package hitbtc import ( "context" "errors" "fmt" "sort" "strconv" "strings" "time" "github.com/thrasher-corp/gocryptotrader/common" "github.com/thrasher-corp/gocryptotrader/config" "github.com/thrasher-corp/gocryptotrader/currency" exchange "github.com/thrasher-corp/gocryptotrader/exchanges" "github.com/thrasher-corp/gocryptotrader/exchanges/account" "github.com/thrasher-corp/gocryptotrader/exchanges/asset" "github.com/thrasher-corp/gocryptotrader/exchanges/deposit" "github.com/thrasher-corp/gocryptotrader/exchanges/fundingrate" "github.com/thrasher-corp/gocryptotrader/exchanges/futures" "github.com/thrasher-corp/gocryptotrader/exchanges/kline" "github.com/thrasher-corp/gocryptotrader/exchanges/order" "github.com/thrasher-corp/gocryptotrader/exchanges/orderbook" "github.com/thrasher-corp/gocryptotrader/exchanges/protocol" "github.com/thrasher-corp/gocryptotrader/exchanges/request" "github.com/thrasher-corp/gocryptotrader/exchanges/stream" "github.com/thrasher-corp/gocryptotrader/exchanges/stream/buffer" "github.com/thrasher-corp/gocryptotrader/exchanges/ticker" "github.com/thrasher-corp/gocryptotrader/exchanges/trade" "github.com/thrasher-corp/gocryptotrader/log" "github.com/thrasher-corp/gocryptotrader/portfolio/withdraw" ) // SetDefaults sets default settings for hitbtc func (h *HitBTC) SetDefaults() { h.Name = "HitBTC" h.Enabled = true h.Verbose = true h.API.CredentialsValidator.RequiresKey = true h.API.CredentialsValidator.RequiresSecret = true requestFmt := ¤cy.PairFormat{Uppercase: true} configFmt := ¤cy.PairFormat{Delimiter: currency.DashDelimiter, Uppercase: true} err := h.SetGlobalPairsManager(requestFmt, configFmt, asset.Spot) if err != nil { log.Errorln(log.ExchangeSys, err) } h.Features = exchange.Features{ Supports: exchange.FeaturesSupported{ REST: true, Websocket: true, RESTCapabilities: protocol.Features{ TickerBatching: true, TickerFetching: true, KlineFetching: true, TradeFetching: true, OrderbookFetching: true, AutoPairUpdates: true, AccountInfo: true, GetOrder: true, GetOrders: true, CancelOrders: true, CancelOrder: true, SubmitOrder: true, ModifyOrder: true, UserTradeHistory: true, CryptoDeposit: true, CryptoWithdrawal: true, TradeFee: true, CryptoDepositFee: true, CryptoWithdrawalFee: true, }, WebsocketCapabilities: protocol.Features{ TickerFetching: true, OrderbookFetching: true, Subscribe: true, Unsubscribe: true, AuthenticatedEndpoints: true, SubmitOrder: true, CancelOrder: true, MessageSequenceNumbers: true, GetOrders: true, GetOrder: true, }, WithdrawPermissions: exchange.AutoWithdrawCrypto | exchange.NoFiatWithdrawals, Kline: kline.ExchangeCapabilitiesSupported{ Intervals: true, DateRanges: true, }, }, Enabled: exchange.FeaturesEnabled{ AutoPairUpdates: true, Kline: kline.ExchangeCapabilitiesEnabled{ Intervals: kline.DeployExchangeIntervals( kline.IntervalCapacity{Interval: kline.OneMin}, kline.IntervalCapacity{Interval: kline.ThreeMin}, kline.IntervalCapacity{Interval: kline.FiveMin}, kline.IntervalCapacity{Interval: kline.FifteenMin}, kline.IntervalCapacity{Interval: kline.ThirtyMin}, kline.IntervalCapacity{Interval: kline.OneHour}, kline.IntervalCapacity{Interval: kline.FourHour}, kline.IntervalCapacity{Interval: kline.OneDay}, kline.IntervalCapacity{Interval: kline.SevenDay}, kline.IntervalCapacity{Interval: kline.OneMonth}, ), GlobalResultLimit: 1000, }, }, } h.Requester, err = request.New(h.Name, common.NewHTTPClientWithTimeout(exchange.DefaultHTTPTimeout), request.WithLimiter(SetRateLimit())) if