Ejemplo n.º 1
0
class FreqtradeBot(object):
    """
    Freqtrade is the main class of the bot.
    This is from here the bot start its logic.
    """
    def __init__(self, config: Dict[str, Any]) -> None:
        """
        Init all variables and object the bot need to work
        :param config: configuration dict, you can use the Configuration.get_config()
        method to get the config dict.
        """

        logger.info(
            'Starting freqtrade %s',
            __version__,
        )

        # Init bot states
        self.state = State.STOPPED

        # Init objects
        self.config = config
        self.strategy: IStrategy = StrategyResolver(self.config).strategy

        self.rpc: RPCManager = RPCManager(self)
        self.persistence = None
        self.exchange = Exchange(self.config)
        self.wallets = Wallets(self.exchange)
        pairlistname = self.config.get('pairlist',
                                       {}).get('method', 'StaticPairList')
        self.pairlists = PairListResolver(pairlistname, self,
                                          self.config).pairlist

        # Initializing Edge only if enabled
        self.edge = Edge(self.config, self.exchange, self.strategy) if \
            self.config.get('edge', {}).get('enabled', False) else None

        self.active_pair_whitelist: List[str] = self.config['exchange'][
            'pair_whitelist']
        self._init_modules()

    def _init_modules(self) -> None:
        """
        Initializes all modules and updates the config
        :return: None
        """
        # Initialize all modules

        persistence.init(self.config)

        # Set initial application state
        initial_state = self.config.get('initial_state')

        if initial_state:
            self.state = State[initial_state.upper()]
        else:
            self.state = State.STOPPED

    def cleanup(self) -> None:
        """
        Cleanup pending resources on an already stopped bot
        :return: None
        """
        logger.info('Cleaning up modules ...')
        self.rpc.cleanup()
        persistence.cleanup()

    def worker(self, old_state: State = None) -> State:
        """
        Trading routine that must be run at each loop
        :param old_state: the previous service state from the previous call
        :return: current service state
        """
        # Log state transition
        state = self.state
        if state != old_state:
            self.rpc.send_msg({
                'type': RPCMessageType.STATUS_NOTIFICATION,
                'status': f'{state.name.lower()}'
            })
            logger.info('Changing state to: %s', state.name)
            if state == State.RUNNING:
                self.rpc.startup_messages(self.config, self.pairlists)

        if state == State.STOPPED:
            time.sleep(1)
        elif state == State.RUNNING:
            min_secs = self.config.get('internals',
                                       {}).get('process_throttle_secs',
                                               constants.PROCESS_THROTTLE_SECS)

            self._throttle(func=self._process, min_secs=min_secs)
        return state

    def _throttle(self, func: Callable[..., Any], min_secs: float, *args,
                  **kwargs) -> Any:
        """
        Throttles the given callable that it
        takes at least `min_secs` to finish execution.
        :param func: Any callable
        :param min_secs: minimum execution time in seconds
        :return: Any
        """
        start = time.time()
        result = func(*args, **kwargs)
        end = time.time()
        duration = max(min_secs - (end - start), 0.0)
        logger.debug('Throttling %s for %.2f seconds', func.__name__, duration)
        time.sleep(duration)
        return result

    def _process(self) -> bool:
        """
        Queries the persistence layer for open trades and handles them,
        otherwise a new trade is created.
        :return: True if one or more trades has been created or closed, False otherwise
        """
        state_changed = False
        try:
            # Refresh whitelist
            self.pairlists.refresh_pairlist()
            self.active_pair_whitelist = self.pairlists.whitelist

            # Calculating Edge positiong
            # Should be called before refresh_tickers
            # Otherwise it will override cached klines in exchange
            # with delta value (klines only from last refresh_pairs)
            if self.edge:
                self.edge.calculate()
                self.active_pair_whitelist = self.edge.adjust(
                    self.active_pair_whitelist)

