Packages

•  package root

  Definition Classes

  root

•  package meteor

  Definition Classes

  root

•  trait syntax extends AnyRef

  Utility to help writing meteor.codec.Codec, meteor.codec.Encoder and meteor.codec.Decoder.

  Utility to help writing meteor.codec.Codec, meteor.codec.Encoder and meteor.codec.Decoder.

  Examples:

  import meteor.syntax._
  import meteor.codec._
  
  case class Author(
    names: String,
    age: Int
  )
  
  case class Book(
    name: String,
    author: Author,
    coAuthor: Option[Author]
  )
  
  implicit val encoderForAuthor: Encoder[Author] = Encoder.instance { obj =>
    Map(
      "names" -> obj.names.asAttributeValue,
      "age" -> obj.age.asAttributeValue
    ).asAttributeValue
  }
  
  implicit val encoderForBook: Encoder[Book] = Encoder.instance { obj =>
    Map(
      "name" -> obj.names.asAttributeValue,
      "author" -> obj.age.asAttributeValue,
      "coAuthor" -> obj.age.asAttributeValue,
    ).asAttributeValue
  }
  
  implicit val decoderForAuthor: Decoder[Author] = Decoder.instance { av =>
    for {
      names <- av.getAs[String]("names")
      age <- av.getAs[Int]("age")
    } yield Author(names, age)
  }
  
  implicit val decoderForBook: Decoder[Book] = Decoder.instance { av =>
    for {
      name <- av.getAs[String]("name")
      author <- av.getAs[Author]("author")
      coAuthor <- av.getOpt[Author]("coAuthor")
    } yield Book(name, author, coAuthor)
  }

  Definition Classes

  meteor

• RichReadAttributeValue
• RichWriteAttributeValue

meteor.syntax

RichReadAttributeValue