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• calypso-scalapb_2.13
• 0.4.0
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• GeneratedMessageDecoder.scala

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ru.m2.calypso.scalapb.GeneratedMessageDecoder.scala Maven / Gradle / Ivy

package ru.m2.calypso.scalapb

import cats.syntax.either._
import ru.m2.calypso.Decoder
import scalapb.GeneratedMessageCompanion

object GeneratedMessageDecoder {
  implicit def decodeGeneratedMessageFromBinary[
      A <: scalapb.GeneratedMessage: GeneratedMessageCompanion
  ]: Decoder[A] =
    Decoder[Array[Byte]]
      .emap { ba =>
        Either
          .catchNonFatal(implicitly[GeneratedMessageCompanion[A]].parseFrom(ba))
          .leftMap(_.getMessage)
      }
}