            # Query trades from persistence layer
            trades = Trade.query.filter(Trade.is_open.is_(True)).all()

            # Extend active-pair whitelist with pairs from open trades
            # ensures that tickers are downloaded for open trades
            self.active_pair_whitelist.extend([
                trade.pair for trade in trades
                if trade.pair not in self.active_pair_whitelist
            ])

            # Refreshing candles
            self.exchange.refresh_tickers(self.active_pair_whitelist,
                                          self.strategy.ticker_interval)

            # First process current opened trades
            for trade in trades:
                state_changed |= self.process_maybe_execute_sell(trade)

            # Then looking for buy opportunities
            if len(trades) < self.config['max_open_trades']:
                state_changed = self.process_maybe_execute_buy()

            if 'unfilledtimeout' in self.config:
                # Check and handle any timed out open orders
                self.check_handle_timedout()
                Trade.session.flush()

        except TemporaryError as error:
            logger.warning('%s, retrying in 30 seconds...', error)
            time.sleep(constants.RETRY_TIMEOUT)
        except OperationalException:
            tb = traceback.format_exc()
            hint = 'Issue `/start` if you think it is safe to restart.'
            self.rpc.send_msg({
                'type':
                RPCMessageType.STATUS_NOTIFICATION,
                'status':
                f'OperationalException:\n```\n{tb}```{hint}'
            })
            logger.exception('OperationalException. Stopping trader ...')
            self.state = State.STOPPED
        return state_changed

    def get_target_bid(self, pair: str, ticker: Dict[str, float]) -> float:
        """
        Calculates bid target between current ask price and last price
        :param ticker: Ticker to use for getting Ask and Last Price
        :return: float: Price
        """
        if ticker['ask'] < ticker['last']:
            ticker_rate = ticker['ask']
        else:
            balance = self.config['bid_strategy']['ask_last_balance']
            ticker_rate = ticker['ask'] + balance * (ticker['last'] -
                                                     ticker['ask'])

        used_rate = ticker_rate
        config_bid_strategy = self.config.get('bid_strategy', {})
        if 'use_order_book' in config_bid_strategy and\
                config_bid_strategy.get('use_order_book', False):
            logger.info('Getting price from order book')
            order_book_top = config_bid_strategy.get('order_book_top', 1)
            order_book = self.exchange.get_order_book(pair, order_book_top)
            logger.debug('order_book %s', order_book)
            # top 1 = index 0
            order_book_rate = order_book['bids'][order_book_top - 1][0]
            # if ticker has lower rate, then use ticker ( usefull if down trending )
            logger.info('...top %s order book buy rate %0.8f', order_book_top,
                        order_book_rate)
            if ticker_rate < order_book_rate:
                logger.info('...using ticker rate instead %0.8f', ticker_rate)
                used_rate = ticker_rate
            else:
                used_rate = order_book_rate
        else:
            logger.info('Using Last Ask / Last Price')
            used_rate = ticker_rate

        return used_rate

    def _get_trade_stake_amount(self, pair) -> Optional[float]:
        """
        Check if stake amount can be fulfilled with the available balance
        for the stake currency
        :return: float: Stake Amount
        """
        if self.edge:
            return self.edge.stake_amount(
                pair, self.wallets.get_free(self.config['stake_currency']),
                self.wallets.get_total(self.config['stake_currency']),
                Trade.total_open_trades_stakes())
        else:
            stake_amount = self.config['stake_amount']

        avaliable_amount = self.wallets.get_free(self.config['stake_currency'])

        if stake_amount == constants.UNLIMITED_STAKE_AMOUNT:
            open_trades = len(
                Trade.query.filter(Trade.is_open.is_(True)).all())
            if open_trades >= self.config['max_open_trades']:
                logger.warning(
                    'Can\'t open a new trade: max number of trades is reached')
                return None
            return avaliable_amount / (self.config['max_open_trades'] -
                                       open_trades)

