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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).
Current section
Files
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Files
lib/money/exchange_rates/callback.ex
defmodule Money.ExchangeRates.Callback do
@moduledoc """
Default exchange rates retrieval callback module.
When exchange rates are successfully retrieved, the function
`latest_rates_retrieved/2` or `historic_rates_retrieved/2` is
called to perform any desired serialization or processing.
"""
@doc """
Invoked after the latest exchange rates have been successfully retrieved.
Use this callback to perform any desired side effects such as persisting
rates to a database.
"""
@callback latest_rates_retrieved(%{}, DateTime.t()) :: :ok
@doc """
Invoked after historic exchange rates for a given date have been successfully
retrieved. Use this callback to perform any desired side effects such as
persisting rates to a database.
"""
@callback historic_rates_retrieved(%{}, Date.t()) :: :ok
@doc """
Callback function invoked when the latest exchange rates are retrieved.
"""
@spec latest_rates_retrieved(%{}, DateTime.t()) :: :ok
def latest_rates_retrieved(_rates, _retrieved_at) do
:ok
end
@doc """
Callback function invoked when historic exchange rates are retrieved.
"""
@spec historic_rates_retrieved(%{}, Date.t()) :: :ok
def historic_rates_retrieved(_rates, _date) do
:ok
end
end