err != nil { log.Errorln(log.ExchangeSys, err) } h.API.Endpoints = h.NewEndpoints() err = h.API.Endpoints.SetDefaultEndpoints(map[exchange.URL]string{ exchange.RestSpot: apiURL, exchange.WebsocketSpot: hitbtcWebsocketAddress, }) if err != nil { log.Errorln(log.ExchangeSys, err) } h.Websocket = stream.NewWebsocket() h.WebsocketResponseMaxLimit = exchange.DefaultWebsocketResponseMaxLimit h.WebsocketResponseCheckTimeout = exchange.DefaultWebsocketResponseCheckTimeout h.WebsocketOrderbookBufferLimit = exchange.DefaultWebsocketOrderbookBufferLimit } // Setup sets user exchange configuration settings func (h *HitBTC) Setup(exch *config.Exchange) error { err := exch.Validate() if err != nil { return err } if !exch.Enabled { h.SetEnabled(false) return nil } err = h.SetupDefaults(exch) if err != nil { return err } wsRunningURL, err := h.API.Endpoints.GetURL(exchange.WebsocketSpot) if err != nil { return err } err = h.Websocket.Setup(&stream.WebsocketSetup{ ExchangeConfig: exch, DefaultURL: hitbtcWebsocketAddress, RunningURL: wsRunningURL, Connector: h.WsConnect, Subscriber: h.Subscribe, Unsubscriber: h.Unsubscribe, GenerateSubscriptions: h.GenerateDefaultSubscriptions, Features: &h.Features.Supports.WebsocketCapabilities, OrderbookBufferConfig: buffer.Config{ SortBuffer: true, SortBufferByUpdateIDs: true, }, }) if err != nil { return err } return h.Websocket.SetupNewConnection(stream.ConnectionSetup{ RateLimit: rateLimit, ResponseCheckTimeout: exch.WebsocketResponseCheckTimeout, ResponseMaxLimit: exch.WebsocketResponseMaxLimit, }) } // FetchTradablePairs returns a list of the exchanges tradable pairs func (h *HitBTC) FetchTradablePairs(ctx context.Context, _ asset.Item) (currency.Pairs, error) { symbols, err := h.GetSymbolsDetailed(ctx) if err != nil { return nil, err } pairs := make([]currency.Pair, len(symbols)) for x := range symbols { index := strings.Index(symbols[x].ID, symbols[x].QuoteCurrency) var pair currency.Pair pair, err = currency.NewPairFromStrings(symbols[x].ID[:index], symbols[x].ID[index:]) if err != nil { return nil, err } pairs[x] = pair } return pairs, nil } // UpdateTradablePairs updates the exchanges available pairs and stores // them in the exchanges config func (h *HitBTC) UpdateTradablePairs(ctx context.Context, forceUpdate bool) error { pairs, err := h.FetchTradablePairs(ctx, asset.Spot) if err != nil { return err } err = h.UpdatePairs(pairs, asset.Spot, false, forceUpdate) if err != nil { return err } return h.EnsureOnePairEnabled() } // UpdateTickers updates the ticker for all currency pairs of a given asset type func (h *HitBTC) UpdateTickers(ctx context.Context, a asset.Item) error { tick, err := h.GetTickers(ctx) if err != nil { return err } for x := range tick { var pair currency.Pair var enabled bool pair, enabled, err = h.MatchSymbolCheckEnabled(tick[x].Symbol, a, false) if err != nil { if !errors.Is(err, currency.ErrPairNotFound) { return err } } if !enabled { continue } err = ticker.ProcessTicker(&ticker.Price{ Last: tick[x].Last, High: tick[x].High, Low: tick[x].Low, Bid: tick[x].Bid, Ask: tick[x].Ask, Volume: tick[x].Volume, QuoteVolume: tick[x].VolumeQuote, Open: tick[x].Open, Pair: pair, LastUpdated: tick[x].Timestamp, ExchangeName: h.Name, AssetType: a}) if err != nil { return err } } return nil } // UpdateTicker updates and returns the ticker for a currency pair func (h *HitBTC) UpdateTicker(ctx context.Context, p currency.Pair, a asset.Item) (*ticker.Price, error) { if err := h.UpdateTickers(ctx, a); err != nil { return nil, err } return ticker.GetTicker(h.Name, p, a) } // FetchTicker returns the ticker for a currency pair func (h *HitBTC) FetchTicker(ctx context.Context, p currency.Pair, assetType asset.Item) (*ticker.Price, error) { tickerNew, err := ticker.GetTicker(h.Name, p, assetType) if err != nil { return h.UpdateTicker(ctx, p, assetType) } return tickerNew, nil } // FetchOrderbook returns orderbook base on the currency pair func (h *HitBTC) FetchOrderbook(ctx context.Context, p currency.Pair, assetType asset.Item) (*orderbook.Base, error) { ob, err := orderbook.Get(h.Name, p, assetType) if err != nil { return h.UpdateOrderbook(ctx, p, assetType) } return ob, nil } // UpdateOrderbook updates and returns the orderbook for a currency pair func (h *HitBTC) UpdateOrderbook(ctx context.Context, c currency.Pair, assetType asset.Item) (*orderbook.Base, error) { if c.IsEmpty() { return nil, currency.ErrCurrencyPairEmpty } if err := h.CurrencyPairs.IsAssetEnabled(assetType); err != nil { return nil, err } book := &orderbook.Base{ Exchange: h.Name, Pair: c, Asset: assetType, VerifyOrderbook: h.CanVerifyOrderbook, } fPair, err := h.FormatExchangeCurrency(c, assetType) if err != nil { return book, err } orderbookNew, err := h.GetOrderbook(ctx, fPair.String(), 1000) if err != nil { return book, err } book.Bids = make(orderbook.Items, len(orderbookNew.Bids)) for x := range orderbookNew.Bids { book.Bids[x] = orderbook.Item{ Amount: orderbookNew.Bids[x].Amount, Price: orderbookNew.Bids[x].Price, } } book.Asks = make(orderbook.Items, len(orderbookNew.Asks)) for x := range orderbookNew.Asks { book.Asks[x] = orderbook.Item{ Amount: orderbookNew.Asks[x].Amount, Price: orderbookNew.Asks[x].Price, } } err = book.Process() if err != nil { return book, err } return orderbook.Get(h.Name, c, assetType) } // UpdateAccountInfo retrieves balances for all enabled currencies for the // HitBTC exchange func (h *HitBTC) UpdateAccountInfo(ctx context.Context, assetType asset.Item) (account.Holdings, error) { var response account.Holdings response.Exchange = h.Name accountBalance, err := h.GetBalances(ctx) if err != nil { return response, err } currencies := make([]account.Balance, 0, len(accountBalance)) for i := range accountBalance { currencies = append(currencies, account.Balance{ Currency: currency.NewCode(accountBalance[i].Currency), Total: accountBalance[i].Available + accountBalance[i].Reserved, Hold: accountBalance[i].Reserved, Free: accountBalance[i].Available, }) } response.Accounts = append(response.Accounts, account.SubAccount{ AssetType: assetType, Currencies: currencies, }) creds, err := h.GetCredentials(ctx) if err != nil { return account.Holdings{}, err } err = account.Process(&response, creds) if err != nil { return account.Holdings{}, err } return response, nil } // FetchAccountInfo retrieves balances for all enabled currencies func (h *HitBTC) FetchAccountInfo(ctx context.Context, assetType asset.Item) (account.Holdings, error) { creds, err := h.GetCredentials(ctx) if err != nil { return account.Holdings{}, err } acc, err := account.GetHoldings(h.Name, creds, assetType) if err != nil { return h.UpdateAccountInfo(ctx, assetType) } return acc, nil } // GetAccountFundingHistory returns funding history, deposits and // withdrawals func (h *HitBTC) GetAccountFundingHistory(_ context.Context) ([]exchange.FundingHistory, error) { // TODO supported in v3 API return nil, common.ErrFunctionNotSupported } // GetWithdrawalsHistory