text: # -*- coding: utf-8 -*-
  
  # PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
  # https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
  
  from ccxt.base.exchange import Exchange
  from ccxt.base.errors import ExchangeError
  from ccxt.base.errors import BadRequest
  from ccxt.base.errors import InsufficientFunds
  from ccxt.base.errors import InvalidOrder
  from ccxt.base.errors import DuplicateOrderId
  from ccxt.base.errors import NotSupported
  from ccxt.base.decimal_to_precision import TICK_SIZE
  from ccxt.base.precise import Precise
  
  
  class lykke(Exchange):
  
      def describe(self):
          return self.deep_extend(super(lykke, self).describe(), {
              'id': 'lykke',
              'name': 'Lykke',
              'countries': ['UK'],
              'version': '2',
              # 300 requests per minute per method => 60000ms / 300 = 200(/api/orders/*)
              # 120 requests per minute per method =>( 60000ms / rateLimit ) / 120 = cost = 2.5(/api/*)
              'rateLimit': 200,  # TODO: optim\ize https://lykkecity.github.io/Trading-API/#request-rate-limits
              'has': {
                  'CORS': None,
                  'spot': True,
                  'margin': False,
                  'swap': False,
                  'future': False,
                  'option': False,
                  'cancelAllOrders': True,
                  'cancelOrder': True,
                  'createOrder': True,
                  'editOrder': False,
                  'fetchBalance': True,
                  'fetchBorrowRate': False,
                  'fetchBorrowRateHistories': False,
                  'fetchBorrowRateHistory': False,
                  'fetchBorrowRates': False,
                  'fetchClosedOrders': True,
                  'fetchCurrencies': True,
                  'fetchDepositAddress': True,
                  'fetchDeposits': False,
                  'fetchFundingHistory': False,
                  'fetchFundingRate': False,
                  'fetchFundingRateHistory': False,
                  'fetchFundingRates': False,
                  'fetchIndexOHLCV': False,
                  'fetchMarkets': True,
                  'fetchMarkOHLCV': False,
                  'fetchMyTrades': True,
                  'fetchOHLCV': 'emulated',
                  'fetchOpenInterestHistory': False,
                  'fetchOpenOrders': True,
                  'fetchOrder': True,
                  'fetchOrderBook': True,
                  'fetchOrders': False,
                  'fetchOrderTrades': False,
                  'fetchPositions': False,
                  'fetchPremiumIndexOHLCV': False,
                  'fetchTicker': True,
                  'fetchTickers': True,
                  'fetchTime': False,
                  'fetchTrades': True,
                  'fetchTradingFee': False,
                  'fetchTradingFees': False,
                  'fetchTransactionFees': False,
                  'fetchTransactions': True,
                  'fetchWithdrawals': False,
                  'setLeverage': False,
                  'setMarginMode': False,
                  'withdraw': True,
              },
              'requiredCredentials': {
                  'apiKey': True,
                  'secret': False,
              },
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/155840500-1ea4fdf0-47c0-4daa-9597-c6c1cd51b9ec.jpg',
                  'api': {
                      'public': 'https://hft-apiv2.lykke.com/api',
                      'private': 'https://hft-apiv2.lykke.com/api',
                  },
                  'www': 'https://www.lykke.com',
                  'doc': [
                      'https://hft-apiv2.lykke.com/swagger/ui/index.html',
                      'https://lykkecity.github.io/Trading-API',
                  ],
                  'fees': 'https://support.lykke.com/hc/en-us/articles/115002141125-What-are-the-fees-and-charges-',  # zero fee
              },
              'api': {
                  'public': {
                      'get': {
                          'assetpairs': 2.5,
                          'assetpairs/{id}': 2.5,
                          'assets': 2.5,
                          'assets/{id}': 2.5,
                          'isalive': 2.5,
                          'orderbooks': 2.5,
                          'tickers': 2.5,
                          'prices': 2.5,
                          'trades/public/{assetPairId}': 2.5,
                      },
                  },
                  'private': {
                      'get': {
                          'balance': 2.5,
                          'trades': 2.5,
                          'trades/order/{orderId}': 2.5,
                          'orders/active': 1,
                          'orders/closed': 1,
                          'orders/{orderId}': 1,
                          'operations': 2.5,
                          'operations/deposits/addresses': 2.5,
                          'operations/deposits/addresses/{assetId}': 2.5,
                      },
                      'post': {
                          'orders/limit': 1,
                          'orders/market': 1,
                          'orders/bulk': 1,
                          'operations/withdrawals': 2.5,
                          'operations/deposits/addresses': 2.5,
                      },
                      'delete': {
                          'orders': 1,
                          'orders/{orderId}': 1,
                      },
                  },
              },
              'fees': {
                  'trading': {
                      'tierBased': False,
                      'percentage': True,
                      'maker': 0,  # https://support.lykke.com/hc/en-us/articles/115002141125-What-are-the-fees-and-min-amounts-
                      'taker': 0,
                  },
              },
              'precisionMode': TICK_SIZE,
              'exceptions': {
                  'exact': {
                      '1001': ExchangeError,
                      '1100': ExchangeError,
                      '1101': ExchangeError,
                      '2000': BadRequest,
                      '2001': InsufficientFunds,
                      '2202': DuplicateOrderId,
                      '2003': ExchangeError,
                      '2004': NotSupported,
                      '2005': ExchangeError,
                      '2006': InsufficientFunds,
                      '2007': InsufficientFunds,
                      '2008': InsufficientFunds,
                      '2009': ExchangeError,
                      '2010': InsufficientFunds,
                      '2011': InvalidOrder,
                      '2012': InvalidOrder,
                      '2013': InvalidOrder,
                      '2014': InvalidOrder,
                      '2015': InvalidOrder,
                      '2016': InvalidOrder,
                      '2017': InvalidOrder,
                      '2018': InvalidOrder,
                      '2019': InvalidOrder,
                      '2020': InvalidOrder,
                      '2021': InvalidOrder,
                      '2022': InvalidOrder,
                      '2023': ExchangeError,
                  },
                  'broad': {},
              },
              'commonCurrencies': {
              },
          })
  
