Example for "manually" pushing a metric about prometheus-fastapi-instrumentator

[trallnag]

Hey @trondhindenes, you can just use the Prometheus client library for that. Create a metric and increment it. I can post an example later.

This package is really just for getting metric from your FastAPI (how many requests, duration etc) and not a generic instrumentation library. Under the hood it does nothing more than creating a few a Prometheus metric and extractive relevant label data from requests and responses.

[trondhindenes]

thanks both - that makes total sense but mentioning in the docs would probably be valuable

[cbartz]

@trallnag You should mention in the documentation that one can use the Prometheus client library aside from your library, and that those metrics will be automatically exposed. starlette_exporter does mention this.

[trallnag]

I added a info to the README.md