text: 'use strict';
  
  // ---------------------------------------------------------------------------
  const Exchange = require ('./base/Exchange');
  const { ExchangeError, InvalidOrder, AuthenticationError, InsufficientFunds, BadRequest } = require ('./base/errors');
  
  // ---------------------------------------------------------------------------
  
  module.exports = class bleutrade extends Exchange {
      describe () {
          return this.deepExtend (super.describe (), {
              'id': 'bleutrade',
              'name': 'Bleutrade',
              'countries': ['BR'], // Brazil
              'rateLimit': 1000,
              'certified': false,
              'has': {
                  'cancelOrder': true,
                  'CORS': true,
                  'createLimitOrder': false,
                  'createMarketOrder': false,
                  'createOrder': true,
                  'editOrder': false,
                  'fetchBalance': true,
                  'fetchClosedOrders': true,
                  'fetchCurrencies': true,
                  'fetchDepositAddress': true,
                  'fetchDeposits': true,
                  'fetchLedger': true,
                  'fetchMarkets': true,
                  'fetchOHLCV': true,
                  'fetchOpenOrders': true,
                  'fetchOrderBook': true,
                  'fetchOrders': false,
                  'fetchOrderTrades': false,
                  'fetchTicker': true,
                  'fetchTickers': true,
                  'fetchTrades': false,
                  'fetchWithdrawals': true,
                  'withdraw': false,
              },
              'timeframes': {
                  '1h': '1h',
                  '4h': '4h',
                  '8h': '8h',
                  '1d': '1d',
                  '1w': '1w',
              },
              'hostname': 'bleutrade.com',
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/30303000-b602dbe6-976d-11e7-956d-36c5049c01e7.jpg',
                  'api': {
                      'v3Private': 'https://{hostname}/api/v3/private',
                      'v3Public': 'https://{hostname}/api/v3/public',
                  },
                  'www': 'https://bleutrade.com',
                  'doc': [
                      'https://app.swaggerhub.com/apis-docs/bleu/white-label/3.0.0',
                  ],
                  'fees': 'https://bleutrade.com/fees/',
              },
              'api': {
                  'v3Public': {
                      'get': [
                          'getassets',
                          'getmarkets',
                          'getticker',
                          'getmarketsummary',
                          'getmarketsummaries',
                          'getorderbook',
                          'getmarkethistory',
                          'getcandles',
                      ],
                  },
                  'v3Private': {
                      'get': [
                          'statement',
                      ],
                      'post': [
                          'getbalance',
                          'getbalances',
                          'buylimit',
                          'selllimit',
                          'buylimitami',
                          'selllimitami',
                          'buystoplimit',
                          'sellstoplimit',
                          'ordercancel',
                          'getopenorders',
                          'getcloseorders',
                          'getdeposithistory',
                          'getdepositaddress',
                          'getmytransactions',
                          'withdraw',
                          'directtransfer',
                          'getwithdrawhistory',
                          'getlimits',
                      ],
                  },
              },
              'commonCurrencies': {
                  'EPC': 'Epacoin',
              },
              'exceptions': {
                  'exact': {
                      'ERR_INSUFICIENT_BALANCE': InsufficientFunds,
                      'ERR_LOW_VOLUME': BadRequest,
                      'Invalid form': BadRequest,
                  },
                  'broad': {
                      'Order is not open': InvalidOrder,
                      'Invalid Account / Api KEY / Api Secret': AuthenticationError, // also happens when an invalid nonce is used
                  },
              },
              'fees': {
                  'trading': {
                      'tierBased': false,
                      'percentage': true,
                      'taker': 0.25 / 100,
                      'maker': 0.25 / 100,
                  },
              },
              'options': {
                  'parseOrderStatus': true,
                  'symbolSeparator': '_',
              },
          });
          // undocumented api calls
          // https://bleutrade.com/api/v3/public/tradingview/symbols?symbol=ETH_BTC
          // https://bleutrade.com/api/v3/public/tradingview/config
          // https://bleutrade.com/api/v3/public/tradingview/time
          // https://bleutrade.com/api/v3/private/getcloseorders?market=ETH_BTC
          // https://bleutrade.com/config contains the fees
      }
  
