Update app.py

app.py

@@ -203,7 +203,7 @@ async def handle_message(message: cl.Message):
             bestillingskode = re.search(booking_pattern, user_message).group(0)
             question = f"Retrieve information for booking ID {bestillingskode}"
 
-            response = await api_chain.ainvoke(
+            response = await api_chain.acall(                           # ~ainvoke
                 {
                     "url": endpoint_url,
                     "method": "POST",
@@ -219,7 +219,7 @@ async def handle_message(message: cl.Message):
                 callbacks=[cl.AsyncLangchainCallbackHandler()],
             )
         else:
-            response = await llm_chain.ainvoke(user_message, callbacks=[cl.AsyncLangchainCallbackHandler()])
+            response = await llm_chain.acall(user_message, callbacks=[cl.AsyncLangchainCallbackHandler()])
 
         response_key = "output" if "output" in response else "text"
         await cl.Message(response.get(response_key, "")).send()