Class: Danconia::Exchange

Inherits:

Object

• Object
• Danconia::Exchange

Defined in:

lib/danconia/exchange.rb

Direct Known Subclasses

Danconia::Exchanges::BNA, Danconia::Exchanges::CurrencyLayer, Danconia::Exchanges::FixedRates

Instance Method Summary

• #rate(from, to, **opts) ⇒ Object
• #rates(**_opts) ⇒ Object

  Override this method in subclasses.

Instance Method Details

#rate(from, to, **opts) ⇒ Object

# File 'lib/danconia/exchange.rb', line 5

def rate from, to, **opts
  return 1.0 if from == to

  pair = Pair.new(from, to)
  rates = direct_and_inverted_rates(opts)
  rates[pair] or indirect_rate(pair, rates) or raise Errors::ExchangeRateNotFound.new(from, to)
end

#rates(**_opts) ⇒ Object

Override this method in subclasses. Should return a map of pairs to rates. See ‘FixedRates` for an example implementation.

Raises:

• (NotImplementedError)

# File 'lib/danconia/exchange.rb', line 15

def rates **_opts
  raise NotImplementedError
end