Bitcoin Price API
If you are trying to do interesting things with bitcoin price data, you shouldn't have to be concerned with the low-level details of how to obtain that data, or the particular JSON structures that it comes in. This module will provide a unified way of getting price data from various exchanges which have publicly available API's, as well as a unified representation of that data rather than exchange specific ones.
Quick Guide
>>> from exchanges import bitfinex
>>> bitfinex.get_current_price()
Decimal('371.17')
Dependencies
The only dependency is on the requests library. You can either
do pip install requests or pip install -r requirements.txt inside the
directory.
Bitstamp, Bitfinex, OKCoin, Huobi
All expose the interface below:
get_current_price()
get_current_bid()
get_current_ask()
which will return a Decimal object.
Note that all exchanges return values in USD, with the
exception of Huobi which returns CNY.
Coindesk
Coindesk offers a much richer price interface:
get_current_price(currency='USD')
get_past_price(date)
get_historical_data_as_dict(start='2013-09-01', end=None)
get_historical_data_as_list(start='2013-09-01', end=None)
get_current_price and get_past_price both return Decimal objects.
get_current_price takes in an optional parameter specifying the currency.
The dates for all functions must be in the form 'YYYY-MM-DD'.
get_historical_data_as_dict will return a dictionary of the following format:
{'2014-10-20': 400.00, '2014-10-21': 301.99}
Remember that these date/prices will not be in any given order.
get_historical_data_as_list will return a list of dictionaries, correctly
sorted by date from start to end.
[{'date': 'YYYY-MM-DD', 'price': 300.00}, {'date': 'YYYY-MM-DD', 'price': 301.00 }]