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add trailing stop loss config validator

This commit is contained in:
misagh 2019-03-12 13:03:29 +01:00
parent f1f311e456
commit 643262bc6a
1 changed files with 26 additions and 0 deletions
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26
freqtrade/exchange/exchange.py
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@ -111,6 +111,8 @@ class Exchange(object):
self.validate_pairs(config['exchange']['pair_whitelist'])
self.validate_ordertypes(config.get('order_types', {}))
self.validate_order_time_in_force(config.get('order_time_in_force', {}))
self.validate_trailing_stoploss(config)
if config.get('ticker_interval'):
# Check if timeframe is available
self.validate_timeframes(config['ticker_interval'])
@ -257,6 +259,30 @@ class Exchange(object):
raise OperationalException(
f'Time in force policies are not supporetd for {self.name} yet.')
def validate_trailing_stoploss(self, config) -> None:
"""
Validates the trailing stoploss configuration
"""
tsl = config.get('trailing_stop', False)
# Skip if trailing stoploss is not activated
if not tsl:
return
tsl_positive = float(config.get('trailing_stop_positive', 0))
tsl_offset = float(config.get('trailing_stop_positive_offset', 0))
tsl_only_offset = config.get('trailing_only_offset_is_reached', False)
if tsl_only_offset:
if tsl_positive == 0.0:
raise OperationalException(
f'The config trailing_only_offset_is_reached need '
'trailing_stop_positive_offset to be more than 0 in your config')
if tsl_positive > 0 and tsl_offset > 0 and tsl_offset <= tsl_positive:
raise OperationalException(
f'The config trailing_stop_positive_offset need '
'to be greater than trailing_stop_positive_offset in your config')
def exchange_has(self, endpoint: str) -> bool:
"""
Checks if exchange implements a specific API endpoint.