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.base.exchange import Exchange
  import hashlib
  from ccxt.base.errors import ExchangeError
  from ccxt.base.errors import AuthenticationError
  
  
  class itbit (Exchange):
  
      def describe(self):
          return self.deep_extend(super(itbit, self).describe(), {
              'id': 'itbit',
              'name': 'itBit',
              'countries': 'US',
              'rateLimit': 2000,
              'version': 'v1',
              'has': {
                  'CORS': True,
                  'createMarketOrder': False,
              },
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/27822159-66153620-60ad-11e7-89e7-005f6d7f3de0.jpg',
                  'api': 'https://api.itbit.com',
                  'www': 'https://www.itbit.com',
                  'doc': [
                      'https://api.itbit.com/docs',
                      'https://www.itbit.com/api',
                  ],
              },
              'api': {
                  'public': {
                      'get': [
                          'markets/{symbol}/ticker',
                          'markets/{symbol}/order_book',
                          'markets/{symbol}/trades',
                      ],
                  },
                  'private': {
                      'get': [
                          'wallets',
                          'wallets/{walletId}',
                          'wallets/{walletId}/balances/{currencyCode}',
                          'wallets/{walletId}/funding_history',
                          'wallets/{walletId}/trades',
                          'wallets/{walletId}/orders',
                          'wallets/{walletId}/orders/{id}',
                      ],
                      'post': [
                          'wallet_transfers',
                          'wallets',
                          'wallets/{walletId}/cryptocurrency_deposits',
                          'wallets/{walletId}/cryptocurrency_withdrawals',
                          'wallets/{walletId}/orders',
                          'wire_withdrawal',
                      ],
                      'delete': [
                          'wallets/{walletId}/orders/{id}',
                      ],
                  },
              },
              'markets': {
                  'BTC/USD': {'id': 'XBTUSD', 'symbol': 'BTC/USD', 'base': 'BTC', 'quote': 'USD'},
                  'BTC/SGD': {'id': 'XBTSGD', 'symbol': 'BTC/SGD', 'base': 'BTC', 'quote': 'SGD'},
                  'BTC/EUR': {'id': 'XBTEUR', 'symbol': 'BTC/EUR', 'base': 'BTC', 'quote': 'EUR'},
              },
              'fees': {
                  'trading': {
                      'maker': 0,
                      'taker': 0.2 / 100,
                  },
              },
          })
  
      async def fetch_order_book(self, symbol, limit=None, params={}):
          orderbook = await self.publicGetMarketsSymbolOrderBook(self.extend({
              'symbol': self.market_id(symbol),
          }, params))
          return self.parse_order_book(orderbook)
  
      async def fetch_ticker(self, symbol, params={}):
          ticker = await self.publicGetMarketsSymbolTicker(self.extend({
              'symbol': self.market_id(symbol),
          }, params))
          serverTimeUTC = ('serverTimeUTC' in list(ticker.keys()))
          if not serverTimeUTC:
              raise ExchangeError(self.id + ' fetchTicker returned a bad response: ' + self.json(ticker))
          timestamp = self.parse8601(ticker['serverTimeUTC'])
          vwap = self.safe_float(ticker, 'vwap24h')
          baseVolume = self.safe_float(ticker, 'volume24h')
          quoteVolume = None
          if baseVolume is not None and vwap is not None:
              quoteVolume = baseVolume * vwap
          last = self.safe_float(ticker, 'lastPrice')
          return {
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'high': self.safe_float(ticker, 'high24h'),
              'low': self.safe_float(ticker, 'low24h'),
              'bid': self.safe_float(ticker, 'bid'),
              'bidVolume': None,
              'ask': self.safe_float(ticker, 'ask'),
              'askVolume': None,
              'vwap': vwap,
              'open': self.safe_float(ticker, 'openToday'),
              'close': last,
              'last': last,
              'previousClose': None,
              'change': None,
              'percentage': None,
              'average': None,
              'baseVolume': baseVolume,
              'quoteVolume': quoteVolume,
              'info': ticker,
          }
  
      def parse_trade(self, trade, market):
          timestamp = self.parse8601(trade['timestamp'])
          id = str(trade['matchNumber'])
          return {
              'info': trade,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'symbol': market['symbol'],
              'id': id,
              'order': id,
              'type': None,
              'side': None,
              'price': self.safe_float(trade, 'price'),
              'amount': self.safe_float(trade, 'amount'),
          }
  
      async def fetch_trades(self, symbol, since=None, limit=None, params={}):
          market = self.market(symbol)
          response = await self.publicGetMarketsSymbolTrades(self.extend({
              'symbol': market['id'],
          }, params))
          return self.parse_trades(response['recentTrades'], market, since, limit)
  
      async def fetch_balance(self, params={}):
          response = await self.fetch_wallets()
          balances = response[0]['balances']
          result = {'info': response}
          for b in range(0, len(balances)):
              balance = balances[b]
              currency = balance['currency']
              account = {
                  'free': float(balance['availableBalance']),
                  'used': 0.0,
                  'total': float(balance['totalBalance']),
              }
              account['used'] = account['total'] - account['free']
              result[currency] = account
          return self.parse_balance(result)
  
