using either

EmployeeService.kt

    fun findEmployeeByName(name: String): Either<Problem, Employee> {
        val request = Request(Method.GET, "http://myservice.org/employees").query("name", name)
        val response = client(request)
        return when (response.status) {
            Status.OK -> Employee(response.bodyString()).right()
            else -> HttpFailureProblem("Http call failed with status ${response.status} due to ${response.bodyString()}").left()
        }
    }