So I've pinged Google with my site XML sitemap with this HTTP request:
The response was OK "Sitemap Notification Received. Your Sitemap has been successfully added to our list of Sitemaps to crawl. If this is the first time you are notifying Google about this Sitemap, please add it via http://www.google.com/webmasters/tools/ so you can track its status. Please note that we do not add all submitted URLs to our index, and we cannot make any predictions or guarantees about when or if they will appear."
However if I login to Google webmasters tools I see the emptiness in the Sitemap files section:
I should make a note that I pinged Google firs time just about two days ago. The second note is that shortly after the ping (several hours or so) the first page of my site appears in the Google search results (it is root page, which is not in the sitemap by the way).
So the question is: should I keep waiting or I need to add XML-sitemap file to Google webmasters tools manually?