404 recovering for http4s v0.17 client. Thanks helpful folks from https://gitter.im/http4s/http4s

clientImplicits.scala

import cats._
import cats.implicits._
import org.http4s._
import org.http4s.client._

object clientImplicits {
  implicit class ClientSyntax[F[_], E](val client: Client[F]) extends AnyVal {
    def expectOption[A](
      req: F[Request[F]])(implicit dec: EntityDecoder[F, A], E: ApplicativeError[F, E]): F[Option[A]] = {
      client.expect[A](req).map[Option[A]](Some(_)).recover {
        case UnexpectedStatus(Status.NotFound) => None
      }
    }
  }
}