Update app2.py

app2.py

@@ -389,7 +389,17 @@ def generate_qr(json_data):
     
     return interface
 
-def main():
+import qrcode  # Import the qrcode library
+
+def generate_qr(json_data):
+    """Generate QR code from JSON data and return the file path."""
+    if json_data:
+        qr = qrcode.make(json_data)
+        qr_path = f"output/qr_code_{int(time.time())}.png"
+        qr.save(qr_path)
+        return qr_path
+    return None
+
     # Configure system settings
     mimetypes.init()