Partial mux tracing

[appiepollo14]

Hi,

In this beautiful example, the whole mux server is being traced. I'm trying to find out how to do partial tracing, meaning, selected endpoints to be traced and not /health / ready. Does anyone have a gist or an example how to do this with mux?

Kind regards, Asjer

[dmathieu]

You can do this using the WithFilter option.
Something like this:

handler := otelhttp.NewHandler(mux, "/", otelhttp.WithFilter(func(r *http.Request) bool {
  if (r.URL.Path == "/health" || r.URL.Path == "/ready") {
    return false
  }

  return true
})

[appiepollo14]

Perfect, thank you!