Method is_post_only

python/ccxt/base/exchange.py:7188–7211

@ignore :param str type: Order type :param boolean exchangeSpecificParam: exchange specific postOnly :param dict [params]: exchange specific params :returns boolean: True if a post only order, False otherwise

(self, isMarketOrder: bool, exchangeSpecificParam, params={})

        return self.handle_trigger_and_params(params)

    def is_post_only(self, isMarketOrder: bool, exchangeSpecificParam, params={}):
        """
 @ignore
        :param str type: Order type
        :param boolean exchangeSpecificParam: exchange specific postOnly
        :param dict [params]: exchange specific params
        :returns boolean: True if a post only order, False otherwise
        """
        timeInForce = self.safe_string_upper(params, 'timeInForce')
        postOnly = self.safe_bool_2(params, 'postOnly', 'post_only', False)
        # we assume timeInForce is uppercase from safeStringUpper(params, 'timeInForce')
        ioc = timeInForce == 'IOC'
        fok = timeInForce == 'FOK'
        timeInForcePostOnly = timeInForce == 'PO'
        postOnly = postOnly or timeInForcePostOnly or exchangeSpecificParam
        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:
                return True
        else:
            return False

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