bbgo_origin/pkg/exchange/binance/parse.go

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package binance
import (
"encoding/json"
"errors"
"fmt"
"time"
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"github.com/adshao/go-binance/v2/futures"
"github.com/adshao/go-binance/v2"
"github.com/valyala/fastjson"
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"github.com/c9s/bbgo/pkg/fixedpoint"
"github.com/c9s/bbgo/pkg/types"
"github.com/c9s/bbgo/pkg/util"
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)
/*
executionReport
{
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"e": "executionReport", // Event type
"E": 1499405658658, // Event time
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"s": "ETHBTC", // Symbol
"c": "mUvoqJxFIILMdfAW5iGSOW", // Client order ID
"S": "BUY", // Side
"o": "LIMIT", // Order type
"f": "GTC", // Time in force
"q": "1.00000000", // Order quantity
"p": "0.10264410", // Order price
"P": "0.00000000", // Stop price
"F": "0.00000000", // Iceberg quantity
"g": -1, // OrderListId
"C": null, // Original client order ID; This is the ID of the order being canceled
"x": "NEW", // Current execution type
"X": "NEW", // Current order status
"r": "NONE", // Order reject reason; will be an error code.
"i": 4293153, // Order ID
"l": "0.00000000", // Last executed quantity
"z": "0.00000000", // Cumulative filled quantity
"L": "0.00000000", // Last executed price
"n": "0", // Commission amount
"N": null, // Commission asset
"T": 1499405658657, // Transaction time
"t": -1, // Trade ID
"I": 8641984, // Ignore
"w": true, // Is the order on the book?
"m": false, // Is this trade the maker side?
"M": false, // Ignore
"O": 1499405658657, // Order creation time
"Z": "0.00000000", // Cumulative quote asset transacted quantity
"Y": "0.00000000", // Last quote asset transacted quantity (i.e. lastPrice * lastQty)
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"Q": "0.00000000" // Quote Order Qty
}
*/
type ExecutionReportEvent struct {
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EventBase
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Symbol string `json:"s"`
Side string `json:"S"`
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ClientOrderID string `json:"c"`
OriginalClientOrderID string `json:"C"`
OrderType string `json:"o"`
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OrderCreationTime int64 `json:"O"`
TimeInForce string `json:"f"`
IcebergQuantity string `json:"F"`
OrderQuantity string `json:"q"`
QuoteOrderQuantity string `json:"Q"`
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OrderPrice string `json:"p"`
StopPrice string `json:"P"`
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IsOnBook bool `json:"w"`
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IsMaker bool `json:"m"`
Ignore bool `json:"M"`
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CommissionAmount string `json:"n"`
CommissionAsset string `json:"N"`
CurrentExecutionType string `json:"x"`
CurrentOrderStatus string `json:"X"`
OrderID int64 `json:"i"`
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Ignored int64 `json:"I"`
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TradeID int64 `json:"t"`
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TransactionTime int64 `json:"T"`
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LastExecutedQuantity string `json:"l"`
LastExecutedPrice string `json:"L"`
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CumulativeFilledQuantity string `json:"z"`
CumulativeQuoteAssetTransactedQuantity string `json:"Z"`
LastQuoteAssetTransactedQuantity string `json:"Y"`
}
func (e *ExecutionReportEvent) Order() (*types.Order, error) {
switch e.CurrentExecutionType {
case "NEW", "CANCELED", "REJECTED", "EXPIRED":
case "REPLACED":
case "TRADE": // For Order FILLED status. And the order has been completed.
