Can we get separate AspNetCore metrics for each Controller-Action?

[musaul]

I'm using OpenTelemetry.Instrumentation.AspNetCore version 1.0.0-rc9.1, and using the default AspNetCore metrics (i.e. AddOpenTelemetryMetrics ... AddAspNetCoreInstrumentation) I get separate histograms for each http flavour, scheme, and status-code combination. This seems to be based on the tags in HttpInMetricsListener.cs.

Is there currently (or in the plan) any way of adding more tags to add more dimensions to the metrics, or just get completely seperate sets of metrics. Ideally, as the title suggests, I'd like separate histograms for each Controller Action. If there is a way to add the http.uri tag/dimension, then that could also work as a stop-gap.

[alanwest]

There is an open issue for adding additional dimensions which may satisfy your use case #3083.