[BUG] Opentelemetry tracing context not propagated since new version

[max-peroch]

Tapir version: 1.11.19

Scala version: 2.13.16

Hi there,

As mentioned on #4418 , the module tapir-opentelemetry-tracing v1.11.18 was successfully adding and propagating traces to a htt4s server using Otel4s. Bumping the version to v1.11.19 breaks the propagation.

Here is a minimal reproduction repository: https://github.com/max-peroch/tapir-opentelemetry-tracing-issue-repro

That being said, I might be doing something wrong. I also see #4428 that is around the corner and could be an alternative for my use case?

Thanks!

[adamw]

I think if this worked with cats-effect, it's more by accident ;). The current interceptor will only work with direct-style, or Futures when using the otel agent. As you write, the otel4s one is the way to go