HatemKhattab / currency_convert

A gem to convert between currencies

CurrencyConvert

A gem to deal with money, convert to another currency and perform different comparisons.

Installation

Add this line to your application's Gemfile:

gem 'currency_convert'

And then execute:

$ bundle

Or install it yourself as:

$ gem install currency_convert

Usage

Create a new money

fifty_euros = Money.new(50, 'EUR')
# fifty_eur.amount   # => 50
# fifty_eur.currency # => "EUR"
# fifty_eur.inspect  # => "50.00 EUR"

Configure the currency rates with respect to a base currency (here EUR)

Money.conversion_rates('EUR', {
  'USD'     => 1.11,
  'Bitcoin' => 0.0047
})

Convert to different curency (return a Money instance)

fifty_eur.convert_to('USD') # => 55.50 USD

Perform operations in different currencies:

fifty_eur + twenty_dollars # => 68.02 EUR  
fifty_eur - twenty_dollars # => 31.98 EUR
fifty_eur / 2              # => 25 EUR
twenty_dollars * 3         # => 60 USD

Comparisons

twenty_dollars == Money.new(20, 'USD') # => true   
twenty_dollars == Money.new(30, 'USD') # => false

fifty_eur_in_usd = fifty_eur.convert_to('USD')
fifty_eur_in_usd == fifty_eur          # => true    

twenty_dollars > Money.new(5, 'USD')   # => true
twenty_dollars < fifty_eur             # => true   

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/HatemKhattab/currency_convert.

License

The gem is available as open source under the terms of the MIT License.