      async fetchCurrencies (params = {}) {
          const response = await this.v3PublicGetGetassets (params);
          const items = response['result'];
          const result = {};
          for (let i = 0; i < items.length; i++) {
              //   { Asset: 'USDT',
              //     AssetLong: 'Tether',
              //     MinConfirmation: 4,
              //     WithdrawTxFee: 1,
              //     WithdrawTxFeePercent: 0,
              //     SystemProtocol: 'ETHERC20',
              //     IsActive: true,
              //     InfoMessage: '',
              //     MaintenanceMode: false,
              //     MaintenanceMessage: '',
              //     FormatPrefix: '',
              //     FormatSufix: '',
              //     DecimalSeparator: '.',
              //     ThousandSeparator: ',',
              //     DecimalPlaces: 8,
              //     Currency: 'USDT',
              //     CurrencyLong: 'Tether',
              //     CoinType: 'ETHERC20' }
              const item = items[i];
              const id = this.safeString (item, 'Asset');
              const code = this.safeCurrencyCode (id);
              result[code] = {
                  'id': id,
                  'code': code,
                  'name': this.safeString (item, 'AssetLong'),
                  'active': this.safeValue (item, 'IsActive') && !this.safeValue (item, 'MaintenanceMode'),
                  'fee': this.safeFloat (item, 'WithdrawTxFee'),
                  'precision': this.safeFloat (item, 'DecimalPlaces'),
                  'info': item,
                  'limits': this.limits,
              };
          }
          return result;
      }
  
      async fetchMarkets (params = {}) {
          // https://github.com/ccxt/ccxt/issues/5668
          const response = await this.v3PublicGetGetmarkets (params);
          const result = [];
          const markets = this.safeValue (response, 'result');
          for (let i = 0; i < markets.length; i++) {
              const market = markets[i];
              //   { MarketName: 'LTC_USDT',
              //     MarketAsset: 'LTC',
              //     BaseAsset: 'USDT',
              //     MarketAssetLong: 'Litecoin',
              //     BaseAssetLong: 'Tether',
              //     IsActive: true,
              //     MinTradeSize: 0.0001,
              //     InfoMessage: '',
              //     MarketCurrency: 'LTC',
              //     BaseCurrency: 'USDT',
              //     MarketCurrencyLong: 'Litecoin',
              //     BaseCurrencyLong: 'Tether' }
              const id = this.safeString (market, 'MarketName');
              const baseId = this.safeString (market, 'MarketAsset');
              const quoteId = this.safeString (market, 'BaseAsset');
              const base = this.safeCurrencyCode (baseId);
              const quote = this.safeCurrencyCode (quoteId);
              const symbol = base + '/' + quote;
              const precision = {
                  'amount': 8,
                  'price': 8,
              };
              const active = this.safeValue (market, 'IsActive', false);
              result.push ({
                  'id': id,
                  'symbol': symbol,
                  'base': base,
                  'quote': quote,
                  'baseId': baseId,
                  'quoteId': quoteId,
                  'active': active,
                  'info': market,
                  'precision': precision,
                  'maker': this.fees['trading']['maker'],
                  'taker': this.fees['trading']['taker'],
                  'limits': {
                      'amount': {
                          'min': this.safeFloat (market, 'MinTradeSize'),
                          'max': undefined,
                      },
                      'price': {
                          'min': Math.pow (10, -precision['price']),
                          'max': undefined,
                      },
                  },
              });
          }
          return result;
      }
  
