store

Documentation

Index

• func ValidatePairSymbol(symbol string) error
• type OpenOrder
  • func DecodeOpenOrders(cdc *wire.Codec, bz *[]byte) ([]OpenOrder, error)
  • func GetOpenOrders(cdc *wire.Codec, ctx context.CLIContext, pair string, addr string) ([]OpenOrder, error)
• type OrderBook
  • func GetOrderBook(cdc *wire.Codec, ctx context.CLIContext, pair string, levels int) (*OrderBook, error)
• type OrderBookLevel
• type RecentPrice
• type TradingPairMapper
  • func NewTradingPairMapper(cdc *wire.Codec, key sdk.StoreKey) TradingPairMapper

Functions

func ValidatePairSymbol

func ValidatePairSymbol(symbol string) error

ValidatePairSymbol validates the given trading pair.

Types

type OpenOrder

type OpenOrder struct {
	Id                   string       `json:"id"`
	Symbol               string       `json:"symbol"`
	Price                utils.Fixed8 `json:"price"`
	Quantity             utils.Fixed8 `json:"quantity"`
	CumQty               utils.Fixed8 `json:"cumQty"`
	CreatedHeight        int64        `json:"createdHeight"`
	CreatedTimestamp     int64        `json:"createdTimestamp"`
	LastUpdatedHeight    int64        `json:"lastUpdatedHeight"`
	LastUpdatedTimestamp int64        `json:"lastUpdatedTimestamp"`
}

func DecodeOpenOrders

func DecodeOpenOrders(cdc *wire.Codec, bz *[]byte) ([]OpenOrder, error)

func GetOpenOrders

func GetOpenOrders(cdc *wire.Codec, ctx context.CLIContext, pair string, addr string) ([]OpenOrder, error)

type OrderBook

type OrderBook struct {
	Height       int64
	Levels       []OrderBookLevel
	PendingMatch bool
}

OrderBook represents an order book at the current point block height, which is included in its struct.

func GetOrderBook

func GetOrderBook(cdc *wire.Codec, ctx context.CLIContext, pair string, levels int) (*OrderBook, error)

GetOrderBook decodes the order book from the serialized store

type OrderBookLevel

type OrderBookLevel struct {
	BuyQty    utils.Fixed8 `json:"buyQty"`
	BuyPrice  utils.Fixed8 `json:"buyPrice"`
	SellQty   utils.Fixed8 `json:"sellQty"`
	SellPrice utils.Fixed8 `json:"sellPrice"`
}

OrderBookLevel represents a single order book level.

type RecentPrice

type RecentPrice struct {
	Pair  []string
	Price []int64
}

type TradingPairMapper

type TradingPairMapper interface {
	AddTradingPair(ctx sdk.Context, pair types.TradingPair) error
	Exists(ctx sdk.Context, baseAsset, quoteAsset string) bool
	GetTradingPair(ctx sdk.Context, baseAsset, quoteAsset string) (types.TradingPair, error)
	DeleteTradingPair(ctx sdk.Context, baseAsset, quoteAsset string) error
	ListAllTradingPairs(ctx sdk.Context) []types.TradingPair
	UpdateRecentPrices(ctx sdk.Context, pricesStoreEvery, numPricesStored int64, lastTradePrices map[string]int64)
	GetRecentPrices(ctx sdk.Context, pricesStoreEvery, numPricesStored int64) map[string]*utils.FixedSizeRing
	DeleteRecentPrices(ctx sdk.Context, symbol string)
}

func NewTradingPairMapper

func NewTradingPairMapper(cdc *wire.Codec, key sdk.StoreKey) TradingPairMapper