Telegram api send frequently message to our api
<p>I have a problem with telegram bot api.
when i was set webhook,then one of client send a photo to our bot and telegram api send frequently obejct of this photo to our api with the same update_id</p>

<p>this is answer from telegram support: 
<strong>most probably issue is that you are not answering with a "2XX" to our requests, so we are sending the same updete as we understand that it wasn't received.</strong></p>

<p>whats problem?!</p>