defmodule Prometheus.Format.Protobuf do
  @moduledoc """
  Serializes Prometheus registry using [protocol buffer format](http://bit.ly/2cxSuJP).
  """

  require Prometheus.Error

  @doc """
  Content type of protocol buffer format.
  """
  def content_type do
    require Prometheus.Error
    Prometheus.Error.with_prometheus_error(:prometheus_protobuf_format.content_type())
  end

  @doc """
  Format `registry` (default is `:default`) using protocol buffer format.
  """
  def format(registry \\ :default) do
    require Prometheus.Error
    Prometheus.Error.with_prometheus_error(:prometheus_protobuf_format.format(registry))
  end
end