public async Task <ActionResult> GetUserLastPaidStudentFee([FromQuery] string ssn)
{
if (ssn == null)
{
return(BadRequest(new ArgumentNullException(nameof(ssn))));
}
var brisUser = await _repository.GetBrisUserBySsn(ssn);
if (brisUser == null)
{
return(NotFound());
}
return(Ok(new { LastPaidStudentFee = brisUser.LastPaidStudentFee }));
}