types

package
v1.25.4 Latest Latest
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 Go to latest Published: Jan 13, 2022 License: MIT Imports: 23 Imported by: 161

Documentation

Index

Constants

View Source 
const (
	AccountTypeFutures = AccountType("futures")
	AccountTypeSpot    = AccountType("spot")
)
View Source 
const (
	DepositPending = DepositStatus("pending")

	DepositRejected = DepositStatus("rejected")

	DepositSuccess = DepositStatus("success")

	DepositCancelled = DepositStatus("canceled")

	// created but can not withdraw
	DepositCredited = DepositStatus("credited")
)
View Source 
const (
	ExchangeMax      = ExchangeName("max")
	ExchangeBinance  = ExchangeName("binance")
	ExchangeFTX      = ExchangeName("ftx")
	ExchangeOKEx     = ExchangeName("okex")
	ExchangeKucoin   = ExchangeName("kucoin")
	ExchangeBacktest = ExchangeName("backtest")
)
View Source 
const (
	PositionShort  = PositionType("Short")
	PositionLong   = PositionType("Long")
	PositionClosed = PositionType("Closed")
)
View Source 
const (
	Red   = Color(false)
	Black = Color(true)
)
View Source 
const (
	RewardAirdrop    = RewardType("airdrop")
	RewardCommission = RewardType("commission")
	RewardHolding    = RewardType("holding")
	RewardMining     = RewardType("mining")
	RewardTrading    = RewardType("trading")
	RewardVipRebate  = RewardType("vip_rebate")
)
View Source 
const (
	SideTypeBuy  = SideType("BUY")
	SideTypeSell = SideType("SELL")
	SideTypeSelf = SideType("SELF")

	// SideTypeBoth is only used for the configuration context
	SideTypeBoth = SideType("BOTH")
)
View Source 
const DateFormat = "2006-01-02"
View Source 
const DirectionDown = -1
View Source 
const DirectionNone = 0
View Source 
const DirectionUp = 1
View Source 
const GrayColor = "#f0f0f0"
View Source 
const GreenColor = "#228B22"
View Source 
const NoClientOrderID = "0"
View Source 
const RedColor = "#800000"

Variables

View Source 
var BNB = accounting.Accounting{Symbol: "BNB ", Precision: 4}
View Source 
var BTC = accounting.Accounting{Symbol: "BTC ", Precision: 8}
View Source 
var BookChannel = Channel("book")
View Source 
var BookTickerChannel = Channel("bookticker")
View Source 
var ErrInvalidSideType = errors.New("invalid side type")
View Source 
var FiatCurrencies = []string{"USDC", "USDT", "USD", "TWD", "EUR", "GBP", "BUSD"}
View Source 
var Interval12h = Interval("12h")
View Source 
var Interval15m = Interval("15m")
View Source 
var Interval1d = Interval("1d")
View Source 
var Interval1h = Interval("1h")
View Source 
var Interval1m = Interval("1m")
View Source 
var Interval2h = Interval("2h")
View Source 
var Interval30m = Interval("30m")
View Source 
var Interval3d = Interval("3d")
View Source 
var Interval4h = Interval("4h")
View Source 
var Interval5m = Interval("5m")
View Source 
var Interval6h = Interval("6h")
View Source 
var KLineChannel = Channel("kline")
View Source 
var SupportedExchanges = []ExchangeName{"binance", "max", "ftx", "okex", "kucoin"}
View Source 
var SupportedIntervals = map[Interval]int{
	Interval1m:  1,
	Interval5m:  5,
	Interval15m: 15,
	Interval30m: 30,
	Interval1h:  60,
	Interval2h:  60 * 2,
	Interval4h:  60 * 4,
	Interval6h:  60 * 6,
	Interval12h: 60 * 12,
	Interval1d:  60 * 24,
	Interval3d:  60 * 24 * 3,
}
View Source 
var USD = accounting.Accounting{Symbol: "$ ", Precision: 2}

Functions

func IsFiatCurrency added in v1.18.1 

func IsFiatCurrency(currency string) bool

func MustParseUnixTimestamp added in v1.21.0 

func MustParseUnixTimestamp(a string) time.Time

func NewOrderError added in v1.25.3 

func NewOrderError(e error, o Order) error

func SideToColorName 

func SideToColorName(side SideType) string

Types

type Account 

type Account struct {
	sync.Mutex `json:"-"`

	AccountType AccountType `json:"accountType,omitempty"`
	FuturesInfo *FuturesAccountInfo

	MakerFeeRate fixedpoint.Value `json:"makerFeeRate,omitempty"`
	TakerFeeRate fixedpoint.Value `json:"takerFeeRate,omitempty"`

	// bps. 0.15% fee will be 15.
	MakerCommission fixedpoint.Value `json:"makerCommission,omitempty"`
	TakerCommission fixedpoint.Value `json:"takerCommission,omitempty"`

	TotalAccountValue fixedpoint.Value `json:"totalAccountValue,omitempty"`

	CanDeposit  bool `json:"canDeposit"`
	CanTrade    bool `json:"canTrade"`
	CanWithdraw bool `json:"canWithdraw"`
	// contains filtered or unexported fields
}

func NewAccount 

func NewAccount() *Account

func (*Account) AddBalance 

func (a *Account) AddBalance(currency string, fund fixedpoint.Value)

func (*Account) Balance 

func (a *Account) Balance(currency string) (balance Balance, ok bool)

func (*Account) Balances 

func (a *Account) Balances() (d BalanceMap)

Balances lock the balances and returned the copied balances

func (*Account) BindStream 

func (a *Account) BindStream(stream Stream)

func (*Account) LockBalance 

func (a *Account) LockBalance(currency string, locked fixedpoint.Value) error

func (*Account) Print 

func (a *Account) Print()

func (*Account) UnlockBalance 

func (a *Account) UnlockBalance(currency string, unlocked fixedpoint.Value) error

func (*Account) UpdateBalances 

func (a *Account) UpdateBalances(balances BalanceMap)

func (*Account) UseLockedBalance 

func (a *Account) UseLockedBalance(currency string, fund fixedpoint.Value) error

type AccountType added in v1.18.5 

type AccountType string

type Asset added in v1.11.0 

type Asset struct {
	Currency  string           `json:"currency" db:"currency"`
	Total     fixedpoint.Value `json:"total" db:"total"`
	InUSD     fixedpoint.Value `json:"inUSD" db:"inUSD"`
	InBTC     fixedpoint.Value `json:"inBTC" db:"inBTC"`
	Time      time.Time        `json:"time" db:"time"`
	Locked    fixedpoint.Value `json:"lock" db:"lock" `
	Available fixedpoint.Value `json:"available"  db:"available"`
}

type AssetMap added in v1.11.0 

type AssetMap map[string]Asset

func (AssetMap) PlainText added in v1.18.0 

func (m AssetMap) PlainText() (o string)

func (AssetMap) SlackAttachment added in v1.18.0 

func (m AssetMap) SlackAttachment() slack.Attachment

func (AssetMap) Slice added in v1.18.0 

func (m AssetMap) Slice() (assets []Asset)

type Balance 

type Balance struct {
	Currency  string           `json:"currency"`
	Available fixedpoint.Value `json:"available"`
	Locked    fixedpoint.Value `json:"locked"`
}

func (Balance) String added in v1.2.0 

func (b Balance) String() string

func (Balance) Total added in v1.11.1 

func (b Balance) Total() fixedpoint.Value

type BalanceMap 

type BalanceMap map[string]Balance

func (BalanceMap) Assets added in v1.11.0 

func (m BalanceMap) Assets(prices map[string]float64) AssetMap

func (BalanceMap) Copy added in v1.18.0 

func (m BalanceMap) Copy() (d BalanceMap)

func (BalanceMap) Print 

func (m BalanceMap) Print()

func (BalanceMap) String added in v1.2.0 

func (m BalanceMap) String() string

type BookTicker added in v1.21.0 

type BookTicker struct {
	//Time     time.Time
	Symbol   string
	Buy      fixedpoint.Value // `buy` from Max, `bidPrice` from binance
	BuySize  fixedpoint.Value
	Sell     fixedpoint.Value // `sell` from Max, `askPrice` from binance
	SellSize fixedpoint.Value
}

BookTicker time exists in ftx, not in binance last exists in ftx, not in binance

func (BookTicker) String added in v1.21.0 

func (b BookTicker) String() string

type Channel 

type Channel string

type Color added in v1.17.0 

type Color bool

Color is the RB Tree color

type CustomIntervalProvider added in v1.21.0 

type CustomIntervalProvider interface {
	SupportedInterval() map[Interval]int
	IsSupportedInterval(interval Interval) bool
}

type Deposit 

type Deposit struct {
	GID           int64         `json:"gid" db:"gid"`
	Exchange      ExchangeName  `json:"exchange" db:"exchange"`
	Time          Time          `json:"time" db:"time"`
	Amount        float64       `json:"amount" db:"amount"`
	Asset         string        `json:"asset" db:"asset"`
	Address       string        `json:"address" db:"address"`
	AddressTag    string        `json:"addressTag"`
	TransactionID string        `json:"transactionID" db:"txn_id"`
	Status        DepositStatus `json:"status"`
}

func (Deposit) EffectiveTime 

func (d Deposit) EffectiveTime() time.Time

type DepositStatus 

type DepositStatus string

type Depth added in v1.25.4 

type Depth string
const (
	DepthLevelFull   Depth = "FULL"
	DepthLevelMedium Depth = "MEDIUM"
	DepthLevel1      Depth = "1"
	DepthLevel5      Depth = "5"
	DepthLevel20     Depth = "20"
)

type Direction added in v1.2.1 

type Direction int

type Dispatcher added in v1.23.0 

type Dispatcher func(e interface{})

type Duration added in v1.3.1 

type Duration time.Duration

func (Duration) Duration added in v1.3.1 

func (d Duration) Duration() time.Duration

func (*Duration) UnmarshalJSON added in v1.3.1 

func (d *Duration) UnmarshalJSON(data []byte) error

type EndpointCreator added in v1.23.0 

type EndpointCreator func(ctx context.Context) (string, error)

type Exchange 

type Exchange interface {
	Name() ExchangeName

	PlatformFeeCurrency() string

	ExchangeMarketDataService

	ExchangeTradeService
}

type ExchangeFee added in v1.21.0 

type ExchangeFee struct {
	MakerFeeRate fixedpoint.Value
	TakerFeeRate fixedpoint.Value
}

type ExchangeMarketDataService added in v1.14.0 

type ExchangeMarketDataService interface {
	NewStream() Stream

	QueryMarkets(ctx context.Context) (MarketMap, error)