      def fetch_currencies(self, params={}):
          """
          fetches all available currencies on an exchange
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: an associative dictionary of currencies
          """
          response = self.publicGetAssets(params)
          currencies = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetId":"115a60c2-0da1-40f9-a7f2-41da723b9074",
          #                 "name":"Monaco Token",
          #                 "symbol":"MCO",
          #                 "accuracy":6,
          #                 "multiplierPower":8,
          #                 "assetAddress":"",
          #                 "blockchainIntegrationLayerId":"",
          #                 "blockchain":"ethereum",
          #                 "type":"erc20Token",
          #                 "isTradable":true,
          #                 "isTrusted":true,
          #                 "kycNeeded":false,
          #                 "blockchainWithdrawal":true,
          #                 "cashoutMinimalAmount":0.1,
          #                 "lowVolumeAmount":null,
          #                 "lykkeEntityId":"LYKKE NL",
          #                 "siriusAssetId":0,
          #                 "siriusBlockchainId":null,
          #                 "blockchainIntegrationType":"none",
          #                 "blockchainDepositEnabled":false,
          #                 "isDisabled":false
          #             }
          #         ],
          #         "error":null
          #     }
          #
          result = {}
          for i in range(0, len(currencies)):
              currency = currencies[i]
              id = self.safe_string(currency, 'assetId')
              code = self.safe_string(currency, 'symbol')
              name = self.safe_string(currency, 'name')
              type = self.safe_string(currency, 'type')
              deposit = self.safe_value(currency, 'blockchainDepositEnabled')
              withdraw = self.safe_value(currency, 'blockchainWithdrawal')
              isDisabled = self.safe_value(currency, 'isDisabled')
              active = not isDisabled
              result[code] = {
                  'id': id,
                  'code': code,
                  'info': currency,
                  'type': type,
                  'name': name,
                  'active': active,
                  'deposit': deposit,
                  'withdraw': withdraw,
                  'fee': None,
                  'precision': self.parse_number(self.parse_precision(self.safe_string(currency, 'accuracy'))),
                  'limits': {
                      'withdraw': {
                          'min': self.safe_value(currency, 'cashoutMinimalAmount'),
                          'max': None,
                      },
                      'amount': {
                          'min': self.safe_value(currency, 'lowVolumeAmount'),
                          'max': None,
                      },
                  },
              }
          return result
  