returns previous withdrawals data func (h *HitBTC) GetWithdrawalsHistory(_ context.Context, _ currency.Code, _ asset.Item) ([]exchange.WithdrawalHistory, error) { // TODO supported in v3 API return nil, common.ErrFunctionNotSupported } // GetRecentTrades returns the most recent trades for a currency and asset func (h *HitBTC) GetRecentTrades(ctx context.Context, p currency.Pair, assetType asset.Item) ([]trade.Data, error) { return h.GetHistoricTrades(ctx, p, assetType, time.Now().Add(-time.Minute*15), time.Now()) } // GetHistoricTrades returns historic trade data within the timeframe provided func (h *HitBTC) GetHistoricTrades(ctx context.Context, p currency.Pair, assetType asset.Item, timestampStart, timestampEnd time.Time) ([]trade.Data, error) { if err := common.StartEndTimeCheck(timestampStart, timestampEnd); err != nil { return nil, fmt.Errorf("invalid time range supplied. Start: %v End %v %w", timestampStart, timestampEnd, err) } var err error p, err = h.FormatExchangeCurrency(p, assetType) if err != nil { return nil, err } ts := timestampStart var resp []trade.Data limit := 1000 allTrades: for { var tradeData []TradeHistory tradeData, err = h.GetTrades(ctx, p.String(), "", "", ts.UnixMilli(), timestampEnd.UnixMilli(), int64(limit), 0) if err != nil { return nil, err } for i := range tradeData { if tradeData[i].Timestamp.Before(timestampStart) || tradeData[i].Timestamp.After(timestampEnd) { break allTrades } var side order.Side side, err = order.StringToOrderSide(tradeData[i].Side) if err != nil { return nil, err } resp = append(resp, trade.Data{ Exchange: h.Name, TID: strconv.FormatInt(tradeData[i].ID, 10), CurrencyPair: p, AssetType: assetType, Side: side, Price: tradeData[i].Price, Amount: tradeData[i].Quantity, Timestamp: tradeData[i].Timestamp, }) if i == len(tradeData)-1 { if ts.Equal(tradeData[i].Timestamp) { // reached end of trades to crawl break allTrades } ts = tradeData[i].Timestamp } } if len(tradeData) != limit { break allTrades } } err = h.AddTradesToBuffer(resp...) if err != nil { return nil, err } sort.Sort(trade.ByDate(resp)) return resp, nil } // SubmitOrder submits a new order func (h *HitBTC) SubmitOrder(ctx context.Context, o *order.Submit) (*order.SubmitResponse, error) { err := o.Validate() if err != nil { return nil, err } var orderID string status := order.New if h.Websocket.IsConnected() && h.Websocket.CanUseAuthenticatedEndpoints() { var response *WsSubmitOrderSuccessResponse response, err = h.wsPlaceOrder(o.Pair, o.Side.String(), o.Amount, o.Price) if err != nil { return nil, err } orderID = strconv.FormatInt(response.ID, 10) if response.Result.CumQuantity == o.Amount { status = order.Filled } } else { var fPair currency.Pair fPair, err = h.FormatExchangeCurrency(o.Pair, o.AssetType) if err != nil { return nil, err } var response OrderResponse response, err = h.PlaceOrder(ctx, fPair.String(), o.Price, o.Amount, o.Type.Lower(), o.Side.Lower()) if err != nil { return nil, err } orderID = strconv.FormatInt(response.OrderNumber, 10) if o.Type == order.Market { status = order.Filled } } resp, err := o.DeriveSubmitResponse(orderID) if err != nil { return nil, err } resp.Status = status return resp, nil } // ModifyOrder will allow of changing orderbook placement and limit to // market conversion func (h *HitBTC) ModifyOrder(_ context.Context, _ *order.Modify) (*order.ModifyResponse, error) { return nil, common.ErrFunctionNotSupported } // CancelOrder cancels an order by its corresponding ID