示例#1
0
文件: ib_class.py 项目: anthonyng2/ib
    print callback.bond_ContractDetails.__dict__    
    
    
    
    
    
    # Market Depth #######################################################################
    # reqMktDepth          --->   updateMktDepth        self.update_MktDepth
    #                      --->   update_MktDepthL2     self.update_MktDepthL2
    ###################################################################################'''     
    print "Testing Market Depth Group \n"
    contract_info9 = create.create_contract('EUR', 'CASH', 'IDEALPRO', 'USD')
    tws.reqMktDepth(7000, contract_info9, 3)
    time.sleep(5)
    print callback.update_MktDepth
    tws.cancelMktDepth(7000)





    # News Bulletin ######################################################################
    # reqNewsBulletins     --->   updateNewsBulletin    self.update_NewsBulletin_msgId
    #                                                   self.update_NewsBulletin_msgType
    #                                                   self.update_NewsBulletin_message
    #                                                   self.update_NewsBulletin_origExchange
    ###################################################################################'''     
    print "Testing News Bulletin Group \n"
    tws.reqNewsBulletins(1)
    time.sleep(20)
    tws.cancelNewsBulletins()
示例#2
0
    while not callback.contract_Details_flag:
        time.sleep(1)
    callback.contract_Details_flag = False
    print callback.bond_ContractDetails_reqId
    print callback.bond_ContractDetails.__dict__

    # Market Depth #######################################################################
    # reqMktDepth          --->   updateMktDepth        self.update_MktDepth
    #                      --->   update_MktDepthL2     self.update_MktDepthL2
    ###################################################################################'''
    print "Testing Market Depth Group \n"
    contract_info9 = create.create_contract('EUR', 'CASH', 'IDEALPRO', 'USD')
    tws.reqMktDepth(7000, contract_info9, 3)
    time.sleep(5)
    print callback.update_MktDepth
    tws.cancelMktDepth(7000)

    # News Bulletin ######################################################################
    # reqNewsBulletins     --->   updateNewsBulletin    self.update_NewsBulletin_msgId
    #                                                   self.update_NewsBulletin_msgType
    #                                                   self.update_NewsBulletin_message
    #                                                   self.update_NewsBulletin_origExchange
    ###################################################################################'''
    print "Testing News Bulletin Group \n"
    tws.reqNewsBulletins(1)
    time.sleep(20)
    tws.cancelNewsBulletins()

    # Financial Advisors Group ###########################################################
    # reqManagedAccts      --->   managedAccounts       self.managed_Accounts
    ###################################################################################'''
示例#3
0
class IBClient(object):
    """IB Socket client"""
    def __init__(self,
                 host='localhost',
                 port=7496,
                 client_id=0,
                 client_name='IB'):
        """

        Args:
            host: TWS 所在机器的 IP或域名
            port: TWS配置的接收外部API的端口.TWS default value: 7496; TWS demo account default value: 7497
            client_id: API<->TWS之间 sock连接的ID
            client_name: 本次连接的名字。可选
        """

        self.client_name = client_name
        self.host = host  # host IP address in a string; e.g. '127.0.0.1', 'localhost'
        self.port = port  # socket port;
        self.client_id = client_id  # socket client id

        self.tickerId = 0  # known as ticker ID or request ID
        self.ipc_msg_dict = {
        }  # key: ticker ID or request ID; value: request and response objects; response objects ususally carrys data, Events, and Status
        self.order_id = 0  # current available order ID
        self.order_history = {
        }  # key: ticker ID or request ID; value: request and response objects; response objects ususally carrys data, Events, and Status

        # dict to store market depth data; key: (client_id, request_id)
        self.market_depth_buffer = dict()

        self.context = None  # key: ticker ID or request ID; value: request and response objects; response objects ususally carrys data, Events, and Status
        self.portfolio = None
        self.account = None

        self.wrapper = IBMsgWrapper(
            self)  # the instance with IB message callback methods
        self.connection = EClientSocket(
            self.wrapper)  # low layer socket client

        # TWS's data connection status
        self.hmdf_status_dict = {}
        for farm in IB_FARM_NAME_LS:
            self.hmdf_status_dict[farm] = 'unknown'

        # EVENTS
        self.conn_down_event = Event()  # sock connection event
        self.mdf_conn_event = Event()  # market data connection event
        self.hdf_conn_event = Event()  # hist data connection event

        self.order_event = Event()
        self.account_event = Event()
        self.get_order_event = Event()
        self.tick_snapshot_req_end = Event()

