Ignoring specifc routes in express

[Pondidum]

Is it possible to configure the ExpressInstrumentation to not write any spans which concern a specific route handler?

For example, I have a healthcheck endpoint, and don't want to see the results in the telemetry (either at all, or, ideally, just health check failures).

I have tried using this in my configuration:

registerInstrumentations({
  tracerProvider: provider,
  instrumentations: [
    new HttpInstrumentation(),
    new ExpressInstrumentation({
      ignoreLayers: ["request handler - /healthcheck"],
    }),
  ],
});

But that doesn't seem to do what I am after.
Thanks!

[vmarchaud]

You should use ignoreIncomingPaths on the http instrumentation instead, express only create span if there is a http one.

[Pondidum]

Oh! I never even thought to check that!

A modification to this works perfectly:

      new HttpInstrumentation({
        ignoreIncomingPaths: ["/healthcheck"],
      }),