OpenResty: a Swiss Army Proxy for Serverless; WAL, Slack, Zapier and Auth — Futurice

A while ago I started writing an identity aware proxy (IAP) to secure a binary with authentication. However, what started as a minimal auth layer has grown with features. What I have come to appreciate is that the reverse proxy is a great layer to do a variety of cross-cutting concerns like auth, at-least-once delivery and adapting. Furthermore, I have found OpenResty provides amazing performance and flexibility, AND it fits the serverless paradigm almost perfectly.