        # LOCKER
        self.req_id_locker = threading.Lock()

        # Order ID cond
        self.order_id_cond = threading.Condition()

        # CONSTANT VALUES
        self.PRICE_DF_HEADER1 = [
            'time', 'open', 'high', 'low', 'close', 'volume'
        ]
        self.PRICE_DF_HEADER2 = [
            'symbol', 'time', 'open', 'high', 'low', 'close', 'volume'
        ]

    @property
    def connected(self):
        return self.connection.m_connected

    def connect(self):
        """ Connect to socket host, e.g. TWS """
        self.connection.eConnect(self.host, self.port, self.client_id)

        timeout = 5.
        count = 0.
        while not self.connected and count < timeout:
            count += 0.05
            sleep(0.05)

        if self.connected:
            self.order_id = self.connection.reqIds(-1)
        else:
            print('failed to connect.')

        return self.connected

    def close(self):
        """ disconnect from IB host """
        self.disconnect()

    def disconnect(self):
        """ disconnect from IB host """
        # self.disable_account_info_update()
        self.connection.eDisconnect()

    def __get_new_request_id(self):
        '''' generate a new request ID (ticker ID) in a thread safe way '''
        self.req_id_locker.acquire()
        self.tickerId += 1
        __id = self.tickerId
        self.req_id_locker.release()
        return __id

    def setup_account(self, account_id, starting_cash):
        self.portfolio = Portfolio(account_id, starting_cash)
        self.account = self.portfolio.account
        if self.connected:
            # TODO: may need to move this to a thread or at user layer
            self.enable_account_info_update()

    #
    # Tick Data Methods
    #
    def request_tick_data(self, contract):
        """ Subscribe tick data for a specified contract
        Args:
            contract: a legal IBPY Contract object or a string for U.S. stock only
        Returns:
            tickerId:  the ID of this request. this ID could be used to cancel request later.
            tick_data: a reference to the tick data dictionary which will be updated with latest quote.
        """
        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        __id = self.__get_new_request_id()
        request = RequestDetails('reqMktData', 'Snapshot', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # False - indicating request live quotes instead of a snapshot
        self.connection.reqMktData(__id, contract, '', False)

        return __id, self.ipc_msg_dict[__id][1].tick_data

    def get_tick_snapshot(self, contract, max_wait_time=5):
        """ Get a snapshot with default tick types and corresponding tick data for a given contract

        Note: 1) no generic ticks can be specified.
              2) only return data fields which have changed within an 11 second interval.
              If it is necessary for an API client to receive a certain data field, it is better
              to subscribe to market data until that field has been returned and then cancel the market data request.

        Known Issues:
              1) When called outside of market hours, get_tick_snapshot request could take more than 10 sec
                 to reach the end (tickSnapshotEnd)
              2) Need to check Issue#1 during market hours

        Args:
            contract: a legal IBPY Contract object or a string for U.S. stock only

        Returns:
            a copy of tick data dictionary
        Raises:
            None
        """
        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        __id = self.__get_new_request_id()

        request = RequestDetails('reqMktData', 'Snapshot', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # send reqMktData req
        # True - indicating request live quotes instead of a snapshot
        #
        # Important:
        # When set it to 'True', each regulatory snapshot made will incur a fee of 0.01 USD to the account.
        # This applies to both live and paper accounts.
        self.connection.reqMktData(__id, contract, '', True)

        response.event.wait(max_wait_time)
        if response.event.is_set():
            # tickPrice() and tickeSize() may write after tickSnapshotEnd() completed.
            sleep(0.5)
            snapshot = copy(response.tick_data)
            # remove the from dict and free the memory
            response.event.clear()
            self.ipc_msg_dict.pop(__id)
        else:
            response.event.clear()
            self.ipc_msg_dict.pop(__id)
            raise RuntimeError(
                'reqMktData (get_tick_snapshot) is timeout. max_wait_time=%d' %
                (max_wait_time))

        return snapshot

    def cancel_tick_request(self, tickerId):
        """ Cancel tick data request for a given ticker ID (request ID)

        Args:
            tickerId: the ticker request to cancel
        Returns:
            None
        Raises:
            None
        """
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        # TODO: check if tickerID is in the list
        self.connection.cancelMktData(tickerId)
        self.ipc_msg_dict.pop(tickerId)
        return

    def request_realtime_price(self, contract, price_type='TRADES'):
        """ Get real-time price/volume for a specific contract, e.g. stocks, futures and option contracts.
            IB API support only 5 sec duration between two real-time bar (price) records.
        Args:
            contract: one IB contract instance
            price_type: 'TRADES', 'MIDPOINT', 'BID',  'ASK'
        Returns:
            tickerId: the request ID; it's also the key to get response msg from ipc_msg_dict
            realtime_price: a reference to the real-time price (OCHL) list which will be updated
                            with latest price (OCHL) record.
        Raises:
            None
        """
        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if price_type not in ['TRADES', 'MIDPOINT', 'BID', 'ASK']:
            raise TypeError("Got incorrect price_type")

