def get_server_id(server_id)
      return nil unless server_id =~ /^[0-9]+$/
      ret = nr_api.get(url('servers', server_id)).body
      ret['server']
    rescue Faraday::ResourceNotFound, NoMethodError
      nil
    end
def get_server_id(server_id)
      return nil unless server_id =~ /^[0-9]+$/
      ret = nr_api.get(url('servers', server_id)).body
      ret['server']
    rescue Faraday::ResourceNotFound, NoMethodError
      nil
    end
=> Get a Server based on ID