	QueryTicker(ctx context.Context, symbol string) (*Ticker, error)

	QueryTickers(ctx context.Context, symbol ...string) (map[string]Ticker, error)

	QueryKLines(ctx context.Context, symbol string, interval Interval, options KLineQueryOptions) ([]KLine, error)
}

type ExchangeName 

type ExchangeName string

func ValidExchangeName 

func ValidExchangeName(a string) (ExchangeName, error)

func (ExchangeName) String 

func (n ExchangeName) String() string

func (*ExchangeName) UnmarshalJSON added in v1.11.1 

func (n *ExchangeName) UnmarshalJSON(data []byte) error

func (*ExchangeName) Value added in v1.14.0 

func (n *ExchangeName) Value() (driver.Value, error)

type ExchangeRewardService added in v1.13.0 

type ExchangeRewardService interface {
	QueryRewards(ctx context.Context, startTime time.Time) ([]Reward, error)
}

type ExchangeTradeHistoryService added in v1.17.0 

type ExchangeTradeHistoryService interface {
	QueryTrades(ctx context.Context, symbol string, options *TradeQueryOptions) ([]Trade, error)
	QueryClosedOrders(ctx context.Context, symbol string, since, until time.Time, lastOrderID uint64) (orders []Order, err error)
}

type ExchangeTradeService added in v1.17.0 

type ExchangeTradeService interface {
	QueryAccount(ctx context.Context) (*Account, error)

	QueryAccountBalances(ctx context.Context) (BalanceMap, error)

	SubmitOrders(ctx context.Context, orders ...SubmitOrder) (createdOrders OrderSlice, err error)

	QueryOpenOrders(ctx context.Context, symbol string) (orders []Order, err error)

	CancelOrders(ctx context.Context, orders ...Order) error
}

type ExchangeTransferService added in v1.14.0 

type ExchangeTransferService interface {
	QueryDepositHistory(ctx context.Context, asset string, since, until time.Time) (allDeposits []Deposit, err error)
	QueryWithdrawHistory(ctx context.Context, asset string, since, until time.Time) (allWithdraws []Withdraw, err error)
}

type ExchangeWithdrawalService added in v1.16.0 

type ExchangeWithdrawalService interface {
	Withdrawal(ctx context.Context, asset string, amount fixedpoint.Value, address string, options *WithdrawalOptions) error
}

type Float64Indicator added in v1.17.1 

type Float64Indicator interface {
	Last() float64
}

Float64Indicator is the indicators (SMA and EWMA) that we want to use are returning float64 data.

type Float64Slice added in v1.17.0 

type Float64Slice []float64

func (Float64Slice) Max added in v1.17.0 

func (s Float64Slice) Max() float64

func (Float64Slice) Mean added in v1.17.0 

func (s Float64Slice) Mean() (mean float64)

func (Float64Slice) Min added in v1.17.0 

func (s Float64Slice) Min() float64

func (*Float64Slice) Pop added in v1.17.0 

func (s *Float64Slice) Pop(i int64) (v float64)

func (*Float64Slice) Push added in v1.17.0 

func (s *Float64Slice) Push(v float64)

func (Float64Slice) Sum added in v1.17.0 

func (s Float64Slice) Sum() (sum float64)

func (Float64Slice) Tail added in v1.17.0 

func (s Float64Slice) Tail(size int) Float64Slice

type FundingRate added in v1.21.0 

type FundingRate struct {
	FundingRate fixedpoint.Value
	FundingTime time.Time
	Time        time.Time
}

type FuturesAccountInfo added in v1.21.0 

type FuturesAccountInfo struct {
	// Futures fields
	Assets                      map[Asset]FuturesUserAsset `json:"assets"`
	FeeTier                     int                        `json:"feeTier"`
	MaxWithdrawAmount           fixedpoint.Value           `json:"maxWithdrawAmount"`
	Positions                   FuturesPositionMap         `json:"positions"`
	TotalInitialMargin          fixedpoint.Value           `json:"totalInitialMargin"`
	TotalMaintMargin            fixedpoint.Value           `json:"totalMaintMargin"`
	TotalMarginBalance          fixedpoint.Value           `json:"totalMarginBalance"`
	TotalOpenOrderInitialMargin fixedpoint.Value           `json:"totalOpenOrderInitialMargin"`
	TotalPositionInitialMargin  fixedpoint.Value           `json:"totalPositionInitialMargin"`
	TotalUnrealizedProfit       fixedpoint.Value           `json:"totalUnrealizedProfit"`
	TotalWalletBalance          fixedpoint.Value           `json:"totalWalletBalance"`
	UpdateTime                  int64                      `json:"updateTime"`
}

type FuturesExchange added in v1.18.0 

type FuturesExchange interface {
	UseFutures()
	UseIsolatedFutures(symbol string)
	GetFuturesSettings() FuturesSettings
}

type FuturesPosition added in v1.22.0 

type FuturesPosition struct {
	Symbol        string `json:"symbol"`
	BaseCurrency  string `json:"baseCurrency"`
	QuoteCurrency string `json:"quoteCurrency"`

	Market Market `json:"market"`

	Base        fixedpoint.Value `json:"base"`
	Quote       fixedpoint.Value `json:"quote"`
	AverageCost fixedpoint.Value `json:"averageCost"`

	// ApproximateAverageCost adds the computed fee in quote in the average cost
	// This is used for calculating net profit
	ApproximateAverageCost fixedpoint.Value `json:"approximateAverageCost"`

	FeeRate          *ExchangeFee                 `json:"feeRate,omitempty"`
	ExchangeFeeRates map[ExchangeName]ExchangeFee `json:"exchangeFeeRates"`

	// Futures data fields
	Isolated     bool  `json:"isolated"`
	UpdateTime   int64 `json:"updateTime"`
	PositionRisk *PositionRisk

	sync.Mutex
}

type FuturesPositionMap added in v1.22.0 

type FuturesPositionMap map[string]FuturesPosition

type FuturesSettings added in v1.18.0 

type FuturesSettings struct {
	IsFutures             bool
	IsIsolatedFutures     bool
	IsolatedFuturesSymbol string
}

func (FuturesSettings) GetFuturesSettings added in v1.18.0 

func (s FuturesSettings) GetFuturesSettings() FuturesSettings

func (*FuturesSettings) UseFutures added in v1.18.0 

func (s *FuturesSettings) UseFutures()

func (*FuturesSettings) UseIsolatedFutures added in v1.18.5 

func (s *FuturesSettings) UseIsolatedFutures(symbol string)

type FuturesUserAsset added in v1.21.0 

type FuturesUserAsset struct {
	Asset                  string           `json:"asset"`
	InitialMargin          fixedpoint.Value `json:"initialMargin"`
	MaintMargin            fixedpoint.Value `json:"maintMargin"`
	MarginBalance          fixedpoint.Value `json:"marginBalance"`
	MaxWithdrawAmount      fixedpoint.Value `json:"maxWithdrawAmount"`
	OpenOrderInitialMargin fixedpoint.Value `json:"openOrderInitialMargin"`
	PositionInitialMargin  fixedpoint.Value `json:"positionInitialMargin"`
	UnrealizedProfit       fixedpoint.Value `json:"unrealizedProfit"`
	WalletBalance          fixedpoint.Value `json:"walletBalance"`
}

FuturesUserAsset define cross/isolated futures account asset

type Interval 

type Interval string

func (Interval) Duration 

func (i Interval) Duration() time.Duration

func (Interval) Minutes 

func (i Interval) Minutes() int

func (Interval) String 

func (i Interval) String() string

func (*Interval) UnmarshalJSON 

func (i *Interval) UnmarshalJSON(b []byte) (err error)

type IntervalSlice 

type IntervalSlice []Interval

func (IntervalSlice) StringSlice 

func (s IntervalSlice) StringSlice() (slice []string)

type IntervalWindow 

type IntervalWindow struct {
	// The interval of kline
	Interval Interval `json:"interval"`

	// The windows size of the indicator (EWMA and SMA)
	Window int `json:"window"`
}