        __id = self.__get_new_request_id()
        request = RequestDetails('reqHistoricalData', price_type, contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)
        # only 5 sec duration supported
        # price_type: 'TRADES', 'MIDPOINT', 'BID',  'ASK'
        # useRTH - set to True
        self.connection.reqRealTimeBars(__id, contract, 5, price_type, True)

        return __id, self.ipc_msg_dict[__id][1].rt_price

    def cancel_realtime_price(self, req_id):
        """ Cancel realtime price/volumne request.
        Args:
            req_id: the ticker ID (or request ID)
        Returns:
            None
        """
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')
        self.connection.cancelRealTimeBars(req_id)

        # remove request/response data from ipc_msg_dict
        self.ipc_msg_dict.pop(req_id)
        return

    #
    # Historical Data Methods
    #
    def get_price_history(self,
                          contract,
                          ts_end,
                          duration='1 M',
                          frequency='daily',
                          max_wait_time=30):
        """ Get price/volumne history for a specific contract, e.g. stocks, futures and option ocntract.

        Args:
            contract: one IB contract instance
            ts_end: a string in '%Y%m%d' or '%Y%m%d %H:%M:%S' format
            duration: string
                        X S	Seconds
                        X D	Day
                        X W	Week
                        X M	Month
                        X Y	Year
            frequency: {‘daily’, ‘minute’}, optional; Resolution of the data to be returned.
            max_wait_time: int; max num of sec to wait after calling reqHistoricalData
        Returns:
            pandas Panel/DataFrame/Series – The pricing data that was requested.

                            Open  High   Low  Close     Volume
                Date
                2017-12-15  6.96  6.96  6.86   6.90  366523000
                2017-12-18  6.88  7.02  6.87   6.98  303664000
                2017-12-19  7.00  7.02  6.98   7.01  299342000

        Raises:
            None

        """
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError("contract must be a Contract object or string")

        if frequency == 'daily':
            bar_size = '1 day'
        elif frequency == 'minute':
            bar_size = '1 min'
        elif frequency == 'second':
            bar_size = '1 sec'
        elif frequency == '5 seconds':
            bar_size = '5 secs'
        else:
            raise ValueError("get_price_history: incorrect frequency value")

        if len(ts_end) == 8 or len(ts_end) == 17:
            if len(ts_end) == 8:
                ts_end = ts_end + ' 23:59:59'
        else:
            print('get_price_history: incorrect ts_end format')
            return

        __id = self.__get_new_request_id()
        request = RequestDetails('reqHistoricalData', '', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        self.connection.reqHistoricalData(tickerId=__id,
                                          contract=contract,
                                          endDateTime=ts_end,
                                          durationStr=duration,
                                          barSizeSetting=bar_size,
                                          whatToShow='TRADES',
                                          useRTH=0,
                                          formatDate=1)

        df = None
        response.event.wait(max_wait_time)
        if response.event.is_set():
            df = pd.DataFrame(response.price_hist,
                              columns=self.PRICE_DF_HEADER1)
            # clean up the time format
            print(df.head(10))
            print(response.price_hist)
            date = df['time'][0]

            if len(date) == 8:
                df['time'] = pd.to_datetime(df['time'], format='%Y%m%d')
            elif len(date) == 18:
                # len('20161020 23:46:00') --> 2 Spaces!!!!!
                # adj_date = datetime.strptime(date, "%Y%m%d  %H:%M:%S")
                df['time'] = pd.to_datetime(df['time'],
                                            format="%Y%m%d  %H:%M:%S")
            else:
                # adj_date = datetime.strptime(date, "%Y%m%d %H:%M:%S")
                df['time'] = pd.to_datetime(df['time'],
                                            format="%Y%m%d %H:%M:%S")

            # TODO: check for timezone
            # exchange = request.contract.m_exchange
            # server_timezone = pytz.timezone("Asia/Shanghai")  # timezone where the server runs
            # mkt_timezone = pytz.timezone(IBEXCHANGE.get_timezone(exchange))  # Get Exchange's timezone
            # adj_date = server_timezone.localize(adj_date).astimezone(
            #     mkt_timezone)  # covert server time to Exchange's time
            # adj_date = adj_date.strftime("%Y%m%d %H:%M:%S")  # from datetime to string

            df = df.set_index('time')
            # remove the from dict and free the memory
            response.event.clear()
            self.ipc_msg_dict.pop(__id)
        else:
            self.ipc_msg_dict.pop(__id)
            print('reqHistoricalData is timeout.')
            raise RuntimeError('reqHistoricalData is timeout.')

        return df

    def get_stock_price_history(self,
                                security_list,
                                ts_end,
                                duration='1 M',
                                frequency='daily',
                                max_wait_time=30):
        """Get price/volumne history for a list of stocks.

