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.async_support.base.exchange import Exchange
  import math
  from ccxt.base.errors import ExchangeError
  from ccxt.base.errors import AuthenticationError
  from ccxt.base.errors import ArgumentsRequired
  from ccxt.base.errors import BadRequest
  from ccxt.base.errors import BadResponse
  from ccxt.base.errors import DDoSProtection
  from ccxt.base.precise import Precise
  
  
  class bytetrade(Exchange):
  
      def describe(self):
          return self.deep_extend(super(bytetrade, self).describe(), {
              'id': 'bytetrade',
              'name': 'ByteTrade',
              'countries': ['HK'],
              # 10 requests per second =>( 1000ms / 10 ) = 100
              'rateLimit': 100,
              'requiresWeb3': True,
              'certified': False,
              # new metainfo interface
              'has': {
                  'CORS': None,
                  'spot': True,
                  'margin': None,
                  'swap': None,
                  'future': None,
                  'option': None,
                  'cancelOrder': True,
                  'createOrder': True,
                  'fetchBalance': True,
                  'fetchBidsAsks': True,
                  'fetchClosedOrders': True,
                  'fetchCurrencies': True,
                  'fetchDepositAddress': True,
                  'fetchDeposits': True,
                  'fetchMarkets': True,
                  'fetchMyTrades': True,
                  'fetchOHLCV': True,
                  'fetchOpenOrders': True,
                  'fetchOrder': True,
                  'fetchOrderBook': True,
                  'fetchOrders': True,
                  'fetchTicker': True,
                  'fetchTickers': True,
                  'fetchTrades': True,
                  'fetchWithdrawals': True,
                  'withdraw': None,
              },
              'timeframes': {
                  '1m': '1m',
                  '5m': '5m',
                  '15m': '15m',
                  '30m': '30m',
                  '1h': '1h',
                  '4h': '4h',
                  '1d': '1d',
                  '5d': '5d',
                  '1w': '1w',
                  '1M': '1M',
              },
              'urls': {
                  'test': {
                      'market': 'https://api-v2-test.byte-trade.com',
                      'public': 'https://api-v2-test.byte-trade.com',
                  },
                  'logo': 'https://user-images.githubusercontent.com/1294454/67288762-2f04a600-f4e6-11e9-9fd6-c60641919491.jpg',
                  'api': {
                      'market': 'https://api-v2.bttcdn.com',
                      'public': 'https://api-v2.bttcdn.com',
                  },
                  'www': 'https://www.byte-trade.com',
                  'doc': 'https://docs.byte-trade.com/#description',
              },
              'api': {
                  'market': {
                      'get': {
                          'klines': 1,        # Kline of a symbol
                          'depth': 1,         # Market Depth of a symbol
                          'trades': 1,        # Trade records of a symbol
                          'tickers': 1,
                      },
                  },
                  'public': {
                      'get': {
                          'symbols': 1,        # Reference information of trading instrument, including base currency, quote precision, etc.
                          'currencies': 1,     # The list of currencies available
                          'balance': 1,        # Get the balance of an account
                          'orders/open': 1,    # Get the open orders of an account
                          'orders/closed': 1,  # Get the closed orders of an account
                          'orders/all': 1,     # Get the open and closed orders of an account
                          'orders': 1,         # Get the details of an order of an account
                          'orders/trades': 1,  # Get detail match results
                          'depositaddress': 1,  # Get deposit address
                          'withdrawals': 1,    # Get withdrawals info
                          'deposits': 1,       # Get deposit info
                          'transfers': 1,      # Get transfer info
                      },
                      'post': {
                          'transaction/createorder': 1,    # Post create order transaction to blockchain
                          'transaction/cancelorder': 1,    # Post cancel order transaction to blockchain
                          'transaction/withdraw': 1,       # Post withdraw transaction to blockchain
                          'transaction/transfer': 1,       # Post transfer transaction to blockchain
                      },
                  },
              },
              'fees': {
                  'trading': {
                      'tierBased': False,
                      'percentage': True,
                      'taker': 0.0008,
                      'maker': 0.0008,
                  },
              },
              'commonCurrencies': {
                  '1': 'ByteTrade',
                  '44': 'ByteHub',
                  '48': 'Blocktonic',
                  '133': 'TerraCredit',
              },
              'exceptions': {
                  'vertify error': AuthenticationError,  # typo on the exchange side, 'vertify'
                  'verify error': AuthenticationError,  # private key signature is incorrect
                  'transaction already in network': BadRequest,  # same transaction submited
                  'invalid argument': BadRequest,
              },
              'options': {
                  'orderExpiration': 31536000000,  # one year
              },
          })
  
