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Anyone already using Ktor 3 in production? I'm unable to migrate from Ktor 2 to 3 due to the lack of Koin support

Yes we’re using it in production at <https://highbeam.co/|Highbeam>, and I know <https://www.airtrail.co/|Air Trail> is too!

We use Guice for dependency injection though, with some nice Kotlin wrappers

Nice! Did you notice any improvements to the application performance as shared in the blogs?

See <https://kotlinlang.slack.com/archives/C67HDJZ2N/p1730270926716919>

<https://github.com/InsertKoinIO/koin/issues/1716>

We have yet to run a formal performance test since the migration, so I’m not sure :slightly_smiling_face:

edit: p50 response times are down ~15% and memory usage and CPU are the same.. But we upgraded several other libraries at the same time so I can’t conclusively trace that back to Ktor 3.0

Another library that breaks with Ktor 3 is Open Telemetry Ktor instrumentation library

It relies on Routing.RoutingCallStarted which no longer exists in Ktor 3

Try <#C0255B8KX7W|> with the new anvil library for it... it can inject functions