DailyExchangeRatesBank
A bank for the money gem that determines exchange rates for any desired date.
Missing exchange rates are fetched from api.frankfurter.app. This is
configurable with the RATES_API_URL environment variable.
Installation
Add this line to your application's Gemfile:
gem 'daily_exchange_rates_bank'
and then execute:
$ bundle
Or install it yourself:
$ gem install daily_exchange_rates_bank
Usage
require 'daily_exchange_rates_bank'
bank = DailyExchangeRatesBank.new
Money.default_bank = bank
Money.new(100, 'EUR').exchange_to('USD') # => Money.new(109, 'USD')
bank.get_rate('EUR', 'USD') # => 1.0935
date = Date.new(2019, 7, 1)
bank.exchange(100, 'EUR', 'USD', date) # => Money.new(113, 'USD')
bank.exchange_with(Money.new(100, 'EUR'), 'USD', date) # => Money.new(113, 'USD')If you are using the money-rails
gem, you can set the default_bank in config/initializers/money.rb:
MoneyRails.configure do |config|
config.default_bank = DailyExchangeRatesBank.new
# remaining config
end