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added methods _contract_size_to_amount and _amount_to_contract_size, added _amount_to_contract_size to create_order, added contract_size_to_amount to get_min_leverage

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This commit is contained in:
Sam Germain 2021-11-13 17:11:28 -06:00
parent ddfbe55e7c
commit 3f75531105
1 changed files with 19 additions and 1 deletions
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20
freqtrade/exchange/exchange.py
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@ -667,7 +667,10 @@ class Exchange:
# for cost (quote, stake currency), so max() is used here.
# See also #2575 at github.
return self._get_stake_amount_considering_leverage(
max(min_stake_amounts) * amount_reserve_percent,
self._contract_size_to_amount(
pair,
max(min_stake_amounts) * amount_reserve_percent
),
leverage or 1.0
)
@ -835,6 +838,20 @@ class Exchange:
params.update({param: time_in_force})
return params
def _amount_to_contract_size(self, pair: str, amount: float):
if ('contractSize' in self._api.markets[pair]):
return amount / self._api.markets[pair]['contractSize']
else:
return amount
def _contract_size_to_amount(self, pair: str, amount: float):
if ('contractSize' in self._api.markets[pair]):
return amount * self._api.markets[pair]['contractSize']
else:
return amount
def create_order(self, pair: str, ordertype: str, side: str, amount: float,
rate: float, leverage: float = 1.0, time_in_force: str = 'gtc') -> Dict:
# TODO-lev: remove default for leverage
@ -852,6 +869,7 @@ class Exchange:
rate_for_order = self.price_to_precision(pair, rate) if needs_price else None
self._lev_prep(pair, leverage)
amount = self._amount_to_contract_size(pair, amount)
order = self._api.create_order(
pair,
ordertype,