Merge pull request #3146 from freqtrade/buy_order_timeout_logging

Improve handling for buy order cancels

freqtrade/freqtradebot.py

@@ -20,6 +20,7 @@ from freqtrade.data.dataprovider import DataProvider
 from freqtrade.edge import Edge
 from freqtrade.exceptions import DependencyException, InvalidOrderException
 from freqtrade.exchange import timeframe_to_minutes, timeframe_to_next_date
+from freqtrade.misc import safe_value_fallback
 from freqtrade.pairlist.pairlistmanager import PairListManager
 from freqtrade.persistence import Trade
 from freqtrade.resolvers import ExchangeResolver, StrategyResolver
@@ -889,18 +890,24 @@ class FreqtradeBot:
         """
         if order['status'] != 'canceled':
             reason = "cancelled due to timeout"
-            corder = self.exchange.cancel_order(trade.open_order_id, trade.pair)
-            # Some exchanges don't return a dict here.
-            if not isinstance(corder, dict):
+            try:
+                corder = self.exchange.cancel_order(trade.open_order_id, trade.pair)
+                # Some exchanges don't return a dict here.
+                if not isinstance(corder, dict):
+                    corder = {}
+                logger.info('Buy order %s for %s.', reason, trade)
+            except InvalidOrderException:
                 corder = {}
-            logger.info('Buy order %s for %s.', reason, trade)
+                logger.exception(
+                    f"Could not cancel buy order {trade.open_order_id} for pair {trade.pair}")
         else:
             # Order was cancelled already, so we can reuse the existing dict
             corder = order
             reason = "cancelled on exchange"
             logger.info('Buy order %s for %s.', reason, trade)
 
-        if corder.get('remaining', order['remaining']) == order['amount']:
+        if safe_value_fallback(corder, order, 'remaining', 'remaining') == order['amount']:
+            logger.info('Buy order fully cancelled. Removing %s from database.', trade)
             # if trade is not partially completed, just delete the trade
             Trade.session.delete(trade)
             Trade.session.flush()
@@ -911,7 +918,8 @@ class FreqtradeBot:
         # cancel_order may not contain the full order dict, so we need to fallback
         # to the order dict aquired before cancelling.
         # we need to fall back to the values from order if corder does not contain these keys.
-        trade.amount = order['amount'] - corder.get('remaining', order['remaining'])
+        trade.amount = order['amount'] - safe_value_fallback(corder, order,
+                                                             'remaining', 'remaining')
         trade.stake_amount = trade.amount * trade.open_rate
         self.update_trade_state(trade, corder if 'fee' in corder else order, trade.amount)
 

freqtrade/misc.py

@@ -134,6 +134,21 @@ def round_dict(d, n):
     return {k: (round(v, n) if isinstance(v, float) else v) for k, v in d.items()}
 
 
+def safe_value_fallback(dict1: dict, dict2: dict, key1: str, key2: str, default_value=None):
+    """
+    Search a value in dict1, return this if it's not None.
+    Fall back to dict2 - return key2 from dict2 if it's not None.
+    Else falls back to None.
+
+    """
+    if key1 in dict1 and dict1[key1] is not None:
+        return dict1[key1]
+    else:
+        if key2 in dict2 and dict2[key2] is not None:
+            return dict2[key2]
+    return default_value
+
+
 def plural(num: float, singular: str, plural: str = None) -> str:
     return singular if (num == 1 or num == -1) else plural or singular + 's'