entity

package

v1.1.2 Latest Latest Go to latest Published: Jun 28, 2022 License: MIT Imports: 7 Imported by: 0

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Repository

github.com/F0rzend/simple-go-webserver

Documentation ¶

Index ¶

Constants
Variables
func CountPrecision(value int) (int, error)
func MustCountPrecision(value int) int
type BTC
- func MustNewBTC(amount float64) BTC
- func NewBTC(amount float64) (BTC, error)
type BTCAction
- func NewBTCAction(action string) (BTCAction, error)
type BTCPrice
- func NewBTCPrice(price USD, updatedAt time.Time) BTCPrice
- func (btcPrice BTCPrice) GetPrice() USD
- func (btcPrice BTCPrice) GetUpdatedAt() time.Time
type BTCRepository
type USD
- func MustNewUSD(amount float64) USD
- func NewUSD(amount float64) (USD, error)
type USDAction
- func NewUSDAction(action string) (USDAction, error)

Constants ¶

View Source

const (
	SatoshiInBitcoin = 100_000_000

	BTCSuffix = "BTC"
)

View Source

const (
	CentInUSD = 100

	USDPrefix = "$"
)

View Source

const MinimalPrecision = 10

Variables ¶

View Source

var (
	DepositUSDAction  = USDAction{"deposit"}
	WithdrawUSDAction = USDAction{"withdraw"}

	BuyBTCAction  = BTCAction{"buy"}
	SellBTCAction = BTCAction{"sell"}
)

View Source

var ErrInvalidAction = errors.New("invalid action")

View Source

var ErrPrecisionInvalidFormat = errors.New("invalid format to get precision")

View Source

var ErrSubtractMoreBTCThanHave = errors.New("can't subtract more btc than available")

View Source

var ErrSubtractMoreUSDThanHave = errors.New("can't subtract more usd than available")

Functions ¶

func CountPrecision ¶

func CountPrecision(value int) (int, error)

CountPrecision counts float numbers precision From integer in format like 1 (one) with some amount of zeroes It uses math.Log10 to count the number of digits It is used for formatting (satoshi -> btc, cent -> dollar) See BTC.String and USD.String for example of usage

func MustCountPrecision ¶

func MustCountPrecision(value int) int

Types ¶

type BTC ¶

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

func MustNewBTC ¶

func MustNewBTC(amount float64) BTC

func NewBTC ¶

func NewBTC(amount float64) (BTC, error)

func (BTC) Add ¶

func (btc BTC) Add(toAdd BTC) BTC

func (BTC) Equal ¶

func (btc BTC) Equal(other BTC) bool

func (BTC) IsZero ¶

func (btc BTC) IsZero() bool

func (BTC) LessThan ¶

func (btc BTC) LessThan(other BTC) bool

func (BTC) String ¶

func (btc BTC) String() string

func (BTC) Sub ¶

func (btc BTC) Sub(toSubtract BTC) (BTC, error)

func (BTC) ToFloat ¶

func (btc BTC) ToFloat() *big.Float

func (BTC) ToFloat64 ¶

func (btc BTC) ToFloat64() float64

func (BTC) ToUSD ¶

func (btc BTC) ToUSD(price BTCPrice) USD

type BTCAction ¶

type BTCAction action

func NewBTCAction ¶

func NewBTCAction(action string) (BTCAction, error)

type BTCPrice ¶

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

func NewBTCPrice ¶

func NewBTCPrice(price USD, updatedAt time.Time) BTCPrice

func (BTCPrice) GetPrice ¶

func (btcPrice BTCPrice) GetPrice() USD

func (BTCPrice) GetUpdatedAt ¶

func (btcPrice BTCPrice) GetUpdatedAt() time.Time

type BTCRepository ¶

type BTCRepository interface {
	Get() BTCPrice
	SetPrice(price USD) error
}

type USD ¶

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

func MustNewUSD ¶

func MustNewUSD(amount float64) USD

func NewUSD ¶

func NewUSD(amount float64) (USD, error)

func (USD) Add ¶

func (usd USD) Add(toAdd USD) USD

func (USD) Equal ¶

func (usd USD) Equal(toCompare USD) bool

func (USD) IsZero ¶

func (usd USD) IsZero() bool

func (USD) LessThan ¶

func (usd USD) LessThan(toCompare USD) bool

func (USD) String ¶

func (usd USD) String() string

func (USD) Sub ¶

func (usd USD) Sub(toSubtract USD) (USD, error)

func (USD) ToFloat ¶

func (usd USD) ToFloat() *big.Float

func (USD) ToFloat64 ¶

func (usd USD) ToFloat64() float64

type USDAction ¶

type USDAction action

func NewUSDAction ¶

func NewUSDAction(action string) (USDAction, error)

Source Files ¶

View all Source files

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