How to enrich traces with data from scoped service?

[BogdanGirnyk]

Hi, I want to enrich traces with data related to current user.
I've tried Enriching Processor as described here.
The issue is that the Processors are registered in DI as a singletons so there is no suitable way to inject user data that is scoped.
Could you advice the correct way to implement this task?

[cijothomas]

Have you looked at using the Enrich option provided by the instrumentation libraries?

[BogdanGirnyk]

All instrumentation Readme's state that:
Processor, is the general extensibility point to add additional properties to any activity. The Enrich option is specific to instrumentation.
Beside of that, there is no way to inject custom service to instrumentation libraries enrichers. We can operate only with library-specific objects(e. g. SqlCommand for OpenTelemetry.Instrumentation.SqlClient)