        # Check if stake_amount is fulfilled
        if avaliable_amount < stake_amount:
            raise DependencyException(
                'Available balance(%f %s) is lower than stake amount(%f %s)' %
                (avaliable_amount, self.config['stake_currency'], stake_amount,
                 self.config['stake_currency']))

        return stake_amount

    def _get_min_pair_stake_amount(self, pair: str,
                                   price: float) -> Optional[float]:
        markets = self.exchange.get_markets()
        markets = [m for m in markets if m['symbol'] == pair]
        if not markets:
            raise ValueError(
                f'Can\'t get market information for symbol {pair}')

        market = markets[0]

        if 'limits' not in market:
            return None

        min_stake_amounts = []
        limits = market['limits']
        if ('cost' in limits and 'min' in limits['cost']
                and limits['cost']['min'] is not None):
            min_stake_amounts.append(limits['cost']['min'])

        if ('amount' in limits and 'min' in limits['amount']
                and limits['amount']['min'] is not None):
            min_stake_amounts.append(limits['amount']['min'] * price)

        if not min_stake_amounts:
            return None

        amount_reserve_percent = 1 - 0.05  # reserve 5% + stoploss
        if self.strategy.stoploss is not None:
            amount_reserve_percent += self.strategy.stoploss
        # it should not be more than 50%
        amount_reserve_percent = max(amount_reserve_percent, 0.5)
        return min(min_stake_amounts) / amount_reserve_percent

    def create_trade(self) -> bool:
        """
        Checks the implemented trading indicator(s) for a randomly picked pair,
        if one pair triggers the buy_signal a new trade record gets created
        :return: True if a trade object has been created and persisted, False otherwise
        """
        interval = self.strategy.ticker_interval
        whitelist = copy.deepcopy(self.active_pair_whitelist)

        # Remove currently opened and latest pairs from whitelist
        for trade in Trade.query.filter(Trade.is_open.is_(True)).all():
            if trade.pair in whitelist:
                whitelist.remove(trade.pair)
                logger.debug('Ignoring %s in pair whitelist', trade.pair)

        if not whitelist:
            raise DependencyException('No currency pairs in whitelist')

        # running get_signal on historical data fetched
        for _pair in whitelist:
            (buy, sell) = self.strategy.get_signal(_pair, interval,
                                                   self.exchange.klines(_pair))
            if buy and not sell:
                stake_amount = self._get_trade_stake_amount(_pair)
                if not stake_amount:
                    return False

                logger.info(
                    'Buy signal found: about create a new trade with stake_amount: %f ...',
                    stake_amount)

                bidstrat_check_depth_of_market = self.config.get('bid_strategy', {}).\
                    get('check_depth_of_market', {})
                if (bidstrat_check_depth_of_market.get('enabled', False)) and\
                        (bidstrat_check_depth_of_market.get('bids_to_ask_delta', 0) > 0):
                    if self._check_depth_of_market_buy(
                            _pair, bidstrat_check_depth_of_market):
                        return self.execute_buy(_pair, stake_amount)
                    else:
                        return False
                return self.execute_buy(_pair, stake_amount)

        return False

    def _check_depth_of_market_buy(self, pair: str, conf: Dict) -> bool:
        """
        Checks depth of market before executing a buy
        """
        conf_bids_to_ask_delta = conf.get('bids_to_ask_delta', 0)
        logger.info('checking depth of market for %s', pair)
        order_book = self.exchange.get_order_book(pair, 1000)
        order_book_data_frame = order_book_to_dataframe(
            order_book['bids'], order_book['asks'])
        order_book_bids = order_book_data_frame['b_size'].sum()
        order_book_asks = order_book_data_frame['a_size'].sum()
        bids_ask_delta = order_book_bids / order_book_asks
        logger.info('bids: %s, asks: %s, delta: %s', order_book_bids,
                    order_book_asks, bids_ask_delta)
        if bids_ask_delta >= conf_bids_to_ask_delta:
            return True
        return False

    def execute_buy(self,
                    pair: str,
                    stake_amount: float,
                    price: Optional[float] = None) -> bool:
        """
        Executes a limit buy for the given pair
        :param pair: pair for which we want to create a LIMIT_BUY
        :return: None
        """
        pair_s = pair.replace('_', '/')
        pair_url = self.exchange.get_pair_detail_url(pair)
        stake_currency = self.config['stake_currency']
        fiat_currency = self.config.get('fiat_display_currency', None)
        time_in_force = self.strategy.order_time_in_force['buy']