default:
return nil, errors.New("execution report type is not for order")
}
orderCreationTime := time.Unix(0, e.OrderCreationTime*int64(time.Millisecond))
return &types.Order{
Exchange: types.ExchangeBinance,
SubmitOrder: types.SubmitOrder{
Symbol: e.Symbol,
ClientOrderID: e.ClientOrderID,
Side: toGlobalSideType(binance.SideType(e.Side)),
Type: toGlobalOrderType(binance.OrderType(e.OrderType)),
Quantity: util.MustParseFloat(e.OrderQuantity),
Price: util.MustParseFloat(e.OrderPrice),
TimeInForce: e.TimeInForce,
},
OrderID: uint64(e.OrderID),
Status: toGlobalOrderStatus(binance.OrderStatusType(e.CurrentOrderStatus)),
ExecutedQuantity: util.MustParseFloat(e.CumulativeFilledQuantity),
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CreationTime: types.Time(orderCreationTime),
}, nil
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}
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func (e *ExecutionReportEvent) Trade() (*types.Trade, error) {
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if e.CurrentExecutionType != "TRADE" {
return nil, errors.New("execution report is not a trade")
}
tt := time.Unix(0, e.TransactionTime*int64(time.Millisecond))
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return &types.Trade{
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ID: uint64(e.TradeID),
Exchange: types.ExchangeBinance,
Symbol: e.Symbol,
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OrderID: uint64(e.OrderID),
Side: toGlobalSideType(binance.SideType(e.Side)),
Price: util.MustParseFloat(e.LastExecutedPrice),
Quantity: util.MustParseFloat(e.LastExecutedQuantity),
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QuoteQuantity: util.MustParseFloat(e.LastQuoteAssetTransactedQuantity),
IsBuyer: e.Side == "BUY",
IsMaker: e.IsMaker,
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Time: types.Time(tt),
Fee: util.MustParseFloat(e.CommissionAmount),
FeeCurrency: e.CommissionAsset,
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}, nil
}
/*
balanceUpdate
{
"e": "balanceUpdate", //KLineEvent Type
"E": 1573200697110, //KLineEvent Time
"a": "BTC", //Asset
"d": "100.00000000", //Balance Delta
"T": 1573200697068 //Clear Time
}
*/
type BalanceUpdateEvent struct {
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EventBase
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Asset string `json:"a"`
Delta string `json:"d"`
ClearTime int64 `json:"T"`
}
/*
outboundAccountInfo
{
"e": "outboundAccountInfo", // KLineEvent type
"E": 1499405658849, // KLineEvent time
"m": 0, // Maker commission rate (bips)
"t": 0, // Taker commission rate (bips)
"b": 0, // Buyer commission rate (bips)
"s": 0, // Seller commission rate (bips)
"T": true, // Can trade?
"W": true, // Can withdraw?
"D": true, // Can deposit?
"u": 1499405658848, // Time of last account update
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"B": [ // AccountBalances array
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{
"a": "LTC", // Asset
"f": "17366.18538083", // Free amount
"l": "0.00000000" // Locked amount
},
{
"a": "BTC",
"f": "10537.85314051",
"l": "2.19464093"
},
{
"a": "ETH",
"f": "17902.35190619",
"l": "0.00000000"
},
{
"a": "BNC",
"f": "1114503.29769312",
"l": "0.00000000"
},
{
"a": "NEO",
"f": "0.00000000",
"l": "0.00000000"
}
],
"P": [ // Account Permissions
"SPOT"
]
}
*/
type Balance struct {
Asset string `json:"a"`
Free fixedpoint.Value `json:"f"`
Locked fixedpoint.Value `json:"l"`
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}
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type OutboundAccountPositionEvent struct {
EventBase
LastAccountUpdateTime int `json:"u"`
Balances []Balance `json:"B,omitempty"`
}
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type OutboundAccountInfoEvent struct {
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EventBase
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MakerCommissionRate int `json:"m"`
TakerCommissionRate int `json:"t"`
BuyerCommissionRate int `json:"b"`
SellerCommissionRate int `json:"s"`
CanTrade bool `json:"T"`
CanWithdraw bool `json:"W"`
