How to Receive Push Notifications from AWS S3 to Rails App?
<p>Disclaimer, I'm a Rails newb. So I may be doing this wrong altogether.</p>

<p>I need to display the latest image in the view of a rails app immediately after it is uploaded to an AWS S3 bucket (from another source). Rather than repeatedly updating / polling for latest image, I think it'd be less taxing and costly to get a notification from AWS when a new image has been uploaded.  </p>

<p>I looked into SNS and it seems like perhaps an HTTP notification with the rails url as endpoint could be an option. But I'm not sure how to set that up. </p>

<p>Any ideas or suggestions? </p>