      async def fetch_wallets(self):
          if not self.userId:
              raise AuthenticationError(self.id + ' fetchWallets requires userId in API settings')
          params = {
              'userId': self.userId,
          }
          return self.privateGetWallets(params)
  
      async def fetch_wallet(self, walletId, params={}):
          wallet = {
              'walletId': walletId,
          }
          return self.privateGetWalletsWalletId(self.extend(wallet, params))
  
      async def fetch_open_orders(self, symbol=None, since=None, limit=None, params={}):
          return self.fetch_orders(symbol, since, limit, self.extend({
              'status': 'open',
          }, params))
  
      async def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
          return self.fetch_orders(symbol, since, limit, self.extend({
              'status': 'filled',
          }, params))
  
      async def fetch_orders(self, symbol=None, since=None, limit=None, params={}):
          walletIdInParams = ('walletId' in list(params.keys()))
          if not walletIdInParams:
              raise ExchangeError(self.id + ' fetchOrders requires a walletId parameter')
          walletId = params['walletId']
          response = await self.privateGetWalletsWalletIdOrders(self.extend({
              'walletId': walletId,
          }, params))
          orders = self.parse_orders(response, None, since, limit)
          return orders
  
      def parse_order(self, order, market=None):
          side = order['side']
          type = order['type']
          symbol = self.markets_by_id[order['instrument']]['symbol']
          timestamp = self.parse8601(order['createdTime'])
          amount = self.safe_float(order, 'amount')
          filled = self.safe_float(order, 'amountFilled')
          remaining = amount - filled
          fee = None
          price = self.safe_float(order, 'price')
          cost = price * self.safe_float(order, 'volumeWeightedAveragePrice')
          return {
              'id': order['id'],
              'info': order,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': None,
              'status': order['status'],
              'symbol': symbol,
              'type': type,
              'side': side,
              'price': price,
              'cost': cost,
              'amount': amount,
              'filled': filled,
              'remaining': remaining,
              'fee': fee,
              # 'trades': self.parse_trades(order['trades'], market),
          }
  
      def nonce(self):
          return self.milliseconds()
  
      async def create_order(self, symbol, type, side, amount, price=None, params={}):
          if type == 'market':
              raise ExchangeError(self.id + ' allows limit orders only')
          walletIdInParams = ('walletId' in list(params.keys()))
          if not walletIdInParams:
              raise ExchangeError(self.id + ' createOrder requires a walletId parameter')
          amount = str(amount)
          price = str(price)
          market = self.market(symbol)
          order = {
              'side': side,
              'type': type,
              'currency': market['id'].replace(market['quote'], ''),
              'amount': amount,
              'display': amount,
              'price': price,
              'instrument': market['id'],
          }
          response = await self.privatePostWalletsWalletIdOrders(self.extend(order, params))
          return {
              'info': response,
              'id': response['id'],
          }
  
      async def fetch_order(self, id, symbol=None, params={}):
          walletIdInParams = ('walletId' in list(params.keys()))
          if not walletIdInParams:
              raise ExchangeError(self.id + ' fetchOrder requires a walletId parameter')
          return await self.privateGetWalletsWalletIdOrdersId(self.extend({
              'id': id,
          }, params))
  
      async def cancel_order(self, id, symbol=None, params={}):
          walletIdInParams = ('walletId' in list(params.keys()))
          if not walletIdInParams:
              raise ExchangeError(self.id + ' cancelOrder requires a walletId parameter')
          return await self.privateDeleteWalletsWalletIdOrdersId(self.extend({
              'id': id,
          }, params))
  
      def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
          url = self.urls['api'] + '/' + self.version + '/' + self.implode_params(path, params)
          query = self.omit(params, self.extract_params(path))
          if method == 'GET' and query:
              url += '?' + self.urlencode(query)
          if method == 'POST' and query:
              body = self.json(query)
          else:
              body = ''
          if api == 'private':
              self.check_required_credentials()
              nonce = str(self.nonce())
              timestamp = nonce
              auth = [method, url, body, nonce, timestamp]
              message = nonce + self.json(auth).replace('\\/', '/')
              hash = self.hash(self.encode(message), 'sha256', 'binary')
              binhash = self.binary_concat(url, hash)
              signature = self.hmac(binhash, self.encode(self.secret), hashlib.sha512, 'base64')
              headers = {
                  'Authorization': self.apiKey + ':' + signature,
                  'Content-Type': 'application/json',
                  'X-Auth-Timestamp': timestamp,
                  'X-Auth-Nonce': nonce,
              }
          return {'url': url, 'method': method, 'body': body, 'headers': headers}
  
      async def request(self, path, api='public', method='GET', params={}, headers=None, body=None):
          response = await self.fetch2(path, api, method, params, headers, body)
          if 'code' in response:
              raise ExchangeError(self.id + ' ' + self.json(response))
          return response
  