number func (h *HitBTC) CancelOrder(ctx context.Context, o *order.Cancel) error { if err := o.Validate(o.StandardCancel()); err != nil { return err } orderIDInt, err := strconv.ParseInt(o.OrderID, 10, 64) if err != nil { return err } _, err = h.CancelExistingOrder(ctx, orderIDInt) return err } // CancelBatchOrders cancels an orders by their corresponding ID numbers func (h *HitBTC) CancelBatchOrders(_ context.Context, _ []order.Cancel) (*order.CancelBatchResponse, error) { return nil, common.ErrFunctionNotSupported } // GetServerTime returns the current exchange server time. func (h *HitBTC) GetServerTime(_ context.Context, _ asset.Item) (time.Time, error) { return time.Time{}, common.ErrFunctionNotSupported } // CancelAllOrders cancels all orders associated with a currency pair func (h *HitBTC) CancelAllOrders(ctx context.Context, _ *order.Cancel) (order.CancelAllResponse, error) { cancelAllOrdersResponse := order.CancelAllResponse{ Status: make(map[string]string), } resp, err := h.CancelAllExistingOrders(ctx) if err != nil { return cancelAllOrdersResponse, err } for i := range resp { if resp[i].Status != "canceled" { cancelAllOrdersResponse.Status[strconv.FormatInt(resp[i].ID, 10)] = fmt.Sprintf("Could not cancel order %v. Status: %v", resp[i].ID, resp[i].Status) } } return cancelAllOrdersResponse, nil } // GetOrderInfo returns order information based on order ID func (h *HitBTC) GetOrderInfo(ctx context.Context, orderID string, pair currency.Pair, assetType asset.Item) (*order.Detail, error) { if pair.IsEmpty() { return nil, currency.ErrCurrencyPairEmpty } if err := h.CurrencyPairs.IsAssetEnabled(assetType); err != nil { return nil, err } resp, err := h.GetActiveOrderByClientOrderID(ctx, orderID) if err != nil { return nil, err } format, err := h.GetPairFormat(assetType, true) if err != nil { return nil, err } pair = pair.Format(format) var side order.Side side, err = order.StringToOrderSide(resp.Side) if err != nil { return nil, err } return &order.Detail{ OrderID: resp.ID, Amount: resp.Quantity, Exchange: h.Name, Price: resp.Price, Date: resp.CreatedAt, Side: side, Pair: pair, }, nil } // GetDepositAddress returns a deposit address for a specified currency func (h *HitBTC) GetDepositAddress(ctx context.Context, currency currency.Code, _, _ string) (*deposit.Address, error) { resp, err := h.GetDepositAddresses(ctx, currency.String()) if err != nil { return nil, err } return &deposit.Address{ Address: resp.Address, Tag: resp.PaymentID, }, nil } // WithdrawCryptocurrencyFunds returns a withdrawal ID when a withdrawal is // submitted func (h *HitBTC) WithdrawCryptocurrencyFunds(ctx context.Context, withdrawRequest *withdraw.Request) (*withdraw.ExchangeResponse, error) { if err := withdrawRequest.Validate(); err != nil { return nil, err } v, err := h.Withdraw(ctx, withdrawRequest.Currency.String(), withdrawRequest.Crypto.Address, withdrawRequest.Amount) if err != nil { return nil, err } return &withdraw.ExchangeResponse{ Status: common.IsEnabled(v), }, err } // WithdrawFiatFunds returns a withdrawal ID when a // withdrawal is submitted func (h *HitBTC) WithdrawFiatFunds(_ context.Context, _ *withdraw.Request) (*withdraw.ExchangeResponse, error) { return nil, common.ErrFunctionNotSupported } // WithdrawFiatFundsToInternationalBank returns a withdrawal ID when a // withdrawal is submitted func (h *HitBTC) WithdrawFiatFundsToInternationalBank(_ context.Context, _ *withdraw.Request) (*withdraw.ExchangeResponse, error) { return