Try to verify available amount on the exchange

This commit is contained in:
Matthias 2019-12-13 06:52:33 +01:00
parent f44e3dc319
commit 5db883906a

View File

@ -889,6 +889,27 @@ class FreqtradeBot:
# TODO: figure out how to handle partially complete sell orders
return False
def _safe_sell_amount(self, pair: str, amount: float) -> float:
"""
Get sellable amount.
Should be trade.amount - but will fall back to the available amount if necessary.
This should cover cases where get_real_amount() was not able to update the amount
for whatever reason.
:param pair: pair - used for logging
:param amount: amount we expect to be available
:return: amount to sell
:raise: DependencyException: if available balance is not within 2% of the available amount.
"""
wallet_amount = self.wallets.get_free(pair)
logger.info(f"Amounts: {wallet_amount} - {amount}")
if wallet_amount > amount:
return amount
elif wallet_amount > amount * 0.98:
logger.info(f"{pair} - Falling back to wallet-amount.")
return wallet_amount
else:
raise DependencyException("Not enough amount to sell.")
def execute_sell(self, trade: Trade, limit: float, sell_reason: SellType) -> None:
"""
Executes a limit sell for the given trade and limit
@ -919,10 +940,12 @@ class FreqtradeBot:
# Emergencysells (default to market!)
ordertype = self.strategy.order_types.get("emergencysell", "market")
amount = self._safe_sell_amount(trade.pair, trade.amount)
# Execute sell and update trade record
order = self.exchange.sell(pair=str(trade.pair),
ordertype=ordertype,
amount=trade.amount, rate=limit,
amount=amount, rate=limit,
time_in_force=self.strategy.order_time_in_force['sell']
)