package bbgo import ( "context" "github.com/adshao/go-binance" log "github.com/sirupsen/logrus" "strconv" "time" ) type BinanceExchange struct { Client *binance.Client } func (e *BinanceExchange) SubmitOrder(ctx context.Context, order Order) error { /* limit order example order, err := Client.NewCreateOrderService(). Symbol(Symbol). Side(side). Type(binance.OrderTypeLimit). TimeInForce(binance.TimeInForceTypeGTC). Quantity(volumeString). Price(priceString). Do(ctx) */ req := e.Client.NewCreateOrderService(). Symbol(order.Symbol). Side(order.Side). Type(order.Type). Quantity(order.VolumeStr) if len(order.PriceStr) > 0 { req.Price(order.PriceStr) } if len(order.TimeInForce) > 0 { req.TimeInForce(order.TimeInForce) } retOrder, err := req.Do(ctx) log.Infof("order created: %+v", retOrder) return err } func (e *BinanceExchange) QueryKLines(ctx context.Context, symbol, interval string, limit int) ([]KLine, error) { resp, err := e.Client.NewKlinesService().Symbol(symbol).Interval(interval).Limit(limit).Do(ctx) if err != nil { return nil, err } var klines []KLine for _, kline := range resp { klines = append(klines, KLine{ Symbol: symbol, Interval: interval, StartTime: kline.OpenTime, EndTime: kline.CloseTime, Open: kline.Open, Close: kline.Close, High: kline.High, Low: kline.Low, Volume: kline.Volume, QuoteVolume: kline.QuoteAssetVolume, NumberOfTrades: kline.TradeNum, }) } return klines, nil } func (e *BinanceExchange) QueryTrades(ctx context.Context, market string, startTime time.Time) (trades []Trade, err error) { var lastTradeID int64 = 0 for { req := e.Client.NewListTradesService(). Limit(1000). Symbol(market). StartTime(startTime.UnixNano() / 1000000) if lastTradeID > 0 { req.FromID(lastTradeID) } bnTrades, err := req.Do(ctx) if err != nil { return nil, err } if len(bnTrades) <= 1 { break } for _, t := range bnTrades { // skip trade ID that is the same if t.ID == lastTradeID { continue } var side string if t.IsBuyer { side = "BUY" } else { side = "SELL" } // trade time tt := time.Unix(0, t.Time*1000000) log.Infof("trade: %d %4s Price: % 13s Volume: % 13s %s", t.ID, side, t.Price, t.Quantity, tt) price, err := strconv.ParseFloat(t.Price, 64) if err != nil { return nil, err } quantity, err := strconv.ParseFloat(t.Quantity, 64) if err != nil { return nil, err } fee, err := strconv.ParseFloat(t.Commission, 64) if err != nil { return nil, err } trades = append(trades, Trade{ ID: t.ID, Price: price, Volume: quantity, IsBuyer: t.IsBuyer, IsMaker: t.IsMaker, Fee: fee, FeeCurrency: t.CommissionAsset, Time: tt, }) lastTradeID = t.ID } } return trades, nil }