        Args:
            security_list: a list of security symbols, .e.g. ['IBM', 'DATA']
            endDateTime: a string in '%Y%m%d' or '%Y%m%d %H:%M:%S' format
            durationStr: see IB API doc.
            frequency: {‘daily’, ‘minute’}, optional; Resolution of the data to be returned.
            max_wait_time: int; max num of sec to wait after calling reqHistoricalData
        Returns:
            pandas Panel/DataFrame/Series – The pricing data that was requested.
        Raises:
            None

        """
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        num_secs = len(security_list)
        if num_secs <= 0:
            return

        if frequency == 'daily':
            bar_size = '1 day'
        elif frequency == 'minute':
            bar_size = '1 min'
        elif frequency == 'second':
            bar_size = '1 sec'
        elif frequency == '5 seconds':
            bar_size = '5 secs'
        else:
            print('get_stock_price_history: incorrect frequency')
            return

        if len(ts_end) == 8 or len(ts_end) == 17:
            if len(ts_end) == 8:
                ts_end = ts_end + ' 23:59:59'
        else:
            print('get_stock_price_history: incorrect ts_end format')
            return

        # ['Symbol', 'Date', 'Open', 'High', 'Low', 'Close', 'Volume']
        df = pd.DataFrame(columns=self.PRICE_DF_HEADER2)
        for sec in security_list:

            __id = self.__get_new_request_id()

            contract = new_stock_contract(sec)
            request = RequestDetails('reqHistoricalData', '', contract)
            response = ResponseDetails()
            self.ipc_msg_dict[__id] = (request, response)

            self.connection.reqHistoricalData(tickerId=__id,
                                              contract=contract,
                                              endDateTime=ts_end,
                                              durationStr=duration,
                                              barSizeSetting=bar_size,
                                              whatToShow='TRADES',
                                              useRTH=0,
                                              formatDate=1)

            response.event.wait(max_wait_time)
            if response.event.is_set():

                df_tmp = pd.DataFrame(response.price_hist,
                                      columns=self.PRICE_DF_HEADER1)
                # clean up the time format
                date = df_tmp['time'][0]

                if len(date) == 8:
                    df_tmp['time'] = pd.to_datetime(df_tmp['time'],
                                                    format='%Y%m%d')
                elif len(date) == 18:
                    # len('20161020 23:46:00') --> 2 Spaces!!!!!
                    # adj_date = datetime.strptime(date, "%Y%m%d  %H:%M:%S")
                    df_tmp['time'] = pd.to_datetime(df_tmp['time'],
                                                    format="%Y%m%d  %H:%M:%S")
                else:
                    # adj_date = datetime.strptime(date, "%Y%m%d %H:%M:%S")
                    df_tmp['time'] = pd.to_datetime(df_tmp['time'],
                                                    format="%Y%m%d %H:%M:%S")

                # TODO: check for timezone
                # exchange = request.contract.m_exchange
                # server_timezone = pytz.timezone("Asia/Shanghai")  # timezone where the server runs
                # mkt_timezone = pytz.timezone(IBEXCHANGE.get_timezone(exchange))  # Get Exchange's timezone
                # adj_date = server_timezone.localize(adj_date).astimezone(
                #     mkt_timezone)  # covert server time to Exchange's time
                # adj_date = adj_date.strftime("%Y%m%d %H:%M:%S")  # from datetime to string

                df_tmp['symbol'] = pd.DataFrame([sec] * len(df_tmp))
                df = df.append(df_tmp)
                # remove the from dict and free the memory
                self.ipc_msg_dict.pop(__id)
                response.event.clear()

            else:
                self.ipc_msg_dict.pop(__id)
                raise RuntimeError('reqHistoricalData is timeout.')

        return df

    def get_contract_price_history(self,
                                   contract,
                                   ts_end,
                                   duration='1 M',
                                   frequency='daily',
                                   max_wait_time=30):
        # Same function as get_price_history
        return self.get_price_history(contract, ts_end, duration, frequency,
                                      max_wait_time)

    #
    # Placing/Changing/Canceling Order Methods
    #

    def request_order_id(self):
        """ request order id from TWS client """

