title: Telegram webhook: Is ssl mandatory?
body: <p>I want to know if SSL certificate and URL starting with <code>https://</code> is mandatory for webhook of a Telegram bot?
  As it noticed in <a href="https://core.telegram.org/bots/api#setwebhook" rel="nofollow">https://core.telegram.org/bots/api#setwebhook</a> it seems it is necessary, but I'm not sure about this.</p>