.

app.py

@@ -14,6 +14,8 @@ headers = {
 def respond(message, history, system_message, max_tokens, temperature, top_p):
     if system_message is not None:
         messages = [{"role": "system", "content": system_message}]
+    else:
+        messages = []
     
     for human, assistant in history:
         messages.append({"role": "user", "content": human})
@@ -29,12 +31,25 @@ def respond(message, history, system_message, max_tokens, temperature, top_p):
         "top_p": top_p
     }
     
-    response = requests.post(API_URL, headers=headers, json=data)
+    try:
+        response = requests.post(API_URL, headers=headers, json=data)
+        response.raise_for_status()  # Raises an HTTPError for bad responses
+        
+        response_json = response.json()
+        
+        if 'choices' in response_json and len(response_json['choices']) > 0:
+            return response_json['choices'][0]['message']['content']
+        else:
+            return f"Error: Unexpected response format. Full response: {response_json}"
     
-    if response.status_code == 200:
-        return response.json()['choices'][0]['message']['content']
-    else:
-        return f"Error: {response.status_code} - {response.text}"
+    except requests.exceptions.RequestException as e:
+        return f"Error: {str(e)}"
+    except ValueError as e:
+        return f"Error: Invalid JSON response. {str(e)}"
+    except KeyError as e:
+        return f"Error: Unexpected response structure. Missing key: {str(e)}"
+    except Exception as e:
+        return f"Unexpected error: {str(e)}"
 
 demo = gr.ChatInterface(
     respond,