        if price:
            buy_limit_requested = price
        else:
            # Calculate amount
            buy_limit_requested = self.get_target_bid(
                pair, self.exchange.get_ticker(pair))

        min_stake_amount = self._get_min_pair_stake_amount(
            pair_s, buy_limit_requested)
        if min_stake_amount is not None and min_stake_amount > stake_amount:
            logger.warning(
                f'Can\'t open a new trade for {pair_s}: stake amount'
                f' is too small ({stake_amount} < {min_stake_amount})')
            return False

        amount = stake_amount / buy_limit_requested

        order = self.exchange.buy(pair=pair,
                                  ordertype=self.strategy.order_types['buy'],
                                  amount=amount,
                                  rate=buy_limit_requested,
                                  time_in_force=time_in_force)
        order_id = order['id']
        order_status = order.get('status', None)

        # we assume the order is executed at the price requested
        buy_limit_filled_price = buy_limit_requested

        if order_status == 'expired' or order_status == 'rejected':
            order_type = self.strategy.order_types['buy']
            order_tif = self.strategy.order_time_in_force['buy']

            # return false if the order is not filled
            if float(order['filled']) == 0:
                logger.warning(
                    'Buy %s order with time in force %s for %s is %s by %s.'
                    ' zero amount is fulfilled.', order_tif, order_type,
                    pair_s, order_status, self.exchange.name)
                return False
            else:
                # the order is partially fulfilled
                # in case of IOC orders we can check immediately
                # if the order is fulfilled fully or partially
                logger.warning(
                    'Buy %s order with time in force %s for %s is %s by %s.'
                    ' %s amount fulfilled out of %s (%s remaining which is canceled).',
                    order_tif, order_type, pair_s, order_status,
                    self.exchange.name, order['filled'], order['amount'],
                    order['remaining'])
                stake_amount = order['cost']
                amount = order['amount']
                buy_limit_filled_price = order['price']
                order_id = None

        # in case of FOK the order may be filled immediately and fully
        elif order_status == 'closed':
            stake_amount = order['cost']
            amount = order['amount']
            buy_limit_filled_price = order['price']
            order_id = None

        self.rpc.send_msg({
            'type': RPCMessageType.BUY_NOTIFICATION,
            'exchange': self.exchange.name.capitalize(),
            'pair': pair_s,
            'market_url': pair_url,
            'limit': buy_limit_filled_price,
            'stake_amount': stake_amount,
            'stake_currency': stake_currency,
            'fiat_currency': fiat_currency
        })

        # Fee is applied twice because we make a LIMIT_BUY and LIMIT_SELL
        fee = self.exchange.get_fee(symbol=pair, taker_or_maker='maker')
        trade = Trade(pair=pair,
                      stake_amount=stake_amount,
                      amount=amount,
                      fee_open=fee,
                      fee_close=fee,
                      open_rate=buy_limit_filled_price,
                      open_rate_requested=buy_limit_requested,
                      open_date=datetime.utcnow(),
                      exchange=self.exchange.id,
                      open_order_id=order_id,
                      strategy=self.strategy.get_strategy_name(),
                      ticker_interval=constants.TICKER_INTERVAL_MINUTES[
                          self.config['ticker_interval']])

        Trade.session.add(trade)
        Trade.session.flush()

