[#16] Support Bittrex Public API

libcryptomarket/api/__init__.py

@@ -2,6 +2,7 @@
 # flake8: noqa
 from libcryptomarket.api.bitfinex_api import BitfinexApi
 from libcryptomarket.api.bitmex_api import BitmexApi
+from libcryptomarket.api.bittrex_api import BittrexApi
 from libcryptomarket.api.coinmarketcap_api import CoinMarketCapApi
 from libcryptomarket.api.gdax_api import GdaxApi
 from libcryptomarket.api.poloniex_api import PoloniexApi

libcryptomarket/api/bittrex_api.py

@@ -0,0 +1,83 @@
+#!/bin/python
+from libcryptomarket.api.exchange_api import ExchangeApi
+
+
+class BittrexApi(ExchangeApi):
+    """Bittrex API.
+    """
+
+    def __init__(self, public_key=None, private_key=None, logger=None):
+        """Constructor.
+
+        :param public_key: Public key.
+        :param private_key: Private key.
+        :param logger: Logger.
+        """
+        ExchangeApi.__init__(self, public_key, private_key, logger)
+
+    @classmethod
+    def get_url(cls):
+        """Get API url.
+        """
+        return "https://bittrex.com/api"
+
+    @classmethod
+    def get_public_calls(cls):
+        """Get public API calls.
+        """
+        return {
+            'getmarkets': 'GET',
+            'getcurrencies': 'GET',
+            'getticker': 'GET',
+            'getmarketsummaries': 'GET',
+            'getmarketsummary': 'GET',
+            'getorderbook': 'GET',
+            'getmarkethistory': 'GET',
+            'getticks': 'GET',
+        }
+
+    @classmethod
+    def get_private_calls(cls):
+        """Get public API calls.
+        """
+        return {}
+
+    @classmethod
+    def translate_call_name(cls, name):
+        """Translate API call name.
+
+        The class method name is always underscored (aligned with Python
+        standard.) This method is to translate underscored name to exchange
+        API call name.
+
+        :param name: Method name (underscored).
+        """
+        return name.replace("_", "")
+
+    def _request_public(self, name, http_method, **kwargs):
+        """Request public API call.
+
+        :param name: Method name.
+        :param http_method: HTTP method (POST, GET, DELETE).
+        """
+        self.log_info("Public request:\n" +
+                      "name: {}\n".format(name) +
+                      "http_method: {}\n".format(http_method) +
+                      "kwargs: {}".format(kwargs))
+
+        if name == 'getticks':
+            return self._send_request(
+                command="/v2/public/" + name, http_method=http_method,
+                public_method=True, params=kwargs)
+
+        return self._send_request(
+            command="/v1.1/public/" + name, http_method=http_method,
+            public_method=True, params=kwargs)
+
+    def _request_private(self, name, http_method, **kwargs):
+        """Request private API call.
+
+        :param name: Method name.
+        :param http_method: HTTP method (POST, GET, DELETE).
+        """
+        raise NotImplementedError("Not support private api at this moment.")

libcryptomarket/core/order_book.py

@@ -12,6 +12,8 @@ def order_book(source, symbol, depth=5):
 
     if source_name == "poloniex":
         return _order_book_poloniex(source, symbol, depth)
+    elif source_name == "bittrex":
+        return _order_book_bittrex(source, symbol, depth)
     else:
         raise ValueError("Source (%s [%s]) does not support order book"
                          % (source, source_name))
@@ -38,3 +40,21 @@ def _order_book_poloniex(source, symbol, depth=5):
     data = pd.concat(data, axis=1).astype('float64')
 
     return data
+
+
+def _order_book_bittrex(source, symbol, depth=5):
+    """Return the order book from Poloniex
+
+    :param source: Source, an Exchange API object.
+    :param symbol: Symbol.
+    :param depth: Depth of the order book.
+    """
+    response = source.get_order_book(market=symbol, type="both")
+    response.raise_for_status()
+    data = response.json()['result']
+    data = pd.concat([pd.DataFrame(data['buy']), pd.DataFrame(data['sell'])],
+                     axis=1,
+                     keys=['bids', 'asks'])
+    data.index = data.index + 1
+
+    return data