in anghammarad/src/main/scala/com/gu/anghammarad/serialization/Serialization.scala [33:40]
private def parseEmailSender(jsonStr: String): Try[String] = {
val emailSender = for {
json <- parse(jsonStr)
sender <- json.hcursor.downField("emailSender").as[String]
} yield sender
emailSender.toTry
}