merged with feat/short

freqtrade/exchange/binance.py

@@ -3,6 +3,7 @@ import logging
 from datetime import datetime
 from typing import Dict, List, Optional
 
+import arrow
 import ccxt
 
 from freqtrade.exceptions import (DDosProtection, InsufficientFundsError, InvalidOrderException,
@@ -19,6 +20,7 @@ class Binance(Exchange):
     _ft_has: Dict = {
         "stoploss_on_exchange": True,
         "order_time_in_force": ['gtc', 'fok', 'ioc'],
+        "time_in_force_parameter": "timeInForce",
         "ohlcv_candle_limit": 1000,
         "trades_pagination": "id",
         "trades_pagination_arg": "fromId",
@@ -117,5 +119,25 @@ class Binance(Exchange):
         if premium_index is None:
             raise OperationalException("Funding rate cannot be None for Binance._get_funding_fee")
         nominal_value = mark_price * contract_size
-        adjustment = nominal_value * _calculate_funding_rate(pair, premium_index)
+        funding_rate = self._calculate_funding_rate(pair, premium_index)
+        if funding_rate is None:
+            raise OperationalException("Funding rate should never be none on Binance")
+        adjustment = nominal_value * funding_rate
         return adjustment
+
+    async def _async_get_historic_ohlcv(self, pair: str, timeframe: str,
+                                        since_ms: int, is_new_pair: bool
+                                        ) -> List:
+        """
+        Overwrite to introduce "fast new pair" functionality by detecting the pair's listing date
+        Does not work for other exchanges, which don't return the earliest data when called with "0"
+        """
+        if is_new_pair:
+            x = await self._async_get_candle_history(pair, timeframe, 0)
+            if x and x[2] and x[2][0] and x[2][0][0] > since_ms:
+                # Set starting date to first available candle.
+                since_ms = x[2][0][0]
+                logger.info(f"Candle-data for {pair} available starting with "
+                            f"{arrow.get(since_ms // 1000).isoformat()}.")
+        return await super()._async_get_historic_ohlcv(
+            pair=pair, timeframe=timeframe, since_ms=since_ms, is_new_pair=is_new_pair)