      async fetchOrderBook (symbol, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const request = {
              'market': this.marketId (symbol),
              'type': 'ALL',
          };
          if (limit !== undefined) {
              request['depth'] = limit; // 50
          }
          const response = await this.v3PublicGetGetorderbook (this.extend (request, params));
          const orderbook = this.safeValue (response, 'result');
          if (!orderbook) {
              throw new ExchangeError (this.id + ' no orderbook data in ' + this.json (response));
          }
          return this.parseOrderBook (orderbook, undefined, 'buy', 'sell', 'Rate', 'Quantity');
      }
  
      async fetchTicker (symbol, params = {}) {
          await this.loadMarkets ();
          const market = this.market (symbol);
          const request = {
              'market': market['id'],
          };
          const response = await this.v3PublicGetGetmarketsummary (this.extend (request, params));
          const ticker = this.safeValue (response, 'result', {});
          return this.parseTicker (ticker, market);
      }
  
      async fetchTickers (symbols = undefined, params = {}) {
          await this.loadMarkets ();
          const response = await this.v3PublicGetGetmarketsummaries (params);
          const result = this.safeValue (response, 'result');
          const tickers = [];
          for (let i = 0; i < result.length; i++) {
              const ticker = this.parseTicker (result[i]);
              tickers.push (ticker);
          }
          return this.filterByArray (tickers, 'symbol', symbols);
      }
  
      parseTicker (ticker, market = undefined) {
          //   { TimeStamp: '2020-01-14 14:32:28',
          //     MarketName: 'LTC_USDT',
          //     MarketAsset: 'LTC',
          //     BaseAsset: 'USDT',
          //     MarketAssetName: 'Litecoin',
          //     BaseAssetName: 'Tether',
          //     PrevDay: 49.2867503,
          //     High: 56.78622664,
          //     Low: 49.27384025,
          //     Last: 53.94,
          //     Average: 51.37509368,
          //     Volume: 1.51282404,
          //     BaseVolume: 77.72147677,
          //     Bid: 53.62070218,
          //     Ask: 53.94,
          //     IsActive: 'true',
          //     InfoMessage: '',
          //     MarketCurrency: 'Litecoin',
          //     BaseCurrency: 'Tether' }
          const timestamp = this.parse8601 (this.safeString (ticker, 'TimeStamp'));
          let symbol = undefined;
          const marketId = this.safeString (ticker, 'MarketName');
          if (marketId !== undefined) {
              if (marketId in this.markets_by_id) {
                  market = this.markets_by_id[marketId];
              } else {
                  symbol = this.parseSymbol (marketId);
              }
          }
          if ((symbol === undefined) && (market !== undefined)) {
              symbol = market['symbol'];
          }
          const previous = this.safeFloat (ticker, 'PrevDay');
          const last = this.safeFloat (ticker, 'Last');
          let change = undefined;
          let percentage = undefined;
          if (last !== undefined) {
              if (previous !== undefined) {
                  change = last - previous;
                  if (previous > 0) {
                      percentage = (change / previous) * 100;
                  }
              }
          }
          return {
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'high': this.safeFloat (ticker, 'High'),
              'low': this.safeFloat (ticker, 'Low'),
              'bid': this.safeFloat (ticker, 'Bid'),
              'bidVolume': undefined,
              'ask': this.safeFloat (ticker, 'Ask'),
              'askVolume': undefined,
              'vwap': undefined,
              'open': previous,
              'close': last,
              'last': last,
              'previousClose': undefined,
              'change': change,
              'percentage': percentage,
              'average': undefined,
              'baseVolume': this.safeFloat (ticker, 'Volume'),
              'quoteVolume': this.safeFloat (ticker, 'BaseVolume'),
              'info': ticker,
          };
      }
  
      parseOHLCV (ohlcv, market = undefined) {
          return [
              this.parse8601 (ohlcv['TimeStamp'] + '+00:00'),
              this.safeFloat (ohlcv, 'Open'),
              this.safeFloat (ohlcv, 'High'),
              this.safeFloat (ohlcv, 'Low'),
              this.safeFloat (ohlcv, 'Close'),
              this.safeFloat (ohlcv, 'Volume'),
          ];
      }
  
