Don't use current rate for closed trades

freqtrade/rpc/api_server/api_schemas.py

@@ -189,7 +189,6 @@ class OpenTradeSchema(TradeSchema):
     stoploss_current_dist_ratio: Optional[float]
     stoploss_entry_dist: Optional[float]
     stoploss_entry_dist_ratio: Optional[float]
-    base_currency: str
     current_profit: float
     current_profit_abs: float
     current_profit_pct: float

freqtrade/rpc/rpc.py

@@ -167,10 +167,13 @@ class RPC:
                 if trade.open_order_id:
                     order = self._freqtrade.exchange.fetch_order(trade.open_order_id, trade.pair)
                 # calculate profit and send message to user
-                try:
-                    current_rate = self._freqtrade.get_sell_rate(trade.pair, False)
-                except (ExchangeError, PricingError):
-                    current_rate = NAN
+                if trade.is_open:
+                    try:
+                        current_rate = self._freqtrade.get_sell_rate(trade.pair, False)
+                    except (ExchangeError, PricingError):
+                        current_rate = NAN
+                else:
+                    current_rate = trade.close_rate
                 current_profit = trade.calc_profit_ratio(current_rate)
                 current_profit_abs = trade.calc_profit(current_rate)
 

tests/rpc/test_rpc_apiserver.py

@@ -773,7 +773,6 @@ def test_api_status(botclient, mocker, ticker, fee, markets):
     assert rc.json()[0] == {
         'amount': 123.0,
         'amount_requested': 123.0,
-        'base_currency': 'BTC',
         'close_date': None,
         'close_timestamp': None,
         'close_profit': None,