IntervalWindow is used by the indicators

func (IntervalWindow) String added in v1.4.0 

func (iw IntervalWindow) String() string

type IsolatedMarginAccount added in v1.13.0 

type IsolatedMarginAccount struct {
	TotalAssetOfBTC     fixedpoint.Value      `json:"totalAssetOfBtc"`
	TotalLiabilityOfBTC fixedpoint.Value      `json:"totalLiabilityOfBtc"`
	TotalNetAssetOfBTC  fixedpoint.Value      `json:"totalNetAssetOfBtc"`
	Assets              []IsolatedMarginAsset `json:"assets"`
}

IsolatedMarginAccount defines isolated user assets of margin account

type IsolatedMarginAsset added in v1.13.0 

type IsolatedMarginAsset struct {
	Symbol     string            `json:"symbol"`
	QuoteAsset IsolatedUserAsset `json:"quoteAsset"`
	BaseAsset  IsolatedUserAsset `json:"baseAsset"`

	IsolatedCreated   bool             `json:"isolatedCreated"`
	MarginLevel       fixedpoint.Value `json:"marginLevel"`
	MarginLevelStatus string           `json:"marginLevelStatus"`

	MarginRatio    fixedpoint.Value `json:"marginRatio"`
	IndexPrice     fixedpoint.Value `json:"indexPrice"`
	LiquidatePrice fixedpoint.Value `json:"liquidatePrice"`
	LiquidateRate  fixedpoint.Value `json:"liquidateRate"`

	TradeEnabled bool `json:"tradeEnabled"`
}

IsolatedMarginAsset defines isolated margin asset information, like margin level, liquidation price... etc

type IsolatedUserAsset added in v1.13.0 

type IsolatedUserAsset struct {
	Asset         string           `json:"asset"`
	Borrowed      fixedpoint.Value `json:"borrowed"`
	Free          fixedpoint.Value `json:"free"`
	Interest      fixedpoint.Value `json:"interest"`
	Locked        fixedpoint.Value `json:"locked"`
	NetAsset      fixedpoint.Value `json:"netAsset"`
	NetAssetOfBtc fixedpoint.Value `json:"netAssetOfBtc"`

	BorrowEnabled bool             `json:"borrowEnabled"`
	RepayEnabled  bool             `json:"repayEnabled"`
	TotalAsset    fixedpoint.Value `json:"totalAsset"`
}

IsolatedUserAsset defines isolated user assets of the margin account

type KLine 

type KLine struct {
	GID      uint64       `json:"gid" db:"gid"`
	Exchange ExchangeName `json:"exchange" db:"exchange"`

	Symbol string `json:"symbol" db:"symbol"`

	StartTime Time `json:"startTime" db:"start_time"`
	EndTime   Time `json:"endTime" db:"end_time"`

	Interval Interval `json:"interval" db:"interval"`

	Open                     float64 `json:"open" db:"open"`
	Close                    float64 `json:"close" db:"close"`
	High                     float64 `json:"high" db:"high"`
	Low                      float64 `json:"low" db:"low"`
	Volume                   float64 `json:"volume" db:"volume"`
	QuoteVolume              float64 `json:"quoteVolume" db:"quote_volume"`
	TakerBuyBaseAssetVolume  float64 `json:"takerBuyBaseAssetVolume" db:"taker_buy_base_volume"`
	TakerBuyQuoteAssetVolume float64 `json:"takerBuyQuoteAssetVolume" db:"taker_buy_quote_volume"`

	LastTradeID    uint64 `json:"lastTradeID" db:"last_trade_id"`
	NumberOfTrades uint64 `json:"numberOfTrades" db:"num_trades"`
	Closed         bool   `json:"closed" db:"closed"`
}

KLine uses binance's kline as the standard structure

func (KLine) BounceDown 

func (k KLine) BounceDown() bool

red candle with open and close near low price

func (KLine) BounceUp 

func (k KLine) BounceUp() bool

green candle with open and close near high price

func (KLine) Color 

func (k KLine) Color() string

func (KLine) Direction added in v1.2.1 

func (k KLine) Direction() Direction

func (KLine) GetBody 

func (k KLine) GetBody() float64

GetBody returns the height of the candle real body

func (KLine) GetChange 

func (k KLine) GetChange() float64

GetChange returns Close price - Open price.

func (KLine) GetClose 

func (k KLine) GetClose() float64

func (KLine) GetEndTime 

func (k KLine) GetEndTime() Time

func (KLine) GetHigh 

func (k KLine) GetHigh() float64

func (KLine) GetInterval 

func (k KLine) GetInterval() Interval

func (KLine) GetLow 

func (k KLine) GetLow() float64

func (KLine) GetLowerShadowHeight 

func (k KLine) GetLowerShadowHeight() float64

func (KLine) GetLowerShadowRatio 

func (k KLine) GetLowerShadowRatio() float64

func (KLine) GetMaxChange 

func (k KLine) GetMaxChange() float64

func (KLine) GetOpen 

func (k KLine) GetOpen() float64

func (KLine) GetStartTime 

func (k KLine) GetStartTime() Time

func (KLine) GetThickness 

func (k KLine) GetThickness() float64

GetThickness returns the thickness of the kline. 1 => thick, 0.1 => thin

func (KLine) GetUpperShadowHeight 

func (k KLine) GetUpperShadowHeight() float64

func (KLine) GetUpperShadowRatio 

func (k KLine) GetUpperShadowRatio() float64

func (KLine) Mid 

func (k KLine) Mid() float64

func (KLine) PlainText added in v1.18.0 

func (k KLine) PlainText() string

func (KLine) SlackAttachment 

func (k KLine) SlackAttachment() slack.Attachment

func (KLine) String 

func (k KLine) String() string

type KLineCallback 

type KLineCallback func(kline KLine)

type KLineOrWindow 

type KLineOrWindow interface {
	GetInterval() string
	Direction() Direction
	GetChange() float64
	GetMaxChange() float64
	GetThickness() float64

	Mid() float64
	GetOpen() float64
	GetClose() float64
	GetHigh() float64
	GetLow() float64

	BounceUp() bool
	BounceDown() bool
	GetUpperShadowRatio() float64
	GetLowerShadowRatio() float64

	SlackAttachment() slack.Attachment
}

type KLineQueryOptions 

type KLineQueryOptions struct {
	Limit     int
	StartTime *time.Time
	EndTime   *time.Time
}

type KLineWindow 

type KLineWindow []KLine

func (*KLineWindow) Add 

func (k *KLineWindow) Add(line KLine)

func (KLineWindow) AllDrop 

func (k KLineWindow) AllDrop() bool

func (KLineWindow) AllRise 

func (k KLineWindow) AllRise() bool

func (KLineWindow) BounceDown 

func (k KLineWindow) BounceDown() bool

BounceDown returns true red candle with open and close near low price

func (KLineWindow) BounceUp 

func (k KLineWindow) BounceUp() bool

BounceUp returns true if it's green candle with open and close near high price

func (KLineWindow) Color 

func (k KLineWindow) Color() string

func (KLineWindow) First 

func (k KLineWindow) First() KLine

func (KLineWindow) GetBody 

func (k KLineWindow) GetBody() float64

func (KLineWindow) GetChange 

func (k KLineWindow) GetChange() float64

func (KLineWindow) GetClose 

func (k KLineWindow) GetClose() float64

func (KLineWindow) GetHigh 

func (k KLineWindow) GetHigh() float64

func (KLineWindow) GetInterval 

func (k KLineWindow) GetInterval() Interval

func (KLineWindow) GetLow 

func (k KLineWindow) GetLow() float64

func (KLineWindow) GetLowerShadowHeight 

func (k KLineWindow) GetLowerShadowHeight() float64

func (KLineWindow) GetLowerShadowRatio 

func (k KLineWindow) GetLowerShadowRatio() float64

func (KLineWindow) GetMaxChange 

func (k KLineWindow) GetMaxChange() float64

func (KLineWindow) GetOpen 

func (k KLineWindow) GetOpen() float64

func (KLineWindow) GetThickness 

func (k KLineWindow) GetThickness() float64

func (KLineWindow) GetTrend 

func (k KLineWindow) GetTrend() int

func (KLineWindow) GetUpperShadowHeight 

func (k KLineWindow) GetUpperShadowHeight() float64

func (KLineWindow) GetUpperShadowRatio 

func (k KLineWindow) GetUpperShadowRatio() float64

func (KLineWindow) Last 

func (k KLineWindow) Last() KLine

func (KLineWindow) Len 

func (k KLineWindow) Len() int

func (KLineWindow) Mid 

func (k KLineWindow) Mid() float64

Mid price

func (KLineWindow) ReduceClose 

func (k KLineWindow) ReduceClose() float64

ReduceClose reduces the closed prices

func (KLineWindow) SlackAttachment 

func (k KLineWindow) SlackAttachment() slack.Attachment

func (KLineWindow) Tail 

func (k KLineWindow) Tail(size int) KLineWindow

func (KLineWindow) Take 

func (k KLineWindow) Take(size int) KLineWindow

func (*KLineWindow) Truncate 

func (k *KLineWindow) Truncate(size int)

Truncate removes the old klines from the window

type MarginAccount added in v1.13.0 

type MarginAccount struct {
	BorrowEnabled       bool              `json:"borrowEnabled"`
	MarginLevel         fixedpoint.Value  `json:"marginLevel"`
	TotalAssetOfBTC     fixedpoint.Value  `json:"totalAssetOfBtc"`
	TotalLiabilityOfBTC fixedpoint.Value  `json:"totalLiabilityOfBtc"`
	TotalNetAssetOfBTC  fixedpoint.Value  `json:"totalNetAssetOfBtc"`
	TradeEnabled        bool              `json:"tradeEnabled"`
	TransferEnabled     bool              `json:"transferEnabled"`
	UserAssets          []MarginUserAsset `json:"userAssets"`
}