      async fetchOHLCV (symbol, timeframe = '15m', since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const market = this.market (symbol);
          const request = {
              'period': this.timeframes[timeframe],
              'market': market['id'],
              'count': limit,
          };
          const response = await this.v3PublicGetGetcandles (this.extend (request, params));
          const result = this.safeValue (response, 'result', []);
          return this.parseOHLCVs (result, market, timeframe, since, limit);
      }
  
      async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
          if (type !== 'limit') {
              // todo: STOP-LIMIT and AMI order types are supported
              throw new InvalidOrder (this.id + ' allows limit orders only');
          }
          await this.loadMarkets ();
          const request = {
              'rate': this.priceToPrecision (symbol, price),
              'quantity': this.amountToPrecision (symbol, amount),
              'tradeType': (side === 'buy') ? '1' : '0',
              'market': this.marketId (symbol),
          };
          let response = undefined;
          if (side === 'buy') {
              response = await this.v3PrivatePostBuylimit (this.extend (request, params));
          } else {
              response = await this.v3PrivatePostSelllimit (this.extend (request, params));
          }
          //   { success:  true,
          //     message: "",
          //     result: "161105236" },
          return {
              'info': response,
              'id': this.safeString (response, 'result'),
          };
      }
  
      async cancelOrder (id, symbol = undefined, params = {}) {
          const request = {
              'orderid': id,
          };
          const response = await this.v3PrivatePostOrdercancel (this.extend (request, params));
          // { success: true, message: '', result: '' }
          return response;
      }
  
      async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          let market = undefined;
          const request = {};
          if (symbol !== undefined) {
              market = this.market (symbol);
              request['market'] = market['id'];
          }
          const response = await this.v3PrivatePostGetopenorders (this.extend (request, params));
          const items = this.safeValue (response, 'result', []);
          return this.parseOrders (items, market, since, limit);
      }
  
      parseSymbol (id) {
          let [ base, quote ] = id.split (this.options['symbolSeparator']);
          base = this.safeCurrencyCode (base);
          quote = this.safeCurrencyCode (quote);
          return base + '/' + quote;
      }
  
      async fetchBalance (params = {}) {
          await this.loadMarkets ();
          const response = await this.v3PrivatePostGetbalances (params);
          const result = { 'info': response };
          const items = response['result'];
          for (let i = 0; i < items.length; i++) {
              const item = items[i];
              const currencyId = this.safeString (item, 'Asset');
              const code = this.safeCurrencyCode (currencyId);
              const account = this.account ();
              account['free'] = this.safeFloat (item, 'Available');
              account['total'] = this.safeFloat (item, 'Balance');
              result[code] = account;
          }
          return this.parseBalance (result);
      }
  
      async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const request = {};
          let market = undefined;
          if (symbol !== undefined) {
              market = this.market (symbol);
              request['market'] = market['id'];
          }
          const response = await this.v3PrivatePostGetcloseorders (this.extend (request, params));
          const orders = this.safeValue (response, 'result', []);
          return this.parseOrders (orders, market, since, limit);
      }
  
      async fetchTransactionsWithMethod (method, code = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          const response = await this[method] (params);
          const transactions = this.safeValue (response, 'result', []);
          return this.parseTransactions (transactions, code, since, limit);
      }
  
      async fetchDeposits (code = undefined, since = undefined, limit = undefined, params = {}) {
          return await this.fetchTransactionsWithMethod ('v3PrivatePostGetdeposithistory', code, since, limit, params);
      }
  
      async fetchWithdrawals (code = undefined, since = undefined, limit = undefined, params = {}) {
          return await this.fetchTransactionsWithMethod ('v3PrivatePostGetwithdrawhistory', code, since, limit, params);
      }
  
