"""
Just a quick mixing for parsing a list of exchanges out of the querystring.
"""
DEFAULT_EXCHANGES = ['BITSTAMP', 'ITBIT', 'GEMINI']
[docs]class ActiveExchangesMixin():
[docs] def get_active_exchanges(self, custom_defaults=None):
raw_active_exchanges = self.get_argument('exchanges', None)
active_exchanges = self.parse_active_exchanges(
raw_active_exchanges,
custom_defaults,
)
return active_exchanges
[docs] def parse_active_exchanges(self, query_param, custom_defaults=None):
if query_param is None:
if custom_defaults is not None:
return custom_defaults
else:
return DEFAULT_EXCHANGES
else:
exchange_names = query_param.split(',')
exchange_names = [e.upper() for e in exchange_names]
return exchange_names