Currently the performance/tracing SDK doesn't support instrumentation of any HTTP libraries. I was told over discord that the priority of this feature is unclear but that it's worth opening an issue here.

I use Faraday personally, and I've been made aware that sentry-ruby relies on it as well, so it seems like it could be a good place to start. I'm completely oblivious to how the instrumentation works so I'm not sure if it matters but Faraday is more of a client wrapper on different HTTP adapters (Net::HTTP being the default), so maybe the choice is which adapter to instrument rather than which client library. 🤷

Thanks for the hard work on the Ruby client and performance/tracing!