nil, common.ErrFunctionNotSupported } // GetFeeByType returns an estimate of fee based on type of transaction func (h *HitBTC) GetFeeByType(ctx context.Context, feeBuilder *exchange.FeeBuilder) (float64, error) { if feeBuilder == nil { return 0, fmt.Errorf("%T %w", feeBuilder, common.ErrNilPointer) } if !h.AreCredentialsValid(ctx) && // Todo check connection status feeBuilder.FeeType == exchange.CryptocurrencyTradeFee { feeBuilder.FeeType = exchange.OfflineTradeFee } return h.GetFee(ctx, feeBuilder) } // GetActiveOrders retrieves any orders that are active/open func (h *HitBTC) GetActiveOrders(ctx context.Context, req *order.MultiOrderRequest) (order.FilteredOrders, error) { err := req.Validate() if err != nil { return nil, err } if len(req.Pairs) == 0 { return nil, errors.New("currency must be supplied") } var allOrders []OrderHistoryResponse for i := range req.Pairs { var resp []OrderHistoryResponse resp, err = h.GetOpenOrders(ctx, req.Pairs[i].String()) if err != nil { return nil, err } allOrders = append(allOrders, resp...) } format, err := h.GetPairFormat(asset.Spot, false) if err != nil { return nil, err } orders := make([]order.Detail, len(allOrders)) for i := range allOrders { var symbol currency.Pair symbol, err = currency.NewPairDelimiter(allOrders[i].Symbol, format.Delimiter) if err != nil { return nil, err } var side order.Side side, err = order.StringToOrderSide(allOrders[i].Side) if err != nil { return nil, err } orders[i] = order.Detail{ OrderID: allOrders[i].ID, Amount: allOrders[i].Quantity, Exchange: h.Name, Price: allOrders[i].Price, Date: allOrders[i].CreatedAt, Side: side, Pair: symbol, } } return req.Filter(h.Name, orders), nil } // GetOrderHistory retrieves account order information // Can Limit response to specific order status func (h *HitBTC) GetOrderHistory(ctx context.Context, req *order.MultiOrderRequest) (order.FilteredOrders, error) { err := req.Validate() if err != nil { return nil, err } if len(req.Pairs) == 0 { return nil, errors.New("currency must be supplied") } var allOrders []OrderHistoryResponse for i := range req.Pairs { var resp []OrderHistoryResponse resp, err = h.GetOrders(ctx, req.Pairs[i].String()) if err != nil { return nil, err } allOrders = append(allOrders, resp...) } format, err := h.GetPairFormat(asset.Spot, false) if err != nil { return nil, err } orders := make([]order.Detail, len(allOrders)) for i := range allOrders { var pair currency.Pair pair, err = currency.NewPairDelimiter(allOrders[i].Symbol, format.Delimiter) if err != nil { return nil, err } var side order.Side side, err = order.StringToOrderSide(allOrders[i].Side) if err != nil { log.Errorf(log.ExchangeSys, "%s %v", h.Name, err) } var status order.Status status, err = order.StringToOrderStatus(allOrders[i].Status) if err != nil { log.Errorf(log.ExchangeSys, "%s %v", h.Name, err) } detail := order.Detail{ OrderID: allOrders[i].ID, Amount: allOrders[i].Quantity, ExecutedAmount: allOrders[i].CumQuantity, RemainingAmount: allOrders[i].Quantity - allOrders[i].CumQuantity, Exchange: h.Name, Price: allOrders[i].Price, AverageExecutedPrice: allOrders[i].AvgPrice, Date: allOrders[i].CreatedAt, LastUpdated: allOrders[i].UpdatedAt, Side: side, Status: status, Pair: pair, } detail.InferCostsAndTimes() orders[i] = detail } return req.Filter(h.Name, orders), nil } // AuthenticateWebsocket sends an authentication message to the websocket func (h *HitBTC) AuthenticateWebsocket(ctx context.Context) error { return h.wsLogin(ctx) } // ValidateAPICredentials