CanDeposit bool `json:"D"`
LastAccountUpdateTime int `json:"u"`
Balances []Balance `json:"B,omitempty"`
Permissions []string `json:"P,omitempty"`
}
type ResultEvent struct {
Result interface{} `json:"result,omitempty"`
ID int `json:"id"`
}
func ParseEvent(message string) (interface{}, error) {
val, err := fastjson.Parse(message)
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if err != nil {
return nil, err
}
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//res, err := json.MarshalIndent(message, "", " ")
//if err != nil {
// log.Fatal(err)
//}
//str := strings.ReplaceAll(string(res), "\\", "")
//fmt.Println(str)
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eventType := string(val.GetStringBytes("e"))
if eventType == "" && IsBookTicker(val) {
eventType = "bookticker"
}
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switch eventType {
case "kline":
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var event KLineEvent
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err := json.Unmarshal([]byte(message), &event)
return &event, err
case "bookticker":
var event BookTickerEvent
err := json.Unmarshal([]byte(message), &event)
event.Event = eventType
return &event, err
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case "outboundAccountPosition":
var event OutboundAccountPositionEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
case "outboundAccountInfo":
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var event OutboundAccountInfoEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
case "balanceUpdate":
var event BalanceUpdateEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
case "executionReport":
var event ExecutionReportEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
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case "depthUpdate":
return parseDepthEvent(val)
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case "markPriceUpdate":
var event MarkPriceUpdateEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
// Binance futures data --------------
case "continuousKline":
var event ContinuousKLineEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
case "ORDER_TRADE_UPDATE":
var event OrderTradeUpdateEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
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// Event: Balance and Position Update
case "ACCOUNT_UPDATE":
var event AccountUpdateEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
// Event: Order Update
case "ACCOUNT_CONFIG_UPDATE":
var event AccountConfigUpdateEvent
err := json.Unmarshal([]byte(message), &event)
return &event, err
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default:
id := val.GetInt("id")
if id > 0 {
return &ResultEvent{ID: id}, nil
}
}
return nil, fmt.Errorf("unsupported message: %s", message)
}
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// IsBookTicker document ref :https://binance-docs.github.io/apidocs/spot/en/#individual-symbol-book-ticker-streams
//use key recognition because there's no identify in the content.
func IsBookTicker(val *fastjson.Value) bool {
return !val.Exists("e") && val.Exists("u") &&
val.Exists("s") && val.Exists("b") &&
val.Exists("B") && val.Exists("a") && val.Exists("A")
}
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type DepthEntry struct {
PriceLevel fixedpoint.Value
Quantity fixedpoint.Value
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}
type DepthEvent struct {
EventBase
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Symbol string `json:"s"`
FirstUpdateID int64 `json:"U"`
FinalUpdateID int64 `json:"u"`
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Bids types.PriceVolumeSlice `json:"b"`
Asks types.PriceVolumeSlice `json:"a"`
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}
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func (e *DepthEvent) String() (o string) {
o += fmt.Sprintf("Depth %s bid/ask = ", e.Symbol)
if len(e.Bids) == 0 {
o += "empty"
} else {
o += e.Bids[0].Price.String()
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}
o += "/"
