package binance import ( "context" "fmt" "time" "github.com/adshao/go-binance" "github.com/google/uuid" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/c9s/bbgo/pkg/types" "github.com/c9s/bbgo/pkg/util" ) var log = logrus.WithFields(logrus.Fields{ "exchange": "binance", }) func init() { _ = types.Exchange(&Exchange{}) } type Exchange struct { Client *binance.Client } func New(key, secret string) *Exchange { var client = binance.NewClient(key, secret) return &Exchange{ Client: client, } } func (e *Exchange) Name() types.ExchangeName { return types.ExchangeBinance } func (e *Exchange) QueryMarkets(ctx context.Context) (types.MarketMap, error) { log.Info("querying market info...") exchangeInfo, err := e.Client.NewExchangeInfoService().Do(ctx) if err != nil { return nil, err } markets := types.MarketMap{} for _, symbol := range exchangeInfo.Symbols { market := types.Market{ Symbol: symbol.Symbol, PricePrecision: symbol.QuotePrecision, VolumePrecision: symbol.BaseAssetPrecision, QuoteCurrency: symbol.QuoteAsset, BaseCurrency: symbol.BaseAsset, } if f := symbol.MinNotionalFilter(); f != nil { market.MinNotional = util.MustParseFloat(f.MinNotional) market.MinAmount = util.MustParseFloat(f.MinNotional) } // The LOT_SIZE filter defines the quantity (aka "lots" in auction terms) rules for a symbol. // There are 3 parts: // minQty defines the minimum quantity/icebergQty allowed. // maxQty defines the maximum quantity/icebergQty allowed. // stepSize defines the intervals that a quantity/icebergQty can be increased/decreased by. if f := symbol.LotSizeFilter(); f != nil { market.MinLot = util.MustParseFloat(f.MinQuantity) market.MinQuantity = util.MustParseFloat(f.MinQuantity) market.MaxQuantity = util.MustParseFloat(f.MaxQuantity) // market.StepSize = util.MustParseFloat(f.StepSize) } if f := symbol.PriceFilter(); f != nil { market.MaxPrice = util.MustParseFloat(f.MaxPrice) market.MinPrice = util.MustParseFloat(f.MinPrice) market.TickSize = util.MustParseFloat(f.TickSize) } markets[symbol.Symbol] = market } return markets, nil } func (e *Exchange) QueryAveragePrice(ctx context.Context, symbol string) (float64, error) { resp, err := e.Client.NewAveragePriceService().Symbol(symbol).Do(ctx) if err != nil { return 0, err } return util.MustParseFloat(resp.Price), nil } func (e *Exchange) NewStream() types.Stream { return NewStream(e.Client) } func (e *Exchange) QueryWithdrawHistory(ctx context.Context, asset string, since, until time.Time) (allWithdraws []types.Withdraw, err error) { startTime := since txIDs := map[string]struct{}{} for startTime.Before(until) { // startTime ~ endTime must be in 90 days endTime := startTime.AddDate(0, 0, 60) if endTime.After(until) { endTime = until } req := e.Client.NewListWithdrawsService() if len(asset) > 0 { req.Asset(asset) } withdraws, err := req. StartTime(startTime.UnixNano() / int64(time.Millisecond)). EndTime(endTime.UnixNano() / int64(time.Millisecond)). Do(ctx) if err != nil { return allWithdraws, err } for _, d := range withdraws { if _, ok := txIDs[d.TxID]; ok { continue } status := "" switch d.Status { case 0: status = "email_sent" case 1: status = "cancelled" case 2: status = "awaiting_approval" case 3: status = "rejected" case 4: status = "processing" case 5: status = "failure" case 6: status = "completed" default: status = fmt.Sprintf("unsupported code: %d", d.Status) } txIDs[d.TxID] = struct{}{} allWithdraws = append(allWithdraws, types.Withdraw{ ApplyTime: time.Unix(0, d.ApplyTime*int64(time.Millisecond)), Asset: d.Asset, Amount: d.Amount, Address: d.Address, AddressTag: d.AddressTag, TransactionID: d.TxID, TransactionFee: d.TransactionFee, WithdrawOrderID: d.WithdrawOrderID, Network: d.Network, Status: status, }) } startTime = endTime } return allWithdraws, nil } func (e *Exchange) QueryDepositHistory(ctx context.Context, asset string, since, until time.Time) (allDeposits []types.Deposit, err error) { startTime := since txIDs := map[string]struct{}{} for startTime.Before(until) { // startTime ~ endTime must be in 90 days endTime := startTime.AddDate(0, 0, 