MarginAccount is for the cross margin account

type MarginExchange added in v1.8.0 

type MarginExchange interface {
	UseMargin()
	UseIsolatedMargin(symbol string)
	GetMarginSettings() MarginSettings
}

type MarginOrderSideEffectType added in v1.8.0 

type MarginOrderSideEffectType string

MarginOrderSideEffectType define side effect type for orders 

var (
	SideEffectTypeNoSideEffect MarginOrderSideEffectType = "NO_SIDE_EFFECT"
	SideEffectTypeMarginBuy    MarginOrderSideEffectType = "MARGIN_BUY"
	SideEffectTypeAutoRepay    MarginOrderSideEffectType = "AUTO_REPAY"
)

func (*MarginOrderSideEffectType) UnmarshalJSON added in v1.11.0 

func (t *MarginOrderSideEffectType) UnmarshalJSON(data []byte) error

type MarginSettings added in v1.8.0 

type MarginSettings struct {
	IsMargin             bool
	IsIsolatedMargin     bool
	IsolatedMarginSymbol string
}

func (MarginSettings) GetMarginSettings added in v1.8.0 

func (e MarginSettings) GetMarginSettings() MarginSettings

func (*MarginSettings) UseIsolatedMargin added in v1.8.0 

func (e *MarginSettings) UseIsolatedMargin(symbol string)

func (*MarginSettings) UseMargin added in v1.8.0 

func (e *MarginSettings) UseMargin()

type MarginUserAsset added in v1.13.0 

type MarginUserAsset struct {
	Asset    string           `json:"asset"`
	Borrowed fixedpoint.Value `json:"borrowed"`
	Free     fixedpoint.Value `json:"free"`
	Interest fixedpoint.Value `json:"interest"`
	Locked   fixedpoint.Value `json:"locked"`
	NetAsset fixedpoint.Value `json:"netAsset"`
}

MarginUserAsset define user assets of margin account

type Market 

type Market struct {
	Symbol string `json:"symbol"`

	// LocalSymbol is used for exchange's API (exchange package internal)
	LocalSymbol string `json:"localSymbol,omitempty"`

	// PricePrecision is the precision used for formatting price, 8 = 8 decimals
	// can be converted from price tick step size, e.g.
	//    int(math.Log10(price step size))
	PricePrecision int `json:"pricePrecision"`

	// VolumePrecision is the precision used for formatting quantity and volume, 8 = 8 decimals
	// can be converted from step size, e.g.
	//    int(math.Log10(quantity step size))
	VolumePrecision int `json:"volumePrecision"`

	// QuoteCurrency is the currency name for quote, e.g. USDT in BTC/USDT, USDC in BTC/USDC
	QuoteCurrency string `json:"quoteCurrency"`

	// BaseCurrency is the current name for base, e.g. BTC in BTC/USDT, ETH in ETH/USDC
	BaseCurrency string `json:"baseCurrency"`

	// The MIN_NOTIONAL filter defines the minimum notional value allowed for an order on a symbol.
	// An order's notional value is the price * quantity
	MinNotional float64 `json:"minNotional,omitempty"`
	MinAmount   float64 `json:"minAmount,omitempty"`

	// The LOT_SIZE filter defines the quantity
	MinQuantity float64 `json:"minQuantity,omitempty"`

	// MaxQuantity is currently not used in the code
	MaxQuantity float64 `json:"maxQuantity,omitempty"`

	// StepSize is the step size of quantity
	// can be converted from precision, e.g.
	//    1.0 / math.Pow10(m.BaseUnitPrecision)
	StepSize float64 `json:"stepSize,omitempty"`

	MinPrice float64 `json:"minPrice,omitempty"`
	MaxPrice float64 `json:"maxPrice,omitempty"`

	// TickSize is the step size of price
	TickSize float64 `json:"tickSize,omitempty"`
}

func (Market) BaseCurrencyFormatter added in v1.18.0 

func (m Market) BaseCurrencyFormatter() *accounting.Accounting

func (Market) CanonicalizeVolume 

func (m Market) CanonicalizeVolume(val float64) float64

func (Market) FormatPrice 

func (m Market) FormatPrice(val float64) string

func (Market) FormatPriceCurrency 

func (m Market) FormatPriceCurrency(val float64) string

func (Market) FormatQuantity 

func (m Market) FormatQuantity(val float64) string

func (Market) FormatVolume 

func (m Market) FormatVolume(val float64) string

func (Market) QuoteCurrencyFormatter added in v1.18.0 

func (m Market) QuoteCurrencyFormatter() *accounting.Accounting

func (Market) TruncateQuantity added in v1.21.0 

func (m Market) TruncateQuantity(quantity fixedpoint.Value) fixedpoint.Value

TruncateQuantity uses the step size to truncate floating number, in order to avoid the rounding issue

type MarketMap 

type MarketMap map[string]Market

func (MarketMap) Add added in v1.21.0 

func (m MarketMap) Add(market Market)

type MillisecondTimestamp added in v1.17.0 

type MillisecondTimestamp time.Time

func MustParseMillisecondTimestamp added in v1.21.0 

func MustParseMillisecondTimestamp(a string) MillisecondTimestamp

func NewMillisecondTimestampFromInt added in v1.21.0 

func NewMillisecondTimestampFromInt(i int64) MillisecondTimestamp

func (MillisecondTimestamp) String added in v1.17.0 

func (t MillisecondTimestamp) String() string

func (MillisecondTimestamp) Time added in v1.17.0 

func (t MillisecondTimestamp) Time() time.Time

func (*MillisecondTimestamp) UnmarshalJSON added in v1.17.0 

func (t *MillisecondTimestamp) UnmarshalJSON(data []byte) error

type MutexOrderBook 

type MutexOrderBook struct {
	sync.Mutex

	Symbol    string
	OrderBook OrderBook
}

func NewMutexOrderBook 

func NewMutexOrderBook(symbol string) *MutexOrderBook

func (*MutexOrderBook) BestAsk added in v1.17.0 

func (b *MutexOrderBook) BestAsk() (pv PriceVolume, ok bool)

func (*MutexOrderBook) BestBid added in v1.17.0 

func (b *MutexOrderBook) BestBid() (pv PriceVolume, ok bool)

func (*MutexOrderBook) BestBidAndAsk added in v1.17.0 

func (b *MutexOrderBook) BestBidAndAsk() (bid, ask PriceVolume, ok bool)

func (*MutexOrderBook) Copy added in v1.17.0 

func (b *MutexOrderBook) Copy() OrderBook

func (*MutexOrderBook) CopyDepth added in v1.17.0 

func (b *MutexOrderBook) CopyDepth(depth int) OrderBook

func (*MutexOrderBook) IsValid added in v1.17.0 

func (b *MutexOrderBook) IsValid() (ok bool, err error)

func (*MutexOrderBook) LastUpdateTime added in v1.25.4 

func (b *MutexOrderBook) LastUpdateTime() time.Time

func (*MutexOrderBook) Load 

func (b *MutexOrderBook) Load(book SliceOrderBook)

func (*MutexOrderBook) Reset added in v1.11.0 

func (b *MutexOrderBook) Reset()

func (*MutexOrderBook) Update 

func (b *MutexOrderBook) Update(update SliceOrderBook)

type NanosecondTimestamp added in v1.21.3 

type NanosecondTimestamp time.Time

func (NanosecondTimestamp) Time added in v1.21.3 

func (t NanosecondTimestamp) Time() time.Time

func (*NanosecondTimestamp) UnmarshalJSON added in v1.21.3 

func (t *NanosecondTimestamp) UnmarshalJSON(data []byte) error

type Order 

type Order struct {
	SubmitOrder

	Exchange ExchangeName `json:"exchange" db:"exchange"`

	// GID is used for relational database storage, it's an incremental ID
	GID     uint64 `json:"gid" db:"gid"`
	OrderID uint64 `json:"orderID" db:"order_id"` // order id
	UUID    string `json:"uuid,omitempty"`

	Status           OrderStatus `json:"status" db:"status"`
	ExecutedQuantity float64     `json:"executedQuantity" db:"executed_quantity"`
	IsWorking        bool        `json:"isWorking" db:"is_working"`
	CreationTime     Time        `json:"creationTime" db:"created_at"`
	UpdateTime       Time        `json:"updateTime" db:"updated_at"`

	IsMargin   bool `json:"isMargin" db:"is_margin"`
	IsIsolated bool `json:"isIsolated" db:"is_isolated"`
}

func (Order) Backup added in v1.14.0 

func (o Order) Backup() SubmitOrder

Backup backs up the current order quantity to a SubmitOrder object so that we can post the order later when we want to restore the orders.

