class Token(dict):
""" steem-engine token dict
:param str token: Name of the token
"""
def __init__(self, symbol, api=None):
if api is None:
self.api = Api()
else:
self.api = api
if isinstance(symbol, dict):
self.symbol = symbol["symbol"]
super(Token, self).__init__(symbol)
else:
self.symbol = symbol.upper()
self.refresh()
def refresh(self):
info = self.get_info()
if info is None:
raise TokenDoesNotExists("Token %s does not exists!" % self.symbol)
super(Token, self).__init__(info)
def quantize(self, amount):
"""Round down a amount using the token precision and returns a Decimal object"""
amount = decimal.Decimal(amount)
places = decimal.Decimal(10) ** (-self["precision"])
return amount.quantize(places, rounding=decimal.ROUND_DOWN)
def get_info(self):
"""Returns information about the token"""
token = self.api.find_one("tokens", "tokens", query={"symbol": self.symbol})
if len(token) > 0:
return token[0]
else:
return token
def get_holder(self, limit=1000, offset=0):
"""Returns all token holders"""
holder = self.api.find("tokens", "balances", query={"symbol": self.symbol}, limit=limit, offset=offset)
return holder
def get_market_info(self):
"""Returns market information"""
metrics = self.api.find_one("market", "metrics", query={"symbol": self.symbol})
if len(metrics) > 0:
return metrics[0]
else:
return metrics
def get_buy_book(self, limit=100, offset=0):
"""Returns the buy book"""
holder = self.api.find("market", "buyBook", query={"symbol": self.symbol}, limit=limit, offset=offset)
return holder
def get_sell_book(self, limit=100, offset=0):
"""Returns the sell book"""
holder = self.api.find("market", "sellBook", query={"symbol": self.symbol}, limit=limit, offset=offset)
return holder
def test_api(self):
api = Api()
result = api.get_latest_block_info()
self.assertTrue(len(result) > 0)
result = api.get_block_info(1910)
self.assertTrue(len(result) > 0)
result = api.get_transaction_info(
"e6c7f351b3743d1ed3d66eb9c6f2c102020aaa5d")
self.assertTrue(len(result) > 0)
result = api.get_contract("tokens")
self.assertTrue(len(result) > 0)
result = api.find("tokens", "tokens")
self.assertTrue(len(result) > 0)
result = api.find_one("tokens", "tokens")
self.assertTrue(len(result) > 0)
result = api.get_history("holger80", "NINJA")
self.assertTrue(len(result) > 0)