      def fetch_markets(self, params={}):
          """
          retrieves data on all markets for lykke
          :param dict params: extra parameters specific to the exchange api endpoint
          :returns [dict]: an array of objects representing market data
          """
          response = self.publicGetAssetpairs(params)
          markets = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetPairId":"AAVEBTC",
          #                 "baseAssetId":"c9e55548-dae5-44fc-bebd-e72249cb19f3",
          #                 "quoteAssetId":"BTC",
          #                 "name":"AAVE/BTC",
          #                 "priceAccuracy":6,
          #                 "baseAssetAccuracy":6,
          #                 "quoteAssetAccuracy":8,
          #                 "minVolume":0.001,
          #                 "minOppositeVolume":0.0001
          #             }
          #         ],
          #         "error":null
          #     }
          #
          result = []
          for i in range(0, len(markets)):
              market = markets[i]
              id = self.safe_string(market, 'assetPairId')
              name = self.safe_string(market, 'name')
              baseAssetId = self.safe_string(market, 'baseAssetId')
              quoteAssetId = self.safe_string(market, 'quoteAssetId')
              baseId, quoteId = name.split('/')
              base = self.safe_currency_code(baseId)
              quote = self.safe_currency_code(quoteId)
              symbol = base + '/' + quote
              result.append({
                  'id': id,
                  'symbol': symbol,
                  'base': base,
                  'quote': quote,
                  'baseId': baseAssetId,
                  'quoteId': quoteAssetId,
                  'settle': None,
                  'settleId': None,
                  'type': 'spot',
                  'spot': True,
                  'margin': False,
                  'swap': False,
                  'future': False,
                  'option': False,
                  'contract': False,
                  'active': True,
                  'info': market,
                  'linear': None,
                  'inverse': None,
                  'contractSize': None,
                  'expiry': None,
                  'expiryDatetime': None,
                  'strike': None,
                  'optionType': None,
                  'precision': {
                      'amount': self.parse_number(self.parse_precision(self.safe_string(market, 'baseAssetAccuracy'))),
                      'price': self.parse_number(self.parse_precision(self.safe_string(market, 'priceAccuracy'))),
                  },
                  'limits': {
                      'amount': {
                          'min': self.safe_number(market, 'minVolume'),
                          'max': None,
                      },
                      'price': {
                          'min': None,
                          'max': None,
                      },
                      'cost': {
                          'min': self.safe_number(market, 'minOppositeVolume'),
                          'max': None,
                      },
                      'leverage': {
                          'min': None,
                          'max': None,
                      },
                  },
              })
          return result
  
      def parse_ticker(self, ticker, market=None):
          #
          # fetchTickers
          #
          #     publicGetTickers
          #
          #     {
          #         "assetPairId":"BTCUSD",
          #         "volumeBase":2.56905016,
          #         "volumeQuote":95653.8730,
          #         "priceChange":-0.0367945778541765034194707584,
          #         "lastPrice":36840.0,
          #         "high":38371.645,
          #         "low":35903.356,
          #         "timestamp":1643295740729
          #     }
          #
          # fetchTicker
          #
          #     publicGetTickers
          #
          #     {
          #         "assetPairId":"BTCUSD",
          #         "volumeBase":2.56905016,
          #         "volumeQuote":95653.8730,
          #         "priceChange":-0.0367945778541765034194707584,
          #         "lastPrice":36840.0,
          #         "high":38371.645,
          #         "low":35903.356,
          #         "timestamp":1643295740729
          #     }
          #
          #     publicGetPrices
          #
          #     {
          #         "assetPairId":"BTCUSD",
          #         "bid":36181.521,
          #         "ask":36244.492,
          #         "timestamp":1643305510990
          #     }
          #
          timestamp = self.safe_integer(ticker, 'timestamp')
          marketId = self.safe_string(ticker, 'assetPairId')
          market = self.safe_market(marketId, market)
          close = self.safe_string(ticker, 'lastPrice')
          return self.safe_ticker({
              'symbol': self.safe_string(market, 'symbol'),
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'high': self.safe_string(ticker, 'high'),
              'low': self.safe_string(ticker, 'low'),
              'bid': self.safe_string(ticker, 'bid'),
              'bidVolume': None,
              'ask': self.safe_string(ticker, 'ask'),
              'askVolume': None,
              'vwap': None,
              'open': None,
              'close': close,
              'last': close,
              'previousClose': None,
              'change': self.safe_string(ticker, 'priceChange'),
              'percentage': None,
              'average': None,
              'baseVolume': self.safe_string(ticker, 'volumeBase'),
              'quoteVolume': self.safe_string(ticker, 'volumeQuote'),
              'info': ticker,
          }, market)
  