      async def fetch_currencies(self, params={}):
          currencies = await self.publicGetCurrencies(params)
          result = {}
          for i in range(0, len(currencies)):
              currency = currencies[i]
              id = self.safe_string(currency, 'code')
              code = None
              if id in self.commonCurrencies:
                  code = self.commonCurrencies[id]
              else:
                  code = self.safe_string(currency, 'name')
              name = self.safe_string(currency, 'fullname')
              # in byte-trade.com DEX, request https://api-v2.byte-trade.com/currencies will return currencies,
              # the api doc is https://github.com/Bytetrade/bytetrade-official-api-docs/wiki/rest-api#get-currencies-get-currencys-supported-in-bytetradecom
              # we can see the coin name is none-unique in the result, the coin which code is 18 is the CyberMiles ERC20, and the coin which code is 35 is the CyberMiles main chain, but their name is same.
              # that is because bytetrade is a DEX, supports people create coin with the same name, but the id(code) of coin is unique, so we should use the id or name and id as the identity of coin.
              # For coin name and symbol is same with CCXT, I use name@id as the key of commonCurrencies dict.
              # [{
              #     "name": "CMT",      # currency name, non-unique
              #     "code": "18",       # currency id, unique
              #     "type": "crypto",
              #     "fullname": "CyberMiles",
              #     "active": True,
              #     "chainType": "ethereum",
              #     "basePrecision": 18,
              #     "transferPrecision": 10,
              #     "externalPrecision": 18,
              #     "chainContractAddress": "0xf85feea2fdd81d51177f6b8f35f0e6734ce45f5f",
              #     "limits": {
              #       "deposit": {
              #         "min": "0",
              #         "max": "-1"
              #       },
              #       "withdraw": {
              #         "min": "0",
              #         "max": "-1"
              #       }
              #     }
              #   },
              #   {
              #     "name": "CMT",
              #     "code": "35",
              #     "type": "crypto",
              #     "fullname": "CyberMiles",
              #     "active": True,
              #     "chainType": "cmt",
              #     "basePrecision": 18,
              #     "transferPrecision": 10,
              #     "externalPrecision": 18,
              #     "chainContractAddress": "0x0000000000000000000000000000000000000000",
              #     "limits": {
              #       "deposit": {
              #         "min": "1",
              #         "max": "-1"
              #       },
              #       "withdraw": {
              #         "min": "10",
              #         "max": "-1"
              #       }
              #     }
              #   }
              #   ]
              active = self.safe_value(currency, 'active')
              limits = self.safe_value(currency, 'limits')
              deposit = self.safe_value(limits, 'deposit')
              amountPrecision = self.safe_integer(currency, 'basePrecision')
              maxDeposit = self.safe_number(deposit, 'max')
              if maxDeposit == -1.0:
                  maxDeposit = None
              withdraw = self.safe_value(limits, 'withdraw')
              maxWithdraw = self.safe_number(withdraw, 'max')
              if maxWithdraw == -1.0:
                  maxWithdraw = None
              result[code] = {
                  'id': id,
                  'code': code,
                  'name': name,
                  'active': active,
                  'deposit': None,
                  'withdraw': None,
                  'precision': amountPrecision,
                  'fee': None,
                  'limits': {
                      'amount': {'min': None, 'max': None},
                      'deposit': {
                          'min': self.safe_number(deposit, 'min'),
                          'max': maxDeposit,
                      },
                      'withdraw': {
                          'min': self.safe_number(withdraw, 'min'),
                          'max': maxWithdraw,
                      },
                  },
                  'info': currency,
              }
          return result
  
      async def fetch_markets(self, params={}):
          markets = await self.publicGetSymbols(params)
          result = []
          for i in range(0, len(markets)):
              market = markets[i]
              id = self.safe_string(market, 'symbol')
              base = self.safe_string(market, 'baseName')
              quote = self.safe_string(market, 'quoteName')
              baseId = self.safe_string(market, 'base')
              quoteId = self.safe_string(market, 'quote')
              normalBase = base.split('@' + baseId)[0]
              normalQuote = quote.split('@' + quoteId)[0]
              if quoteId == '126':
                  normalQuote = 'ZAR'  # The id 126 coin is a special coin whose name on the chain is actually ZAR, but it is changed to ZCN after creation, so it must be changed to ZAR when placing the transaction in the chain
              normalSymbol = normalBase + '/' + normalQuote
              if baseId in self.commonCurrencies:
                  base = self.commonCurrencies[baseId]
              if quoteId in self.commonCurrencies:
                  quote = self.commonCurrencies[quoteId]
              symbol = base + '/' + quote
              limits = self.safe_value(market, 'limits', {})
              amount = self.safe_value(limits, 'amount', {})
              price = self.safe_value(limits, 'price', {})
              precision = self.safe_value(market, 'precision', {})
              active = self.safe_string(market, 'active')
              entry = {
                  'id': id,
                  'symbol': symbol,
                  'base': base,
                  'quote': quote,
                  'baseId': baseId,
                  'quoteId': quoteId,
                  'info': market,
                  'type': 'spot',
                  'spot': True,
                  'active': active,
                  'precision': {
                      'amount': self.safe_integer(precision, 'amount'),
                      'price': self.safe_integer(precision, 'price'),
                  },
                  'normalSymbol': normalSymbol,
                  'limits': {
                      'amount': {
                          'min': self.safe_number(amount, 'min'),
                          'max': self.safe_number(amount, 'max'),
                      },
                      'price': {
                          'min': self.safe_number(price, 'min'),
                          'max': self.safe_number(price, 'max'),
                      },
                      'cost': {
                          'min': None,
                          'max': None,
                      },
                  },
              }
              result.append(entry)
          return result
  