      async fetchDepositAddress (code, params = {}) {
          await this.loadMarkets ();
          const currency = this.currency (code);
          const request = {
              'asset': currency['id'],
          };
          const response = await this.v3PrivatePostGetdepositaddress (this.extend (request, params));
          //   { success: true,
          //     message: '',
          //     result:
          //     { Asset: 'ETH',
          //         AssetName: 'Ethereum',
          //         DepositAddress: '0x748c5c8jhksjdfhd507d3aa9',
          //         Currency: 'ETH',
          //         CurrencyName: 'Ethereum' } }
          const item = response['result'];
          const address = this.safeString (item, 'DepositAddress');
          return {
              'currency': code,
              'address': this.checkAddress (address),
              // 'tag': tag,
              'info': item,
          };
      }
  
      parseLedgerEntryType (type) {
          // deposits don't seem to appear in here
          const types = {
              'TRADE': 'trade',
              'WITHDRAW': 'transaction',
          };
          return this.safeString (types, type, type);
      }
  
      parseLedgerEntry (item, currency = undefined) {
          //
          // trade (both sides)
          //
          //     {
          //         ID: 109660527,
          //         TimeStamp: '2018-11-14 15:12:57.140776',
          //         Asset: 'ETH',
          //         AssetName: 'Ethereum',
          //         Amount: 0.01,
          //         Type: 'TRADE',
          //         Description: 'Trade +, order id 133111123',
          //         Comments: '',
          //         CoinSymbol: 'ETH',
          //         CoinName: 'Ethereum'
          //     }
          //
          //     {
          //         ID: 109660526,
          //         TimeStamp: '2018-11-14 15:12:57.140776',
          //         Asset: 'BTC',
          //         AssetName: 'Bitcoin',
          //         Amount: -0.00031776,
          //         Type: 'TRADE',
          //         Description: 'Trade -, order id 133111123, fee -0.00000079',
          //         Comments: '',
          //         CoinSymbol: 'BTC',
          //         CoinName: 'Bitcoin'
          //     }
          //
          // withdrawal
          //
          //     {
          //         ID: 104672316,
          //         TimeStamp: '2018-05-03 08:18:19.031831',
          //         Asset: 'DOGE',
          //         AssetName: 'Dogecoin',
          //         Amount: -61893.87864686,
          //         Type: 'WITHDRAW',
          //         Description: 'Withdraw: 61883.87864686 to address DD8tgehNNyYB2iqVazi2W1paaztgcWXtF6; fee 10.00000000',
          //         Comments: '',
          //         CoinSymbol: 'DOGE',
          //         CoinName: 'Dogecoin'
          //     }
          //
          const code = this.safeCurrencyCode (this.safeString (item, 'CoinSymbol'), currency);
          const description = this.safeString (item, 'Description');
          const type = this.parseLedgerEntryType (this.safeString (item, 'Type'));
          let referenceId = undefined;
          let fee = undefined;
          const delimiter = (type === 'trade') ? ', ' : '; ';
          const parts = description.split (delimiter);
          for (let i = 0; i < parts.length; i++) {
              let part = parts[i];
              if (part.indexOf ('fee') === 0) {
                  part = part.replace ('fee ', '');
                  let feeCost = parseFloat (part);
                  if (feeCost < 0) {
                      feeCost = -feeCost;
                  }
                  fee = {
                      'cost': feeCost,
                      'currency': code,
                  };
              } else if (part.indexOf ('order id') === 0) {
                  referenceId = part.replace ('order id ', '');
              }
              //
              // does not belong to Ledger, related to parseTransaction
              //
              //     if (part.indexOf ('Withdraw') === 0) {
              //         const details = part.split (' to address ');
              //         if (details.length > 1) {
              //             address = details[1];
              //     }
              //
          }
          const timestamp = this.parse8601 (this.safeString (item, 'TimeStamp'));
          let amount = this.safeFloat (item, 'Amount');
          let direction = undefined;
          if (amount !== undefined) {
              direction = 'in';
              if (amount < 0) {
                  direction = 'out';
                  amount = -amount;
              }
          }
          const id = this.safeString (item, 'ID');
          return {
              'id': id,
              'info': item,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'direction': direction,
              'account': undefined,
              'referenceId': referenceId,
              'referenceAccount': undefined,
              'type': type,
              'currency': code,
              'amount': amount,
              'before': undefined,
              'after': undefined,
              'status': 'ok',
              'fee': fee,
          };
      }
  