if len(e.Asks) == 0 {
o += "empty"
} else {
o += e.Asks[0].Price.String()
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}
o += fmt.Sprintf(" %d ~ %d", e.FirstUpdateID, e.FinalUpdateID)
return o
}
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func (e *DepthEvent) OrderBook() (book types.SliceOrderBook, err error) {
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book.Symbol = e.Symbol
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// already in descending order
book.Bids = e.Bids
book.Asks = e.Asks
return book, err
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}
func parseDepthEntry(val *fastjson.Value) (*types.PriceVolume, error) {
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arr, err := val.Array()
if err != nil {
return nil, err
}
if len(arr) < 2 {
return nil, errors.New("incorrect depth entry element length")
}
price, err := fixedpoint.NewFromString(string(arr[0].GetStringBytes()))
if err != nil {
return nil, err
}
quantity, err := fixedpoint.NewFromString(string(arr[1].GetStringBytes()))
if err != nil {
return nil, err
}
return &types.PriceVolume{
Price: price,
Volume: quantity,
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}, nil
}
func parseDepthEvent(val *fastjson.Value) (*DepthEvent, error) {
var err error
var depth = &DepthEvent{
EventBase: EventBase{
Event: string(val.GetStringBytes("e")),
Time: val.GetInt64("E"),
},
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Symbol: string(val.GetStringBytes("s")),
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FirstUpdateID: val.GetInt64("U"),
FinalUpdateID: val.GetInt64("u"),
}
for _, ev := range val.GetArray("b") {
entry, err2 := parseDepthEntry(ev)
if err2 != nil {
err = err2
continue
}
depth.Bids = append(depth.Bids, *entry)
}
for _, ev := range val.GetArray("a") {
entry, err2 := parseDepthEntry(ev)
if err2 != nil {
err = err2
continue
}
depth.Asks = append(depth.Asks, *entry)
}
return depth, err
}
type KLine struct {
StartTime int64 `json:"t"`
EndTime int64 `json:"T"`
Symbol string `json:"s"`
Interval string `json:"i"`
Open fixedpoint.Value `json:"o"`
Close fixedpoint.Value `json:"c"`
High fixedpoint.Value `json:"h"`
Low fixedpoint.Value `json:"l"`
Volume fixedpoint.Value `json:"v"` // base asset volume (like 10 BTC)
QuoteVolume fixedpoint.Value `json:"q"` // quote asset volume
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TakerBuyBaseAssetVolume fixedpoint.Value `json:"V"` // taker buy base asset volume (like 10 BTC)
TakerBuyQuoteAssetVolume fixedpoint.Value `json:"Q"` // taker buy quote asset volume (like 1000USDT)
LastTradeID int `json:"L"`
NumberOfTrades int64 `json:"n"`
Closed bool `json:"x"`
}
/*
kline
{
"e": "kline", // KLineEvent type
"E": 123456789, // KLineEvent time
"s": "BNBBTC", // Symbol
"k": {
"t": 123400000, // Kline start time
"T": 123460000, // Kline close time
"s": "BNBBTC", // Symbol
"i": "1m", // Interval
"f": 100, // First trade ID
"L": 200, // Last trade ID
"o": "0.0010", // Open price
"c": "0.0020", // Close price
"h": "0.0025", // High price
"l": "0.0015", // Low price
"v": "1000", // Base asset volume
"n": 100, // Number of trades
"x": false, // Is this kline closed?
"q": "1.0000", // Quote asset volume
"V": "500", // Taker buy base asset volume
"Q": "0.500", // Taker buy quote asset volume
"B": "123456" // Ignore
}
}
*/
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type KLineEvent struct {
EventBase
Symbol string `json:"s"`
KLine KLine `json:"k,omitempty"`
}
func (k *KLine) KLine() types.KLine {
return types.KLine{
Exchange: types.ExchangeBinance,
Symbol: k.Symbol,
Interval: types.Interval(k.Interval),
StartTime: types.NewTimeFromUnix(0, k.StartTime*int64(time.Millisecond)),
EndTime: types.NewTimeFromUnix(0, k.EndTime*int64(time.Millisecond)),
Open: k.Open.Float64(),
Close: k.Close.Float64(),
High: k.High.Float64(),
Low: k.Low.Float64(),
Volume: k.Volume.Float64(),
QuoteVolume: k.QuoteVolume.Float64(),
TakerBuyBaseAssetVolume: k.TakerBuyBaseAssetVolume.Float64(),
TakerBuyQuoteAssetVolume: k.TakerBuyQuoteAssetVolume.Float64(),
LastTradeID: uint64(k.LastTradeID),
