Config reader that uses a pureconfig.ConfigReader implicit instance for a type to decode it from Typesafe Config.

Always automatically derives a codec if it's not available.

Automatic derivation will use **camelCase** fields, NOT kebab-case fields, as in default pureconfig. It also overrides pureconfig's default type field type discriminator for sealed traits, instead using a circe-like format with a single-key object.

Example:

sealed trait AorB
final case class A(a: Int) extends AorB
final case class B(b: String) extends AorB

final case class Config(values: List[AorB])

In config:

config {
  values = [
    { A { a = 123 } },
    { B { b = cba } }
  ]
}

Auto-derivation will work without importing pureconfig.generic.auto._ and without any other imports

You may use izumi.distage.config.codec.PureconfigAutoDerive if you want to use DIConfigReader's deriving strategy to derive a standalone pureconfig codec:

final case class Abc(a: Duration, b: Regex, c: URL)

object Abc {
  implicit val configReader: pureconfig.ConfigReader[Abc] =
    PureconfigAutoDerive[Abc]
}