Facebook Messenger Webhook continuously sending messages
<p>I am learning to work with Facebook Messenger API. I have successfully setup a webhook, I have subscribe to the application. But when I send message to my Page I receive multiple instances of the same message like a burst.</p>

<p>I am storing messages which I send from my application when it is receive at the Webhook.</p>

<p>A view of my database look like in the screenshot below.</p>

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<p>I am guessing it may be because the message is still unread? Just a wild guess may be someone else know for sure. I tried exact example of the Facebook Office (Node) and it is happening there as well.</p>

<p>Thanks.</p>