NumberOfTrades: uint64(k.NumberOfTrades),
Closed: k.Closed,
}
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}
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type MarkPriceUpdateEvent struct {
EventBase
Symbol string `json:"s"`
MarkPrice fixedpoint.Value `json:"p"`
IndexPrice fixedpoint.Value `json:"i"`
EstimatedPrice fixedpoint.Value `json:"P"`
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FundingRate fixedpoint.Value `json:"r"`
NextFundingTime int64 `json:"T"`
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}
/*
{
"e": "markPriceUpdate", // Event type
"E": 1562305380000, // Event time
"s": "BTCUSDT", // Symbol
"p": "11794.15000000", // Mark price
"i": "11784.62659091", // Index price
"P": "11784.25641265", // Estimated Settle Price, only useful in the last hour before the settlement starts
"r": "0.00038167", // Funding rate
"T": 1562306400000 // Next funding time
}
*/
type ContinuousKLineEvent struct {
EventBase
Symbol string `json:"ps"`
ct string `json:"ct"`
KLine KLine `json:"k,omitempty"`
}
/*
{
"e":"continuous_kline", // Event type
"E":1607443058651, // Event time
"ps":"BTCUSDT", // Pair
"ct":"PERPETUAL" // Contract type
"k":{
"t":1607443020000, // Kline start time
"T":1607443079999, // Kline close time
"i":"1m", // Interval
"f":116467658886, // First trade ID
"L":116468012423, // Last trade ID
"o":"18787.00", // Open price
"c":"18804.04", // Close price
"h":"18804.04", // High price
"l":"18786.54", // Low price
"v":"197.664", // volume
"n": 543, // Number of trades
"x":false, // Is this kline closed?
"q":"3715253.19494", // Quote asset volume
"V":"184.769", // Taker buy volume
"Q":"3472925.84746", //Taker buy quote asset volume
"B":"0" // Ignore
}
}
*/
// Similar to the ExecutionReportEvent's fields. But with totally different json key.
// e.g., Stop price. So that, we can not merge them.
type OrderTrade struct {
Symbol string `json:"s"`
ClientOrderID string `json:"c"`
Side string `json:"S"`
OrderType string `json:"o"`
TimeInForce string `json:"f"`
OriginalQuantity string `json:"q"`
OriginalPrice string `json:"p"`
AveragePrice string `json:"ap"`
StopPrice string `json:"sp"`
CurrentExecutionType string `json:"x"`
CurrentOrderStatus string `json:"X"`
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OrderId int64 `json:"i"`
OrderLastFilledQuantity string `json:"l"`
OrderFilledAccumulatedQuantity string `json:"z"`
LastFilledPrice string `json:"L"`
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CommissionAmount string `json:"n"`
CommissionAsset string `json:"N"`
OrderTradeTime int64 `json:"T"`
TradeId int64 `json:"t"`
BidsNotional string `json:"b"`
AskNotional string `json:"a"`
IsMaker bool `json:"m"`
IsReduceOnly bool ` json:"r"`
StopPriceWorkingType string `json:"wt"`
OriginalOrderType string `json:"ot"`
PositionSide string `json:"ps"`
RealizedProfit string `json:"rp"`
}
type OrderTradeUpdateEvent struct {
EventBase
Transaction int64 `json:"T"`
OrderTrade OrderTrade `json:"o"`
}
// {
// "e":"ORDER_TRADE_UPDATE", // Event Type
// "E":1568879465651, // Event Time
// "T":1568879465650, // Transaction Time
// "o":{
// "s":"BTCUSDT", // Symbol
// "c":"TEST", // Client Order Id
// // special client order id:
// // starts with "autoclose-": liquidation order
// // "adl_autoclose": ADL auto close order
// "S":"SELL", // Side
// "o":"TRAILING_STOP_MARKET", // Order Type
// "f":"GTC", // Time in Force
// "q":"0.001", // Original Quantity
// "p":"0", // Original Price
// "ap":"0", // Average Price
// "sp":"7103.04", // Stop Price. Please ignore with TRAILING_STOP_MARKET order
// "x":"NEW", // Execution Type
// "X":"NEW", // Order Status
// "i":8886774, // Order Id
// "l":"0", // Order Last Filled Quantity
// "z":"0", // Order Filled Accumulated Quantity
// "L":"0", // Last Filled Price
// "N":"USDT", // Commission Asset, will not push if no commission
// "n":"0", // Commission, will not push if no commission
// "T":1568879465651, // Order Trade Time
// "t":0, // Trade Id
// "b":"0", // Bids Notional
// "a":"9.91", // Ask Notional
// "m":false, // Is this trade the maker side?
