Sell HNS automatically

namebase.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import sys
from decimal import Decimal
from datetime import datetime

try:
    import requests
    import simplejson as json
except ImportError:
    raise ImportError('You must install requests and simplejson first!')


namebase_cookie = 's:'
btc_address = 'bc1q3hkc265vxqu8dk4dkk68sf607086vmckwm2z6e'
# The unit of expect_prices is mBTC! 1 BTC = 1,000 mBTC. the smallest unit of mBTC is 1e−5
expect_prices = [
    # min unit price (mBTC per HNS), max unit price (mBTC per HNS), the amount of HNS to sell
    ('0.02', 999, 5000),
    (0, '0.005', 3000),
    ('0.018', '0.01999', 2000),
]
reserve_amount = 500


def time():
    return datetime.now().isoformat()


def normalize(d):
    return '{:f}'.format(d.normalize())


def prin(*args, **kwargs):
    args = [normalize(arg) if isinstance(arg, Decimal) else arg for arg in args]
    return print(time(), *args, **kwargs)


def get_hns_balance(s):
    r = s.get('https://www.namebase.io/api/user')
    # Format: str Unit: μHNS
    balance = Decimal(r.json()['hns_balance']) / 1000 / 1000
    prin('You have', balance, 'HNS.')
    return balance


def get_current_price(s, p):
    r = s.get('https://www.namebase.io/api/exchange/sell', timeout=2)
    # Format: float Unit: BTC
    price = r.json(use_decimal=True)['price'] * 1000
    if p:
        prin('Current price is', price, 'mBTC.')
    return price


def sell_hns(amount, s):
    r = s.post('https://www.namebase.io/api/exchange/trade/hns/btc', json={
        'address': btc_address,
        'amount': normalize(amount * 1000 * 1000),
    })
    # {'success': bool, 'txHash': str, 'baseAmount': str HNS, 'quoteAmount': str BTC, 'user': {'hns_balance': str μHNS}}
    # {'errorCode': str, 'errorData': dict}
    res = r.json()
    if 'success' in res and res['success']:
        balance = Decimal(res['user']['hns_balance']) / 1000 / 1000
        prin('Sold', Decimal(res['baseAmount']), 'HNS for', Decimal(res['quoteAmount']) / 1000, 'mBTC.',
             'You have', balance, 'HNS left.')
    else:
        prin('Sell HNS failed:', 'errorCode' in res and res['errorCode'] or 'UnknownError', file=sys.stderr)
        balance = get_hns_balance(s)
    return balance


def run():
    with requests.Session() as s:
        requests.utils.add_dict_to_cookiejar(s.cookies, {
            'namebase-main': namebase_cookie,
        })
        balance = get_hns_balance(s)
        reserved = Decimal(reserve_amount)

        i = 0
        while True:
            if balance <= reserved:
                prin('The reserve amount is', reserved, 'HNS, but you only have', balance, 'HNS.')
                break

            try:
                price = get_current_price(s, i % 10 == 0)
                for inx, (min_price, max_price, amount) in enumerate(expect_prices):
                    if Decimal(min_price) <= price <= Decimal(max_price):
                        amount = Decimal(amount)
                        if amount > balance:
                            amount = balance
                        if balance - amount < reserved:
                            amount = balance - reserved

                        prin('Selling', amount, 'HNS for', price, 'mBTC each.')
                        balance = sell_hns(amount, s)
                        expect_prices.pop(inx)
                        break
            except Exception as e:
                prin(e, file=sys.stderr)
            i += 1


if __name__ == '__main__':
    run()

namebase_cookie: Cookie named namebase-main.
btc_address: Your BTC address. Keep it if you wanna donate to me😆
reserve_amount: The amount of HNS that you do not want to sell.
expect_prices: Well, hard to explain. Just see the examples.
第一行空仓跑路，第二行割肉止损，第三行落袋为安。

老哥你这写死的btc地址有点狠。

老哥你这写死的btc地址有点狠。

就一脚本，啥参数不改都跑不起来，上面这4个参数都是让你改的
namebase_cookie不设连价格都获取不了，btc_address改成你自己的，reserve_amount不看好这币的前景就设成0，看好的话想留多少自己设，expect_prices说不定明天又腰斩了，根据行情和自己的心理价位设

再解释下expect_prices，就跟交易所挂单一样，只不过不占用任何实际额度，优先级从前到后，匹配到第一个就停止，卖出成功后该规则自动失效，一直到余额<=reserve_amount为止。

expect_prices = [
    ('0.02', 999, 5000),
    (0, '0.005', 3000),
    ('0.018', '0.01999', 2000),
]
reserve_amount = 500

针对这个示例说明，假设我现在有4000HNS，我的心理价位是0.02mBTC/HNS，所以我第一条规则就设置了当价格>=0.02mBTC/HNS时，卖出5000HNS，因为我只有4000HNS，还设置了保留500HNS，如果价格涨到0.02BTC/HNS，那么脚本就会卖出3500HNS。但HNS的价格一直在跌，我怕不仅涨不到我的心理价位，还会一直跌下去，所以我设置了当价格低于0.005mBTC/HNS时，卖出3000HNS以止损。不过无论是0.02还是0.005，都距离现在的行情有些距离，所以我在第三条设置了当价格为0.018-0.01999mBTC/HNS，卖出2000HNS以保证收益，所以只要这条规则被触发过，那就只剩下4000-2000-500=1500HNS可卖了。如果价格一直往上涨，直到大于0.02mBTC/HNS，那么我的收益当然比不加最后一条规则要少，但如果价格涨到0.018mBTC/HNS后又一路下跌，那么我至少保证了2000HNS*0.018mBTC/HNS=36mBTC的收益

https://www.namebase.io/pro
发现这里能直接挂单。。。已售。

https://www.namebase.io/pro
发现这里能直接挂单。。。已售。

我也是一开始没发现，白写了个脚本

https://www.namebase.io/pro
发现这里能直接挂单。。。已售。

我也是一开始没发现，白写了个脚本

我也是。。。。看着你这个挂单，后面发现朋友说那里能挂单。