public async Task <ActionResult <ToDoListResponse> > CreateOrUpdate(string identity, [FromBody] ToDoListRequest request)
{
var list = await _repository.GetListByIdentity(identity);
if (list == null)
{
var record = await _repository.CreateList(ParseList(identity, request));
return(CreatedAtRoute("GetListByIdentity", new { identity }, ProjectList(record)));
}
else if (list.LastUpdateDateTime < request.UpdateDateTime)
{
ParseOntoList(request, list);
await _repository.SaveChanges();
}
return(ProjectList(list));
}
