cryptokitties_arbitrage.py

def handle_transaction(tx):
  # if(tx[u'to'] == KITTY_AUCTION):
  #   kitty_frontrun(tx)

  if (tx[u'to'] == KITTY_CORE_CONTRACT):
    kitty_instabid(tx)

    
def kitty_instabid(tx):
  if (get_tx_method(tx) == CREATE_SALE_AUCTION):

    generation, cooldown, price = get_kitty_params(tx)
    gas_price = int(tx[u'gasPrice'], 16)

    is_good_deal = price < calculateThresholdPrice(generation, cooldown)
    if (is_good_deal):
      try_buy_kitty(..., gas_price=gas_price) # buy in same block
      await_confirmation(tx)
      try_buy_kitty(..., gas_price=200 gwei) # buy in next block

      
while True:
  tx = nextPendingTX()
  handle_transaction(tx)