        # Updating wallets
        self.wallets.update()

        return True

    def process_maybe_execute_buy(self) -> bool:
        """
        Tries to execute a buy trade in a safe way
        :return: True if executed
        """
        try:
            # Create entity and execute trade
            if self.create_trade():
                return True

            logger.info(
                'Found no buy signals for whitelisted currencies. Trying again..'
            )
            return False
        except DependencyException as exception:
            logger.warning('Unable to create trade: %s', exception)
            return False

    def process_maybe_execute_sell(self, trade: Trade) -> bool:
        """
        Tries to execute a sell trade
        :return: True if executed
        """
        try:
            # Get order details for actual price per unit
            if trade.open_order_id:
                # Update trade with order values
                logger.info('Found open order for %s', trade)
                order = self.exchange.get_order(trade.open_order_id,
                                                trade.pair)
                # Try update amount (binance-fix)
                try:
                    new_amount = self.get_real_amount(trade, order)
                    if order['amount'] != new_amount:
                        order['amount'] = new_amount
                        # Fee was applied, so set to 0
                        trade.fee_open = 0

                except OperationalException as exception:
                    logger.warning("could not update trade amount: %s",
                                   exception)

                trade.update(order)

            if self.strategy.order_types.get(
                    'stoploss_on_exchange') and trade.is_open:
                result = self.handle_stoploss_on_exchange(trade)
                if result:
                    self.wallets.update()
                    return result

            if trade.is_open and trade.open_order_id is None:
                # Check if we can sell our current pair
                result = self.handle_trade(trade)

                # Updating wallets if any trade occured
                if result:
                    self.wallets.update()

                return result

        except DependencyException as exception:
            logger.warning('Unable to sell trade: %s', exception)
        return False

    def get_real_amount(self, trade: Trade, order: Dict) -> float:
        """
        Get real amount for the trade
        Necessary for self.exchanges which charge fees in base currency (e.g. binance)
        """
        order_amount = order['amount']
        # Only run for closed orders
        if trade.fee_open == 0 or order['status'] == 'open':
            return order_amount

        # use fee from order-dict if possible
        if 'fee' in order and order['fee'] and (order['fee'].keys() >=
                                                {'currency', 'cost'}):
            if trade.pair.startswith(order['fee']['currency']):
                new_amount = order_amount - order['fee']['cost']
                logger.info(
                    "Applying fee on amount for %s (from %s to %s) from Order",
                    trade, order['amount'], new_amount)
                return new_amount

        # Fallback to Trades
        trades = self.exchange.get_trades_for_order(trade.open_order_id,
                                                    trade.pair,
                                                    trade.open_date)

        if len(trades) == 0:
            logger.info(
                "Applying fee on amount for %s failed: myTrade-Dict empty found",
                trade)
            return order_amount
        amount = 0
        fee_abs = 0
        for exectrade in trades:
            amount += exectrade['amount']
            if "fee" in exectrade and (exectrade['fee'].keys() >=
                                       {'currency', 'cost'}):
                # only applies if fee is in quote currency!
                if trade.pair.startswith(exectrade['fee']['currency']):
                    fee_abs += exectrade['fee']['cost']

        if amount != order_amount:
            logger.warning(
                f"amount {amount} does not match amount {trade.amount}")
            raise OperationalException("Half bought? Amounts don't match")
        real_amount = amount - fee_abs
        if fee_abs != 0:
            logger.info(f"""Applying fee on amount for {trade} \
(from {order_amount} to {real_amount}) from Trades""")
        return real_amount

    def handle_trade(self, trade: Trade) -> bool:
        """
        Sells the current pair if the threshold is reached and updates the trade record.
        :return: True if trade has been sold, False otherwise
        """
        if not trade.is_open:
            raise ValueError(f'attempt to handle closed trade: {trade}')

        logger.debug('Handling %s ...', trade)
        sell_rate = self.exchange.get_ticker(trade.pair)['bid']

        (buy, sell) = (False, False)
        experimental = self.config.get('experimental', {})
        if experimental.get('use_sell_signal') or experimental.get(
                'ignore_roi_if_buy_signal'):
            (buy,
             sell) = self.strategy.get_signal(trade.pair,
                                              self.strategy.ticker_interval,
                                              self.exchange.klines(trade.pair))

        config_ask_strategy = self.config.get('ask_strategy', {})
        if config_ask_strategy.get('use_order_book', False):
            logger.info('Using order book for selling...')
            # logger.debug('Order book %s',orderBook)
            order_book_min = config_ask_strategy.get('order_book_min', 1)
            order_book_max = config_ask_strategy.get('order_book_max', 1)

            order_book = self.exchange.get_order_book(trade.pair,
                                                      order_book_max)

            for i in range(order_book_min, order_book_max + 1):
                order_book_rate = order_book['asks'][i - 1][0]

