSpec.scala
If you need more complex operations, use json4s directly.
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