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ex_rated

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ExRated, the OTP GenServer with the naughty name that allows you to rate-limit calls to any service that requires it. For example, rate-limit calls to your favorite API which requires no more than `limit` API calls within a `scale` milliseconds time window.

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ex_rated lib utils.ex
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lib/utils.ex 

defmodule ExRated.Utils do

  @moduledoc false



  @doc """

  Determines the current version of OTP running this node. The result is

  cached for fast lookups in performance-sensitive functions.

  ## Example

      iex> rel = ExRated.Utils.get_otp_release

      ...> '\#{rel}' == :erlang.system_info(:otp_release)

      true

  """

  def get_otp_release do

    case Process.get(:current_otp_release) do

      nil ->

        case ("#{:erlang.system_info(:otp_release)}" |> Integer.parse) do

          {ver, _} when is_integer(ver) ->

            Process.put(:current_otp_release, ver)

            ver

          _ ->

        end

      ver -> ver

    end

  end

end