public async Task <Updated <TodoItem> > UpdateAsync(long id, TodoItem todoItem)
{
if (todoItem is null)
{
throw new ArgumentNullException(nameof(todoItem));
}
if (todoItem.Id != id)
{
return(Updated.Invalid);
}
_todoContext.Entry(todoItem).State = EntityState.Modified;
try
{
await _todoContext.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!TodoItemExists(id))
{
return(Updated.NotFound);
}
throw;
}
return(Updated.Accepted(todoItem));
}