func (Order) PlainText added in v1.4.0 

func (o Order) PlainText() string

PlainText is used for telegram-styled messages

func (Order) SlackAttachment added in v1.17.0 

func (o Order) SlackAttachment() slack.Attachment

func (Order) String 

func (o Order) String() string

type OrderBook 

type OrderBook interface {
	Spread() (fixedpoint.Value, bool)
	BestAsk() (PriceVolume, bool)
	BestBid() (PriceVolume, bool)
	LastUpdateTime() time.Time
	Reset()
	Load(book SliceOrderBook)
	Update(book SliceOrderBook)
	Copy() OrderBook
	SideBook(sideType SideType) PriceVolumeSlice
	CopyDepth(depth int) OrderBook
	IsValid() (bool, error)
}

type OrderError added in v1.25.3 

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

func (*OrderError) Error added in v1.25.3 

func (e *OrderError) Error() string

func (*OrderError) Order added in v1.25.3 

func (e *OrderError) Order() Order

type OrderMap 

type OrderMap map[uint64]Order

OrderMap is used for storing orders by their order id

func (OrderMap) Add 

func (m OrderMap) Add(o Order)

func (OrderMap) Backup added in v1.14.0 

func (m OrderMap) Backup() (orderForms []SubmitOrder)

func (OrderMap) Canceled 

func (m OrderMap) Canceled() OrderSlice

func (OrderMap) Exists 

func (m OrderMap) Exists(orderID uint64) bool

func (OrderMap) Filled 

func (m OrderMap) Filled() OrderSlice

func (OrderMap) FindByStatus 

func (m OrderMap) FindByStatus(status OrderStatus) (orders OrderSlice)

func (OrderMap) IDs 

func (m OrderMap) IDs() (ids []uint64)

func (OrderMap) Orders 

func (m OrderMap) Orders() (orders OrderSlice)

func (OrderMap) Remove added in v1.1.0 

func (m OrderMap) Remove(orderID uint64)

func (OrderMap) Update 

func (m OrderMap) Update(o Order)

Update only updates the order when the order exists in the map

type OrderSlice 

type OrderSlice []Order

func (OrderSlice) IDs 

func (s OrderSlice) IDs() (ids []uint64)

type OrderStatus 

type OrderStatus string
const (
	// OrderStatusNew means the order is active on the orderbook without any filling.
	OrderStatusNew OrderStatus = "NEW"

	// OrderStatusFilled means the order is fully-filled, it's an end state.
	OrderStatusFilled OrderStatus = "FILLED"

	// OrderStatusPartiallyFilled means the order is partially-filled, it's an end state, the order might be canceled in the end.
	OrderStatusPartiallyFilled OrderStatus = "PARTIALLY_FILLED"

	// OrderStatusCanceled means the order is canceled without partially filled or filled.
	OrderStatusCanceled OrderStatus = "CANCELED"

	// OrderStatusRejected means the order is not placed successfully, it's rejected by the api
	OrderStatusRejected OrderStatus = "REJECTED"
)

type OrderType 

type OrderType string

OrderType define order type 

const (
	OrderTypeLimit      OrderType = "LIMIT"
	OrderTypeLimitMaker OrderType = "LIMIT_MAKER"
	OrderTypeMarket     OrderType = "MARKET"
	OrderTypeStopLimit  OrderType = "STOP_LIMIT"
	OrderTypeStopMarket OrderType = "STOP_MARKET"
	OrderTypeIOCLimit   OrderType = "IOC_LIMIT"
)

type Parser added in v1.23.0 

type Parser func(message []byte) (interface{}, error)

type PlainText added in v1.4.0 

type PlainText interface {
	PlainText() string
}

type Position added in v1.21.0 

type Position struct {
	Symbol        string `json:"symbol"`
	BaseCurrency  string `json:"baseCurrency"`
	QuoteCurrency string `json:"quoteCurrency"`

	Market Market `json:"market"`

	Base        fixedpoint.Value `json:"base"`
	Quote       fixedpoint.Value `json:"quote"`
	AverageCost fixedpoint.Value `json:"averageCost"`

	// ApproximateAverageCost adds the computed fee in quote in the average cost
	// This is used for calculating net profit
	ApproximateAverageCost fixedpoint.Value `json:"approximateAverageCost"`

	FeeRate          *ExchangeFee                 `json:"feeRate,omitempty"`
	ExchangeFeeRates map[ExchangeName]ExchangeFee `json:"exchangeFeeRates"`

	// TotalFee stores the fee currency -> total fee quantity
	TotalFee map[string]fixedpoint.Value `json:"totalFee"`

	sync.Mutex
}

func NewPosition added in v1.21.0 

func NewPosition(symbol, base, quote string) *Position

func NewPositionFromMarket added in v1.21.0 

func NewPositionFromMarket(market Market) *Position

func (*Position) AddTrade added in v1.21.0 

func (p *Position) AddTrade(td Trade) (profit fixedpoint.Value, netProfit fixedpoint.Value, madeProfit bool)

func (*Position) AddTrades added in v1.21.0 

func (p *Position) AddTrades(trades []Trade) (fixedpoint.Value, fixedpoint.Value, bool)

func (*Position) BindStream added in v1.21.0 

func (p *Position) BindStream(stream Stream)

func (*Position) GetBase added in v1.24.0 

func (p *Position) GetBase() (base fixedpoint.Value)

func (*Position) PlainText added in v1.21.0 

func (p *Position) PlainText() (msg string)

func (*Position) Reset added in v1.21.0 

func (p *Position) Reset()

func (*Position) SetExchangeFeeRate added in v1.21.0 

func (p *Position) SetExchangeFeeRate(ex ExchangeName, exchangeFee ExchangeFee)

func (*Position) SetFeeRate added in v1.21.0 

func (p *Position) SetFeeRate(exchangeFee ExchangeFee)

func (*Position) SlackAttachment added in v1.21.0 

func (p *Position) SlackAttachment() slack.Attachment

func (*Position) String added in v1.21.0 

func (p *Position) String() string

func (*Position) Type added in v1.24.0 

func (p *Position) Type() PositionType

type PositionMap added in v1.21.0 

type PositionMap map[string]Position

type PositionRisk added in v1.21.0 

type PositionRisk struct {
	Leverage         fixedpoint.Value `json:"leverage"`
	LiquidationPrice fixedpoint.Value `json:"liquidationPrice"`
}

type PositionType added in v1.24.0 

type PositionType string

type PremiumIndex added in v1.21.0 

type PremiumIndex struct {
	Symbol          string           `json:"symbol"`
	MarkPrice       fixedpoint.Value `json:"markPrice"`
	LastFundingRate fixedpoint.Value `json:"lastFundingRate"`
	NextFundingTime time.Time        `json:"nextFundingTime"`
	Time            time.Time        `json:"time"`
}

type PriceHeartBeat added in v1.25.4 

type PriceHeartBeat struct {
	PriceVolume PriceVolume
	LastTime    time.Time
}

PriceHeartBeat is used for monitoring the price volume update.

func (*PriceHeartBeat) Update added in v1.25.4 

func (b *PriceHeartBeat) Update(pv PriceVolume, timeout time.Duration) (bool, error)

Update updates the price volume object and the last update time It returns (bool, error), when the price is successfully updated, it returns true. If the price is not updated (same price) and the last time exceeded the timeout, Then false, and an error will be returned

type PriceVolume 

type PriceVolume struct {
	Price, Volume fixedpoint.Value
}

func (PriceVolume) String 

func (p PriceVolume) String() string

type PriceVolumeSlice 

type PriceVolumeSlice []PriceVolume

func ParsePriceVolumeSliceJSON added in v1.21.0 

func ParsePriceVolumeSliceJSON(b []byte) (slice PriceVolumeSlice, err error)

ParsePriceVolumeSliceJSON tries to parse a 2 dimensional string array into a PriceVolumeSlice 

[["9000", "10"], ["9900", "10"], ... ]

func (PriceVolumeSlice) Copy 

func (slice PriceVolumeSlice) Copy() PriceVolumeSlice

func (PriceVolumeSlice) CopyDepth added in v1.17.0 

func (slice PriceVolumeSlice) CopyDepth(depth int) PriceVolumeSlice

func (PriceVolumeSlice) Find 

func (slice PriceVolumeSlice) Find(price fixedpoint.Value, descending bool) (pv PriceVolume, idx int)

Find finds the pair by the given price, this function is a read-only operation, so we use the value receiver to avoid copy value from the pointer If the price is not found, it will return the index where the price can be inserted at. true for descending (bid orders), false for ascending (ask orders)

func (PriceVolumeSlice) First 

func (slice PriceVolumeSlice) First() (PriceVolume, bool)

func (PriceVolumeSlice) IndexByVolumeDepth 

func (slice PriceVolumeSlice) IndexByVolumeDepth(requiredVolume fixedpoint.Value) int

func (PriceVolumeSlice) InsertAt 

func (slice PriceVolumeSlice) InsertAt(idx int, pv PriceVolume) PriceVolumeSlice

func (PriceVolumeSlice) Len 

func (slice PriceVolumeSlice) Len() int

func (PriceVolumeSlice) Less 

func (slice PriceVolumeSlice) Less(i, j int) bool

func (PriceVolumeSlice) Remove 

func (slice PriceVolumeSlice) Remove(price fixedpoint.Value, descending bool) PriceVolumeSlice

func (PriceVolumeSlice) Second added in v1.17.0 

func (slice PriceVolumeSlice) Second() (PriceVolume, bool)

func (PriceVolumeSlice) Swap 

func (slice PriceVolumeSlice) Swap(i, j int)

func (PriceVolumeSlice) Trim 

func (slice PriceVolumeSlice) Trim() (pvs PriceVolumeSlice)

