feat: WebClient/AsyncWebClient expose logger property

slack_sdk/web/async_base_client.py

@@ -88,6 +88,17 @@ def __init__(
             if env_variable is not None:
                 self.proxy = env_variable
 
+    # -------------------------
+    # accessors
+
+    @property
+    def logger(self) -> logging.Logger:
+        """The logger this client uses."""
+        return self._logger
+
+    # -------------------------
+    # api call
+
     async def api_call(
         self,
         api_method: str,

slack_sdk/web/base_client.py

@@ -92,6 +92,17 @@ def __init__(
             if env_variable is not None:
                 self.proxy = env_variable
 
+    # -------------------------
+    # accessors
+
+    @property
+    def logger(self) -> logging.Logger:
+        """The logger this client uses."""
+        return self._logger
+
+    # -------------------------
+    # api call
+
     def api_call(
         self,
         api_method: str,

tests/slack_sdk/web/test_web_client_issue_921_custom_logger.py

@@ -23,6 +23,23 @@ def test_if_it_uses_custom_logger(self):
         client.chat_postMessage(channel="C111", text="hello")
         self.assertTrue(logger.called)
 
+    def test_if_property_returns_custom_logger(self):
+        logger = CustomLogger("test-logger")
+        client = WebClient(
+            base_url="http://localhost:8888",
+            token="xoxb-api_test",
+            logger=logger,
+        )
+        self.assertEqual(client.logger, logger)
+
+    def test_logger_property_has_no_setter(self):
+        client = WebClient(
+            base_url="http://localhost:8888",
+            token="xoxb-api_test",
+        )
+        with self.assertRaises(AttributeError):
+            client.logger = CustomLogger("test-logger")
+
 
 class CustomLogger(Logger):
     called: bool

tests/slack_sdk_async/web/test_web_client_issue_921_custom_logger.py

@@ -25,6 +25,23 @@ async def test_if_it_uses_custom_logger(self):
         await client.chat_postMessage(channel="C111", text="hello")
         self.assertTrue(logger.called)
 
+    def test_if_property_returns_custom_logger(self):
+        logger = CustomLogger("test-logger")
+        client = AsyncWebClient(
+            base_url="http://localhost:8888",
+            token="xoxb-api_test",
+            logger=logger,
+        )
+        self.assertEqual(client.logger, logger)
+
+    def test_logger_property_has_no_setter(self):
+        client = AsyncWebClient(
+            base_url="http://localhost:8888",
+            token="xoxb-api_test",
+        )
+        with self.assertRaises(AttributeError):
+            client.logger = CustomLogger("test-logger")
+
 
 class CustomLogger(Logger):
     called: bool