      def fetch_ticker(self, symbol, params={}):
          """
          fetches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
          :param str symbol: unified symbol of the market to fetch the ticker for
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: a `ticker structure <https://docs.ccxt.com/en/latest/manual.html#ticker-structure>`
          """
          self.load_markets()
          market = self.market(symbol)
          request = {
              'assetPairIds': market['id'],
          }
          # publicGetTickers or publicGetPrices
          method = self.safe_string(self.options, 'fetchTickerMethod', 'publicGetTickers')
          response = getattr(self, method)(self.extend(request, params))
          ticker = self.safe_value(response, 'payload', [])
          #
          # publicGetTickers
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetPairId":"BTCUSD",
          #                 "volumeBase":0.78056880,
          #                 "volumeQuote":29782.5169,
          #                 "priceChange":0.0436602362590968619931324699,
          #                 "lastPrice":38626.885,
          #                 "high":38742.896,
          #                 "low":36872.498,
          #                 "timestamp":1643687822840
          #             }
          #         ],
          #         "error":null
          #     }
          #
          # publicGetPrices
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetPairId":"BTCUSD",
          #                 "bid":38597.936,
          #                 "ask":38640.311,
          #                 "timestamp":1643688350847
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_ticker(self.safe_value(ticker, 0, {}), market)
  
      def fetch_tickers(self, symbols=None, params={}):
          """
          fetches price tickers for multiple markets, statistical calculations with the information calculated over the past 24 hours each market
          :param [str]|None symbols: unified symbols of the markets to fetch the ticker for, all market tickers are returned if not assigned
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: an array of `ticker structures <https://docs.ccxt.com/en/latest/manual.html#ticker-structure>`
          """
          self.load_markets()
          response = self.publicGetTickers(params)
          tickers = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetPairId":"BTCUSD",
          #                 "volumeBase":0.78056880,
          #                 "volumeQuote":29782.5169,
          #                 "priceChange":0.0436602362590968619931324699,
          #                 "lastPrice":38626.885,
          #                 "high":38742.896,
          #                 "low":36872.498,
          #                 "timestamp":1643687822840
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_tickers(tickers, symbols)
  
      def fetch_order_book(self, symbol, limit=None, params={}):
          """
          fetches information on open orders with bid(buy) and ask(sell) prices, volumes and other data
          :param str symbol: unified symbol of the market to fetch the order book for
          :param int|None limit: the maximum amount of order book entries to return
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: A dictionary of `order book structures <https://docs.ccxt.com/en/latest/manual.html#order-book-structure>` indexed by market symbols
          """
          self.load_markets()
          request = {
              'assetPairId': self.market_id(symbol),
          }
          if limit is not None:
              request['depth'] = limit  # default 0
          response = self.publicGetOrderbooks(self.extend(request, params))
          payload = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 assetPairId: 'BTCUSD',
          #                 timestamp: '1643298038203',
          #                 bids: [
          #                     {
          #                         "v":0.59034382,
          #                         "p":36665.329
          #                     }
          #                 ],
          #                 asks: [
          #                     {
          #                         "v":-0.003,
          #                         "p":36729.686
          #                     }
          #                 ]
          #             }
          #         ],
          #         "error":null
          #     }
          #
          orderbook = self.safe_value(payload, 0, {})
          timestamp = self.safe_string(orderbook, 'timestamp')
          return self.parse_order_book(orderbook, symbol, timestamp, 'bids', 'asks', 'p', 'v')
  
      def parse_trade(self, trade, market):
          #
          #  public fetchTrades
          #
          #     {
          #         "id":"71df1f0c-be4e-4d45-b809-c108fad5f2a8",
          #         "assetPairId":"BTCUSD",
          #         "timestamp":1643345958414,
          #         "volume":0.00010996,
          #         "price":37205.723,
          #         "side":"buy"
          #      }
          #
          #  private fetchMyTrades
          #         {
          #             "id":"813a3ffa-1c4b-45cb-b13f-1c077ea2748b",
          #             "timestamp":1644155923357,
          #             "assetPairId":"BCHEUR",
          #             "orderId":"1b367978-7e4f-454b-b870-64040d484443",
          #             "role":"Taker",
          #             "side":"sell",
          #             "price":280.569,
          #             "baseVolume":0.01,
          #             "quoteVolume":2.8056,
          #             "baseAssetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #             "quoteAssetId":"EUR",
          #             "fee":null
          #         }
          #
          marketId = self.safe_string(trade, 'assetPairId')
          market = self.safe_market(marketId, market)
          symbol = market['symbol']
          id = self.safe_string_2(trade, 'id', 'id')
          orderId = self.safe_string(trade, 'orderId')
          timestamp = self.safe_integer(trade, 'timestamp')
          price = self.safe_string_2(trade, 'price', 'price')
          amount = self.safe_string_2(trade, 'volume', 'amount')
          if amount is None:
              amount = self.safe_string_2(trade, 'baseVolume', 'amount')
          side = self.safe_string_lower(trade, 'side')
          fee = {
              'cost': self.parse_number('0'),  # There are no fees for trading.
              'currency': market['quote'],
          }
          return self.safe_trade({
              'id': id,
              'info': trade,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'symbol': symbol,
              'type': None,
              'order': orderId,
              'side': side,
              'takerOrMaker': None,
              'price': price,
              'amount': amount,
              'cost': None,
              'fee': fee,
          }, market)
  
