core

var (
	// ErrInvalidRate indicates that an invalid exchange rate was provided
	ErrInvalidRate = errors.New("invalid exchange rate")

	// ErrUnsupportedCurrencyPair indicates that the currency pair is not supported
	ErrUnsupportedCurrencyPair = errors.New("unsupported currency pair")

	// ErrProviderUnavailable indicates that the rate provider is not available
	ErrProviderUnavailable = errors.New("rate provider unavailable")

	// ErrRateNotFound indicates that the requested rate was not found
	ErrRateNotFound = errors.New("exchange rate not found")

	// ErrInvalidAmount indicates that an invalid amount was provided
	ErrInvalidAmount = errors.New("invalid amount")
)