Update comment

langgraph.json

@@ -6,8 +6,5 @@
   },
   "http": {
     "app": "./src/langgraph_slack/server.py:APP"
-  },
-  "auth": {
-    "path": "./src/langgraph_slack/auth.py:auth"
   }
 }

src/langgraph_slack/auth.py

@@ -1,12 +0,0 @@
-from langgraph_sdk import Auth
-
-
-auth = Auth()
-
-
-@auth.authenticate
-async def authenticate(request, path, headers, method):
-    user_agent = headers.get(b"user-agent")
-    if user_agent and user_agent.startswith(b"Slackbot"):
-        return {"identity": "default-user", "permissions": ["read", "write"]}
-    return None

src/langgraph_slack/config.py

@@ -19,5 +19,5 @@ else:
 LANGGRAPH_URL = environ.get("LANGGRAPH_URL")
 ASSISTANT_ID = environ.get("LANGGRAPH_ASSISTANT_ID", "chat")
 CONFIG = environ.get("CONFIG") or "{}"
-DEPLOYMENT_URL = environ.get("DEPLOYMENT_URL", "")
+DEPLOYMENT_URL = environ.get("DEPLOYMENT_URL")
 SLACK_CHANNEL_ID = environ.get("SLACK_CHANNEL_ID")

src/langgraph_slack/server.py

@@ -14,6 +14,7 @@ from slack_bolt.async_app import AsyncApp
 from langgraph_slack import config
 
 LOGGER = logging.getLogger(__name__)
+# Defaults to "None", meaning the loopback endpoint.
 LANGGRAPH_CLIENT = get_client(url=config.LANGGRAPH_URL)
 GRAPH_CONFIG = (
     json.loads(config.CONFIG) if isinstance(config.CONFIG, str) else config.CONFIG