if yes then how am i suppose to access the diffrent strings inside data specifically in the dart sdk
TL;DR
Yes, you can send a list of strings or multiple strings in the data section of req.payload. However, you need to send them as a string and use the `jsonDecode` function in Dart to access the different strings inside the data. Here is the link to the `jsonDecode` function in the Flutter SDK: https://api.flutter.dev/flutter/dart-convert/jsonDecode.html