      def fetch_trades(self, symbol, since=None, limit=None, params={}):
          """
          get the list of most recent trades for a particular symbol
          :param str symbol: unified symbol of the market to fetch trades for
          :param int|None since: timestamp in ms of the earliest trade to fetch
          :param int|None limit: the maximum amount of trades to fetch
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns [dict]: a list of `trade structures <https://docs.ccxt.com/en/latest/manual.html?#public-trades>`
          """
          self.load_markets()
          market = self.market(symbol)
          request = {
              'assetPairId': market['id'],
              # 'offset': 0,
          }
          if limit is not None:
              request['take'] = limit
          response = self.publicGetTradesPublicAssetPairId(self.extend(request, params))
          result = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "id":"71df1f0c-be4e-4d45-b809-c108fad5f2a8",
          #                 "assetPairId":"BTCUSD",
          #                 "timestamp":1643345958414,
          #                 "volume":0.00010996,
          #                 "price":37205.723,
          #                 "side":"buy"
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_trades(result, market, since, limit)
  
      def parse_balance(self, response):
          #
          #     [
          #         {
          #             "assetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #             "available":0.1,
          #             "reserved":0.0,
          #             "timestamp":1644146723620
          #         }
          #     ]
          #
          result = {'info': response}
          for i in range(0, len(response)):
              balance = response[i]
              currencyId = self.safe_string(balance, 'assetId')
              code = self.safe_currency_code(currencyId)
              account = self.account()
              free = self.safe_string(balance, 'available')
              used = self.safe_string(balance, 'reserved')
              account['free'] = free
              account['used'] = used
              result[code] = account
          return self.safe_balance(result)
  
      def fetch_balance(self, params={}):
          """
          query for balance and get the amount of funds available for trading or funds locked in orders
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: a `balance structure <https://docs.ccxt.com/en/latest/manual.html?#balance-structure>`
          """
          self.load_markets()
          response = self.privateGetBalance(params)
          payload = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "assetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #                 "available":0.1,
          #                 "reserved":0.0,
          #                 "timestamp":1644146723620
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_balance(payload)
  
      def parse_order_status(self, status):
          statuses = {
              'Open': 'open',
              'Pending': 'open',
              'InOrderBook': 'open',
              'Processing': 'open',
              'Matched': 'closed',
              'Cancelled': 'canceled',
              'Rejected': 'rejected',
              'Replaced': 'canceled',
              'Placed': 'open',
          }
          return self.safe_string(statuses, status, status)
  
      def parse_order(self, order, market=None):
          #
          #     {
          #         "id":"1b367978-7e4f-454b-b870-64040d484443",
          #         "timestamp":1644155923357,
          #         "lastTradeTimestamp":1644155923357,
          #         "status":"Matched",
          #         "assetPairId":"BCHEUR",
          #         "type":"Market",
          #         "side":"Sell",
          #         "price":280.569,
          #         "volume":0.01,
          #         "filledVolume":0.01,
          #         "remainingVolume":0.0,
          #         "cost":2.80569
          #     }
          #
          id = self.safe_string(order, 'id')
          status = self.parse_order_status(self.safe_string(order, 'status'))
          marketId = self.safe_string(order, 'assetPairId')
          symbol = self.safe_symbol(marketId, market)
          type = self.safe_string_lower(order, 'type')
          lastTradeTimestamp = self.safe_integer(order, 'lastTradeTimestamp')
          timestamp = self.safe_integer(order, 'timestamp')
          price = self.safe_string(order, 'price')
          side = self.safe_string_lower(order, 'side')
          amount = self.safe_string(order, 'volume')
          remaining = self.safe_string(order, 'remainingVolume')
          filled = self.safe_string(order, 'filledVolume')
          cost = self.safe_string(order, 'cost')
          return self.safe_order({
              'info': order,
              'id': id,
              'clientOrderId': None,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': lastTradeTimestamp,
              'symbol': symbol,
              'type': type,
              'timeInForce': None,
              'postOnly': None,
              'side': side,
              'price': price,
              'stopPrice': None,
              'amount': amount,
              'cost': cost,
              'average': None,
              'filled': filled,
              'remaining': remaining,
              'status': status,
              'fee': None,
              'trades': None,
          }, market)
  
