async def gas_price_update_loop(self):
while True:
try:
url = ETH_GASSTATION_API_URL.format(self.api_key)
async with aiohttp.ClientSession() as client:
response = await client.get(url=url)
if response.status != 200:
raise IOError(f"Error fetching current gas prices. "
f"HTTP status is {response.status}.")
resp_data: Dict[str, Any] = await response.json()
for key, value in resp_data.items():
if key in GasLevel.__members__:
self._gas_prices[GasLevel[key]] = Decimal(
str(value)) / Decimal("10")
prices_str = ', '.join([
k.name + ': ' + str(v)
for k, v in self._gas_prices.items()
])
self.logger().info(f"Gas levels: [{prices_str}]")
for name, con_setting in CONNECTOR_SETTINGS.items():
if con_setting.use_eth_gas_lookup:
self._gas_limits[name] = get_gas_limit(name)
self.logger().info(
f"{name} Gas estimate:"
f" limit = {self._gas_limits[name]:.0f},"
f" price = {self.gas_level.name},"
f" estimated cost = {get_gas_price(False) * self._gas_limits[name]:.5f} ETH"
)
await asyncio.sleep(self.refresh_time)
except asyncio.CancelledError:
raise
except Exception:
self.logger().network("Unexpected error running logging task.",
exc_info=True)
await asyncio.sleep(self.refresh_time)
def fee_overrides_dict():
all_dict = {}
# all_connector_types = get_exchanges_and_derivatives()
for name, setting in CONNECTOR_SETTINGS.items():
key_suffix = None
if setting.fee_type is TradeFeeType.Percent:
key_suffix = "fee"
elif setting.fee_type is TradeFeeType.FlatFee:
key_suffix = "fee_amount"
maker_key = f"{name}_maker_{key_suffix}"
taker_key = f"{name}_taker_{key_suffix}"
all_dict.update({maker_key: new_fee_config_var(maker_key)})
all_dict.update({taker_key: new_fee_config_var(taker_key)})
return all_dict
