change in saving engine

app.py

@@ -15,6 +15,7 @@ def indexing(llm,path=None):
     query_engine = index.as_query_engine()
     print("all done")
     print(query_engine)
+    cl.user_session.set("engine", query_engine)
     return query_engine
 
 def qa(sp,engine,message):
@@ -59,7 +60,7 @@ async def factory():
         cl.user_session.set("sp", sp["output"])
     else:
         await cl.Message(author="Beast",content="Okay, then you can start asking your questions!!").send()
-    cl.user_session.set("engine", query_engine)
+    
     
     
 @cl.on_message
@@ -70,7 +71,7 @@ async def main(message: cl.Message):
     if sp==None:
         sp=""
     if not message.elements:
-        msg = cl.Message(author="Beast",content=f"Processing...", disable_feedback=False)
+        msg = cl.Message(author="Beast",content=f"Generating Response...", disable_feedback=False)
         await msg.send()
         response =await cl.make_async(qa)(sp,engine,message)
         print(response)
@@ -91,11 +92,12 @@ async def main(message: cl.Message):
             query_engine = await cl.make_async(indexing)(llm,pdf.path)
             msg.content = f"`{pdf.name}` processed."
             await msg.update()
+            msg = cl.Message(author="Beast",content=f"Generating Response...", disable_feedback=False)
+            await msg.send()
             response =await cl.make_async(qa)(sp,query_engine,message)
             print(response)
             msg.content = str(response)
-            msg.author="Beast"
-            await msg.send()
+            await msg.update()