      def create_order(self, symbol, type, side, amount, price=None, params={}):
          """
          create a trade order
          :param str symbol: unified symbol of the market to create an order in
          :param str type: 'market' or 'limit'
          :param str side: 'buy' or 'sell'
          :param float amount: how much of currency you want to trade in units of base currency
          :param float price: the price at which the order is to be fullfilled, in units of the quote currency, ignored in market orders
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: an `order structure <https://docs.ccxt.com/en/latest/manual.html#order-structure>`
          """
          self.load_markets()
          market = self.market(symbol)
          query = {
              'assetPairId': market['id'],
              'side': self.capitalize(side),
              'volume': float(self.amount_to_precision(symbol, amount)),
          }
          if type == 'limit':
              query['price'] = float(self.price_to_precision(symbol, price))
          method = 'privatePostOrders' + self.capitalize(type)
          result = getattr(self, method)(self.extend(query, params))
          #
          # market
          #
          #         {
          #             "payload":{
          #                 "orderId":"2b98ec26-8410-49b6-9f37-1fb2150e2299",
          #                 "price":280.699
          #             },
          #             "error":null
          #         }
          #
          # limit
          #
          #         {
          #             "payload":{
          #                 "orderId":"27be8802-30be-40ca-bf40-ec886b309c5b"
          #             },
          #             "error":null
          #         }
          #
          payload = self.safe_value(result, 'payload')
          id = self.safe_string(payload, 'orderId')
          if type == 'market':
              price = self.safe_number(payload, 'price')
          return {
              'id': id,
              'info': result,
              'clientOrderId': None,
              'timestamp': None,
              'datetime': None,
              'lastTradeTimestamp': None,
              'symbol': symbol,
              'type': type,
              'side': side,
              'price': price,
              'amount': amount,
              'cost': None,
              'average': None,
              'filled': None,
              'remaining': None,
              'status': None,
              'fee': None,
              'trades': None,
          }
  
      def cancel_order(self, id, symbol=None, params={}):
          """
          cancels an open order
          :param str id: order id
          :param str|None symbol: unified symbol of the market the order was made in
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: An `order structure <https://docs.ccxt.com/en/latest/manual.html#order-structure>`
          """
          request = {
              'orderId': id,
          }
          #
          #     {
          #         "payload":null,
          #         "error":null
          #     }
          #
          return self.privateDeleteOrdersOrderId(self.extend(request, params))
  
      def cancel_all_orders(self, symbol=None, params={}):
          self.load_markets()
          request = {
              # 'side': 'Buy',
          }
          market = None
          if symbol is not None:
              market = self.market(symbol)
              request['assetPairId'] = market['id']
          #
          #     {
          #         "payload":null,
          #         "error":null
          #     }
          #
          return self.privateDeleteOrders(self.extend(request, params))
  
      def fetch_order(self, id, symbol=None, params={}):
          """
          fetches information on an order made by the user
          :param str|None symbol: not used by lykke fetchOrder
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: An `order structure <https://docs.ccxt.com/en/latest/manual.html#order-structure>`
          """
          self.load_markets()
          request = {
              'orderId': id,
          }
          response = self.privateGetOrdersOrderId(self.extend(request, params))
          payload = self.safe_value(response, 'payload')
          #
          #     {
          #         "payload":{
          #             "id":"1b367978-7e4f-454b-b870-64040d484443",
          #             "timestamp":1644155923357,
          #             "lastTradeTimestamp":1644155923357,
          #             "status":"Matched",
          #             "assetPairId":"BCHEUR",
          #             "type":"Market",
          #             "side":"Sell",
          #             "price":280.569,
          #             "volume":0.01,
          #             "filledVolume":0.01,
          #             "remainingVolume":0.0,
          #             "cost":2.80569
          #         },
          #         "error":null
          #     }
          #
          return self.parse_order(payload)
  