                # if orderbook has higher rate (high profit),
                # use orderbook, otherwise just use bids rate
                logger.info('  order book asks top %s: %0.8f', i,
                            order_book_rate)
                if sell_rate < order_book_rate:
                    sell_rate = order_book_rate

                if self.check_sell(trade, sell_rate, buy, sell):
                    return True
                    break
        else:
            logger.debug('checking sell')
            if self.check_sell(trade, sell_rate, buy, sell):
                return True

        logger.debug('Found no sell signal for %s.', trade)
        return False

    def handle_stoploss_on_exchange(self, trade: Trade) -> bool:
        """
        Check if trade is fulfilled in which case the stoploss
        on exchange should be added immediately if stoploss on exchnage
        is enabled.
        """

        result = False

        # If trade is open and the buy order is fulfilled but there is no stoploss,
        # then we add a stoploss on exchange
        if not trade.open_order_id and not trade.stoploss_order_id:
            if self.edge:
                stoploss = self.edge.stoploss(pair=trade.pair)
            else:
                stoploss = self.strategy.stoploss

            stop_price = trade.open_rate * (1 + stoploss)

            # limit price should be less than stop price.
            # 0.98 is arbitrary here.
            limit_price = stop_price * 0.98

            stoploss_order_id = self.exchange.stoploss_limit(
                pair=trade.pair,
                amount=trade.amount,
                stop_price=stop_price,
                rate=limit_price)['id']
            trade.stoploss_order_id = str(stoploss_order_id)

        # Or the trade open and there is already a stoploss on exchange.
        # so we check if it is hit ...
        elif trade.stoploss_order_id:
            logger.debug('Handling stoploss on exchange %s ...', trade)
            order = self.exchange.get_order(trade.stoploss_order_id,
                                            trade.pair)
            if order['status'] == 'closed':
                trade.sell_reason = SellType.STOPLOSS_ON_EXCHANGE.value
                trade.update(order)
                result = True
            else:
                result = False
        return result

    def check_sell(self, trade: Trade, sell_rate: float, buy: bool,
                   sell: bool) -> bool:
        if self.edge:
            stoploss = self.edge.stoploss(trade.pair)
            should_sell = self.strategy.should_sell(trade,
                                                    sell_rate,
                                                    datetime.utcnow(),
                                                    buy,
                                                    sell,
                                                    force_stoploss=stoploss)
        else:
            should_sell = self.strategy.should_sell(trade, sell_rate,
                                                    datetime.utcnow(), buy,
                                                    sell)

        if should_sell.sell_flag:
            self.execute_sell(trade, sell_rate, should_sell.sell_type)
            logger.info('executed sell, reason: %s', should_sell.sell_type)
            return True
        return False

    def check_handle_timedout(self) -> None:
        """
        Check if any orders are timed out and cancel if neccessary
        :param timeoutvalue: Number of minutes until order is considered timed out
        :return: None
        """
        buy_timeout = self.config['unfilledtimeout']['buy']
        sell_timeout = self.config['unfilledtimeout']['sell']
        buy_timeoutthreashold = arrow.utcnow().shift(
            minutes=-buy_timeout).datetime
        sell_timeoutthreashold = arrow.utcnow().shift(
            minutes=-sell_timeout).datetime

        for trade in Trade.query.filter(Trade.open_order_id.isnot(None)).all():
            try:
                # FIXME: Somehow the query above returns results
                # where the open_order_id is in fact None.
                # This is probably because the record got
                # updated via /forcesell in a different thread.
                if not trade.open_order_id:
                    continue
                order = self.exchange.get_order(trade.open_order_id,
                                                trade.pair)
            except (RequestException, DependencyException):
                logger.info('Cannot query order for %s due to %s', trade,
                            traceback.format_exc())
                continue
            ordertime = arrow.get(order['datetime']).datetime