      def parse_balance(self, response):
          result = {'info': response}
          for i in range(0, len(response)):
              balance = response[i]
              currencyId = self.safe_string(balance, 'code')
              code = self.safe_currency_code(currencyId, None)
              account = self.account()
              account['free'] = self.safe_string(balance, 'free')
              account['used'] = self.safe_string(balance, 'used')
              result[code] = account
          return self.safe_balance(result)
  
      async def fetch_balance(self, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired(self.id + ' fetchDeposits() requires self.apiKey or userid argument')
          await self.load_markets()
          request = {
              'userid': self.apiKey,
          }
          response = await self.publicGetBalance(self.extend(request, params))
          return self.parse_balance(response)
  
      async def fetch_order_book(self, symbol, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          if limit is not None:
              request['limit'] = limit  # default = maximum = 100
          response = await self.marketGetDepth(self.extend(request, params))
          timestamp = self.safe_value(response, 'timestamp')
          orderbook = self.parse_order_book(response, symbol, timestamp)
          return orderbook
  
      def parse_ticker(self, ticker, market=None):
          timestamp = self.safe_integer(ticker, 'timestamp')
          #
          #     [
          #         {
          #             "symbol":"68719476706",
          #             "name":"ETH/BTC",
          #             "base":"2",
          #             "quote":"32",
          #             "timestamp":1575905991933,
          #             "datetime":"2019-12-09T15:39:51.933Z",
          #             "high":"0",
          #             "low":"0",
          #             "open":"0",
          #             "close":"0",
          #             "last":"0",
          #             "change":"0",
          #             "percentage":"0",
          #             "baseVolume":"0",
          #             "quoteVolume":"0"
          #         }
          #     ]
          #
          marketId = self.safe_string(ticker, 'symbol')
          market = self.safe_market(marketId, market)
          symbol = market['symbol']
          return self.safe_ticker({
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'high': self.safe_string(ticker, 'high'),
              'low': self.safe_string(ticker, 'low'),
              'bid': None,
              'bidVolume': None,
              'ask': None,
              'askVolume': None,
              'vwap': self.safe_string(ticker, 'weightedAvgPrice'),
              'open': self.safe_string(ticker, 'open'),
              'close': self.safe_string(ticker, 'close'),
              'last': self.safe_string(ticker, 'last'),
              'previousClose': None,  # previous day close
              'change': self.safe_string(ticker, 'change'),
              'percentage': self.safe_string(ticker, 'percentage'),
              'average': None,
              'baseVolume': self.safe_string(ticker, 'baseVolume'),
              'quoteVolume': self.safe_string(ticker, 'quoteVolume'),
              'info': ticker,
          }, market, False)
  
      async def fetch_ticker(self, symbol, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          response = await self.marketGetTickers(self.extend(request, params))
          #
          #     [
          #         {
          #             "symbol":"68719476706",
          #             "name":"ETH/BTC",
          #             "base":"2",
          #             "quote":"32",
          #             "timestamp":1575905991933,
          #             "datetime":"2019-12-09T15:39:51.933Z",
          #             "high":"0",
          #             "low":"0",
          #             "open":"0",
          #             "close":"0",
          #             "last":"0",
          #             "change":"0",
          #             "percentage":"0",
          #             "baseVolume":"0",
          #             "quoteVolume":"0"
          #         }
          #     ]
          #
          if isinstance(response, list):
              ticker = self.safe_value(response, 0)
              if ticker is None:
                  raise BadResponse(self.id + ' fetchTicker() returned an empty response')
              return self.parse_ticker(ticker, market)
          return self.parse_ticker(response, market)
  
      async def fetch_bids_asks(self, symbols=None, params={}):
          await self.load_markets()
          response = await self.marketGetDepth(params)
          return self.parse_tickers(response, symbols)
  
      async def fetch_tickers(self, symbols=None, params={}):
          await self.load_markets()
          response = await self.marketGetTickers(params)
          return self.parse_tickers(response, symbols)
  