        # request next valid order ID from IB host; this request will update self.order_id
        # details: https: // interactivebrokers.github.io / tws - api / order_submission.html
        self.connection.reqIds(-1)

        self.order_id_cond.acquire()
        self.order_id_cond.wait()
        new_order_id = self.order_id
        self.order_id_cond.release()

        return new_order_id

    def get_order_status(self, order_id):
        """
        orderStatus 1 PreSubmitted 0 1000 0.0 1216371623 0 0.0 8615 None
        {'contract': <ib.ext.Contract.Contract object at 0x10ebb7cf8>,
        'order': <ib.ext.Order.Order object at 0x10ebb7668>,
        'status': 'PreSubmitted', 'filled': False, 'permId': 1216371623,
        'remaining': 1000, 'avgFillPrice': 0.0, 'lastFillPrice': 0.0, 'whyHeld': None}

        :param order_id:
        :return:
        """

        key = (self.client_id, order_id)

        order_info = self.order_history.get(key, None)

        if order_info:
            return order_info['status']
        else:
            return ""

    def order_amount(self, contract, amount, style=MarketOrder()):
        ''' Place an order. Order X units of security Y.
            Warning: only mkt order and limited order work; calling stoploss/stoplimited order will result in IB disconnection.
        :param contract: A IB Contract object.
        :param amount: The integer amount of shares. Positive means buy, negative means sell.
        :param style:
        :return:
        '''
        if amount == 0:
            return -1
        elif amount > 0:
            action = 'BUY'
        else:
            action = 'SELL'

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if not isinstance(contract, Contract):
            raise TypeError("contract must be a contract object")

        order = Order()

        # request next valid order ID from IB host; this request will update self.order_id
        # details: https: // interactivebrokers.github.io / tws - api / order_submission.html
        # self.connection.reqIds(-1)
        # sleep(0.05)
        order.m_orderId = self.request_order_id()

        order.m_client_id = self.client_id
        order.m_action = action
        order.m_totalQuantity = abs(amount)
        order.m_orderType = style.order_type
        if style.limit_price is not None:
            order.m_lmtPrice = style.limit_price
        if style.stop_price is not None:
            order.m_auxPrice = style.stop_price
        order.m_overridePercentageConstraints = True  # override TWS order size constraints

        # place order
        self.connection.placeOrder(order.m_orderId, contract, order)

        # self.order_history[(self.order_id, self.client_id)] = order

        # TODO: wait for returns from orderStatus
        return order.m_orderId

    def combo_order_amount(self, contract, amount, style=MarketOrder()):
        ''' Place an order

        :param contract: A security object.
        :param amount: The integer amount of shares. Positive means buy, negative means sell.
        :param style:
        :return:
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if amount == 0:
            return -1
        elif amount > 0:
            action = 'BUY'
        else:
            action = 'SELL'

        if isinstance(contract, Contract):
            if len(contract.m_comboLegs) == 0:
                raise TypeError("contract must contains combo legs")
        else:
            raise TypeError("contract must be a contract object")

        # request next valid order ID from IB host; this request will update self.order_id
        self.connection.reqIds(-1)  # note: input param is always ignored;
        sleep(0.05)

        order = Order()
        order.m_orderId = self.order_id
        order.m_client_id = self.client_id
        order.m_action = action
        order.m_totalQuantity = abs(amount)
        order.m_orderType = style.order_type
        if style.limit_price is not None:
            order.m_lmtPrice = style.limit_price
        if style.stop_price is not None:
            order.m_auxPrice = style.stop_price

        order.m_overridePercentageConstraints = True  # override TWS order size constraints
        '''
        # Advanced configuration. Not tested yet.
        if style.is_combo_order:
            if style.non_guaranteed:
                tag = TagValue()
                tag.m_tag = "NonGuaranteed"
                tag.m_value = "1"
                order.m_smartComboRoutingParams = [tag]
        '''
        self.connection.placeOrder(self.order_id, contract, order)
        return self.order_id

    def order_value(self, contract, value, style):
        ''' Reserve for future implementation

        :param contract:
        :param value:
        :param style:
        :return:
        '''
        pass

    def order_target(self, contract, amount, style):
        ''' Places an order to adjust a position to a target number of shares.

        :param contract:
        :param value:
        :param style:
        :return:
        '''
        pass

    def order_target_value(self, contract, amount, style):
        ''' Places an order to adjust a position to a target value.

