Implements a Json Schema[A] using sttp-apispec and Circe.
Circe Decoders and Encoders are derived from the schema definition.
The idea for this has been in part been due to Fabio Labella's Dynosaur and I have stolen the Prism class from that repo to avoid adding a dependency to monocle.
To use this include a dependency to:
libraryDependencies += "net.hamnaberg" %% "jsonschema-core" % "version" import net.hamnaberg.schema._
case class Person(name: String, age: Int)
object Person {
implicit val schema: Schema[Person] = Schema.record[Person] { field =>
(
field[String]("name", _.name),
field[Int]("age", _.age)(Schema.boundedInt(Bounds.both(Bound.Inclusive(0), Bound.Exclusive(150))))
).mapN(Person.apply)
}
}
import io.circe._
import io.circe.syntax._
object Main {
def main(args: Array[String]) = {
val json = Json.obj("name" := "Erlend", "age" := 40)
val Right(result) = schema.decode(json)
println(result)
}
}
