package com.github.dakatsuka.akka.http.oauth2.client.utils import akka.http.scaladsl.model.ContentTypeRange import akka.http.scaladsl.model.MediaTypes.`application/json` import akka.http.scaladsl.unmarshalling.{ FromEntityUnmarshaller, Unmarshaller } import akka.util.ByteString import io.circe.{ jawn, Decoder, Json } trait JsonUnmarshaller { def unmarshallerContentTypes: Seq[ContentTypeRange] = List(`application/json`) implicit def jsonUnmarshaller: FromEntityUnmarshaller[Json] = Unmarshaller.byteStringUnmarshaller .forContentTypes(unmarshallerContentTypes: _*) .map { case ByteString.empty => throw Unmarshaller.NoContentException case data => jawn.parseByteBuffer(data.asByteBuffer).fold(throw _, identity) } implicit def unmarshaller[A: Decoder]: FromEntityUnmarshaller[A] = { def decode(json: Json) = implicitly[Decoder[A]].decodeJson(json).fold(throw _, identity) jsonUnmarshaller.map(decode) } }