Type Class with Type Enrichment

typeclassWithTypeEnrichment.scala

// Type Class example with Type Enrichment

case class Picture(name: String, uri: String)

case class Attachment(name: String, uri: String, visible: Boolean)

trait JsonWriter[T]{
  def toJson(in: T): String
}

implicit class JsonSerializer[T](data: T){
  def toJson(implicit writer: JsonWriter[T]): String = 
    writer.toJson(data)
}
  
implicit object attachmentJsonSerializer extends JsonWriter[Attachment]{
  override def toJson(in: Attachment): String = s"attachment ${in.name}"
}
  
implicit object pictureJsonSerializer extends JsonWriter[Picture]{
  override def toJson(in: Picture): String = s"picture ${in.name}"
} 


println(new Picture("mypic", "mypicurl").toJson)

println(new Attachment("myattachment", "myurl", false).toJson)