price

Documentation

Index

• type DataPerTokenAndCurrency
• type DataPoint
• type Manager
  • func NewManager(priceProvider Provider) *Manager
  • func (pm *Manager) FetchPrice(symbol string, currency string) (float64, error)
  • func (pm *Manager) FetchPrices(symbols []string, currencies []string) (map[string]map[string]float64, error)
  • func (pm *Manager) GetCachedPrices() DataPerTokenAndCurrency
  • func (pm *Manager) GetOrFetchPrices(symbols []string, currencies []string, maxAgeInSeconds int64) (DataPerTokenAndCurrency, error)
• type Provider

Types

type DataPerTokenAndCurrency

type DataPerTokenAndCurrency = map[string]map[string]DataPoint

type DataPoint

type DataPoint struct {
	Price     float64
	UpdatedAt int64
}

type Manager

type Manager struct {
	// contains filtered or unexported fields
}

func NewManager

func NewManager(priceProvider Provider) *Manager

func (*Manager) FetchPrice

func (pm *Manager) FetchPrice(symbol string, currency string) (float64, error)

func (*Manager) FetchPrices

func (pm *Manager) FetchPrices(symbols []string, currencies []string) (map[string]map[string]float64, error)

func (*Manager) GetCachedPrices

func (pm *Manager) GetCachedPrices() DataPerTokenAndCurrency

func (*Manager) GetOrFetchPrices

func (pm *Manager) GetOrFetchPrices(symbols []string, currencies []string, maxAgeInSeconds int64) (DataPerTokenAndCurrency, error)

Return cached price if present in cache and age is less than maxAgeInSeconds. Fetch otherwise.

type Provider

type Provider interface {
	FetchPrices(symbols []string, currencies []string) (map[string]map[string]float64, error)
}