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ex_money

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Money functions for operations on and localization of a money data type with support for ISO 4217 currencies and ISO 24165 digial tokens (crypto currencies).

Retired package: Deprecated
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ex_money lib money exchange_rates callback_module.ex
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lib/money/exchange_rates/callback_module.ex 

defmodule Money.ExchangeRates.Callback do

  @moduledoc """

  Default exchange rates retrieval callback module.



  When exchange rates are successfully retrieved, the function

  `rates_retrieved/2` is called to perform any desired serialization or

  proocessing.

  """



  @doc """

  Defines the behaviour to retrieve exchange rates from an external

  data source.

  """

  @callback rates_retrieved(%{}, %DateTime{}) :: :ok



  @doc """

  Callback function invoked when exchange rates are retrieved.

  """

  @spec rates_retrieved(%{}, %DateTime{}) :: :ok

  def rates_retrieved(_rates, _retrieved_at) do

    :ok

  end

end