Huobi Open Close Contract

# -*- coding: utf-8 -*-

import os
from random import randint
import sys
from pprint import pprint


import ccxt  # noqa: E402


print('CCXT Version:', ccxt.__version__)

exchange = ccxt.huobi({
   'apiKey': 'YOUR_API_KEY',
   'secret': 'YOUR_SECRET',
   'options': {
       'defaultType': 'swap',
       'marginType': 'cross'
   },
})

markets = exchange.load_markets()


exchange.verbose = True  # uncomment for debugging purposes if necessary


# Example: creating and closing a contract
symbol = 'ADA/USDT:USDT'
order_type = 'limit' # market positions for contracts not available
side = 'buy'
offset = 'open'
leverage = 1
amount = 1
price = 1.14615 # adjust this accordingly
client_order_id = 1

params = {'offset': offset, 'lever_rate': leverage, 'client_order_id': client_order_id}

try:
   # fetching current balance
   balance = exchange.fetch_balance()
   # print(balance)

   # # placing an order
   order = exchange.create_order(symbol, order_type, side, amount, price, params)
   # print(order)

   # # list open position
   position = exchange.fetch_position(symbol)
   # print(position)

   # closing it by issuing an oposite contract 
   # warning: since we can only place limit orders
   # it might take a while (depending on the price we choose and market fluctuations) 
   # to the order be fulfilled
   # and therefore close our previous position
   side = 'sell'
   type = 'limit'
   offset = 'close'
   reduce_only = 1 # 1 : yes, 0: no
   client_order_id = 5
   price = 1.11 # adjust this accordingly
   params = {'offset': offset, 'reduce_only': reduce_only, 'client_order_id': client_order_id}
   opositeOrder = exchange.create_order(symbol, order_type, side, amount, price, params)
   print(opositeOrder)
except Exception as e:
   print(type(e).__name__, str(e))