This is a perfect use for Lambda (i.e., low-traffic, once-off tasks that don't require a full server), or at least this would be a good fit if not for immaturit

This is a perfect use for Lambda (i.e., low-traffic, once-off tasks that don't require a full server), or at least this would be a good fit if not for immaturity issues like missing WWW-Authenticate. But Lambda at scale is very expensive. A 100 request/second would cost more than $1,500/month, when even a single nano server could easily service that kind of load all by itself. Back of napkin analysis: https://twitter.com/JamiesonBecker/status/802185522139582464 https://twitter.com/JamiesonBecker/status/802185522139582464 Lambda is great for tech demos, small or rare loads, triggered tasks, etc. Not so great as part of your core app pipeline.