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sttp.client4.upicklejson.SttpUpickleApi.scala Maven / Gradle / Ivy

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package sttp.client4.upicklejson

import sttp.client4._
import sttp.client4.internal.Utf8
import sttp.model.MediaType
import sttp.client4.json._

trait SttpUpickleApi {
  val upickleApi: upickle.Api

  implicit def upickleBodySerializer[B](implicit encoder: upickleApi.Writer[B]): BodySerializer[B] =
    b => StringBody(upickleApi.write(b), Utf8, MediaType.ApplicationJson)

  /** If the response is successful (2xx), tries to deserialize the body from a string into JSON. Returns:
    *   - `Right(b)` if the parsing was successful
    *   - `Left(HttpError(String))` if the response code was other than 2xx (deserialization is not attempted)
    *   - `Left(DeserializationException)` if there's an error during deserialization
    */
  def asJson[B: upickleApi.Reader: IsOption]: ResponseAs[Either[ResponseException[String, Exception], B]] =
    asString.mapWithMetadata(ResponseAs.deserializeRightWithError(deserializeJson)).showAsJson

  /** Tries to deserialize the body from a string into JSON, regardless of the response code. Returns:
    *   - `Right(b)` if the parsing was successful
    *   - `Left(DeserializationException)` if there's an error during deserialization
    */
  def asJsonAlways[B: upickleApi.Reader: IsOption]: ResponseAs[Either[DeserializationException[Exception], B]] =
    asStringAlways.map(ResponseAs.deserializeWithError(deserializeJson)).showAsJsonAlways

  /** Tries to deserialize the body from a string into JSON, using different deserializers depending on the status code.
    * Returns:
    *   - `Right(B)` if the response was 2xx and parsing was successful
    *   - `Left(HttpError(E))` if the response was other than 2xx and parsing was successful
    *   - `Left(DeserializationException)` if there's an error during deserialization
    */
  def asJsonEither[E: upickleApi.Reader: IsOption, B: upickleApi.Reader: IsOption]
      : ResponseAs[Either[ResponseException[E, Exception], B]] =
    asJson[B].mapLeft {
      case HttpError(e, code) => deserializeJson[E].apply(e).fold(DeserializationException(e, _), HttpError(_, code))
      case de @ DeserializationException(_, _) => de
    }.showAsJsonEither

  def deserializeJson[B: upickleApi.Reader: IsOption]: String => Either[Exception, B] = { (s: String) =>
    try
      Right(upickleApi.read[B](JsonInput.sanitize[B].apply(s)))
    catch {
      case e: Exception => Left(e)
      case t: Throwable =>
        // in ScalaJS, ArrayIndexOutOfBoundsException exceptions are wrapped in org.scalajs.linker.runtime.UndefinedBehaviorError
        t.getCause match {
          case e: ArrayIndexOutOfBoundsException => Left(e)
          case _                                 => throw t
        }
    }
  }
}




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