Data Client

README.rst

@@ -77,23 +77,37 @@ converted to use Asynchronous Context Managers. See examples in the Async sectio
 `depth cache <https://python-binance.readthedocs.io/en/latest/depth_cache.html>`_ docs.
 
 Quick Start
------------
+--------------------
 
 `Register an account with Binance <https://accounts.binance.com/en/register?ref=10099792>`_.
 
 `Generate an API Key <https://www.binance.com/en/my/settings/api-management>`_ and assign relevant permissions.
 
-If you are using an exchange from the US, Japan or other TLD then make sure pass `tld='us'` when creating the
-client.
 
-To use the `Spot <https://testnet.binance.vision/>`_ or `Vanilla Options <https://testnet.binanceops.com/>`_ Testnet,
-pass `testnet=True` when creating the client.
+Installation
+--------------------
 
+Install the package:
 
 .. code:: bash
 
     pip install python-binance
 
+Optionally install with extra dependencies, for example to interface with pandas dataframes:
+
+.. code:: bash
+
+    pip install python-binance[extras]
+
+
+Code Example
+--------------------
+
+If you are using an exchange from the US, Japan or other TLD then make sure pass `tld='us'` when creating the
+client.
+
+To use the `Spot <https://testnet.binance.vision/>`_ or `Vanilla Options <https://testnet.binanceops.com/>`_ Testnet,
+pass `testnet=True` when creating the client.
 
 .. code:: python
 
@@ -181,7 +195,7 @@ pass `testnet=True` when creating the client.
 For more `check out the documentation <https://python-binance.readthedocs.io/en/latest/>`_.
 
 Async Example
--------------
+--------------------
 
 Read `Async basics for Binance <https://sammchardy.github.io/binance/2021/05/01/async-binance-basics.html>`_
 for more information.
@@ -258,8 +272,36 @@ for more information.
         loop.run_until_complete(main())
 
 
+
+
+
+
+DataFrame Example
+--------------------
+
+If you would like to work with response data in :code:`pandas.DataFrame` format, use the :code:`DataClient` class instead of the :code:`Client`, and invoke the desired method as you would normally do:
+
+.. code:: python
+
+    from binance.data_client import DataClient
+    from binance.enums import KLINE_INTERVAL_1MINUTE
+
+    client = DataClient(api_key, api_secret)
+
+    df = client.get_historical_klines(
+        symbol="BNBBTC",
+        interval=KLINE_INTERVAL_1MINUTE,
+        start_str="1st March 2018"
+    )
+    print(type(df)) #> <class 'pandas.core.frame.DataFrame'>
+    print(df.columns.tolist()) #> ['open_time', 'open', 'high', 'low', 'close', 'volume', 'close_time', 'quote_asset_volume', 'number_of_trades', 'taker_buy_base_asset_volume', 'taker_buy_quote_asset_volume', 'ignore']
+
+
+Note: this requires you to install with the "extras" option.
+
+
 Donate
-------
+--------------------
 
 If this library helped you out feel free to donate.
 
@@ -269,7 +311,7 @@ If this library helped you out feel free to donate.
 - BTC: 1Dknp6L6oRZrHDECRedihPzx2sSfmvEBys
 
 Other Exchanges
----------------
+--------------------
 
 If you use `Binance Chain <https://testnet.binance.org/>`_ check out my `python-binance-chain <https://github.com/sammchardy/python-binance-chain>`_ library.
 

binance/data_client.py

@@ -0,0 +1,10 @@
+from pandas import DataFrame
+
+from binance.client import Client
+from binance.enums import KLINES_RESPONSE_COLUMNS
+
+class DataClient(Client):
+
+    def get_historical_klines(self, **args):
+        klines = super().get_historical_klines(**args)
+        return DataFrame(klines, columns=KLINES_RESPONSE_COLUMNS)

binance/enums.py

@@ -62,6 +62,14 @@
 MARGIN_BUY_TYPE = 'MARGIN_BUY'
 AUTO_REPAY_TYPE = 'AUTO_REPAY'
 
+# the names of klines response columns, in exact order
+# https://github.com/binance-us/binance-official-api-docs/blob/master/rest-api.md#klinecandlestick-data
+KLINES_RESPONSE_COLUMNS = [
+    'open_time', 'open', 'high', 'low', 'close', 'volume', 'close_time',
+    'quote_asset_volume', 'number_of_trades',
+    'taker_buy_base_asset_volume', 'taker_buy_quote_asset_volume',
+    'ignore'
+]
 
