JsonDecoder

Configuration-bound decoder bundles.

Summons a decoder instance for type A.

val stringDec = JsonDecoder[String]

Derives a decoder for type A using Scala 3 mirrors.

Supports both product types (case classes) and sum types (sealed traits). Enabled via derives JsonDecoder clause.

case class Point(x: Int, y: Int) derives JsonDecoder
sealed trait Color derives JsonDecoder
case object Red  extends Color
case object Blue extends Color

Decodes BigDecimal from JString or JNumber depending on config.

Decodes BigInt from JString or JNumber depending on config.

Decodes JBool to Boolean.

Derives a decoder for product types (case classes) by decoding each field from a JObject.

Derives a decoder for sum types (sealed traits/enums) using wrapped-by-type-key discriminator.

Decodes JNumber to Double.

Decodes Instant from ISO-8601 JString.

Decodes JNumber to Int.

Decodes JArray to List.

Decodes JNumber to Long.

Decodes JObject to Map by converting field names with JsonKeyCodec.

Fails on key parse errors or duplicate decoded keys after normalization.

Decodes Option, treating JNull as None.

Decodes JString to String.

Decodes JArray to Vector.