        :param contract:
        :param value:
        :param style:
        :return:
        '''
        pass

    def modify_order(self, order_id, contract, amount, style=MarketOrder()):
        ''' Change amount or order type (including limited price for limtied orders)
            for a existing order specified by order_id
        
        :param order_id: a existing order's order_id
        :param contract: A IB Contract object. supposed to be the same with the order-to-be-modified.
        :param amount: The integer amount of shares. Positive means buy, negative means sell.
        :param style: market order or limited order
        :return: the existing order's order_id (same as the input)
        '''

        if amount == 0:
            return -1
        elif amount > 0:
            action = 'BUY'
        else:
            action = 'SELL'

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if not isinstance(contract, Contract):
            raise TypeError("contract must be a contract object")

        order = Order()
        order.m_orderId = order_id
        order.m_client_id = self.client_id
        order.m_action = action
        order.m_totalQuantity = abs(amount)
        order.m_orderType = style.order_type
        if style.limit_price is not None:
            order.m_lmtPrice = style.limit_price
        if style.stop_price is not None:
            order.m_auxPrice = style.stop_price
        order.m_overridePercentageConstraints = True  # override TWS order size constraints

        # place order
        self.connection.placeOrder(self.order_id, contract, order)
        # TODO: wait for returns from orderStatus
        return self.order_id

    def cancel_order(self, order):
        ''' Attempts to cancel the specified order. Cancel is attempted asynchronously.

        :param order: Can be the order_id as a string or the order object.
        :return: None
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(order, int):
            order_id = order
        elif isinstance(order, Order):
            order_id = order.m_orderId
        else:
            raise TypeError("order must be a order_id (int) or order object")
        self.connection.cancelOrder(order_id)

    def get_open_orders(self):
        ''' Attempts to get all open orders.

        :param
        :return: None
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if 'reqOpenOrders' not in self.ipc_msg_dict:
            request = RequestDetails('reqOpenOrders', '', '')
            response = ResponseDetails()
            self.ipc_msg_dict['reqOpenOrders'] = (request, response)
        else:
            response = self.ipc_msg_dict['reqOpenOrders'][1]

        # self.connection.reqOpenOrders()
        # self.reqAutoOpenOrders(True)
        self.connection.reqAllOpenOrders()

        max_wait_time = 3.
        self.get_order_event.wait(max_wait_time)
        if self.get_order_event.is_set():
            # snapshot = copy(response.tick_snapshot)
            # self.ipc_msg_dict.pop(self.tickerId)
            self.get_order_event.clear()
        else:
            # self.ipc_msg_dict.pop(self.tickerId)
            raise RuntimeError('get_open_orders is timeout.')

        return

    #
    # Account Info Methods
    #
    def enable_account_info_update(self):
        ''' Turn on auto account update, meaning IB socket host will push account info to IB socket client.
                updateAccountTime()
                updateAccountValue()
                updatePortfolio()
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        # TODO: check self.IB_acct_id before using it
        # request IB host (e.g. TWS) push account info to IB client (socket client)
        self.connection.reqAccountUpdates(True, self.account.account_id)
        return

    def disable_account_info_update(self):
        ''' Turn off auto account update, meaning IB socket host will stop pushing account info
         to IB socket client.
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        # TODO: check self.IB_acct_id before using it
        # stop IB host (e.g. TWS) to push account info to IB client (socket client)
        self.connection.reqAccountUpdates(False, self.account.account_id)
        return

    #
    # Fundamental Data Methods
    #
    def get_financial_statements(self, symbol, max_wait_time=20):
        ''' Get a company's financial statements

        :param:
            symbol: stock symbol string, e.g. 'IBM'; or a IB contract object
        :return:
            a string of financial statements
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData', 'ReportsFinStatements',
                                 contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        self.connection.reqFundamentalData(__id, contract,
                                           'ReportsFinStatements')

        response.event.wait(max_wait_time)
        raw_xml = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # covert from xml to dest. format
                raw_xml = copy(response.fundamental_data)
            else:
                pass  # raise RuntimeError('get_financial_statements: reqFundamentalData got error. Security=%s Reason:%s' % (symbol, response.error_msg))
        else:
            # Timeout
            pass  # ('get_financial_statements: reqFundamentalData is timeout. Security=%s' % symbol)

        status = response.status
        self.ipc_msg_dict.pop(__id)
        return status, raw_xml

    def get_company_ownership(self, symbol, max_wait_time=60.0 * 5):
        ''' Get a company's ownership report

