ADD: Add client to auth request

Author: threecgreen

databento/live/gateway.py

@@ -12,6 +12,7 @@
 from databento_dbn import SType
 
 from databento.common.enums import Dataset
+from databento.version import __version__
 
 
 logger = logging.getLogger(__name__)
@@ -108,6 +109,7 @@ class AuthenticationRequest(GatewayControl):
     encoding: Encoding = Encoding.DBN
     details: str | None = None
     ts_out: str = "0"
+    client: str = f"Python {__version__}"
 
 
 @dataclasses.dataclass

tests/test_live_gateway_messages.py

@@ -9,6 +9,7 @@
 from databento.live.gateway import Greeting
 from databento.live.gateway import SessionStart
 from databento.live.gateway import SubscriptionRequest
+from databento.version import __version__
 from databento_dbn import Encoding
 from databento_dbn import Schema
 from databento_dbn import SType
@@ -29,27 +30,29 @@
     "line, expected",
     [
         pytest.param(
-            "auth=abcd1234|dataset=GLBX.MDP3|encoding=json\n",
-            ("abcd1234", "GLBX.MDP3", "json", None, "0"),
+            f"auth=abcd1234|dataset=GLBX.MDP3|encoding=json|client=Python {__version__}\n",
+            ("abcd1234", "GLBX.MDP3", "json", None, "0", f"Python {__version__}"),
         ),
         pytest.param(
-            "auth=abcd1234|dataset=GLBX.MDP3|ts_out=1\n",
+            f"auth=abcd1234|dataset=GLBX.MDP3|ts_out=1|client=Python {__version__}\n",
             (
                 "abcd1234",
                 "GLBX.MDP3",
                 str(Encoding.DBN),
                 None,
                 "1",
+                f"Python {__version__}",
             ),
         ),
         pytest.param(
-            "auth=abcd1234|dataset=XNAS.ITCH\n",
+            f"auth=abcd1234|dataset=XNAS.ITCH|client=Python {__version__}\n",
             (
                 "abcd1234",
                 "XNAS.ITCH",
                 str(Encoding.DBN),
                 None,
                 "0",
+                f"Python {__version__}",
             ),
         ),
         pytest.param(
@@ -73,6 +76,7 @@ def test_parse_authentication_request(
             msg.encoding,
             msg.details,
             msg.ts_out,
+            msg.client,
         ) == expected
     else:
         with pytest.raises(expected):
@@ -87,15 +91,15 @@ def test_parse_authentication_request(
                 auth="abcd1234",
                 dataset=Dataset.GLBX_MDP3,
             ),
-            b"auth=abcd1234|dataset=GLBX.MDP3|encoding=dbn|ts_out=0\n",
+            f"auth=abcd1234|dataset=GLBX.MDP3|encoding=dbn|ts_out=0|client=Python {__version__}\n".encode(),
         ),
         pytest.param(
             AuthenticationRequest(
                 auth="abcd1234",
                 dataset=Dataset.XNAS_ITCH,
                 ts_out="1",
             ),
-            b"auth=abcd1234|dataset=XNAS.ITCH|encoding=dbn|ts_out=1\n",
+            f"auth=abcd1234|dataset=XNAS.ITCH|encoding=dbn|ts_out=1|client=Python {__version__}\n".encode(),
         ),
     ],
 )