            # Check if trade is still actually open
            if float(order['remaining']) == 0.0:
                self.wallets.update()
                continue

            # Check if trade is still actually open
            if order['status'] == 'open':
                if order['side'] == 'buy' and ordertime < buy_timeoutthreashold:
                    self.handle_timedout_limit_buy(trade, order)
                    self.wallets.update()
                elif order[
                        'side'] == 'sell' and ordertime < sell_timeoutthreashold:
                    self.handle_timedout_limit_sell(trade, order)
                    self.wallets.update()

    # FIX: 20180110, why is cancel.order unconditionally here, whereas
    #                it is conditionally called in the
    #                handle_timedout_limit_sell()?
    def handle_timedout_limit_buy(self, trade: Trade, order: Dict) -> bool:
        """Buy timeout - cancel order
        :return: True if order was fully cancelled
        """
        pair_s = trade.pair.replace('_', '/')
        self.exchange.cancel_order(trade.open_order_id, trade.pair)
        if order['remaining'] == order['amount']:
            # if trade is not partially completed, just delete the trade
            Trade.session.delete(trade)
            Trade.session.flush()
            logger.info('Buy order timeout for %s.', trade)
            self.rpc.send_msg({
                'type':
                RPCMessageType.STATUS_NOTIFICATION,
                'status':
                f'Unfilled buy order for {pair_s} cancelled due to timeout'
            })
            return True

        # if trade is partially complete, edit the stake details for the trade
        # and close the order
        trade.amount = order['amount'] - order['remaining']
        trade.stake_amount = trade.amount * trade.open_rate
        trade.open_order_id = None
        logger.info('Partial buy order timeout for %s.', trade)
        self.rpc.send_msg({
            'type':
            RPCMessageType.STATUS_NOTIFICATION,
            'status':
            f'Remaining buy order for {pair_s} cancelled due to timeout'
        })
        return False

    # FIX: 20180110, should cancel_order() be cond. or unconditionally called?
    def handle_timedout_limit_sell(self, trade: Trade, order: Dict) -> bool:
        """
        Sell timeout - cancel order and update trade
        :return: True if order was fully cancelled
        """
        pair_s = trade.pair.replace('_', '/')
        if order['remaining'] == order['amount']:
            # if trade is not partially completed, just cancel the trade
            self.exchange.cancel_order(trade.open_order_id, trade.pair)
            trade.close_rate = None
            trade.close_profit = None
            trade.close_date = None
            trade.is_open = True
            trade.open_order_id = None
            self.rpc.send_msg({
                'type':
                RPCMessageType.STATUS_NOTIFICATION,
                'status':
                f'Unfilled sell order for {pair_s} cancelled due to timeout'
            })
            logger.info('Sell order timeout for %s.', trade)
            return True

        # TODO: figure out how to handle partially complete sell orders
        return False

    def execute_sell(self, trade: Trade, limit: float,
                     sell_reason: SellType) -> None:
        """
        Executes a limit sell for the given trade and limit
        :param trade: Trade instance
        :param limit: limit rate for the sell order
        :param sellreason: Reason the sell was triggered
        :return: None
        """
        sell_type = 'sell'
        if sell_reason in (SellType.STOP_LOSS, SellType.TRAILING_STOP_LOSS):
            sell_type = 'stoploss'

        # if stoploss is on exchange and we are on dry_run mode,
        # we consider the sell price stop price
        if self.config.get('dry_run', False) and sell_type == 'stoploss' \
           and self.strategy.order_types['stoploss_on_exchange']:
            limit = trade.stop_loss

        # First cancelling stoploss on exchange ...
        if self.strategy.order_types.get(
                'stoploss_on_exchange') and trade.stoploss_order_id:
            self.exchange.cancel_order(trade.stoploss_order_id, trade.pair)