      async fetchLedger (code = undefined, since = undefined, limit = undefined, params = {}) {
          await this.loadMarkets ();
          // only seems to return 100 items and there is no documented way to change page size or offset
          const request = {
          };
          const response = await this.v3PrivatePostGetmytransactions (this.extend (request, params));
          const items = response['result'];
          return this.parseLedger (items, code, since, limit);
      }
  
      parseOrder (order, market = undefined) {
          //
          // fetchClosedOrders
          //
          //   { OrderID: 89742658,
          //     Exchange: 'DOGE_BTC',
          //     Type: 'BUY',
          //     Quantity: 10000,
          //     QuantityRemaining: 0,
          //     QuantityBaseTraded: 0,
          //     Price: 6.6e-7,
          //     Status: 'OK',
          //     Created: '2018-02-16 08:55:36',
          //     Comments: '' }
          //
          //  fetchOpenOrders
          //
          //   { OrderID: 161105302,
          //     Exchange: 'ETH_BTC',
          //     Type: 'SELL',
          //     Quantity: 0.4,
          //     QuantityRemaining: 0.4,
          //     QuantityBaseTraded: 0,
          //     Price: 0.04,
          //     Status: 'OPEN',
          //     Created: '2020-01-22 09:21:27',
          //     Comments: { String: '', Valid: true }
          const side = this.safeString (order, 'Type').toLowerCase ();
          const status = this.parseOrderStatus (this.safeString (order, 'Status'));
          let symbol = undefined;
          const marketId = this.safeString (order, 'Exchange');
          if (marketId === undefined) {
              if (market !== undefined) {
                  symbol = market['symbol'];
              }
          } else {
              if (marketId in this.markets_by_id) {
                  market = this.markets_by_id[marketId];
                  symbol = market['symbol'];
              } else {
                  symbol = this.parseSymbol (marketId);
              }
          }
          let timestamp = undefined;
          if ('Created' in order) {
              timestamp = this.parse8601 (order['Created'] + '+00:00');
          }
          let price = this.safeFloat (order, 'Price');
          let cost = undefined;
          const amount = this.safeFloat (order, 'Quantity');
          const remaining = this.safeFloat (order, 'QuantityRemaining');
          let filled = undefined;
          if (amount !== undefined && remaining !== undefined) {
              filled = amount - remaining;
          }
          if (!cost) {
              if (price && filled) {
                  cost = price * filled;
              }
          }
          if (!price) {
              if (cost && filled) {
                  price = cost / filled;
              }
          }
          const average = this.safeFloat (order, 'PricePerUnit');
          const id = this.safeString (order, 'OrderID');
          return {
              'info': order,
              'id': id,
              'clientOrderId': undefined,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'lastTradeTimestamp': undefined,
              'symbol': symbol,
              'type': 'limit',
              'side': side,
              'price': price,
              'cost': cost,
              'average': average,
              'amount': amount,
              'filled': filled,
              'remaining': remaining,
              'status': status,
              'fee': undefined,
              'trades': undefined,
          };
      }
  
      parseOrderStatus (status) {
          const statuses = {
              'OK': 'closed',
              'OPEN': 'open',
              'CANCELED': 'canceled',
          };
          return this.safeString (statuses, status, status);
      }
  
