class ExchangerFixer
Public Class Methods
new()
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default constructor
Calls superclass method
ExchangerBase::new
# File lib/mrpin/core/currency_exchanger/fixer/exchanger_fixer.rb, line 13 def initialize super @exchanger_api = ManagerRemoteHttp.new(url: 'http://api.fixer.io') end
Public Instance Methods
get_rate(from_currency, to_currency)
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# File lib/mrpin/core/currency_exchanger/fixer/exchanger_fixer.rb, line 21 def get_rate(from_currency, to_currency) result = nil params = { base: from_currency, symbols: to_currency } response = @exchanger_api.get('latest', params) assert(response[:status] == EResponseType::ERT_OK, response) response_exchanger = JSON.parse response[:response], {symbolize_names: true} rates = response_exchanger.assert_property!(:rates) #not all currencies supported by fixer.io. So we need check them. if rates.has_key?(to_currency.to_sym) rate_string = rates[to_currency.to_sym] result = rate_string.to_f end result end