      def parse_ohlcv(self, ohlcv, market=None):
          #
          #     [
          #         1591505760000,
          #         "242.7",
          #         "242.76",
          #         "242.69",
          #         "242.76",
          #         "0.1892"
          #     ]
          #
          return [
              self.safe_integer(ohlcv, 0),
              self.safe_number(ohlcv, 1),
              self.safe_number(ohlcv, 2),
              self.safe_number(ohlcv, 3),
              self.safe_number(ohlcv, 4),
              self.safe_number(ohlcv, 5),
          ]
  
      async def fetch_ohlcv(self, symbol, timeframe='1m', since=None, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
              'timeframe': self.timeframes[timeframe],
          }
          if since is not None:
              request['since'] = since
          if limit is not None:
              request['limit'] = limit
          response = await self.marketGetKlines(self.extend(request, params))
          #
          #     [
          #         [1591505760000,"242.7","242.76","242.69","242.76","0.1892"],
          #         [1591505820000,"242.77","242.83","242.7","242.72","0.6378"],
          #         [1591505880000,"242.72","242.73","242.61","242.72","0.4141"],
          #     ]
          #
          return self.parse_ohlcvs(response, market, timeframe, since, limit)
  
      def parse_trade(self, trade, market=None):
          #
          # public trades
          #  {
          #      "id":"d38a5bc4b651106f9d6abf9ced671961909be215",
          #      "timestamp":1642522255864,
          #      "symbol":"122406567940",
          #      "side":"sell",
          #      "price":"0.12",
          #      "amount":"0.5747"
          #  }
          #
          # private trades
          #  {
          #      "id":"905b6ff62b6c90eb5b8c0f7ad0f6bccf018d15e4",
          #      "timestamp":1642525375299,
          #      "datetime":"2022-01-18T17:02:55.299Z",
          #      "symbol":"122406567940",
          #      "userid":"slimmjimm@gmail.com",
          #      "otherUserid":"nakamoto@gmail.com",
          #      "takerOrMaker":"maker",
          #      "side":"sell",
          #      "txid":"036a89648352732f26a2b6680331dd7887a5c800",
          #      "type":"market",
          #      "order":"84749f1ca91541d97e400f628d5bb7b1e418a738",
          #      "fee": {
          #          "cost":"0.000611176192",
          #          "rate":"0.0008",
          #          "code":57,"name":"USDT"
          #          },
          #      "cost":"0.76397024",
          #      "price":"0.01216",
          #      "amount":"62.8265",
          #      "average":"0.01216",
          #      "name":"DOGE/USDT"
          #  }
          #
          timestamp = self.safe_integer(trade, 'timestamp')
          priceString = self.safe_string(trade, 'price')
          amountString = self.safe_string(trade, 'amount')
          costString = self.safe_string(trade, 'cost')
          id = self.safe_string(trade, 'id')
          type = self.safe_string(trade, 'type')
          takerOrMaker = self.safe_string(trade, 'takerOrMaker')
          side = self.safe_string(trade, 'side')
          datetime = self.iso8601(timestamp)  # self.safe_string(trade, 'datetime')
          order = self.safe_string(trade, 'order')
          symbol = None
          if market is None:
              marketId = self.safe_string(trade, 'symbol')
              market = self.safe_value(self.markets_by_id, marketId)
          if market is not None:
              symbol = market['symbol']
          feeData = self.safe_value(trade, 'fee')
          feeCostString = self.safe_string(feeData, 'cost')
          feeRateString = self.safe_string(feeData, 'rate')
          feeCode = self.safe_string(feeData, 'code')
          feeCurrency = self.safe_currency_code(feeCode)
          fee = {
              'currency': feeCurrency,
              'cost': feeCostString,
              'rate': feeRateString,
          }
          return self.safe_trade({
              'info': trade,
              'timestamp': timestamp,
              'datetime': datetime,
              'symbol': symbol,
              'id': id,
              'order': order,
              'type': type,
              'takerOrMaker': takerOrMaker,
              'side': side,
              'price': priceString,
              'amount': amountString,
              'cost': costString,
              'fee': fee,
          }, market)
  
      async def fetch_trades(self, symbol, since=None, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'symbol': market['id'],
          }
          if since is not None:
              request['since'] = since
          if limit is not None:
              request['limit'] = limit  # default = 100, maximum = 500
          response = await self.marketGetTrades(self.extend(request, params))
          return self.parse_trades(response, market, since, limit)
  
