validateCredentials method
Probes credentials against SPH without persisting an account.
Implementation
Future<String> validateCredentials({
required int schoolId,
required String username,
required String password,
}) {
final account = ClearTextAccount(
localId: 0,
schoolID: schoolId,
schoolName: '',
username: username,
password: password,
);
return LanisSession.getLoginURL(account, _config);
}