validates current credentials used for wrapper // functionality func (h *HitBTC) ValidateAPICredentials(ctx context.Context, assetType asset.Item) error { _, err := h.UpdateAccountInfo(ctx, assetType) return h.CheckTransientError(err) } // FormatExchangeKlineInterval returns Interval to exchange formatted string func (h *HitBTC) FormatExchangeKlineInterval(in kline.Interval) (string, error) { switch in { case kline.OneMin: return "M1", nil case kline.ThreeMin: return "M3", nil case kline.FiveMin: return "M5", nil case kline.FifteenMin: return "M15", nil case kline.ThirtyMin: return "M30", nil case kline.OneHour: return "H1", nil case kline.FourHour: return "H4", nil case kline.OneDay: return "D1", nil case kline.OneWeek: return "D7", nil case kline.OneMonth: return "1M", nil } return "", fmt.Errorf("%w %v", kline.ErrInvalidInterval, in) } // GetHistoricCandles returns candles between a time period for a set time interval func (h *HitBTC) GetHistoricCandles(ctx context.Context, pair currency.Pair, a asset.Item, interval kline.Interval, start, end time.Time) (*kline.Item, error) { req, err := h.GetKlineRequest(pair, a, interval, start, end, false) if err != nil { return nil, err } formattedInterval, err := h.FormatExchangeKlineInterval(req.ExchangeInterval) if err != nil { return nil, err } data, err := h.GetCandles(ctx, req.RequestFormatted.String(), strconv.FormatInt(req.RequestLimit, 10), formattedInterval, req.Start, req.End) if err != nil { return nil, err } timeSeries := make([]kline.Candle, len(data)) for x := range data { timeSeries[x] = kline.Candle{ Time: data[x].Timestamp, Open: data[x].Open, High: data[x].Max, Low: data[x].Min, Close: data[x].Close, Volume: data[x].Volume, } } return req.ProcessResponse(timeSeries) } // GetHistoricCandlesExtended returns candles between a time period for a set time interval func (h *HitBTC) GetHistoricCandlesExtended(ctx context.Context, pair currency.Pair, a asset.Item, interval kline.Interval, start, end time.Time) (*kline.Item, error) { req, err := h.GetKlineExtendedRequest(pair, a, interval, start, end) if err != nil { return nil, err } formattedInterval, err := h.FormatExchangeKlineInterval(req.ExchangeInterval) if err != nil { return nil, err } timeSeries := make([]kline.Candle, 0, req.Size()) for y := range req.RangeHolder.Ranges { var data []ChartData data, err = h.GetCandles(ctx, req.RequestFormatted.String(), strconv.FormatInt(req.RequestLimit, 10), formattedInterval, req.RangeHolder.Ranges[y].Start.Time, req.RangeHolder.Ranges[y].End.Time) if err != nil { return nil, err } for i := range data { timeSeries = append(timeSeries, kline.Candle{ Time: data[i].Timestamp, Open: data[i].Open, High: data[i].Max, Low: data[i].Min, Close: data[i].Close, Volume: data[i].Volume, }) } } return req.ProcessResponse(timeSeries) } // GetFuturesContractDetails returns all contracts from the exchange by asset type func (h *HitBTC) GetFuturesContractDetails(context.Context, asset.Item) ([]futures.Contract, error) { return nil, common.ErrFunctionNotSupported } // GetLatestFundingRates returns the latest funding rates data func (h *HitBTC) GetLatestFundingRates(context.Context, *fundingrate.LatestRateRequest) ([]fundingrate.LatestRateResponse, error) { return nil, common.ErrFunctionNotSupported } // UpdateOrderExecutionLimits updates order execution limits func (h *HitBTC) UpdateOrderExecutionLimits(_ context.Context, _ asset.Item) error { return common.ErrNotYetImplemented }