Method handle_post_only

python/ccxt/base/exchange.py:7213–7237

@ignore :param str type: Order type :param boolean exchangeSpecificBoolean: exchange specific postOnly :param dict [params]: exchange specific params :returns Array:

(self, isMarketOrder: bool, exchangeSpecificPostOnlyOption: bool, params: Any = {})

            return False

    def handle_post_only(self, isMarketOrder: bool, exchangeSpecificPostOnlyOption: bool, params: Any = {}):
        """
 @ignore
        :param str type: Order type
        :param boolean exchangeSpecificBoolean: exchange specific postOnly
        :param dict [params]: exchange specific params
        :returns Array:
        """
        timeInForce = self.safe_string_upper(params, 'timeInForce')
        postOnly = self.safe_bool(params, 'postOnly', False)
        ioc = timeInForce == 'IOC'
        fok = timeInForce == 'FOK'
        po = timeInForce == 'PO'
        postOnly = postOnly or po or exchangeSpecificPostOnlyOption
        if postOnly:
            if ioc or fok:
                raise InvalidOrder(self.id + ' postOnly orders cannot have timeInForce equal to ' + timeInForce)
            elif isMarketOrder:
                raise InvalidOrder(self.id + ' market orders cannot be postOnly')
            else:
                if po:
                    params = self.omit(params, 'timeInForce')
                params = self.omit(params, 'postOnly')
                return [True, params]
        return [False, params]

    def fetch_last_prices(self, symbols: Strings = None, params={}):
        raise NotSupported(self.id + ' fetchLastPrices() is not supported yet')