      parseTransaction (transaction, currency = undefined) {
          //
          //  deposit:
          //
          //   { ID: 118698752,
          //     Timestamp: '2020-01-21 11:16:09',
          //     Asset: 'ETH',
          //     Amount: 1,
          //     TransactionID: '',
          //     Status: 'CONFIRMED',
          //     Label: '0x748c5c8228d0c596f4d07f338blah',
          //     Symbol: 'ETH' }
          //
          // withdrawal:
          //
          //   { ID: 689281,
          //     Timestamp: '2019-07-05 13:14:43',
          //     Asset: 'BTC',
          //     Amount: -0.108959,
          //     TransactionID: 'da48d6901fslfjsdjflsdjfls852b87e362cad1',
          //     Status: 'CONFIRMED',
          //     Label: '0.1089590;35wztHPMgrebFvvblah;0.00100000',
          //     Symbol: 'BTC' }
          //
          const id = this.safeString (transaction, 'ID');
          let amount = this.safeFloat (transaction, 'Amount');
          let type = 'deposit';
          if (amount < 0) {
              amount = Math.abs (amount);
              type = 'withdrawal';
          }
          const currencyId = this.safeString (transaction, 'Asset');
          const code = this.safeCurrencyCode (currencyId, currency);
          const label = this.safeString (transaction, 'Label');
          const timestamp = this.parse8601 (this.safeString (transaction, 'Timestamp'));
          let txid = this.safeString (transaction, 'TransactionID');
          let address = undefined;
          let feeCost = undefined;
          const labelParts = label.split (';');
          if (labelParts.length === 3) {
              amount = parseFloat (labelParts[0]);
              address = labelParts[1];
              feeCost = parseFloat (labelParts[2]);
          } else {
              address = label;
          }
          let fee = undefined;
          if (feeCost !== undefined) {
              fee = {
                  'currency': code,
                  'cost': feeCost,
              };
          }
          let status = 'ok';
          if (txid === 'CANCELED') {
              txid = undefined;
              status = 'canceled';
          }
          return {
              'info': transaction,
              'timestamp': timestamp,
              'datetime': this.iso8601 (timestamp),
              'id': id,
              'currency': code,
              'amount': amount,
              'address': address,
              'tag': undefined,
              'status': status,
              'type': type,
              'updated': undefined,
              'txid': txid,
              'fee': fee,
          };
      }
  
      nonce () {
          return this.milliseconds ();
      }
  
      sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
          let url = this.implodeParams (this.urls['api'][api], {
              'hostname': this.hostname,
          }) + '/';
          if (api === 'v3Private') {
              this.checkRequiredCredentials ();
              const request = {
                  'apikey': this.apiKey,
                  'nonce': this.nonce (),
              };
              url += path + '?' + this.urlencode (this.extend (request, params));
              const signature = this.hmac (this.encode (url), this.encode (this.secret), 'sha512');
              headers = { 'apisign': signature };
          } else {
              url += path + '?' + this.urlencode (params);
          }
          return { 'url': url, 'method': method, 'body': body, 'headers': headers };
      }
  
      handleErrors (code, reason, url, method, headers, body, response, requestHeaders, requestBody) {
          if (response === undefined) {
              return; // fallback to default error handler
          }
          //    examples...
          //    {"success":false,"message":"Erro: Order is not open.","result":""} <-- 'error' is spelt wrong
          //    {"success":false,"message":"Error: Very low volume.","result":"ERR_LOW_VOLUME"}
          //    {"success":false,"message":"Error: Insuficient Balance","result":"ERR_INSUFICIENT_BALANCE"}
          //    {"success":false,"message":"Invalid form","result":null}
          //
          const success = this.safeValue (response, 'success');
          if (success === undefined) {
              throw new ExchangeError (this.id + ': malformed response: ' + this.json (response));
          }
          if (!success) {
              const feedback = this.id + ' ' + body;
              const errorCode = this.safeString (response, 'result');
              if (errorCode !== undefined) {
                  this.throwBroadlyMatchedException (this.exceptions['broad'], errorCode, feedback);
                  this.throwExactlyMatchedException (this.exceptions['exact'], errorCode, feedback);
              }
              const errorMessage = this.safeString (response, 'message');
              this.throwBroadlyMatchedException (this.exceptions['broad'], errorMessage, feedback);
              this.throwExactlyMatchedException (this.exceptions['exact'], errorMessage, feedback);
              throw new ExchangeError (feedback);
          }
      }
  };
  