Trim removes the pairs that volume = 0

func (*PriceVolumeSlice) UnmarshalJSON added in v1.21.0 

func (slice *PriceVolumeSlice) UnmarshalJSON(b []byte) error

func (PriceVolumeSlice) Upsert 

func (slice PriceVolumeSlice) Upsert(pv PriceVolume, descending bool) PriceVolumeSlice

type RBNode added in v1.17.0 

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

RBNode A red node always has black children. A black node may have red or black children

type RBTOrderBook added in v1.17.0 

type RBTOrderBook struct {
	Symbol string
	Bids   *RBTree
	Asks   *RBTree
	// contains filtered or unexported fields
}

func NewRBOrderBook added in v1.17.0 

func NewRBOrderBook(symbol string) *RBTOrderBook

func (*RBTOrderBook) BestAsk added in v1.17.0 

func (b *RBTOrderBook) BestAsk() (PriceVolume, bool)

func (*RBTOrderBook) BestBid added in v1.17.0 

func (b *RBTOrderBook) BestBid() (PriceVolume, bool)

func (*RBTOrderBook) Copy added in v1.17.0 

func (b *RBTOrderBook) Copy() OrderBook

func (*RBTOrderBook) CopyDepth added in v1.17.0 

func (b *RBTOrderBook) CopyDepth(limit int) OrderBook

func (*RBTOrderBook) EmitLoad added in v1.17.0 

func (b *RBTOrderBook) EmitLoad(book *RBTOrderBook)

func (*RBTOrderBook) EmitUpdate added in v1.17.0 

func (b *RBTOrderBook) EmitUpdate(book *RBTOrderBook)

func (*RBTOrderBook) IsValid added in v1.17.0 

func (b *RBTOrderBook) IsValid() (bool, error)

func (*RBTOrderBook) LastUpdateTime added in v1.25.4 

func (b *RBTOrderBook) LastUpdateTime() time.Time

func (*RBTOrderBook) Load added in v1.17.0 

func (b *RBTOrderBook) Load(book SliceOrderBook)

func (*RBTOrderBook) OnLoad added in v1.17.0 

func (b *RBTOrderBook) OnLoad(cb func(book *RBTOrderBook))

func (*RBTOrderBook) OnUpdate added in v1.17.0 

func (b *RBTOrderBook) OnUpdate(cb func(book *RBTOrderBook))

func (*RBTOrderBook) Print added in v1.17.0 

func (b *RBTOrderBook) Print()

func (*RBTOrderBook) Reset added in v1.17.0 

func (b *RBTOrderBook) Reset()

func (*RBTOrderBook) SideBook added in v1.17.0 

func (b *RBTOrderBook) SideBook(sideType SideType) PriceVolumeSlice

func (*RBTOrderBook) Spread added in v1.17.0 

func (b *RBTOrderBook) Spread() (fixedpoint.Value, bool)

func (*RBTOrderBook) Update added in v1.17.0 

func (b *RBTOrderBook) Update(book SliceOrderBook)

type RBTree added in v1.17.0 

type RBTree struct {
	Root *RBNode
	// contains filtered or unexported fields
}

func NewRBTree added in v1.17.0 

func NewRBTree() *RBTree

func (*RBTree) CopyInorder added in v1.17.0 

func (tree *RBTree) CopyInorder(limit int) *RBTree

func (*RBTree) CopyInorderReverse added in v1.17.0 

func (tree *RBTree) CopyInorderReverse(limit int) *RBTree

func (*RBTree) Delete added in v1.17.0 

func (tree *RBTree) Delete(key fixedpoint.Value) bool

func (*RBTree) DeleteFixup added in v1.17.0 

func (tree *RBTree) DeleteFixup(current *RBNode)

func (*RBTree) Inorder added in v1.17.0 

func (tree *RBTree) Inorder(cb func(n *RBNode) bool)

Inorder traverses the tree in ascending order

func (*RBTree) InorderOf added in v1.17.0 

func (tree *RBTree) InorderOf(current *RBNode, cb func(n *RBNode) bool)

func (*RBTree) InorderReverse added in v1.17.0 

func (tree *RBTree) InorderReverse(cb func(n *RBNode) bool)

InorderReverse traverses the tree in descending order

func (*RBTree) InorderReverseOf added in v1.17.0 

func (tree *RBTree) InorderReverseOf(current *RBNode, cb func(n *RBNode) bool)

func (*RBTree) Insert added in v1.17.0 

func (tree *RBTree) Insert(key, val fixedpoint.Value)

func (*RBTree) InsertFixup added in v1.17.0 

func (tree *RBTree) InsertFixup(current *RBNode)

func (*RBTree) Leftmost added in v1.17.0 

func (tree *RBTree) Leftmost() *RBNode

func (*RBTree) LeftmostOf added in v1.17.0 

func (tree *RBTree) LeftmostOf(current *RBNode) *RBNode

func (*RBTree) Postorder added in v1.17.0 

func (tree *RBTree) Postorder(cb func(n *RBNode) bool)

func (*RBTree) PostorderOf added in v1.17.0 

func (tree *RBTree) PostorderOf(current *RBNode, cb func(n *RBNode) bool)

func (*RBTree) Preorder added in v1.17.0 

func (tree *RBTree) Preorder(cb func(n *RBNode))

func (*RBTree) PreorderOf added in v1.17.0 

func (tree *RBTree) PreorderOf(current *RBNode, cb func(n *RBNode))

func (*RBTree) Print added in v1.17.0 

func (tree *RBTree) Print()

func (*RBTree) Rightmost added in v1.17.0 

func (tree *RBTree) Rightmost() *RBNode

func (*RBTree) RightmostOf added in v1.17.0 

func (tree *RBTree) RightmostOf(current *RBNode) *RBNode

func (*RBTree) RotateLeft added in v1.17.0 

func (tree *RBTree) RotateLeft(x *RBNode)

RotateLeft x is the axes of rotation, y is the node that will be replace x's position. we need to: 1. move y's left child to the x's right child 2. change y's parent to x's parent 3. change x's parent to y

func (*RBTree) RotateRight added in v1.17.0 

func (tree *RBTree) RotateRight(y *RBNode)

func (*RBTree) Search added in v1.17.0 

func (tree *RBTree) Search(key fixedpoint.Value) *RBNode

func (*RBTree) Size added in v1.17.0 

func (tree *RBTree) Size() int

func (*RBTree) Successor added in v1.17.0 

func (tree *RBTree) Successor(current *RBNode) *RBNode

func (*RBTree) Upsert added in v1.17.0 

func (tree *RBTree) Upsert(key, val fixedpoint.Value)

type Reward added in v1.13.0 

type Reward struct {
	GID      int64            `json:"gid" db:"gid"`
	UUID     string           `json:"uuid" db:"uuid"`
	Exchange ExchangeName     `json:"exchange" db:"exchange"`
	Type     RewardType       `json:"reward_type" db:"reward_type"`
	Currency string           `json:"currency" db:"currency"`
	Quantity fixedpoint.Value `json:"quantity" db:"quantity"`
	State    string           `json:"state" db:"state"`
	Note     string           `json:"note" db:"note"`
	Spent    bool             `json:"spent" db:"spent"`

	// Unix timestamp in seconds
	CreatedAt Time `json:"created_at" db:"created_at"`
}

type RewardSlice added in v1.13.0 

type RewardSlice []Reward

func (RewardSlice) Len added in v1.13.0 

func (s RewardSlice) Len() int

func (RewardSlice) Swap added in v1.13.0 

func (s RewardSlice) Swap(i, j int)

type RewardSliceByCreationTime added in v1.13.0 

type RewardSliceByCreationTime RewardSlice

func (RewardSliceByCreationTime) Len added in v1.13.0 

func (s RewardSliceByCreationTime) Len() int

func (RewardSliceByCreationTime) Less added in v1.13.0 

func (s RewardSliceByCreationTime) Less(i, j int) bool

Less reports whether x[i] should be ordered before x[j]

func (RewardSliceByCreationTime) Swap added in v1.13.0 

func (s RewardSliceByCreationTime) Swap(i, j int)

type RewardType added in v1.13.0 

type RewardType string

type SideType 

type SideType string

SideType define side type of order

func StrToSideType added in v1.17.0 

func StrToSideType(s string) (side SideType, err error)

func (SideType) Color 

func (side SideType) Color() string

func (SideType) Reverse 

func (side SideType) Reverse() SideType

func (SideType) String added in v1.17.0 

func (side SideType) String() string

func (*SideType) UnmarshalJSON added in v1.14.0 

func (side *SideType) UnmarshalJSON(data []byte) error

type SliceOrderBook added in v1.17.0 

type SliceOrderBook struct {
	Symbol string
	Bids   PriceVolumeSlice
	Asks   PriceVolumeSlice
	// contains filtered or unexported fields
}

