Money.ExchangeRates.OpenExchangeRates.get_historic_rates
You're seeing just the function
get_historic_rates
, go back to Money.ExchangeRates.OpenExchangeRates module for more information.
Retrieves the historic exchange rates from Open Exchange Rates site.
date
is a date returned byDate.new/3
or any struct with the elements:year
,:month
and:day
.config
is the retrieval configuration. When invoked from the exchange rates services this will be the config returned fromMoney.ExchangeRates.config/0
Returns:
{:ok, rates}
if the rates can be retrieved{:error, reason}
if rates cannot be retrieved
Typically this function is called by the exchange rates retrieval service although it can be called outside that context as required.