generateState function
Implementation
String generateState({int length = 32}) {
const String chars =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
final Random random = Random.secure();
return List.generate(length, (index) => chars[random.nextInt(chars.length)])
.join();
}