usage.scala

object HealthCheckRoute {

  implicit val healthCheckEncoder: Encoder[HealthCheck] = deriveEncoder[HealthCheck]

  implicit def healthCheckEntityEncoder[F[_] : Sync]: EntityEncoder[F, HealthCheck] = jsonEncoderOf

  def healthCheck[F[_] : Sync](service: HealthCheckService[F]): HttpRoutes[F] = {
    val dsl = new Http4sDsl[F]() {}
    import dsl._

    HttpRoutes.of[F] {
      case GET -> Root / "health-check" => for {
        healthCheck <- service.healthCheck
        response <- healthCheck.fold(l => ServiceUnavailable(l), r => Ok(r))
      } yield response
    }
  }
}