      def parse_order(self, order, market=None):
          status = self.safe_string(order, 'status')
          symbol = None
          marketId = self.safe_string(order, 'symbol')
          if marketId in self.markets_by_id:
              market = self.markets_by_id[marketId]
          else:
              baseId = self.safe_string(order, 'base')
              quoteId = self.safe_string(order, 'quote')
              if (baseId is not None) and (quoteId is not None):
                  base = self.safe_currency_code(baseId)
                  quote = self.safe_currency_code(quoteId)
                  symbol = base + '/' + quote
          if (symbol is None) and (market is not None):
              symbol = market['symbol']
          timestamp = self.safe_integer(order, 'timestamp')
          datetime = self.safe_string(order, 'datetime')
          lastTradeTimestamp = self.safe_integer(order, 'lastTradeTimestamp')
          price = self.safe_string(order, 'price')
          amount = self.safe_string(order, 'amount')
          filled = self.safe_string(order, 'filled')
          remaining = self.safe_string(order, 'remaining')
          cost = self.safe_string(order, 'cost')
          average = self.safe_string(order, 'average')
          id = self.safe_string(order, 'id')
          type = self.safe_string(order, 'type')
          side = self.safe_string(order, 'side')
          feeData = self.safe_value(order, 'fee')
          feeCost = self.safe_number(feeData, 'cost')
          feeRate = self.safe_number(feeData, 'rate')
          feeCode = self.safe_string(feeData, 'code')
          feeCurrency = self.safe_currency_code(feeCode)
          fee = {
              'currency': feeCurrency,
              'cost': feeCost,
              'rate': feeRate,
          }
          return self.safe_order({
              'info': order,
              'id': id,
              'clientOrderId': None,
              'timestamp': timestamp,
              'datetime': datetime,
              'lastTradeTimestamp': lastTradeTimestamp,
              'symbol': symbol,
              'type': type,
              'timeInForce': None,
              'postOnly': None,
              'side': side,
              'price': price,
              'stopPrice': None,
              'amount': amount,
              'cost': cost,
              'average': average,
              'filled': filled,
              'remaining': remaining,
              'status': status,
              'fee': fee,
              'trades': None,
          }, market)
  