SliceOrderBook is a general order book structure which could be used for RESTful responses and websocket stream parsing

func NewSliceOrderBook added in v1.17.0 

func NewSliceOrderBook(symbol string) *SliceOrderBook

func (*SliceOrderBook) BestAsk added in v1.17.0 

func (b *SliceOrderBook) BestAsk() (PriceVolume, bool)

func (*SliceOrderBook) BestBid added in v1.17.0 

func (b *SliceOrderBook) BestBid() (PriceVolume, bool)

func (*SliceOrderBook) Copy added in v1.17.0 

func (b *SliceOrderBook) Copy() OrderBook

func (*SliceOrderBook) CopyDepth added in v1.17.0 

func (b *SliceOrderBook) CopyDepth(limit int) OrderBook

func (*SliceOrderBook) EmitLoad added in v1.17.0 

func (b *SliceOrderBook) EmitLoad(book *SliceOrderBook)

func (*SliceOrderBook) EmitUpdate added in v1.17.0 

func (b *SliceOrderBook) EmitUpdate(book *SliceOrderBook)

func (*SliceOrderBook) IsValid added in v1.17.0 

func (b *SliceOrderBook) IsValid() (bool, error)

func (*SliceOrderBook) LastUpdateTime added in v1.25.4 

func (b *SliceOrderBook) LastUpdateTime() time.Time

func (*SliceOrderBook) Load added in v1.17.0 

func (b *SliceOrderBook) Load(book SliceOrderBook)

func (*SliceOrderBook) OnLoad added in v1.17.0 

func (b *SliceOrderBook) OnLoad(cb func(book *SliceOrderBook))

func (*SliceOrderBook) OnUpdate added in v1.17.0 

func (b *SliceOrderBook) OnUpdate(cb func(book *SliceOrderBook))

func (*SliceOrderBook) PriceVolumesBySide added in v1.17.0 

func (b *SliceOrderBook) PriceVolumesBySide(side SideType) PriceVolumeSlice

func (*SliceOrderBook) Print added in v1.17.0 

func (b *SliceOrderBook) Print()

func (*SliceOrderBook) Reset added in v1.17.0 

func (b *SliceOrderBook) Reset()

func (*SliceOrderBook) SideBook added in v1.17.0 

func (b *SliceOrderBook) SideBook(sideType SideType) PriceVolumeSlice

func (*SliceOrderBook) Spread added in v1.17.0 

func (b *SliceOrderBook) Spread() (fixedpoint.Value, bool)

func (*SliceOrderBook) String added in v1.17.0 

func (b *SliceOrderBook) String() string

func (*SliceOrderBook) Update added in v1.17.0 

func (b *SliceOrderBook) Update(book SliceOrderBook)

type Speed added in v1.25.4 

type Speed string
const (
	SpeedHigh   Speed = "HIGH"
	SpeedMedium Speed = "MEDIUM"
	SpeedLow    Speed = "LOW"
)

type StandardStream 

type StandardStream struct {

	// Conn is the websocket connection
	Conn *websocket.Conn

	// ConnCtx is the context of the current websocket connection
	ConnCtx context.Context

	// ConnCancel is the cancel funcion of the current websocket connection
	ConnCancel context.CancelFunc

	// ConnLock is used for locking Conn, ConnCtx and ConnCancel fields.
	// When changing these field values, be sure to call ConnLock
	ConnLock sync.Mutex

	PublicOnly bool

	// ReconnectC is a signal channel for reconnecting
	ReconnectC chan struct{}

	// CloseC is a signal channel for closing stream
	CloseC chan struct{}

	Subscriptions []Subscription

	// Futures
	FuturesPositionUpdateCallbacks []func(futuresPositions FuturesPositionMap)

	FuturesPositionSnapshotCallbacks []func(futuresPositions FuturesPositionMap)
	// contains filtered or unexported fields
}

func NewStandardStream added in v1.23.0 

func NewStandardStream() StandardStream

func (*StandardStream) Close added in v1.23.0 

func (s *StandardStream) Close() error

func (*StandardStream) Connect added in v1.23.0 

func (s *StandardStream) Connect(ctx context.Context) error

Connect starts the stream and create the websocket connection

func (*StandardStream) Dial added in v1.17.0 

func (s *StandardStream) Dial(ctx context.Context, args ...string) (*websocket.Conn, error)

func (*StandardStream) DialAndConnect added in v1.23.0 

func (s *StandardStream) DialAndConnect(ctx context.Context) error

func (*StandardStream) EmitBalanceSnapshot 

func (s *StandardStream) EmitBalanceSnapshot(balances BalanceMap)

func (*StandardStream) EmitBalanceUpdate 

func (s *StandardStream) EmitBalanceUpdate(balances BalanceMap)

func (*StandardStream) EmitBookSnapshot 

func (s *StandardStream) EmitBookSnapshot(book SliceOrderBook)

func (*StandardStream) EmitBookTickerUpdate added in v1.21.0 

func (s *StandardStream) EmitBookTickerUpdate(bookTicker BookTicker)

func (*StandardStream) EmitBookUpdate 

func (s *StandardStream) EmitBookUpdate(book SliceOrderBook)

func (*StandardStream) EmitConnect 

func (s *StandardStream) EmitConnect()

func (*StandardStream) EmitDisconnect added in v1.14.0 

func (s *StandardStream) EmitDisconnect()

func (*StandardStream) EmitFuturesPositionSnapshot added in v1.22.0 

func (s *StandardStream) EmitFuturesPositionSnapshot(futuresPositions FuturesPositionMap)

func (*StandardStream) EmitFuturesPositionUpdate added in v1.22.0 

func (s *StandardStream) EmitFuturesPositionUpdate(futuresPositions FuturesPositionMap)

func (*StandardStream) EmitKLine 

func (s *StandardStream) EmitKLine(kline KLine)

func (*StandardStream) EmitKLineClosed 

func (s *StandardStream) EmitKLineClosed(kline KLine)

func (*StandardStream) EmitOrderUpdate 

func (s *StandardStream) EmitOrderUpdate(order Order)

func (*StandardStream) EmitStart added in v1.14.0 

func (s *StandardStream) EmitStart()

func (*StandardStream) EmitTradeUpdate 

func (s *StandardStream) EmitTradeUpdate(trade Trade)

func (*StandardStream) OnBalanceSnapshot 

func (s *StandardStream) OnBalanceSnapshot(cb func(balances BalanceMap))

func (*StandardStream) OnBalanceUpdate 

func (s *StandardStream) OnBalanceUpdate(cb func(balances BalanceMap))

func (*StandardStream) OnBookSnapshot 

func (s *StandardStream) OnBookSnapshot(cb func(book SliceOrderBook))

func (*StandardStream) OnBookTickerUpdate added in v1.21.0 

func (s *StandardStream) OnBookTickerUpdate(cb func(bookTicker BookTicker))

func (*StandardStream) OnBookUpdate 

func (s *StandardStream) OnBookUpdate(cb func(book SliceOrderBook))

func (*StandardStream) OnConnect 

func (s *StandardStream) OnConnect(cb func())

func (*StandardStream) OnDisconnect added in v1.14.0 

func (s *StandardStream) OnDisconnect(cb func())

func (*StandardStream) OnFuturesPositionSnapshot added in v1.22.0 

func (s *StandardStream) OnFuturesPositionSnapshot(cb func(futuresPositions FuturesPositionMap))

func (*StandardStream) OnFuturesPositionUpdate added in v1.22.0 

func (s *StandardStream) OnFuturesPositionUpdate(cb func(futuresPositions FuturesPositionMap))

func (*StandardStream) OnKLine 

func (s *StandardStream) OnKLine(cb func(kline KLine))

func (*StandardStream) OnKLineClosed 

func (s *StandardStream) OnKLineClosed(cb func(kline KLine))

func (*StandardStream) OnOrderUpdate 

func (s *StandardStream) OnOrderUpdate(cb func(order Order))

func (*StandardStream) OnStart added in v1.14.0 

func (s *StandardStream) OnStart(cb func())

func (*StandardStream) OnTradeUpdate 

func (s *StandardStream) OnTradeUpdate(cb func(trade Trade))

func (*StandardStream) Read added in v1.23.0 

func (s *StandardStream) Read(ctx context.Context, conn *websocket.Conn, cancel context.CancelFunc)

func (*StandardStream) Reconnect added in v1.17.0 

func (s *StandardStream) Reconnect()

func (*StandardStream) SetConn added in v1.23.0 

func (s *StandardStream) SetConn(ctx context.Context, conn *websocket.Conn) (context.Context, context.CancelFunc)

func (*StandardStream) SetDispatcher added in v1.23.0 

func (s *StandardStream) SetDispatcher(dispatcher Dispatcher)

func (*StandardStream) SetEndpointCreator added in v1.23.0 

func (s *StandardStream) SetEndpointCreator(creator EndpointCreator)

func (*StandardStream) SetParser added in v1.23.0 

func (s *StandardStream) SetParser(parser Parser)

func (*StandardStream) SetPublicOnly added in v1.21.0 

func (s *StandardStream) SetPublicOnly()

func (*StandardStream) Subscribe 

func (s *StandardStream) Subscribe(channel Channel, symbol string, options SubscribeOptions)

type StandardStreamEventHub 

type StandardStreamEventHub interface {
	OnStart(cb func())

	OnConnect(cb func())

	OnDisconnect(cb func())

	OnTradeUpdate(cb func(trade Trade))

	OnOrderUpdate(cb func(order Order))

	OnBalanceSnapshot(cb func(balances BalanceMap))

	OnBalanceUpdate(cb func(balances BalanceMap))

	OnKLineClosed(cb func(kline KLine))

	OnKLine(cb func(kline KLine))

	OnBookUpdate(cb func(book SliceOrderBook))

	OnBookTickerUpdate(cb func(bookTicker BookTicker))

	OnBookSnapshot(cb func(book SliceOrderBook))

	OnFuturesPositionUpdate(cb func(futuresPositions FuturesPositionMap))

	OnFuturesPositionSnapshot(cb func(futuresPositions FuturesPositionMap))
}

type Stream 

type Stream interface {
	StandardStreamEventHub

	Subscribe(channel Channel, symbol string, options SubscribeOptions)
	SetPublicOnly()
	Connect(ctx context.Context) error
	Close() error
}

type StreamOrderBook 

type StreamOrderBook struct {
	*MutexOrderBook

	C sigchan.Chan
}

StreamOrderBook receives streaming data from websocket connection and update the order book with mutex lock, so you can safely access it.

