Selectively convert quote to base volume in volumepairlist

freqtrade/exchange/exchange.py

@@ -67,6 +67,8 @@ class Exchange:
         "ohlcv_params": {},
         "ohlcv_candle_limit": 500,
         "ohlcv_partial_candle": True,
+        # Check https://github.com/ccxt/ccxt/issues/10767 for removal of ohlcv_volume_currency
+        "ohlcv_volume_currency": "base",  # "base" or "quote"
         "trades_pagination": "time",  # Possible are "time" or "id"
         "trades_pagination_arg": "since",
         "l2_limit_range": None,

freqtrade/exchange/ftx.py

@@ -19,6 +19,7 @@ class Ftx(Exchange):
     _ft_has: Dict = {
         "stoploss_on_exchange": True,
         "ohlcv_candle_limit": 1500,
+        "ohlcv_volume_currency": "quote",
     }
 
     def market_is_tradable(self, market: Dict[str, Any]) -> bool:

freqtrade/plugins/pairlist/VolumePairList.py

@@ -184,12 +184,16 @@ class VolumePairList(IPairList):
                 ] if (p['symbol'], self._lookback_timeframe) in candles else None
                 # in case of candle data calculate typical price and quoteVolume for candle
                 if pair_candles is not None and not pair_candles.empty:
-                    pair_candles['typical_price'] = (pair_candles['high'] + pair_candles['low']
-                                                     + pair_candles['close']) / 3
-                    pair_candles['quoteVolume'] = (
-                        pair_candles['volume'] * pair_candles['typical_price']
-                    )
+                    if self._exchange._ft_has["ohlcv_volume_currency"] == "base":
+                        pair_candles['typical_price'] = (pair_candles['high'] + pair_candles['low']
+                                                         + pair_candles['close']) / 3
 
+                        pair_candles['quoteVolume'] = (
+                            pair_candles['volume'] * pair_candles['typical_price']
+                        )
+                    else:
+                        # Exchange ohlcv data is in quote volume already.
+                        pair_candles['quoteVolume'] = pair_candles['volume']
                     # ensure that a rolling sum over the lookback_period is built
                     # if pair_candles contains more candles than lookback_period
                     quoteVolume = (pair_candles['quoteVolume']