60) if endTime.After(until) { endTime = until } req := e.Client.NewListDepositsService() if len(asset) > 0 { req.Asset(asset) } deposits, err := req. StartTime(startTime.UnixNano() / int64(time.Millisecond)). EndTime(endTime.UnixNano() / int64(time.Millisecond)). Do(ctx) if err != nil { return nil, err } for _, d := range deposits { if _, ok := txIDs[d.TxID]; ok { continue } // 0(0:pending,6: credited but cannot withdraw, 1:success) status := types.DepositStatus(fmt.Sprintf("code: %d", d.Status)) switch d.Status { case 0: status = types.DepositPending case 6: // https://www.binance.com/en/support/faq/115003736451 status = types.DepositCredited case 1: status = types.DepositSuccess } txIDs[d.TxID] = struct{}{} allDeposits = append(allDeposits, types.Deposit{ Time: time.Unix(0, d.InsertTime*int64(time.Millisecond)), Asset: d.Asset, Amount: d.Amount, Address: d.Address, AddressTag: d.AddressTag, TransactionID: d.TxID, Status: status, }) } startTime = endTime } return allDeposits, nil } func (e *Exchange) QueryAccountBalances(ctx context.Context) (types.BalanceMap, error) { account, err := e.QueryAccount(ctx) if err != nil { return nil, err } return account.Balances(), nil } // PlatformFeeCurrency func (e *Exchange) PlatformFeeCurrency() string { return "BNB" } func (e *Exchange) QueryAccount(ctx context.Context) (*types.Account, error) { account, err := e.Client.NewGetAccountService().Do(ctx) if err != nil { return nil, err } var balances = map[string]types.Balance{} for _, b := range account.Balances { balances[b.Asset] = types.Balance{ Currency: b.Asset, Available: util.MustParseFloat(b.Free), Locked: util.MustParseFloat(b.Locked), } } a := &types.Account{ MakerCommission: int(account.MakerCommission), TakerCommission: int(account.TakerCommission), } a.UpdateBalances(balances) return a, nil } func (e *Exchange) QueryOpenOrders(ctx context.Context, symbol string) (orders []types.Order, err error) { binanceOrders, err := e.Client.NewListOpenOrdersService().Symbol(symbol).Do(ctx) if err != nil { return orders, err } for _, binanceOrder := range binanceOrders { order, err := toGlobalOrder(binanceOrder) if err != nil { return orders, err } orders = append(orders, *order) } return orders, err } func (e *Exchange) QueryClosedOrders(ctx context.Context, symbol string, since, until time.Time, lastOrderID uint64) (orders []types.Order, err error) { if until.Sub(since) >= 24*time.Hour { until = since.Add(24*time.Hour - time.Millisecond) } time.Sleep(3 * time.Second) log.Infof("querying closed orders %s from %s <=> %s ...", symbol, since, until) req := e.Client.NewListOrdersService(). Symbol(symbol) if lastOrderID > 0 { req.OrderID(int64(lastOrderID)) } else { req.StartTime(since.UnixNano() / int64(time.Millisecond)). EndTime(until.UnixNano() / int64(time.Millisecond)) } binanceOrders, err := req.Do(ctx) if err != nil { return orders, err } if len(binanceOrders) == 0 { return orders, nil } for _, binanceOrder := range binanceOrders { order, err := toGlobalOrder(binanceOrder) if err != nil { return orders, err } orders = append(orders, *order) } return orders, nil } func (e *Exchange) CancelOrders(ctx context.Context, orders ...types.Order) (err2 error) { for _, o := range orders { var req = e.Client.NewCancelOrderService() // Mandatory req.Symbol(o.Symbol) if o.OrderID > 0 { req.OrderID(int64(o.OrderID)) } else if len(o.ClientOrderID) > 0 { req.NewClientOrderID(o.ClientOrderID) } _, err := req.Do(ctx) if err != nil { log.WithError(err).Errorf("order cancel error") err2 = err } } return err2 } func (e *Exchange) SubmitOrders(ctx context.Context, orders ...types.SubmitOrder) (createdOrders types.OrderSlice, err error) { for _, order := range orders { orderType, err := toLocalOrderType(order.Type) if err != nil { return createdOrders, err } clientOrderID := uuid.New().String() if len(order.ClientOrderID) > 0 { clientOrderID = order.ClientOrderID } req := e.Client.NewCreateOrderService(). Symbol(order.Symbol). Side(binance.SideType(order.Side)). NewClientOrderID(clientOrderID). Type(orderType) req.Quantity(order.QuantityString) if