Add option to disable fetch_tickers()

Author: tlex

exporter/connectors/ccxt_connector.py

@@ -50,6 +50,11 @@ class CcxtConnector(Connector):
             'default': False,
             'mandatory': False,
         },
+        'disable_fetch_tickers': {
+            'key_type': 'bool',
+            'default': False,
+            'mandatory': False,
+        },
         'symbols': {
             'key_type': 'list',
             'default': None,
@@ -264,7 +269,7 @@ def retrieve_tickers(self):
 
         log.debug('Retrieving tickers')
         tickers = {}
-        if self.__exchange.has['fetchTickers']:
+        if self.__exchange.has['fetchTickers'] and not self.settings['disable_fetch_tickers']:
             tickers = self.__fetch_tickers()
         else:
             log.warning(constants.WARN_TICKER_SLOW_LOAD)