WITH LOGS

app.py

@@ -30,7 +30,11 @@ def epoch_to_ist_time(epoch_seconds):
 def fetch_stock_data(ticker, date):
     """Fetch stock data from Groww API and return simplified JSON"""
     
+    debug_log = []
+    
     # Validate date format
+    debug_log.append(f"[DEBUG] Input - Ticker: {ticker}, Date: {date}")
+    
     if not validate_date_format(date):
         return "Error: Please enter date in dd-mm-yyyy format"
     
@@ -39,12 +43,16 @@ def fetch_stock_data(ticker, date):
         return "Error: Please enter a valid ticker symbol"
     
     ticker = ticker.strip().upper()
+    debug_log.append(f"[DEBUG] Cleaned Ticker: {ticker}")
     
     try:
         # Calculate start and end timestamps
         start_millis = convert_to_unix_millis(date, "00:05")
         end_millis = convert_to_unix_millis(date, "23:55")
         
+        debug_log.append(f"[DEBUG] Start Time (IST 00:05): {start_millis} ms")
+        debug_log.append(f"[DEBUG] End Time (IST 23:55): {end_millis} ms")
+        
         # Construct API URL
         url = f"https://groww.in/v1/api/charting_service/v4/chart/exchange/NSE/segment/CASH/{ticker}"
         params = {
@@ -53,18 +61,36 @@ def fetch_stock_data(ticker, date):
             "startTimeInMillis": start_millis
         }
         
+        # Full URL with parameters
+        full_url = f"{url}?endTimeInMillis={end_millis}&intervalInMinutes=1&startTimeInMillis={start_millis}"
+        debug_log.append(f"[DEBUG] Full API URL: {full_url}")
+        
         # Make API request
+        debug_log.append("[DEBUG] Making API request...")
         response = requests.get(url, params=params, timeout=10)
         
+        debug_log.append(f"[DEBUG] Response Status Code: {response.status_code}")
+        debug_log.append(f"[DEBUG] Response Headers: {dict(response.headers)}")
+        
         # Check if request was successful
         if response.status_code != 200:
-            return "Invalid ticker or no data available for the given date."
+            debug_log.append(f"[DEBUG] Response Body: {response.text[:500]}")
+            return "\n".join(debug_log) + "\n\n[ERROR] Invalid ticker or no data available for the given date."
+        
+        debug_log.append(f"[DEBUG] Response Content Length: {len(response.text)} bytes")
         
         data = response.json()
+        debug_log.append(f"[DEBUG] Response JSON Keys: {list(data.keys())}")
         
         # Check if candles data exists
         if "candles" not in data or not data["candles"]:
-            return "Invalid ticker or no data available for the given date."
+            debug_log.append("[DEBUG] No 'candles' key found or candles array is empty")
+            debug_log.append(f"[DEBUG] Full Response: {json.dumps(data, indent=2)[:1000]}")
+            return "\n".join(debug_log) + "\n\n[ERROR] Invalid ticker or no data available for the given date."
+        
+        debug_log.append(f"[DEBUG] Number of candles received: {len(data['candles'])}")
+        debug_log.append(f"[DEBUG] First candle sample: {data['candles'][0]}")
+        debug_log.append(f"[DEBUG] Last candle sample: {data['candles'][-1]}")
         
         # Process candles data
         simplified_data = []
@@ -79,15 +105,23 @@ def fetch_stock_data(ticker, date):
                 "open": opening_price
             })
         
-        # Return as JSON string
-        return json.dumps(simplified_data, indent=2)
+        debug_log.append(f"[DEBUG] Successfully processed {len(simplified_data)} candles")
+        debug_log.append("\n" + "="*50 + "\n[SUCCESS] DATA OUTPUT:\n" + "="*50 + "\n")
+        
+        # Return debug log + JSON string
+        return "\n".join(debug_log) + "\n" + json.dumps(simplified_data, indent=2)
     
     except requests.exceptions.Timeout:
-        return "Error: Request timed out. Please try again."
+        debug_log.append("[DEBUG] Request timed out")
+        return "\n".join(debug_log) + "\n\n[ERROR] Request timed out. Please try again."
     except requests.exceptions.RequestException as e:
-        return "Invalid ticker or no data available for the given date."
+        debug_log.append(f"[DEBUG] Request Exception: {type(e).__name__} - {str(e)}")
+        return "\n".join(debug_log) + "\n\n[ERROR] Invalid ticker or no data available for the given date."
     except Exception as e:
-        return f"Error: An unexpected error occurred - {str(e)}"
+        debug_log.append(f"[DEBUG] Unexpected Exception: {type(e).__name__} - {str(e)}")
+        import traceback
+        debug_log.append(f"[DEBUG] Traceback:\n{traceback.format_exc()}")
+        return "\n".join(debug_log) + "\n\n[ERROR] An unexpected error occurred"
 
 # Create Gradio interface
 with gr.Blocks(title="Groww Stock Data Fetcher") as app: