[ericwaller]

This is a great insight for full applications.

But latency (mostly) aside, there seem to be a lot interesting use cases for what is more or less programmable CDN configuration. Particularly when you have a relatively straightforward application (architecturally at least), but want to tap into the very distributed, very scalable CDN layer for little bits of critical functionality.

[k__]

This.

I used Lambda@Edge last week to smooth some rough edges between CloudFront and S3.

S3 is just a HTTP server for CloudFront and S3 in itself is a rather dumb HTTP server. Lambda@Edge allowed me to add some additional features to that integration to make S3 a bit more bearable, like automatic index files and path cleanups.