Registering new collectors with GunicornInternalPrometheusMetrics

[gmelasecca]

Hello. I am unsure if this is the right place to ask this question but I was wondering about how we can utilize the GunicornInternalPrometheusMetrics class while also being able to register custom metrics defined as a class. Similar to the examples that prometheus_client provide in their docs here: custom-collectors in prometheus-client

the reason I am asking about this is because I need to define a couple of custom collectors for specific use cases and if this is simple enough I wont try to hack around it (my specific use case has no bearing on the question itself). I am already using the register_defults() method but it is not the same as me allowing customers/users to build their Collector() classes and import them into our application without modifying our existing code hence why I am asking to allow a custom collector to be registered to the GunicornInternalPrometheusMetrics app & registry.

thank you for any help. ps. I am loving how simple you have made this library to work with so far.

[rycus86]

Hi,

Yep, that should work as expected, though let me know if you find otherwise. As mentioned in the https://github.com/rycus86/prometheus_flask_exporter#configuration we use the default REGISTRY when you don't specify it manually, and if you add the custom collectors to a custom registry, then just make sure to pass that to the PrometheusMetrics constructor.

I am loving how simple you have made this library to work with so far.

Thanks, I'm glad you find it easy to use!