class GetLatestPriceController(object):
"""Gets the latest known price for a given symbol"""
def __init__(self):
self.log = Log(file_handler, self.__class__.__name__)
def call(self, symbol):
if symbol not in allowed_symbols or not buffer_dict:
self.log.debug("Requested symbol %s is not allowed or has no data." % symbol)
return json.dumps({"result": None})
last_trade_time = max(buffer_dict)
data = buffer_dict.get(last_trade_time)
result = {"symbol": data.get("symbol"),
"price": data.get("price"),
"time": last_trade_time.strftime("%Y-%m-%d %H:%M:%S")}
return json.dumps({"result": result})
class GetChartDataController(object):
"""Gets chart data for a given symbol"""
def __init__(self):
self.log = Log(file_handler, self.__class__.__name__)
def call(self, symbol):
if symbol not in allowed_symbols or not buffer_dict:
self.log.debug("Requested symbol %s is not allowed or has no data." % symbol)
return json.dumps({"result": None})
labels = [k.strftime("%H:%M:%S") for k in buffer_dict.keys()]
data = [p.get("price") for p in buffer_dict.values()]
result = {"symbol": symbol,
"labels": labels,
"data": data,
"min": float(min(data)) - 10,
"max": float(max(data)) + 10}
return json.dumps({"result": result})