otelgro

[pellared]

I noticed that the stats handler misses the functionality you added here: #2700. Any reasons for that?

I was plan to implement the stats.handler step by step, cover the trace first, and then cover the metrics. Which is also convenient for review.
Do you think I should implement it in this pr or create another pr for metrics?
I'm open for both way. @pellared

During the SIG meetings we discussed that we would like to have a feature-parity before we deprecate interceptors as part of #3002 (review).

Still I think we can tackle it in a separate PR.

Are there any other features which are missing when comparing with the interceptors?

I think metric is the only missing feature, since I wrote a simple e2e test TestStatsHandler just like interceptors to make sure the trace related function is complete.
@pellared

Originally posted by @fatsheep9146 in #3002 (comment)

[pellared]

Duplicates #4316