public ActionResult<ToDoItem> GetToDoItem(long? id)
{
if (id == null)
{
return BadRequest(new Dictionary<string, string>() { { "message", "Id is required" } });
}
long id_NotNull = id.Value;
var target_ToDoItem = _service.GetToDoItemById(id_NotNull);
if (target_ToDoItem == null)
{
return NotFound(new Dictionary<string, string>() { { "message", $"Can't find {id}" } });
}
return Ok(target_ToDoItem);
}