Recently we built a prototype for the replacement of a simple HTTP service with API Gateway and Lambda instead of classic nginx and WSGI apps on EC2.<p>It is very promising technology (even if I'm not totally buying into the serverless idea yet) but the cost of API Gateway considering a significant load on the service was prohibitive. I would really like someone to prove us wrong and see if we missed something in our analysis. Until then, I find that this is usable only for relatively low traffic services.