@opentelemetry/instrumentation-express doesnt correctly report all the spans with express 5.0 or >

[LRagji]

What version of OpenTelemetry are you using?

latest(ltgm docker image)

What version of Node are you using?

node 22 LTS

What did you do?

1. Clone the example for @opentelemetry/instrumentation-express
2. Run the run_test api route and verify spans are getting captured.(they show internal details like JSON parser, init etc)
3. Update express to 5.0 in package json, delete node modules and do npm i
4. Run the run_test api route.
5. You will find no spans are every recorded from @opentelemetry/instrumentation-express library

What did you expect to see?

Spans logged by @opentelemetry/instrumentation-express, with same details for middleware etc, but none are logged.

What did you see instead?

No Spans, apart from HTTP spans

Additional context

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[JamieDanielson]

Thanks for raising this issue @LRagji . It looks like the example app is actually out of date, and still using Express v4 with an older version of Express instrumentation. Support for Express v5 was added in instrumentation v0.49.0, and there are other changes possibly needed as well. In that case we will need to update the example accordingly.

[LRagji]

Thanks @JamieDanielson for prompt reply, so dose that mean if I take latest version of the library it will work? , cause I also tried with auto instrumentation zero code config one that too behaves the same way..