      async def create_order(self, symbol, type, side, amount, price=None, params={}):
          self.check_required_dependencies()
          if self.apiKey is None:
              raise ArgumentsRequired('createOrder() requires self.apiKey or userid in params')
          await self.load_markets()
          market = self.market(symbol)
          sideNum = None
          typeNum = None
          if side == 'sell':
              sideNum = 1
          else:
              sideNum = 2
          if type == 'limit':
              typeNum = 1
          else:
              typeNum = 2
              price = 0
          normalSymbol = market['normalSymbol']
          baseId = market['baseId']
          baseCurrency = self.currency(market['base'])
          amountTruncated = self.amount_to_precision(symbol, amount)
          amountTruncatedPrecise = Precise(amountTruncated)
          amountTruncatedPrecise.reduce()
          amountTruncatedPrecise.decimals -= baseCurrency['precision']
          amountChain = str(amountTruncatedPrecise)
          amountChainString = self.number_to_string(amountChain)
          quoteId = market['quoteId']
          quoteCurrency = self.currency(market['quote'])
          priceRounded = self.price_to_precision(symbol, price)
          priceRoundedPrecise = Precise(priceRounded)
          priceRoundedPrecise.reduce()
          priceRoundedPrecise.decimals -= quoteCurrency['precision']
          priceChain = str(priceRoundedPrecise)
          priceChainString = self.number_to_string(priceChain)
          now = self.milliseconds()
          expiryDelta = self.safe_integer(self.options, 'orderExpiration', 31536000000)
          expiration = self.milliseconds() + expiryDelta
          datetime = self.iso8601(now)
          datetime = datetime.split('.')[0]
          expirationDatetime = self.iso8601(expiration)
          expirationDatetime = expirationDatetime.split('.')[0]
          defaultDappId = 'Sagittarius'
          dappId = self.safe_string(params, 'dappId', defaultDappId)
          defaultFee = self.safe_string(self.options, 'fee', '300000000000000')
          totalFeeRate = self.safe_string(params, 'totalFeeRate', 8)
          chainFeeRate = self.safe_string(params, 'chainFeeRate', 1)
          fee = self.safe_string(params, 'fee', defaultFee)
          eightBytes = '18446744073709551616'  # 2 ** 64
          allByteStringArray = [
              self.number_to_be(1, 32),
              self.number_to_le(int(math.floor(now / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(int(math.floor(expiration / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(32, 1),
              self.number_to_le(0, 8),
              self.number_to_le(fee, 8),  # string for 32 bit php
              self.number_to_le(len(self.apiKey), 1),
              self.encode(self.apiKey),
              self.number_to_le(sideNum, 1),
              self.number_to_le(typeNum, 1),
              self.number_to_le(len(normalSymbol), 1),
              self.encode(normalSymbol),
              self.number_to_le(Precise.string_div(amountChainString, eightBytes, 0), 8),
              self.number_to_le(Precise.string_mod(amountChainString, eightBytes), 8),
              self.number_to_le(Precise.string_div(priceChainString, eightBytes, 0), 8),
              self.number_to_le(Precise.string_mod(priceChainString, eightBytes), 8),
              self.number_to_le(0, 2),
              self.number_to_le(int(math.floor(now / 1000)), 4),
              self.number_to_le(int(math.floor(expiration / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(int(chainFeeRate), 2),
              self.number_to_le(1, 1),
              self.number_to_le(int(totalFeeRate), 2),
              self.number_to_le(int(quoteId), 4),
              self.number_to_le(int(baseId), 4),
              self.number_to_le(0, 1),
              self.number_to_le(1, 1),
              self.number_to_le(len(dappId), 1),
              self.encode(dappId),
              self.number_to_le(0, 1),
          ]
          txByteStringArray = [
              self.number_to_le(int(math.floor(now / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(int(math.floor(expiration / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(32, 1),
              self.number_to_le(0, 8),
              self.number_to_le(fee, 8),  # string for 32 bit php
              self.number_to_le(len(self.apiKey), 1),
              self.encode(self.apiKey),
              self.number_to_le(sideNum, 1),
              self.number_to_le(typeNum, 1),
              self.number_to_le(len(normalSymbol), 1),
              self.encode(normalSymbol),
              self.number_to_le(Precise.string_div(amountChainString, eightBytes, 0), 8),
              self.number_to_le(Precise.string_mod(amountChainString, eightBytes), 8),
              self.number_to_le(Precise.string_div(priceChainString, eightBytes, 0), 8),
              self.number_to_le(Precise.string_mod(priceChainString, eightBytes), 8),
              self.number_to_le(0, 2),
              self.number_to_le(int(math.floor(now / 1000)), 4),
              self.number_to_le(int(math.floor(expiration / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(int(chainFeeRate), 2),
              self.number_to_le(1, 1),
              self.number_to_le(int(totalFeeRate), 2),
              self.number_to_le(int(quoteId), 4),
              self.number_to_le(int(baseId), 4),
              self.number_to_le(0, 1),
              self.number_to_le(1, 1),
              self.number_to_le(len(dappId), 1),
              self.encode(dappId),
              self.number_to_le(0, 1),
          ]
          txbytestring = self.binary_concat_array(txByteStringArray)
          txidhash = self.hash(txbytestring, 'sha256', 'hex')
          txid = txidhash[0:40]
          orderidByteStringArray = [
              self.number_to_le(len(txid), 1),
              self.encode(txid),
              self.number_to_be(0, 4),
          ]
          orderidbytestring = self.binary_concat_array(orderidByteStringArray)
          orderidhash = self.hash(orderidbytestring, 'sha256', 'hex')
          orderid = orderidhash[0:40]
          bytestring = self.binary_concat_array(allByteStringArray)
          hash = self.hash(bytestring, 'sha256', 'hex')
          signature = self.ecdsa(hash, self.secret, 'secp256k1', None, True)
          recoveryParam = self.binary_to_base16(self.number_to_le(self.sum(signature['v'], 31), 1))
          mySignature = recoveryParam + signature['r'] + signature['s']
          operation = {
              'now': datetime,
              'expiration': expirationDatetime,
              'fee': fee,
              'creator': self.apiKey,
              'side': sideNum,
              'order_type': typeNum,
              'market_name': normalSymbol,
              'amount': amountChain,
              'price': priceChain,
              'use_btt_as_fee': False,
              'money_id': int(quoteId),
              'stock_id': int(baseId),
              'custom_no_btt_fee_rate': int(totalFeeRate),
              'custom_btt_fee_rate': int(chainFeeRate),
          }
          fatty = {
              'timestamp': datetime,
              'expiration': expirationDatetime,
              'operations': [
                  [
                      32,
                      operation,
                  ],
              ],
              'validate_type': 0,
              'dapp': dappId,
              'signatures': [
                  mySignature,
              ],
          }
          request = {
              'trObj': self.json(fatty),
          }
          response = await self.publicPostTransactionCreateorder(request)
          timestamp = self.milliseconds()
          statusCode = self.safe_string(response, 'code')
          status = 'open' if (statusCode == '0') else 'failed'
          return {
              'info': response,
              'id': orderid,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': None,
              'status': status,
              'symbol': None,
              'type': None,
              'side': None,
              'price': None,
              'amount': None,
              'filled': None,
              'remaining': None,
              'cost': None,
              'trades': None,
              'fee': None,
              'clientOrderId': None,
              'average': None,
          }
  
      async def fetch_order(self, id, symbol=None, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchOrder() requires self.apiKey or userid argument')
          await self.load_markets()
          request = {
              'userid': self.apiKey,
          }
          market = None
          if symbol is not None:
              market = self.markets[symbol]
              request['symbol'] = market['id']
          request['id'] = id
          response = await self.publicGetOrders(self.extend(request, params))
          return self.parse_order(response, market)
  