        :param:
            symbol: stock symbol string, e.g. 'IBM'
            max_wait_time: max number of seconds to wait before raise timeout
        :return:
            a string of ownership report
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            # For US stock only
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData', 'ReportsOwnership',
                                 contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        self.connection.reqFundamentalData(__id, contract, 'ReportsOwnership')

        response.event.wait(max_wait_time)
        report = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # covert from xml to dest. format
                report = parse_ownership_report(response.fundamental_data)
            else:
                pass  # ('get_company_ownership: reqFundamentalData got error. Security=%s Reason:%s' % (symbol, response.error_msg))
        else:
            pass  # ('get_company_ownership: reqFundamentalData is timeout. Security=%s' % symbol)

        status = response.status
        self.ipc_msg_dict.pop(__id)
        return status, report

    def get_analyst_estimates(self, symbol, max_wait_time=20):
        ''' Get analyst estimates report for a company

        :param:
            symbol: stock symbol string, e.g. 'IBM'; or a IB contract object
        :return:
            a string of financial statements
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData',
                                 'RESC-Analyst Estimates', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        self.connection.reqFundamentalData(__id, contract, 'RESC')

        response.event.wait(max_wait_time)
        report = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # covert from xml to dest. format
                report = parse_analyst_estimates(response.fundamental_data)
            else:
                pass  # ('get_analyst_estimates: reqFundamentalData got error. Security=%s Reason:%s' % (symbol, response.error_msg))
        else:
            pass  # ('get_analyst_estimates: reqFundamentalData is timeout. Security=%s' % symbol)

        status = response.status
        self.ipc_msg_dict.pop(__id)
        return status, report

    def get_company_overview(self, symbol, max_wait_time=10):
        ''' Get company overview infomration

        :param:
            symbol: stock symbol string, e.g. 'IBM'; or a IB contract object
        :return:
            a string of financial statements
        '''
        # ReportsFinSummary	Financial summary

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData',
                                 'ReportSnapshot-Company overview', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # ReportSnapshot	Company's financial overview
        self.connection.reqFundamentalData(__id, contract, 'ReportSnapshot')

        response.event.wait(max_wait_time)
        report = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # TODO: covert from xml to dest. format
                report = response.fundamental_data
            else:
                pass  # ('get_analyst_estimates: reqFundamentalData got error. Security=%s Reason:%s' % (symbol, response.error_msg))
        else:
            pass  # ('get_analyst_estimates: reqFundamentalData is timeout. Security=%s' % symbol)

        status = response.status
        self.ipc_msg_dict.pop(__id)
        return status, report

    def get_financial_summary(self, symbol, max_wait_time=10):
        ''' Get company finanical summary information, such as revenue history, net profit, and dividends history.

        :param:
            symbol: stock symbol string, e.g. 'IBM'; or a IB contract object
        :return:
            a string of financial statements
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData',
                                 'ReportsFinSummary-Financial summary',
                                 contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        self.connection.reqFundamentalData(__id, contract, 'ReportsFinSummary')

        response.event.wait(max_wait_time)
        report = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # TODO: covert from xml to dest. format
                report = response.fundamental_data
            else:
                pass
        else:
            pass

        status = response.status
        self.ipc_msg_dict.pop(__id)
        return status, report

    def get_financial_ratios(self, symbol, max_wait_time=5):
        ''' Get analyst estimates report for a company

        :param:
            symbol: stock symbol string, e.g. 'IBM'
        :return:
            a string of financial statements
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()

        request = RequestDetails('reqFundamentalData',
                                 'RESC-Analyst Estimates', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # 258 - financial ratios
        '''
            TTMNPMGN=16.1298;NLOW=80.6;TTMPRCFPS=6.26675;TTMGROSMGN=60.76731;TTMCFSHR=15.004
            46;QCURRATIO=1.42071;TTMREV=259842;TTMINVTURN=5.28024;TTMOPMGN=14.22711;TTMPR2RE
            V=1.39703;AEPSNORM=8.55;TTMNIPEREM=144524.1;EPSCHNGYR=8.47727;TTMPRFCFPS=62.4260
            6;TTMRECTURN=19.99938;TTMPTMGN=17.88125;QCSHPS=40.50882;TTMFCF=5815;
            LATESTADATE=2016-12-31;APTMGNPCT=17.88125;AEBTNORM=46463;TTMNIAC=33008;NetDebt_I=152080;
            PRYTDPCTR=-1.55563;TTMEBITD=53326;AFEEPSNTM=0;PR2TANBK=5.01599;EPSTRENDGR=-
            15.53209;QTOTD2EQ=72.60778;TTMFCFSHR=1.50625;QBVPS=110.0867;NPRICE=94.1;YLD5YAVG
            =3.88751;REVTRENDGR=51.11774;TTMEPSXCLX=8.54981;QTANBVPS=18.75999;PRICE2BK=0.854
            78;MKTCAP=363007.5;TTMPAYRAT=31.32574;TTMINTCOV=-99999.99;TTMDIVSHR=2.585;TTMREVCHG=55.81794;
            TTMROAPCT=4.09615;TTMROEPCT=7.73685;
            TTMREVPERE=896006.9;APENORM=11.00585;TTMROIPCT=5.51924;REVCHNGYR=-
            6.66885;CURRENCY=HKD;DIVGRPCT=-8.33887;TTMEPSCHG=-32.80548;PEEXCLXOR=11.00609;QQUICKRATI=1.30087;
            TTMREVPS=67.30638;BETA=0.90979;TTMEBT=46463;ADIV5YAVG=3.1048;ANIACNORM=33008;QLTD2EQ=55.46377;NHIG=103.9
        '''
        report = None
        self.connection.reqMktData(__id, contract, "258", False)
        response.event.wait(max_wait_time)
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # TODO: convert the format to a table alike
                report = response.tick_str