      def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
          self.load_markets()
          market = None
          if symbol is not None:
              market = self.market(symbol)
          request = {
              # 'offset': 0,
              # 'take': 1,
          }
          if limit is not None:
              request['take'] = limit
          response = self.privateGetOrdersActive(self.extend(request, params))
          payload = self.safe_value(response, 'payload')
          #
          #     {
          #         "payload":[
          #             {
          #                 "id":"b26f58f5-8542-4b4c-9815-91562b523cc3",
          #                 "timestamp":1644157177155,
          #                 "lastTradeTimestamp":null,
          #                 "status":"Placed",
          #                 "assetPairId":"BCHEUR",
          #                 "type":"Limit",
          #                 "side":"Sell",
          #                 "price":666.666,
          #                 "volume":0.01,
          #                 "filledVolume":0.00,
          #                 "remainingVolume":0.01,
          #                 "cost":0.00000
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_orders(payload, market, since, limit)
  
      def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
          self.load_markets()
          market = None
          if symbol is not None:
              market = self.market(symbol)
          request = {
              # 'offset': 0,
              # 'take': 1,
          }
          if limit is not None:
              request['take'] = limit
          response = self.privateGetOrdersClosed(self.extend(request, params))
          payload = self.safe_value(response, 'payload')
          #
          #     {
          #         "payload":[
          #             {
          #                 "id":"1b367978-7e4f-454b-b870-64040d484443",
          #                 "timestamp":1644155923357,
          #                 "lastTradeTimestamp":1644155923357,
          #                 "status":"Matched",
          #                 "assetPairId":"BCHEUR",
          #                 "type":"Market",
          #                 "side":"Sell",
          #                 "price":280.569,
          #                 "volume":0.01,
          #                 "filledVolume":0.01,
          #                 "remainingVolume":0.0,
          #                 "cost":2.80569
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_orders(payload, market, since, limit)
  
      def fetch_my_trades(self, symbol=None, since=None, limit=None, params={}):
          self.load_markets()
          request = {
              # 'side': 'buy',
              # 'offset': 0,
              # 'take': 1,
              # 'to': 0,
          }
          market = None
          if limit is not None:
              request['take'] = limit  # How many maximum items have to be returned, max 1000 default 100.
          if symbol is not None:
              market = self.market(symbol)
              request['assetPairId'] = market['id']
          if since is not None:
              request['from'] = since
          response = self.privateGetTrades(self.extend(request, params))
          payload = self.safe_value(response, 'payload')
          #
          #     {
          #         "payload":[
          #             {
          #                 "id":"813a3ffa-1c4b-45cb-b13f-1c077ea2748b",
          #                 "timestamp":1644155923357,
          #                 "assetPairId":"BCHEUR",
          #                 "orderId":"1b367978-7e4f-454b-b870-64040d484443",
          #                 "role":"Taker",
          #                 "side":"sell",
          #                 "price":280.569,
          #                 "baseVolume":0.01,
          #                 "quoteVolume":2.8056,
          #                 "baseAssetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #                 "quoteAssetId":"EUR",
          #                 "fee":null
          #             }
          #         ],
          #         "error":null
          #     }
          #
          return self.parse_trades(payload, market, since, limit)
  
      def parse_bid_ask(self, bidask, priceKey=0, amountKey=1):
          price = self.safe_string(bidask, priceKey)
          amount = Precise.string_abs(self.safe_string(bidask, amountKey))
          return [self.parse_number(price), self.parse_number(amount)]
  
      def fetch_deposit_address(self, code, params={}):
          self.load_markets()
          currency = self.currency(code)
          request = {
              'assetId': self.safe_string(currency, 'id'),
          }
          response = self.privateGetOperationsDepositsAddressesAssetId(self.extend(request, params))
          #
          #     {
          #         "assetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #         "symbol":"BCH",
          #         "address":null,
          #         "baseAddress":null,
          #         "addressExtension":null,
          #         "state":"Active"
          #     }
          #
          address = self.safe_string(response, 'baseAddress')
          tag = self.safe_string(response, 'addressExtension')
          self.check_address(address)
          return {
              'currency': code,
              'address': address,
              'tag': tag,
              'network': None,
              'info': response,
          }
  