func NewStreamBook 

func NewStreamBook(symbol string) *StreamOrderBook

func (*StreamOrderBook) BindStream 

func (sb *StreamOrderBook) BindStream(stream Stream)

type Stringer added in v1.16.0 

type Stringer interface {
	String() string
}

type SubmitOrder 

type SubmitOrder struct {
	ClientOrderID string `json:"clientOrderID" db:"client_order_id"`

	Symbol string    `json:"symbol" db:"symbol"`
	Side   SideType  `json:"side" db:"side"`
	Type   OrderType `json:"orderType" db:"order_type"`

	Quantity  float64 `json:"quantity" db:"quantity"`
	Price     float64 `json:"price" db:"price"`
	StopPrice float64 `json:"stopPrice,omitempty" db:"stop_price"`

	Market Market `json:"-" db:"-"`

	TimeInForce string `json:"timeInForce,omitempty" db:"time_in_force"` // GTC, IOC, FOK

	GroupID uint32 `json:"groupID,omitempty"`

	MarginSideEffect MarginOrderSideEffectType `json:"marginSideEffect,omitempty"` // AUTO_REPAY = repay, MARGIN_BUY = borrow, defaults to  NO_SIDE_EFFECT

	// futures order fields
	IsFutures     bool `json:"is_futures" db:"is_futures"`
	ReduceOnly    bool `json:"reduceOnly" db:"reduce_only"`
	ClosePosition bool `json:"closePosition" db:"close_position"`
}

func (*SubmitOrder) PlainText added in v1.4.0 

func (o *SubmitOrder) PlainText() string

func (*SubmitOrder) SlackAttachment 

func (o *SubmitOrder) SlackAttachment() slack.Attachment

func (*SubmitOrder) String 

func (o *SubmitOrder) String() string

type SubscribeOptions 

type SubscribeOptions struct {
	Interval string `json:"interval,omitempty"`
	Depth    Depth  `json:"depth,omitempty"`
	Speed    Speed  `json:"speed,omitempty"`
}

SubscribeOptions provides the standard stream options

func (SubscribeOptions) String 

func (o SubscribeOptions) String() string

type Subscription 

type Subscription struct {
	Symbol  string           `json:"symbol"`
	Channel Channel          `json:"channel"`
	Options SubscribeOptions `json:"options"`
}

type SyncOrderMap 

type SyncOrderMap struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewSyncOrderMap 

func NewSyncOrderMap() *SyncOrderMap

func (*SyncOrderMap) Add 

func (m *SyncOrderMap) Add(o Order)

func (*SyncOrderMap) AnyFilled 

func (m *SyncOrderMap) AnyFilled() (order Order, ok bool)

AnyFilled find any order is filled and stop iterating the order map

func (*SyncOrderMap) Backup added in v1.14.0 

func (m *SyncOrderMap) Backup() (orders []SubmitOrder)

func (*SyncOrderMap) Canceled 

func (m *SyncOrderMap) Canceled() OrderSlice

func (*SyncOrderMap) Exists 

func (m *SyncOrderMap) Exists(orderID uint64) (exists bool)

func (*SyncOrderMap) Filled 

func (m *SyncOrderMap) Filled() OrderSlice

func (*SyncOrderMap) FindByStatus 

func (m *SyncOrderMap) FindByStatus(status OrderStatus) OrderSlice

func (*SyncOrderMap) IDs 

func (m *SyncOrderMap) IDs() (ids []uint64)

func (*SyncOrderMap) Iterate 

func (m *SyncOrderMap) Iterate(it func(id uint64, order Order) bool)

func (*SyncOrderMap) Len 

func (m *SyncOrderMap) Len() int

func (*SyncOrderMap) Orders 

func (m *SyncOrderMap) Orders() (slice OrderSlice)

func (*SyncOrderMap) Remove added in v1.1.0 

func (m *SyncOrderMap) Remove(orderID uint64) (exists bool)

func (*SyncOrderMap) Update 

func (m *SyncOrderMap) Update(o Order)

type Ticker added in v1.11.0 

type Ticker struct {
	Time   time.Time
	Volume float64 // `volume` from Max & binance
	Last   float64 // `last` from Max, `lastPrice` from binance
	Open   float64 // `open` from Max, `openPrice` from binance
	High   float64 // `high` from Max, `highPrice` from binance
	Low    float64 // `low` from Max, `lowPrice` from binance
	Buy    float64 // `buy` from Max, `bidPrice` from binance
	Sell   float64 // `sell` from Max, `askPrice` from binance
}

type Time added in v1.17.0 

type Time time.Time

func NewTimeFromUnix added in v1.21.0 

func NewTimeFromUnix(sec int64, nsec int64) Time

func (Time) After added in v1.21.0 

func (t Time) After(time2 time.Time) bool

func (Time) Before added in v1.21.0 

func (t Time) Before(time2 time.Time) bool

func (Time) MarshalJSON added in v1.17.0 

func (t Time) MarshalJSON() ([]byte, error)

func (*Time) Scan added in v1.17.0 

func (t *Time) Scan(src interface{}) error

func (Time) String added in v1.17.0 

func (t Time) String() string

func (Time) Time added in v1.17.0 

func (t Time) Time() time.Time

func (Time) Unix added in v1.21.0 

func (t Time) Unix() int64

func (*Time) UnmarshalJSON added in v1.17.0 

func (t *Time) UnmarshalJSON(data []byte) error

func (Time) Value added in v1.17.0 

func (t Time) Value() (driver.Value, error)

Value implements the driver.Valuer interface see http://jmoiron.net/blog/built-in-interfaces/

type Trade 

type Trade struct {
	// GID is the global ID
	GID int64 `json:"gid" db:"gid"`

	// ID is the source trade ID
	ID            uint64       `json:"id" db:"id"`
	OrderID       uint64       `json:"orderID" db:"order_id"`
	Exchange      ExchangeName `json:"exchange" db:"exchange"`
	Price         float64      `json:"price" db:"price"`
	Quantity      float64      `json:"quantity" db:"quantity"`
	QuoteQuantity float64      `json:"quoteQuantity" db:"quote_quantity"`
	Symbol        string       `json:"symbol" db:"symbol"`

	Side        SideType `json:"side" db:"side"`
	IsBuyer     bool     `json:"isBuyer" db:"is_buyer"`
	IsMaker     bool     `json:"isMaker" db:"is_maker"`
	Time        Time     `json:"tradedAt" db:"traded_at"`
	Fee         float64  `json:"fee" db:"fee"`
	FeeCurrency string   `json:"feeCurrency" db:"fee_currency"`

	IsMargin   bool `json:"isMargin" db:"is_margin"`
	IsFutures  bool `json:"isFutures" db:"is_futures"`
	IsIsolated bool `json:"isIsolated" db:"is_isolated"`

	StrategyID sql.NullString  `json:"strategyID" db:"strategy"`
	PnL        sql.NullFloat64 `json:"pnl" db:"pnl"`
}

func (Trade) Key added in v1.11.1 

func (trade Trade) Key() TradeKey

func (Trade) Liquidity added in v1.16.0 

func (trade Trade) Liquidity() (o string)

func (Trade) PlainText added in v1.4.0 

func (trade Trade) PlainText() string

PlainText is used for telegram-styled messages

func (Trade) PositionChange added in v1.21.0 

func (trade Trade) PositionChange() fixedpoint.Value

func (Trade) SlackAttachment 

func (trade Trade) SlackAttachment() slack.Attachment

func (Trade) String added in v1.17.0 

func (trade Trade) String() string

String is for console output

type TradeKey added in v1.11.1 

type TradeKey struct {
	Exchange ExchangeName
	ID       uint64
	Side     SideType
}

type TradeQueryOptions 

type TradeQueryOptions struct {
	StartTime   *time.Time
	EndTime     *time.Time
	Limit       int64
	LastTradeID uint64
}

type TradeSlice added in v1.11.0 

type TradeSlice struct {
	Trades []Trade
	// contains filtered or unexported fields
}

func (*TradeSlice) Append added in v1.11.0 

func (s *TradeSlice) Append(t Trade)

func (*TradeSlice) Copy added in v1.11.0 

func (s *TradeSlice) Copy() []Trade

func (*TradeSlice) Reverse added in v1.13.0 

func (s *TradeSlice) Reverse()

type Withdraw 

type Withdraw struct {
	GID        int64        `json:"gid" db:"gid"`
	Exchange   ExchangeName `json:"exchange" db:"exchange"`
	Asset      string       `json:"asset" db:"asset"`
	Amount     float64      `json:"amount" db:"amount"`
	Address    string       `json:"address" db:"address"`
	AddressTag string       `json:"addressTag"`
	Status     string       `json:"status"`

	TransactionID          string  `json:"transactionID" db:"txn_id"`
	TransactionFee         float64 `json:"transactionFee" db:"txn_fee"`
	TransactionFeeCurrency string  `json:"transactionFeeCurrency" db:"txn_fee_currency"`
	WithdrawOrderID        string  `json:"withdrawOrderId"`
	ApplyTime              Time    `json:"applyTime" db:"time"`
	Network                string  `json:"network" db:"network"`
}

func (Withdraw) EffectiveTime 

func (w Withdraw) EffectiveTime() time.Time

func (Withdraw) String added in v1.14.0 

func (w Withdraw) String() string

type WithdrawalOptions added in v1.17.0 

type WithdrawalOptions struct {
	Network    string
	AddressTag string
}

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