      async def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchOpenOrders() requires self.apiKey or userid argument')
          await self.load_markets()
          request = {
              'userid': self.apiKey,
          }
          market = None
          if symbol is not None:
              market = self.market(symbol)
              request['symbol'] = market['id']
          if limit is not None:
              request['limit'] = limit
          if since is not None:
              request['since'] = since
          response = await self.publicGetOrdersOpen(self.extend(request, params))
          return self.parse_orders(response, market, since, limit)
  
      async def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchClosedOrders() requires self.apiKey or userid argument')
          await self.load_markets()
          market = None
          request = {
              'userid': self.apiKey,
          }
          if symbol is not None:
              market = self.market(symbol)
              request['symbol'] = market['id']
          if limit is not None:
              request['limit'] = limit
          if since is not None:
              request['since'] = since
          response = await self.publicGetOrdersClosed(self.extend(request, params))
          return self.parse_orders(response, market, since, limit)
  
      async def fetch_orders(self, symbol=None, since=None, limit=None, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchOrders() requires self.apiKey or userid argument')
          await self.load_markets()
          market = None
          request = {
              'userid': self.apiKey,
          }
          if symbol is not None:
              market = self.market(symbol)
              request['symbol'] = market['id']
          if limit is not None:
              request['limit'] = limit
          if since is not None:
              request['since'] = since
          response = await self.publicGetOrdersAll(self.extend(request, params))
          return self.parse_orders(response, market, since, limit)
  
      async def cancel_order(self, id, symbol=None, params={}):
          if self.apiKey is None:
              raise ArgumentsRequired('cancelOrder() requires hasAlreadyAuthenticatedSuccessfully')
          if symbol is None:
              raise ArgumentsRequired(self.id + ' cancelOrder() requires a symbol argument')
          await self.load_markets()
          market = self.market(symbol)
          baseId = market['baseId']
          quoteId = market['quoteId']
          normalSymbol = market['normalSymbol']
          feeAmount = '300000000000000'
          now = self.milliseconds()
          expiration = 0
          datetime = self.iso8601(now)
          datetime = datetime.split('.')[0]
          expirationDatetime = self.iso8601(expiration)
          expirationDatetime = expirationDatetime.split('.')[0]
          defaultDappId = 'Sagittarius'
          dappId = self.safe_string(params, 'dappId', defaultDappId)
          byteStringArray = [
              self.number_to_be(1, 32),
              self.number_to_le(int(math.floor(now / 1000)), 4),
              self.number_to_le(1, 1),
              self.number_to_le(expiration, 4),
              self.number_to_le(1, 1),
              self.number_to_le(33, 1),
              self.number_to_le(0, 8),
              self.number_to_le(feeAmount, 8),  # string for 32 bit php
              self.number_to_le(len(self.apiKey), 1),
              self.encode(self.apiKey),
              self.number_to_le(len(normalSymbol), 1),
              self.encode(normalSymbol),
              self.base16_to_binary(id),
              self.number_to_le(int(quoteId), 4),
              self.number_to_le(int(baseId), 4),
              self.number_to_le(0, 1),
              self.number_to_le(1, 1),
              self.number_to_le(len(dappId), 1),
              self.encode(dappId),
              self.number_to_le(0, 1),
          ]
          bytestring = self.binary_concat_array(byteStringArray)
          hash = self.hash(bytestring, 'sha256', 'hex')
          signature = self.ecdsa(hash, self.secret, 'secp256k1', None, True)
          recoveryParam = self.binary_to_base16(self.number_to_le(self.sum(signature['v'], 31), 1))
          mySignature = recoveryParam + signature['r'] + signature['s']
          operation = {
              'fee': feeAmount,
              'creator': self.apiKey,
              'order_id': id,
              'market_name': normalSymbol,
              'money_id': int(quoteId),
              'stock_id': int(baseId),
          }
          fatty = {
              'timestamp': datetime,
              'expiration': expirationDatetime,
              'operations': [
                  [
                      33,
                      operation,
                  ],
              ],
              'validate_type': 0,
              'dapp': dappId,
              'signatures': [
                  mySignature,
              ],
          }
          request = {
              'trObj': self.json(fatty),
          }
          response = await self.publicPostTransactionCancelorder(request)
          timestamp = self.milliseconds()
          statusCode = self.safe_string(response, 'code')
          status = 'canceled' if (statusCode == '0') else 'failed'
          return {
              'info': response,
              'id': None,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': None,
              'status': status,
              'symbol': None,
              'type': None,
              'side': None,
              'price': None,
              'amount': None,
              'filled': None,
              'remaining': None,
              'cost': None,
              'trades': None,
              'fee': None,
              'clientOrderId': None,
              'average': None,
          }
  
      async def fetch_my_trades(self, symbol=None, since=None, limit=None, params={}):
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchMyTrades() requires self.apiKey or userid argument')
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'userid': self.apiKey,
          }
          if symbol is not None:
              request['symbol'] = market['id']
          if limit is not None:
              request['limit'] = limit
          if since is not None:
              request['since'] = since
          response = await self.publicGetOrdersTrades(self.extend(request, params))
          return self.parse_trades(response, market, since, limit)
  
