[how_gauche]

I've done this before (postgREST) for internal apps and it's amazing. You can POST a JSON file to the front end from a shell script with curl and have it show up on a Grafana dashboard immediately. I've used this in the past for setting up automated quality tests for machine learning pipelines -- the pipeline runs automatically and you get the results in a central place, so you can see how your quality metrics are trending over time.

Given that postgREST exists, I don't see any reason to talk to postgres directly from a JS app.