Simple Caching in AWS Lambda Functions

Simple Caching in AWS Lambda Functions

We process quite a large amount of webhooks from online SAAS applications at Rewind. Webhooks are triggered for us by the web apps we backup whenever something changes (ie. in a Shopify store, if an item changes we receive a webhook for the item). When we receive the...
Adding an HTTP Audit Log to a Ruby Application

Adding an HTTP Audit Log to a Ruby Application

Application logs are awesome. A user just started backing up their store? Nice! Logger.info. An error just happened in the system? Boo! Logger.error. A well-written application-level log can greatly help debug issues and allow you to follow along with what is...
Feature Flagging in Ruby Using EightBall

Feature Flagging in Ruby Using EightBall

Your team is working on a revolutionary new feature. It’s a very exciting time at work, but you know that, no matter how many precautions you put in place and how many tests you write, introducing a brand new feature to the production environment always carries at...
Automatic CloudFront Invalidation for S3 Origins

Automatic CloudFront Invalidation for S3 Origins

Welcome to the first post on the Rewind engineering blog.  We’re hoping to share some of the interesting technology problems we’re solving and solutions we’ve come up with. To kick things off, here’s a small solution to a common problem – automatically forcing a...