Error handling around return statement

API/function_app.py

@@ -14,7 +14,7 @@
 import logging
 from datetime import datetime
 from azure_openai import InteractWithOpenAI
-
+import aiohttp  
 
 
 # Initialisierung der Funktion App
@@ -88,9 +88,14 @@ async def chat(req: func.HttpRequest) -> func.HttpResponse:
         logging.info(f"Chat-Endpoint came back: Response: {http_status}: {response}")
 
     logging.info("InteractWithOpenAI() Context left, About to Return data to Caller!"  )
+    # Ensure the response is a string encoded in UTF-8
+    response_body = response.encode('utf-8').decode('utf-8')
 
-    return func.HttpResponse(response, status_code=http_status,  headers={"Content-Type": "text/plain"})
-
+    try:
+        return func.HttpResponse(response_body, status_code=http_status, headers={"Content-Type": "text/plain; charset=utf-8"})
+    except Exception as e:
+        logging.error(f"Error returning the response: {e}")
+        return func.HttpResponse("Internal server error", status_code=500)
 
 # Ping- und Status-Endpunkte, noch zu implementieren
 # Ggf. separate Parameter-Klassen für Ping und Status implementieren