bitex-kraken 1.0.0

Kraken extension for the Bitcoin Exchange (BitEx) REST API Framwork

Installation

Installation is simple, as it should be:

pip install bitex-kraken

Qickstart

After installing, requesting data is easy:

>>>from bitex import BitexSession
>>>session = BitexSession()
# bitex.BitexSession provides a set of methods to execute the most common queries
>>>r = session.ticker("kraken", "XBTUSD")
# The response objects returned are bitex.BitexResponses, which behave like regular requests.Response objects.
>>>r
<KrakenResponse [200]>
>>>r.json()
{
    "error":[],
    "result": {
        "XXBTZUSD":{
            "a":["3809.10000","1","1.000"],
            "b":["3809.00000","1","1.000"],
            "c":["3809.60000","0.11007700"],
            "v":["1378.29558699","4120.69226171"],
            "p":["3798.72908","3797.90051"],
            "t":[1960,5958],
            "l":["3776.90000","3775.80000"],
            "h":["3817.60000","3819.30000"],
            "o":"3796.20000"
        }
    }
}
# bitex-kraken also provides convenience methods for data piping
>>>r.key_value_dict()
{
  "uid": "<uid>",
  "received": "<ts>",
  "ask_price": "52131.00000",
  "ask_size": "1.000",
  "ask_size": "52130.10000",
  "bid_size": "2.000",
  "last_price": "52130.20000",
  "last_size": "0.04000000",
  "vol": "1231.07009049",
  "vol_24h": "6124.65870266",
  "vwap": "52031.82478",
  "vwap_24h": "51669.15093",
  "trades": "14674",
  "trades_24h": "59777",
  "high": "52555.10000",
  "high_24h": "52779.60000",
  "low": "51370.00000",
  "low_24h": "50519.00000",
  "open": "52130.00000"
}
# Or for storing them as uid-label-value triples
>>>r.triples()
[
  ["<uid>", "ask_price", "52131.00000"],
  ["<uid>", "ask_size", "1.000"],
  ["<uid>", "ask_size", "52130.10000"],
  ["<uid>", "bid_size", "2.000"],
  ["<uid>", "last_price", "52130.20000"],
  ["<uid>", "last_size", "0.04000000"],
  ["<uid>", "vol", "1231.07009049"],
  ["<uid>", "vol_24h", "6124.65870266"],
  ["<uid>", "vwap", "52031.82478"],
  ["<uid>", "vwap_24h", "51669.15093"],
  ["<uid>", "trades", "14674"],
  ["<uid>", "trades_24h", "59777"],
  ["<uid>", "high", "52555.10000"],
  ["<uid>", "high_24h", "52779.60000"],
  ["<uid>", "low", "51370.00000"],
  ["<uid>", "low_24h", "50519.00000"],
  ["<uid>", "open", "52130.00000"],
  ["<uid>", "received", "<ts>"]
]

Note

On the uid value

In the above example, “<uid>” is a string generated by uuid.uuid4 and is used to identify separate objects within a request. It’s generated by us, not Kraken and is NOT tracked between requests. i.e. the same order has a different uid across requests. Keep this in mind when piping data into your backend systems.

Development

If you’re looking to work on or with bitex-framework, you’ll want the development environment setup. We’ve supplied a few make targets to make your life easier:

# Install bitex and its development requirements
make development

We also supply targets to run code formatters, linters and tests:

# Run code formatters
make pretty

# Verify code style
make style-check

# Run tests via tox
tox -e testenv

If you’d like to contribute to the project, please have a look at CONTRIBUTING.rst on some general pointers about how development takes place, what the expected steps of you are and what requirements we have to merge a PR.