play-json/play.api.libs.json/JsReadable

JsReadable

trait JsReadable

A trait representing a Json node which can be read as an arbitrary type A using a Reads[A]

class Any
class JsDefined
trait JsValue
class JsArray
class JsBoolean
object JsFalse
object JsTrue
object JsNull
class JsNumber
class JsObject
class JsString

Value members

Abstract methods

def validate[T](implicit rds: Reads[T]): JsResult[T]

Tries to convert the node into a JsResult[T] (Success or Error). An implicit Reads[T] must be defined.

Tries to convert the node into a JsResult[T] (Success or Error). An implicit Reads[T] must be defined.

Concrete methods

def as[T](implicit fjs: Reads[T]): T

Tries to convert the node into a T, throwing an exception if it can't. An implicit Reads[T] must be defined.

Tries to convert the node into a T, throwing an exception if it can't. An implicit Reads[T] must be defined.

def asOpt[T](implicit fjs: Reads[T]): Option[T]

Tries to convert the node into a T. An implicit Reads[T] must be defined. Any error is mapped to None

Tries to convert the node into a T. An implicit Reads[T] must be defined. Any error is mapped to None

Returns

Some[T] if it succeeds, None if it fails.

def transform[A <: JsValue](rds: Reads[A]): JsResult[A]

Transforms this node into a JsResult using provided Json transformer Reads[JsValue]

Transforms this node into a JsResult using provided Json transformer Reads[JsValue]