 class HistoricalKlinesType(Enum):
     SPOT = 1

conftest.py

@@ -0,0 +1,102 @@
+
+import pytest
+import requests_mock
+
+from binance.client import Client
+from binance.data_client import DataClient
+from binance.enums import KLINE_INTERVAL_1MINUTE
+
+
+@pytest.fixture(scope="module")
+def client():
+    """Returns a client to use for testing purposes"""
+    return Client("api_key", "api_secret")
+
+@pytest.fixture(scope="module")
+def data_client():
+    """Returns a data client to use for testing purposes"""
+    return DataClient("api_key", "api_secret")
+
+
+#
+# KLINES RESPONSE DATA
+#
+
+
+klines_row_1 = [
+    1500004800000,
+    "0.00005000",
+    "0.00005300",
+    "0.00001000",
+    "0.00004790",
+    "663152.00000000",
+    1500004859999,
+    "30.55108144",
+    43,
+    "559224.00000000",
+    "25.65468144",
+    "83431971.04346950",
+]
+
+klines_row_2 = [
+    1519892340000,
+    "0.00099400",
+    "0.00099810",
+    "0.00099400",
+    "0.00099810",
+    "4806.04000000",
+    1519892399999,
+    "4.78553253",
+    154,
+    "1785.14000000",
+    "1.77837524",
+    "0",
+]
+
+url_1 = "https://api.binance.com/api/v3/klines?interval=1m&limit=1&startTime=0&symbol=BNBBTC"
+url_2 = "https://api.binance.com/api/v3/klines?interval=1m&limit=1000&startTime=1519862400000&symbol=BNBBTC"
+url_3 = "https://api.binance.com/api/v3/klines?interval=1m&limit=1000&startTime=1519892400000&symbol=BNBBTC"
+
+response_1 = [klines_row_1]
+response_2 = [klines_row_2 for _ in range(0,500)]
+response_3 = []
+
+@pytest.fixture(scope="module")
+def historical_klines_response(client):
+    with requests_mock.mock() as mock:
+        mock.get(url_1, json=response_1)
+        mock.get(url_2, json=response_2)
+        mock.get(url_3, json=response_3)
+
+        klines = client.get_historical_klines(
+            symbol="BNBBTC",
+            interval=KLINE_INTERVAL_1MINUTE,
+            start_str="1st March 2018"
+        )
+        #print(klines)
+        return klines
+
+@pytest.fixture(scope="module")
+def historical_klines_response_df(data_client):
+    with requests_mock.mock() as mock:
+        mock.get(url_1, json=response_1)
+        mock.get(url_2, json=response_2)
+        mock.get(url_3, json=response_3)
+
+        klines = data_client.get_historical_klines(
+            symbol="BNBBTC",
+            interval=KLINE_INTERVAL_1MINUTE,
+            start_str="1st March 2018"
+        )
+        #print(klines)
+        return klines
+
+@pytest.fixture(scope="module")
+def klines(historical_klines_response):
+    """Alias method"""
+    return historical_klines_response
+
+@pytest.fixture(scope="module")
+def klines_df(historical_klines_response_df):
+    """Alias method"""
+    return historical_klines_response_df

extra-requirements.txt

@@ -0,0 +1 @@
+pandas

setup.py

@@ -33,6 +33,9 @@
     install_requires=[
         'requests', 'six', 'dateparser', 'aiohttp', 'ujson', 'websockets==9.1'
     ],
+    extras_require = {
+        'extras': ['pandas']
+    },
     keywords='binance exchange rest api bitcoin ethereum btc eth neo',
     classifiers=[
         'Intended Audience :: Developers',

tests/test_data_client.py

@@ -0,0 +1,10 @@
+
+from pandas import DataFrame
+
+from binance.enums import KLINES_RESPONSE_COLUMNS
+
+
+def test_historical_klines(klines_df):
+        assert len(klines_df) == 500
+        assert isinstance(klines_df, DataFrame)
+        assert klines_df.columns.tolist() == KLINES_RESPONSE_COLUMNS

tests/test_historical_klines.py

@@ -9,64 +9,9 @@
 client = Client("api_key", "api_secret")
 
 
-def test_exact_amount():
+def test_exact_amount(klines):
     """Test Exact amount returned"""
-
-    first_available_res = [
-        [
-            1500004800000,
-            "0.00005000",
-            "0.00005300",
-            "0.00001000",
-            "0.00004790",
-            "663152.00000000",
-            1500004859999,
-            "30.55108144",
-            43,
-            "559224.00000000",
-            "25.65468144",
-            "83431971.04346950",
-        ]
-    ]
-
-    first_res = []
-    row = [
-        1519892340000,
-        "0.00099400",
-        "0.00099810",
-        "0.00099400",
-        "0.00099810",
-        "4806.04000000",
-        1519892399999,
-        "4.78553253",
-        154,
-        "1785.14000000",
-        "1.77837524",
-        "0",
-    ]
-
-    for i in range(0, 500):
-        first_res.append(row)
-
-    second_res = []
-
-    with requests_mock.mock() as m:
-        m.get(
-            "https://api.binance.com/api/v3/klines?interval=1m&limit=1&startTime=0&symbol=BNBBTC",
-            json=first_available_res,
-        )
-        m.get(
-            "https://api.binance.com/api/v3/klines?interval=1m&limit=1000&startTime=1519862400000&symbol=BNBBTC",
-            json=first_res,
-        )
-        m.get(
-            "https://api.binance.com/api/v3/klines?interval=1m&limit=1000&startTime=1519892400000&symbol=BNBBTC",
-            json=second_res,
-        )
-        klines = client.get_historical_klines(
-            symbol="BNBBTC", interval=Client.KLINE_INTERVAL_1MINUTE, start_str="1st March 2018"
-        )
-        assert len(klines) == 500
+    assert len(klines) == 500
 
 
 def test_start_and_end_str():