This is an excellent write-up and a great use-case for what S3+Lambda can do. As AWS offerings go, I believe Lambda has a <i>tremendous</i> upside and will be growing significantly over the next few years.<p>I&#x27;ve been throwing a lot of my own personal resources into building some things on top of both S3 and lambda and have found a few tools that help with it quite a bit. For one - the lambduh project from Russ Matney has been a great resource for abstracting out some of the more common s3-&gt;lambda workflow: <a href="https:&#x2F;&#x2F;github.com&#x2F;lambduh&#x2F;lambduh" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;lambduh&#x2F;lambduh</a>. On a different note is T.J. Holowaychuk&#x27;s Apex project: <a href="https:&#x2F;&#x2F;medium.com&#x2F;@tjholowaychuk&#x2F;introducing-apex-800824ffaa70" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;@tjholowaychuk&#x2F;introducing-apex-800824ffa...</a>