Add BitcoinAverage API

2 files changed, 58 insertions, 1 deletions

diff --git a/cfetch/__init__.py b/cfetch/__init__.py
index 6247622..6e4f2de 100644
--- a/cfetch/__init__.py
+++ b/cfetch/__init__.py
@@ -21,7 +21,7 @@ from os.path import basename, dirname, exists, expanduser, isdir, join
 from os.path import realpath
 from requests import get
 
-__version__ = '5.0.1'
+__version__ = '5.1.0'
 
 ## A cryptocurrency exchange rate ticker.
 class Ticker():
diff --git a/cfetch/plugins/bitcoinaverage.py b/cfetch/plugins/bitcoinaverage.py
new file mode 100644
index 0000000..02fb5d5
--- /dev/null
+++ b/cfetch/plugins/bitcoinaverage.py
@@ -0,0 +1,57 @@
+##
+##  coinfetch-api-bitcoinaverage - BitcoinAverage API plugin for coinfetch
+##  Copyright (C) 2015 Delwink, LLC
+##
+##  This program is free software: you can redistribute it and/or modify
+##  it under the terms of the GNU Affero General Public License as published by
+##  the Free Software Foundation, version 3 only.
+##
+##  This program is distributed in the hope that it will be useful,
+##  but WITHOUT ANY WARRANTY; without even the implied warranty of
+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##  GNU Affero General Public License for more details.
+##
+##  You should have received a copy of the GNU Affero General Public License
+##  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+from cfetch import register_ticker, Ticker
+from requests import get
+
+class BitcoinAverageTicker(Ticker):
+    def __init__(self, path, kind='24h_avg'):
+        super().__init__(path, kind)
+
+    def get_pair_data(self, response):
+        return response.json()
+
+    def get_rate(self, a, b, amt=1):
+        a = a.upper()
+        b = b.upper()
+        if 'BTC' not in (a, b):
+            self._fail(a, b)
+
+        r = get(self.path)
+        res = self.get_pair_data(r)
+
+        try:
+            if a == 'BTC':
+                if b not in res:
+                    self._fail(a, b)
+
+                res = res[b]
+                return float(res[self.kind]) * amt
+
+            if a not in res:
+                self._fail(a, b)
+
+            res = res[a]
+            return (float(res[self.kind]) ** -1) * amt
+        except (KeyError, TypeError) as e:
+            raise ValueError(str(e))
+
+    def _fail(self, a, b):
+        raise ValueError('{}/{}'.format(a, b))
+
+register_ticker('ba', 'The BitcoinAverage ticker (built-in)',
+                BitcoinAverageTicker('https://api.bitcoinaverage.com/ticker/all'))