Make chat_history only available for each session by invoking agent with unique session_hash

app.py

@@ -102,7 +102,7 @@ graph_builder.add_edge("generate", END)
 graph = graph_builder.compile(checkpointer=memory)
 # -----
 
-def bot(message, history, source_history) -> list[Any]:
+def bot(message, history, source_history, request: gr.Request) -> list[Any]:
     """Generate bot response and history from message.
     
     With multi-modal inputs text and each file is treated as separate message.
@@ -120,9 +120,11 @@ def bot(message, history, source_history) -> list[Any]:
         ingest_document(file, vector_store)
     
     # create text response
-    # TODO: see how state can be set in chat interface
     user_input_prompt = message.get("text")
-    config = {"configurable": {"thread_id": "abc123"}, "callbacks": [langfuse_handler], "stream": False}
+    current_session_id = request.session_hash
+    logger.info("This is the current session id", session_id=current_session_id)
+
+    config = {"configurable": {"thread_id": current_session_id}, "callbacks": [langfuse_handler], "stream": False}
 
     response = graph.invoke(
         {"messages": [{"role": "user", "content": user_input_prompt}]},