currency

Documentation

Index

• Constants
• Variables
• func NewCurrencyModule() kernel.ModuleFactory
• type Body
• type Content
  • func (c Content) GetTime() (time.Time, error)
• type Currency
• type ExchangeResponse
• type HistoricalBody
• type HistoricalExchangeResponse
• type Module
  • func (module *Module) Run(ctx context.Context) error
• type Rate
• type Sender
• type Service
  • func New(ctx context.Context, config cfg.Config, logger log.Logger) (Service, error)
  • func NewWithInterfaces(store kvstore.KvStore[float64], clock clock.Clock) Service
• type UpdaterService
  • func NewUpdater(ctx context.Context, config cfg.Config, logger log.Logger) (UpdaterService, error)
  • func NewUpdaterWithInterfaces(logger log.Logger, store kvstore.KvStore[float64], httpClient http.Client, ...) UpdaterService

Constants

const (
	ExchangeRateRefresh           = 8 * time.Hour
	ExchangeRateUrl               = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"
	HistoricalExchangeRateUrl     = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-hist.xml"
	ExchangeRateDateKey           = "currency_exchange_last_refresh"
	HistoricalExchangeRateDateKey = "currency_exchange_historical_last_refresh"
)

const Eur = "EUR"

const Usd = "USD"

const YMDLayout = "2006-01-02"

Variables

var Currencies = map[string]string{
	Eur: "€",
	Usd: "$",
}

Functions

func NewCurrencyModule

func NewCurrencyModule() kernel.ModuleFactory

Types

type Body

type Body struct {
	Content Content `xml:"Cube"`
}

type Content

type Content struct {
	Time  string `xml:"time,attr"`
	Rates []Rate `xml:"Cube"`
}

func (Content) GetTime

func (c Content) GetTime() (time.Time, error)

type Currency

type Currency string

type ExchangeResponse

type ExchangeResponse struct {
	Subject string `xml:"subject"`
	Sender  Sender `xml:"Sender"`
	Body    Body   `xml:"Cube"`
}

type HistoricalBody

type HistoricalBody struct {
	Content []Content `xml:"Cube"`
}

type HistoricalExchangeResponse

type HistoricalExchangeResponse struct {
	Subject string         `xml:"subject"`
	Sender  Sender         `xml:"Sender"`
	Body    HistoricalBody `xml:"Cube"`
}

type Module

type Module struct {
	kernel.BackgroundModule
	kernel.ServiceStage
	// contains filtered or unexported fields
}

func (*Module) Run

func (module *Module) Run(ctx context.Context) error

type Rate

type Rate struct {
	Currency string  `xml:"currency,attr"`
	Rate     float64 `xml:"rate,attr"`
}

type Sender

type Sender struct {
	Name string `xml:"name"`
}

type Service

type Service interface {
	HasCurrency(ctx context.Context, currency string) (bool, error)
	HasCurrencyAtDate(ctx context.Context, currency string, date time.Time) (bool, error)
	ToEur(ctx context.Context, value float64, fromCurrency string) (float64, error)
	ToEurAtDate(ctx context.Context, value float64, fromCurrency string, date time.Time) (float64, error)
	ToUsd(ctx context.Context, value float64, fromCurrency string) (float64, error)
	ToUsdAtDate(ctx context.Context, value float64, fromCurrency string, date time.Time) (float64, error)
	ToCurrency(ctx context.Context, toCurrency string, value float64, fromCurrency string) (float64, error)
	ToCurrencyAtDate(ctx context.Context, toCurrency string, value float64, fromCurrency string, date time.Time) (float64, error)
}

func New

func New(ctx context.Context, config cfg.Config, logger log.Logger) (Service, error)

func NewWithInterfaces

func NewWithInterfaces(store kvstore.KvStore[float64], clock clock.Clock) Service

type UpdaterService

type UpdaterService interface {
	EnsureRecentExchangeRates(ctx context.Context) error
	EnsureHistoricalExchangeRates(ctx context.Context) error
}

func NewUpdater

func NewUpdater(ctx context.Context, config cfg.Config, logger log.Logger) (UpdaterService, error)

func NewUpdaterWithInterfaces

func NewUpdaterWithInterfaces(logger log.Logger, store kvstore.KvStore[float64], httpClient http.Client, clock clock.Clock) UpdaterService