def bitasset_local(bitshares, base_bitasset, default_account):
asset = base_bitasset()
dex = Dex(blockchain_instance=bitshares)
# Set initial price feed
price = Price(1.5, base=asset, quote=Asset("TEST"))
bitshares.publish_price_feed(asset.symbol, price, account=default_account)
# Borrow some amount
to_borrow = Amount(100, asset)
dex.borrow(to_borrow, collateral_ratio=2.1, account=default_account)
# Drop pricefeed to cause margin call
price = Price(1.0, base=asset, quote=Asset("TEST"))
bitshares.publish_price_feed(asset.symbol, price, account=default_account)
return asset
def borrow(ctx, amount, symbol, ratio, account):
""" Borrow a bitasset/market-pegged asset
"""
from bitshares.dex import Dex
dex = Dex(bitshares_instance=ctx.bitshares)
print_tx(
dex.borrow(Amount(amount, symbol),
collateral_ratio=ratio,
account=account))
data = ticker.get('quoteSettlement_price')
feed_price = data.get('price')
print(feed_price)
# получаем баланс в шарах на аккаунте
balance = account.balance(quote)
# всегда берем целую часть шар для займа. остаток оставляем на комиссии
collateral = int(balance.get('amount'))
print(collateral)
if collateral > 0:
# находим сколько можно напечатать юаней с нашим перекрытием
debt = (1/feed_price)/init_ratio*collateral
print(debt)
# подготавливаем переменную вида "1 CNY"
amount = Amount(debt, base)
print(amount)
# печатаем битассет
dex.borrow(amount, collateral, our_account)
# расчитываем call price
#call_price = 1/((debt/collateral)*margin_ratio)
#print(call_price)
print('done!')