Merge branch 'develop' into feat/short

freqtrade/exchange/__init__.py

@@ -19,3 +19,4 @@ from freqtrade.exchange.gateio import Gateio
 from freqtrade.exchange.hitbtc import Hitbtc
 from freqtrade.exchange.kraken import Kraken
 from freqtrade.exchange.kucoin import Kucoin
+from freqtrade.exchange.okex import Okex

freqtrade/exchange/exchange.py

@@ -1710,7 +1710,7 @@ def is_exchange_known_ccxt(exchange_name: str, ccxt_module: CcxtModuleType = Non
 
 
 def is_exchange_officially_supported(exchange_name: str) -> bool:
-    return exchange_name in ['bittrex', 'binance', 'kraken']
+    return exchange_name in ['bittrex', 'binance', 'kraken', 'ftx', 'gateio', 'okex']
 
 
 def ccxt_exchanges(ccxt_module: CcxtModuleType = None) -> List[str]:

freqtrade/exchange/okex.py

@@ -0,0 +1,18 @@
+import logging
+from typing import Dict
+
+from freqtrade.exchange import Exchange
+
+
+logger = logging.getLogger(__name__)
+
+
+class Okex(Exchange):
+    """
+    Okex exchange class. Contains adjustments needed for Freqtrade to work
+    with this exchange.
+    """
+
+    _ft_has: Dict = {
+        "ohlcv_candle_limit": 100,
+    }