// "R":false, // Is this reduce only
// "wt":"CONTRACT_PRICE", // Stop Price Working Type
// "ot":"TRAILING_STOP_MARKET", // Original Order Type
// "ps":"LONG", // Position Side
// "cp":false, // If Close-All, pushed with conditional order
// "AP":"7476.89", // Activation Price, only puhed with TRAILING_STOP_MARKET order
// "cr":"5.0", // Callback Rate, only puhed with TRAILING_STOP_MARKET order
// "rp":"0" // Realized Profit of the trade
// }
// }
func (e *OrderTradeUpdateEvent) OrderFutures() (*types.Order, error) {
switch e.OrderTrade.CurrentExecutionType {
case "NEW", "CANCELED", "EXPIRED":
case "CALCULATED - Liquidation Execution":
case "TRADE": // For Order FILLED status. And the order has been completed.
default:
return nil, errors.New("execution report type is not for futures order")
}
orderCreationTime := time.Unix(0, e.OrderTrade.OrderTradeTime*int64(time.Millisecond))
return &types.Order{
Exchange: types.ExchangeBinance,
SubmitOrder: types.SubmitOrder{
Symbol: e.OrderTrade.Symbol,
ClientOrderID: e.OrderTrade.ClientOrderID,
Side: toGlobalFuturesSideType(futures.SideType(e.OrderTrade.Side)),
Type: toGlobalFuturesOrderType(futures.OrderType(e.OrderTrade.OrderType)),
Quantity: util.MustParseFloat(e.OrderTrade.OriginalQuantity),
Price: util.MustParseFloat(e.OrderTrade.OriginalPrice),
TimeInForce: e.OrderTrade.TimeInForce,
},
OrderID: uint64(e.OrderTrade.OrderId),
Status: toGlobalFuturesOrderStatus(futures.OrderStatusType(e.OrderTrade.CurrentOrderStatus)),
ExecutedQuantity: util.MustParseFloat(e.OrderTrade.OrderFilledAccumulatedQuantity),
CreationTime: types.Time(orderCreationTime),
}, nil
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}
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type AccountUpdate struct {
EventReasonType string `json:"m"`
Balances []*futures.Balance `json:"B,omitempty"`
Positions []*futures.AccountPosition `json:"P,omitempty"`
}
type AccountUpdateEvent struct {
EventBase
Transaction int64 `json:"T"`
AccountUpdate AccountUpdate `json:"a"`
}
type AccountConfig struct {
Symbol string `json:"s"`
Leverage fixedpoint.Value `json:"l"`
}
type AccountConfigUpdateEvent struct {
EventBase
Transaction int64 `json:"T"`
AccountConfig AccountConfig `json:"ac"`
}
2020-07-11 05:08:50 +00:00
type EventBase struct {
Event string `json:"e"` // event
Time int64 `json:"E"`
}
type BookTickerEvent struct {
EventBase
Symbol string `json:"s"`
Buy fixedpoint.Value `json:"b"`
BuySize fixedpoint.Value `json:"B"`
Sell fixedpoint.Value `json:"a"`
SellSize fixedpoint.Value `json:"A"`
//"u":400900217, // order book updateId
//"s":"BNBUSDT", // symbol
//"b":"25.35190000", // best bid price
//"B":"31.21000000", // best bid qty
//"a":"25.36520000", // best ask price
//"A":"40.66000000" // best ask qty
}
func (k *BookTickerEvent) BookTicker() types.BookTicker {
return types.BookTicker{
Symbol: k.Symbol,
Buy: k.Buy,
BuySize: k.BuySize,
Sell: k.Sell,
SellSize: k.SellSize,
}
}