        return report

    def get_dividends_info(self, symbol, max_wait_time=5):
        ''' Get analyst estimates report for a company

        :param:
            symbol: stock symbol string, e.g. 'IBM'
        :return:
            a string of financial statements
        '''
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if isinstance(symbol, Contract):
            contract = symbol
        elif isinstance(symbol, str):
            contract = new_stock_contract(symbol)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        __id = self.__get_new_request_id()
        request = RequestDetails('reqFundamentalData',
                                 'RESC-Analyst Estimates', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # IB Dividends ("456")
        #
        # This tick type provides four different comma-separated elements:
        # The sum of dividends for the past 12 months (0.83 in the example below).
        # The sum of dividends for the next 12 months (0.92 from the example below).
        # The next dividend date (20130219 in the example below).
        # The next single dividend amount (0.23 from the example below).
        # Example: 0.83,0.92,20130219,0.23
        self.connection.reqMktData(__id, contract, "456", False)
        result = None
        response.event.wait(max_wait_time)
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                # TODO: convert the format
                result = set(response.tick_str.split(','))

        self.ipc_msg_dict.pop(__id)

        return result

    def get_contract_details(self, contract, max_wait_time=5):
        """ Get contract details for a specified contract
        Args:
            contract: a legal IBPY Contract object or a string for U.S. stock only
        Returns:
            status: a reference to the tick data dictionary which will be updated with latest quote.
            contract_details: a contractDetails instance
        """
        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        __id = self.__get_new_request_id()
        request = RequestDetails('reqContractDetails', '', contract)
        response = ResponseDetails()
        self.ipc_msg_dict[__id] = (request, response)

        # False - indicating request live quotes instead of a snapshot
        self.connection.reqContractDetails(__id, contract)

        response.event.wait(max_wait_time)
        contract_details = None
        if response.event.is_set():
            if response.status == ResponseDetails.STATUS_FINISHED:
                if len(response.contract_list) > 0:
                    contract_details = copy(response.contract_list[0])
            else:
                pass
        else:
            pass

        status = response.status
        self.ipc_msg_dict.pop(__id)

        return status, contract_details

    def get_full_contract(self, contract):
        """ Subscribe tick data for a specified contract
        Args:
            contract: a legal IBPY Contract object or a string for U.S. stock only
        Returns:
            tickerId:  the ID of this request. this ID could be used to cancel request later.
            tick_data: a reference to the tick data dictionary which will be updated with latest quote.
        """

        status, contract_details = self.get_contract_details(contract)
        new_contract = copy(contract_details.m_summary)

        return status, new_contract

    def request_market_depth(self, contract, num_rows=10):
        """

        :param contract:
        :param num_rows:
        :return:
        """
        if isinstance(contract, Contract):
            pass
        elif isinstance(contract, str):
            contract = new_stock_contract(contract)
        else:
            raise TypeError(
                "contract must be a contract object or string (for U.S. stocks only)."
            )

        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        __id = self.__get_new_request_id()
        self.market_depth_buffer[__id] = MarketDepth(__id)
        self.connection.reqMktDepth(__id, contract, num_rows)

        return __id, self.market_depth_buffer[__id]

    def cancel_market_depth(self, request_id):
        """

        :param contract:
        :param num_rows:
        :return:
        """
        if not self.connected:
            raise RuntimeError('IB client is not connected to TWS')

        if request_id in self.market_depth_buffer.keys():
            self.connection.cancelMktDepth(request_id)
            data = self.market_depth_buffer.pop(request_id)
            return data
        else:
            raise ValueError("request_id is not found: %s" % request_id)