      def parse_transaction(self, transaction, currency=None):
          #
          # withdraw
          #     "3035b1ad-2005-4587-a986-1f7966be78e0"
          #
          # fetchTransactions
          #     {
          #         "operationId":"787201c8-f1cc-45c0-aec1-fa06eeea426b",
          #         "assetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #         "totalVolume":0.1,
          #         "fee":0.0,
          #         "type":"deposit",
          #         "timestamp":1644146723620
          #     }
          #
          id = None
          assetId = None
          code = None
          amount = None
          fee = None
          type = None
          timestamp = None
          if isinstance(transaction, str):
              id = transaction
          else:
              id = self.safe_string(transaction, 'operationId')
              assetId = self.safe_string(transaction, 'assetId')
              code = self.safe_currency_code(assetId, currency)
              amount = self.safe_number(transaction, 'totalVolume')
              type = self.safe_string(transaction, 'type')
              timestamp = self.safe_integer(transaction, 'timestamp')
              feeCost = self.safe_number(transaction, 'fee')
              fee = {
                  'currency': code,
                  'cost': feeCost,
              }
          return {
              'info': transaction,
              'id': id,
              'txid': None,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'network': None,
              'addressFrom': None,
              'address': None,
              'addressTo': None,
              'tagFrom': None,
              'tag': None,
              'tagTo': None,
              'type': type,
              'amount': amount,
              'currency': code,
              'status': None,
              'updated': None,
              'fee': fee,
          }
  
      def fetch_transactions(self, code=None, since=None, limit=None, params={}):
          self.load_markets()
          request = {
              # 'offset': 0,
              # 'take': 1,
          }
          if limit is not None:
              request['take'] = limit
          response = self.privateGetOperations(self.extend(request, params))
          payload = self.safe_value(response, 'payload', [])
          #
          #     {
          #         "payload":[
          #             {
          #                 "operationId":"787201c8-f1cc-45c0-aec1-fa06eeea426b",
          #                 "assetId":"2a34d6a6-5839-40e5-836f-c1178fa09b89",
          #                 "totalVolume":0.1,
          #                 "fee":0.0,
          #                 "type":"deposit",
          #                 "timestamp":1644146723620
          #             }
          #         ],
          #         "error":null
          #     }
          #
          currency = None
          if code is not None:
              currency = self.currency(code)
          return self.parse_transactions(payload, currency, since, limit)
  
      def withdraw(self, code, amount, address, tag=None, params={}):
          """
          make a withdrawal
          :param str code: unified currency code
          :param float amount: the amount to withdraw
          :param str address: the address to withdraw to
          :param str|None tag:
          :param dict params: extra parameters specific to the lykke api endpoint
          :returns dict: a `transaction structure <https://docs.ccxt.com/en/latest/manual.html#transaction-structure>`
          """
          self.load_markets()
          self.check_address(address)
          currency = self.currency(code)
          request = {
              'assetId': currency['id'],
              'volume': float(self.currency_to_precision(code, amount)),
              'destinationAddress': address,
              # 'destinationAddressExtension': tag,
          }
          if tag is not None:
              request['destinationAddressExtension'] = tag
          response = self.privatePostOperationsWithdrawals(self.extend(request, params))
          #
          #     "3035b1ad-2005-4587-a986-1f7966be78e0"
          #
          return self.parse_transaction(response, currency)
  
      def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
          url = self.urls['api'][api] + '/' + self.implode_params(path, params)
          query = self.omit(params, self.extract_params(path))
          headers = {
              'Accept': 'application/json',
              'Content-Type': 'application/json',
          }
          if api == 'public':
              if query:
                  url += '?' + self.urlencode(query)
          elif api == 'private':
              if (method == 'GET') or (method == 'DELETE'):
                  if query:
                      url += '?' + self.urlencode(query)
              self.check_required_credentials()
              headers['Authorization'] = 'Bearer ' + self.apiKey
              if method == 'POST':
                  if params:
                      body = self.json(params)
              if path == 'operations/withdrawals':
                  headers['X-Request-ID'] = self.uuid()
          return {'url': url, 'method': method, 'body': body, 'headers': headers}
  
      def handle_errors(self, code, reason, url, method, headers, body, response, requestHeaders, requestBody):
          if response is None:
              return
          error = self.safe_value(response, 'error', {})
          errorCode = self.safe_string(error, 'code')
          if (errorCode is not None) and (errorCode != '0'):
              feedback = self.id + ' ' + body
              message = self.safe_string(error, 'message')
              self.throw_exactly_matched_exception(self.exceptions['exact'], errorCode, feedback)
              self.throw_broadly_matched_exception(self.exceptions['broad'], message, feedback)
              raise ExchangeError(feedback)
  