def cancel_order(self, order_id: str, pair: str, price: Wad, amount: Wad,
is_sell: bool) -> bool:
assert (isinstance(order_id, str))
assert (isinstance(pair, str))
assert (isinstance(is_sell, bool))
assert (isinstance(price, Wad))
assert (isinstance(amount, Wad))
self.logger.info(f"Cancelling order #{order_id}...")
currency = pair.split('-')[0]
is_ask = 1 if is_sell is True else 0
data = {
"order_id": order_id,
"currency": currency,
"price": str(round(Wad.__float__(price),
2)), # quote token is always krw
"qty": str(round(Wad.__float__(amount), 2)),
"is_ask": is_ask
}
result = self._http_authenticated_request("POST", f"/v2/order/cancel",
data)
return True if result["result"] == "success" else False
def place_order(self, pair: str, is_sell: bool, price: Wad,
amount: Wad) -> str:
assert (isinstance(pair, str))
assert (isinstance(is_sell, bool))
assert (isinstance(price, Wad))
assert (isinstance(amount, Wad))
side = "limit_buy" if is_sell is False else "limit_sell"
currency = pair.split('-')[0]
# Coinone krw price precision must be specified based upon a given range
float_price = Wad.__float__(price)
price_prec = self._calc_price_precision(float_price)
price = round(round(float_price / price_prec, 0) * price_prec, 0)
data = {
"currency": currency,
"price": str(price),
"qty": str(round(Wad.__float__(amount), 2))
}
self.logger.info(
f"Placing order ({side}, amount {data['qty']} of {pair},"
f" price {data['price']})...")
response = self._http_authenticated_request("POST",
f"/v2/order/{side}", data)
order_id = ""
if response['result'] == 'success':
order_id = response['orderId']
self.logger.info(f"Placed order (#{order_id})")
return order_id
