cannot be applied to (play.api.mvc.AnyContent) - scala

Question

when i try to convert my content of request body to json this happens..
code:
def addItem() = Action { implicit request =>
val content:AnyContent = request.body
val res = Json.parse(content)
Ok("done")
}
sbt compile msg:
**overloaded method parse with alternatives:
[error] (input: Array[Byte])play.api.libs.json.JsValue <and>
[error] (input: java.io.InputStream)play.api.libs.json.JsValue <and>
[error] (input: String)play.api.libs.json.JsValue
[error] cannot be applied to (play.api.mvc.AnyContent)
[error] val res = Json.parse(content)**
i want to know why i can't convert my content as json ?

Answer 1

AnyContent provides a helper method asJson:
ef addItem() = Action { implicit request =>
val content: AnyContent = request.body
val res: Option[JsValue] = content.asJson
Ok("done")
}
Or, you can use Play's body parser directly:
def addItem() = Action(parse.json) { implicit request: Request[JsValue] =>
val content: JsValue = request.body
// ...
Ok("done")
}
It will give a HTTP 400 automatically if content is not JSON.
See https://www.playframework.com/documentation/2.8.x/ScalaBodyParsers