        # Execute sell and update trade record
        order_id = self.exchange.sell(
            pair=str(trade.pair),
            ordertype=self.strategy.order_types[sell_type],
            amount=trade.amount,
            rate=limit,
            time_in_force=self.strategy.order_time_in_force['sell'])['id']

        trade.open_order_id = order_id
        trade.close_rate_requested = limit
        trade.sell_reason = sell_reason.value

        profit_trade = trade.calc_profit(rate=limit)
        current_rate = self.exchange.get_ticker(trade.pair)['bid']
        profit_percent = trade.calc_profit_percent(limit)
        pair_url = self.exchange.get_pair_detail_url(trade.pair)
        gain = "profit" if profit_percent > 0 else "loss"

        msg = {
            'type': RPCMessageType.SELL_NOTIFICATION,
            'exchange': trade.exchange.capitalize(),
            'pair': trade.pair,
            'gain': gain,
            'market_url': pair_url,
            'limit': limit,
            'amount': trade.amount,
            'open_rate': trade.open_rate,
            'current_rate': current_rate,
            'profit_amount': profit_trade,
            'profit_percent': profit_percent,
            'sell_reason': sell_reason.value
        }

        # For regular case, when the configuration exists
        if 'stake_currency' in self.config and 'fiat_display_currency' in self.config:
            stake_currency = self.config['stake_currency']
            fiat_currency = self.config['fiat_display_currency']
            msg.update({
                'stake_currency': stake_currency,
                'fiat_currency': fiat_currency,
            })

        # Send the message
        self.rpc.send_msg(msg)
        Trade.session.flush()
Ejemplo n.º 2
0
def plot_analyzed_dataframe(args: Namespace) -> None:
    """
    Calls analyze() and plots the returned dataframe
    :return: None
    """
    global _CONF

    # Load the configuration
    _CONF.update(setup_configuration(args))

    print(_CONF)
    # Set the pair to audit
    pair = args.pair

    if pair is None:
        logger.critical('Parameter --pair mandatory;. E.g --pair ETH/BTC')
        exit()

    if '/' not in pair:
        logger.critical('--pair format must be XXX/YYY')
        exit()

    # Set timerange to use
    timerange = Arguments.parse_timerange(args.timerange)

    # Load the strategy
    try:
        strategy = StrategyResolver(_CONF).strategy
        exchange = Exchange(_CONF)
    except AttributeError:
        logger.critical(
            'Impossible to load the strategy. Please check the file "user_data/strategies/%s.py"',
            args.strategy)
        exit()

    # Set the ticker to use
    tick_interval = strategy.ticker_interval

    # Load pair tickers
    tickers = {}
    if args.live:
        logger.info('Downloading pair.')
        exchange.refresh_tickers([pair], tick_interval)
        tickers[pair] = exchange.klines(pair)
    else:
        tickers = history.load_data(datadir=Path(_CONF.get("datadir")),
                                    pairs=[pair],
                                    ticker_interval=tick_interval,
                                    refresh_pairs=_CONF.get(
                                        'refresh_pairs', False),
                                    timerange=timerange,
                                    exchange=Exchange(_CONF))

        # No ticker found, or impossible to download
        if tickers == {}:
            exit()

    # Get trades already made from the DB
    trades = load_trades(args, pair, timerange)

    dataframes = strategy.tickerdata_to_dataframe(tickers)

    dataframe = dataframes[pair]
    dataframe = strategy.advise_buy(dataframe, {'pair': pair})
    dataframe = strategy.advise_sell(dataframe, {'pair': pair})

    if len(dataframe.index) > args.plot_limit:
        logger.warning(
            'Ticker contained more than %s candles as defined '
            'with --plot-limit, clipping.', args.plot_limit)
    dataframe = dataframe.tail(args.plot_limit)

    trades = trades.loc[trades['opents'] >= dataframe.iloc[0]['date']]
    fig = generate_graph(pair=pair, trades=trades, data=dataframe, args=args)

    plot(fig, filename=str(Path('user_data').joinpath('freqtrade-plot.html')))