Executing code at the edge of the cloud

AWS Lambda@Edge is a feature that allows functions to execute at the edge of the cloud in response to CloudFront events. This capability opens some interesting opportunities to control, modify, and generate content at the edge of the cloud with extremely low latency. I think we are only just beginning to uncover the potential use cases that can be implemented with this new feature. This recipe demonstrates the association of a bare-bones function with a CloudFront distribution. The function responds with an Unauthorized (403) status code when an authorization header is not present in the request.

How to do it...

1. Create the project from the following template:

$ sls create --template...