      async def fetch_deposits(self, code=None, since=None, limit=None, params={}):
          await self.load_markets()
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchDeposits() requires self.apiKey or userid argument')
          currency = None
          request = {
              'userid': self.apiKey,
          }
          if code is not None:
              currency = self.currency(code)
              request['currency'] = currency['id']
          if since is not None:
              request['since'] = since
          if limit is not None:
              request['limit'] = limit
          response = await self.publicGetDeposits(self.extend(request, params))
          return self.parse_transactions(response, currency, since, limit)
  
      async def fetch_withdrawals(self, code=None, since=None, limit=None, params={}):
          await self.load_markets()
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchWithdrawals() requires self.apiKey or userid argument')
          currency = None
          request = {
              'userid': self.apiKey,
          }
          if code is not None:
              currency = self.currency(code)
              request['currency'] = currency['id']
          if since is not None:
              request['since'] = since
          if limit is not None:
              request['limit'] = limit
          response = await self.publicGetWithdrawals(self.extend(request, params))
          return self.parse_transactions(response, currency, since, limit)
  
      def parse_transaction_status(self, status):
          statuses = {
              'DEPOSIT_FAILED': 'failed',
              'FEE_SEND_FAILED': 'failed',
              'FEE_FAILED': 'failed',
              'PAY_SEND_FAILED': 'failed',
              'PAY_FAILED': 'failed',
              'BTT_FAILED': 'failed',
              'WITHDDRAW_FAILED': 'failed',
              'USER_FAILED': 'failed',
              'FEE_EXECUED': 'pending',
              'PAY_EXECUED': 'pending',
              'WITHDDRAW_EXECUTED': 'pending',
              'USER_EXECUED': 'pending',
              'BTT_SUCCED': 'ok',
          }
          return self.safe_string(statuses, status, status)
  
      def parse_transaction(self, transaction, currency=None):
          id = self.safe_string(transaction, 'id')
          address = self.safe_string(transaction, 'address')
          tag = self.safe_string(transaction, 'tag')
          if tag is not None:
              if len(tag) < 1:
                  tag = None
          txid = self.safe_value(transaction, 'txid')
          currencyId = self.safe_string(transaction, 'code')
          code = self.safe_currency_code(currencyId, currency)
          timestamp = self.safe_integer(transaction, 'timestamp')
          datetime = self.safe_string(transaction, 'datetime')
          type = self.safe_string(transaction, 'type')
          status = self.parse_transaction_status(self.safe_string(transaction, 'status'))
          amount = self.safe_number(transaction, 'amount')
          feeInfo = self.safe_value(transaction, 'fee')
          feeCost = self.safe_number(feeInfo, 'cost')
          feeCurrencyId = self.safe_string(feeInfo, 'code')
          feeCode = self.safe_currency_code(feeCurrencyId, currency)
          fee = {
              'cost': feeCost,
              'currency': feeCode,
          }
          return {
              'info': transaction,
              'id': id,
              'txid': txid,
              'timestamp': timestamp,
              'datetime': datetime,
              'address': address,
              'tag': tag,
              'type': type,
              'amount': amount,
              'currency': code,
              'status': status,
              'updated': None,
              'fee': fee,
          }
  
      async def fetch_deposit_address(self, code, params={}):
          await self.load_markets()
          if not ('userid' in params) and (self.apiKey is None):
              raise ArgumentsRequired('fetchDepositAddress() requires self.apiKey or userid argument')
          currency = self.currency(code)
          request = {
              'userid': self.apiKey,
              'code': currency['id'],
          }
          response = await self.publicGetDepositaddress(request)
          firstAddress = self.safe_value(response, 0)
          address = self.safe_string(firstAddress, 'address')
          tag = self.safe_string(firstAddress, 'tag')
          chainType = self.safe_string_upper(firstAddress, 'chainType')
          self.check_address(address)
          return {
              'currency': code,
              'address': address,
              'tag': tag,
              'network': chainType,
              'info': response,
          }
  
      def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
          url = self.urls['api'][api]
          url += '/' + path
          if params:
              url += '?' + self.urlencode(params)
          return {'url': url, 'method': method, 'body': body, 'headers': headers}
  
      def handle_errors(self, code, reason, url, method, headers, body, response, requestHeaders, requestBody):
          if code == 503:
              raise DDoSProtection(self.id + ' ' + str(code) + ' ' + reason + ' ' + body)
          if response is None:
              return  # fallback to default error handler
          if 'code' in response:
              status = self.safe_string(response, 'code')
              if status == '1':
                  message = self.safe_string(response, 'msg')
                  feedback = self.id + ' ' + body
                  self.throw_exactly_matched_exception(self.exceptions, message, feedback)
                  raise ExchangeError(feedback)
  