isTelegramProfileUrl method

FieldValidator<String?, String?> isTelegramProfileUrl({
  1. MessageCallBack<String>? message,
  2. String? userName,
})

Check string is telegram profile url

Implementation

FieldValidator<String?, String?> isTelegramProfileUrl({
  MessageCallBack<String>? message,
  String? userName,
}) {
  return next((messages, value) {
    if (value != null && !value.isTelegramProfileUrl(userName: userName)) {
      return message?.call(messages, value) ??
          messages.invalidTelegramProfileUrl(userName ?? 'empty');
    }
    return null;
  });
}