len(order.PriceString) > 0 { req.Price(order.PriceString) } if len(order.TimeInForce) > 0 { // TODO: check the TimeInForce value req.TimeInForce(binance.TimeInForceType(order.TimeInForce)) } response, err := req.Do(ctx) if err != nil { return createdOrders, err } log.Infof("order creation response: %+v", response) retOrder := binance.Order{ Symbol: response.Symbol, OrderID: response.OrderID, ClientOrderID: response.ClientOrderID, Price: response.Price, OrigQuantity: response.OrigQuantity, ExecutedQuantity: response.ExecutedQuantity, CummulativeQuoteQuantity: response.CummulativeQuoteQuantity, Status: response.Status, TimeInForce: response.TimeInForce, Type: response.Type, Side: response.Side, // StopPrice: // IcebergQuantity: Time: response.TransactTime, // UpdateTime: // IsWorking: , } createdOrder, err := toGlobalOrder(&retOrder) if err != nil { return createdOrders, err } if createdOrder == nil { return createdOrders, errors.New("nil converted order") } createdOrders = append(createdOrders, *createdOrder) } return createdOrders, err } // QueryKLines queries the Kline/candlestick bars for a symbol. Klines are uniquely identified by their open time. func (e *Exchange) QueryKLines(ctx context.Context, symbol string, interval types.Interval, options types.KLineQueryOptions) ([]types.KLine, error) { var limit = 500 if options.Limit > 0 { // default limit == 500 limit = options.Limit } log.Infof("querying kline %s %s %v", symbol, interval, options) // avoid rate limit time.Sleep(500 * time.Millisecond) req := e.Client.NewKlinesService(). Symbol(symbol). Interval(string(interval)). Limit(limit) if options.StartTime != nil { req.StartTime(options.StartTime.UnixNano() / int64(time.Millisecond)) } if options.EndTime != nil { req.EndTime(options.EndTime.UnixNano() / int64(time.Millisecond)) } resp, err := req.Do(ctx) if err != nil { return nil, err } var kLines []types.KLine for _, k := range resp { kLines = append(kLines, types.KLine{ Exchange: "binance", Symbol: symbol, Interval: interval, StartTime: time.Unix(0, k.OpenTime*int64(time.Millisecond)), EndTime: time.Unix(0, k.CloseTime*int64(time.Millisecond)), Open: util.MustParseFloat(k.Open), Close: util.MustParseFloat(k.Close), High: util.MustParseFloat(k.High), Low: util.MustParseFloat(k.Low), Volume: util.MustParseFloat(k.Volume), QuoteVolume: util.MustParseFloat(k.QuoteAssetVolume), LastTradeID: 0, NumberOfTrades: uint64(k.TradeNum), Closed: true, }) } return kLines, nil } func (e *Exchange) QueryTrades(ctx context.Context, symbol string, options *types.TradeQueryOptions) (trades []types.Trade, err error) { req := e.Client.NewListTradesService(). Limit(1000). Symbol(symbol) if options.Limit > 0 { req.Limit(int(options.Limit)) } if options.StartTime != nil { req.StartTime(options.StartTime.UnixNano() / int64(time.Millisecond)) } if options.EndTime != nil { req.EndTime(options.EndTime.UnixNano() / int64(time.Millisecond)) } if options.LastTradeID > 0 { req.FromID(options.LastTradeID) } remoteTrades, err := req.Do(ctx) if err != nil { return nil, err } for _, t := range remoteTrades { localTrade, err := toGlobalTrade(*t) if err != nil { log.WithError(err).Errorf("can not convert binance trade: %+v", t) continue } log.Infof("trade: %d %s % 4s price: % 13s volume: % 11s %6s % 5s %s", t.ID, t.Symbol, localTrade.Side, t.Price, t.Quantity, BuyerOrSellerLabel(t), MakerOrTakerLabel(t), localTrade.Time) trades = append(trades, *localTrade) } return trades, nil } func (e *Exchange) BatchQueryKLines(ctx context.Context, symbol string, interval types.Interval, startTime, endTime time.Time) ([]types.KLine, error) { var allKLines []types.KLine for startTime.Before(endTime) { klines, err := e.QueryKLines(ctx, symbol, interval, types.KLineQueryOptions{ StartTime: &startTime, Limit: 1000, }) if err != nil { return nil, err } for _, kline := range klines { if kline.EndTime.After(endTime) { return allKLines, nil } allKLines = append(allKLines, kline) startTime = kline.EndTime } // avoid rate limit time.Sleep(100 * time.Millisecond) } return allKLines, nil }