Method close_position

python/ccxt/async_support/htx.py:9135–9198

closes open positions for a contract market https://www.htx.com/en-us/opend/newApiPages/?id=8cb89359-77b5-11ed-9966-1958953a715 # USDT-M https://huobiapi.github.io/docs/coin_margined_swap/v1/en/#place-lightning-close-order # Coin-M swap https://huobiapi.github.i

(self, symbol: str, side: OrderSide = None, params={})

        })

    async def close_position(self, symbol: str, side: OrderSide = None, params={}) -> Order:
        """
        closes open positions for a contract market

        https://www.htx.com/en-us/opend/newApiPages/?id=8cb89359-77b5-11ed-9966-1958953a715    # USDT-M
        https://huobiapi.github.io/docs/coin_margined_swap/v1/en/#place-lightning-close-order  # Coin-M swap
        https://huobiapi.github.io/docs/dm/v1/en/#place-flash-close-order                      # Coin-M futures

        :param str symbol: unified CCXT market symbol
        :param str side: 'buy' or 'sell', the side of the closing order, opposite side side
        :param dict [params]: extra parameters specific to the okx api endpoint
        :param str [params.clientOrderId]: client needs to provide unique API and have to maintain the API themselves afterwards. [1, 9223372036854775807]
        :param dict [params.marginMode]: 'cross' or 'isolated', required for linear markets

 EXCHANGE SPECIFIC PARAMETERS
        :param number [params.amount]: order quantity
        :param str [params.order_price_type]: 'lightning' by default, 'lightning_fok': lightning fok type, 'lightning_ioc': lightning ioc type 'market' by default, 'market': market order type, 'lightning_fok': lightning
        :param str [params.position_side]: linear swap supports 'long', 'short' and 'both', 'both' is the default
        :returns dict: `an order structure <https://docs.ccxt.com/?id=position-structure>`
        """
        await self.load_markets()
        market = self.market(symbol)
        clientOrderId = self.safe_string(params, 'clientOrderId')
        if not market['contract']:
            raise BadRequest(self.id + ' closePosition() symbol supports contract markets only')
        request = {
            'contract_code': market['id'],
        }
        if clientOrderId is not None:
            request['client_order_id'] = clientOrderId
            params = self.omit(params, 'clientOrderId')
        response = None
        if market['linear']:
            marginMode = None
            marginMode, params = self.handle_margin_mode_and_params('closePosition', params, 'cross')
            request['margin_mode'] = marginMode
            response = await self.contractPrivatePostV5TradePosition(self.extend(request, params))
            #
            #     {
            #         "code": 200,
            #         "message": "Success",
            #         "data": {
            #             "order_id": 1513557136321597440,
            #             "client_order_id": "1513557136321597440"
            #         },
            #         "ts": 1780901741840
            #     }
            #
        else:
            self.check_required_argument('closePosition', side, 'side')
            amount = self.safe_string_2(params, 'volume', 'amount')
            if amount is None:
                raise ArgumentsRequired(self.id + ' closePosition() requires an extra argument params["amount"] for inverse markets')
            request['volume'] = self.amount_to_precision(symbol, amount)
            request['direction'] = side
            params = self.omit(params, ['volume', 'amount'])
            if market['swap']:
                response = await self.contractPrivatePostSwapApiV1SwapLightningClosePosition(self.extend(request, params))