Unable to setup custom OpenTelemetry with @sentry/bun. Docs are lacking info

[markwitt1]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/bun

SDK Version

9.38.0

Framework Version

No response

Link to Sentry event

No response

Reproduction Example/SDK Setup

const sentryClient = Sentry.init({
	// enabled: process.env.NODE_ENV === "production",
	dsn: SENTRY_DSN,
	environment: process.env.ENVIRONMENT,
	integrations: [],
	tracesSampleRate: 1.0,
	// @ts-expect-error
	skipOpenTelemetrySetup: true,
});
if (!Sentry.isEnabled()) console.warn("Sentry is not enabled");

const provider = new NodeTracerProvider({
	sampler: sentryClient ? new SentrySampler(sentryClient) : undefined,
	spanProcessors: [new SentrySpanProcessor()],
});

provider.addSpanProcessor(new SentrySpanProcessor());

provider.register({
	// Ensure trace propagation works
	// This relies on the SentrySampler for correct propagation
	propagator: new SentryPropagator(),
	// Ensure context & request isolation are correctly managed
	contextManager: new Sentry.SentryContextManager(),
});
// Validate that the setup is correct
Sentry.validateOpenTelemetrySetup();

Steps to Reproduce

I tried to follow the documentations https://docs.sentry.io/platforms/javascript/guides/express/opentelemetry/custom-setup/ and https://docs.sentry.io/platforms/javascript/guides/bun/migration/v7-to-v8/v8-opentelemetry/ but especially the one for bun is lacking info, like where to get the imports from. Also skipOpenTelemetrySetup doesn't exist in the bun sdk

Expected Result

I am trying to do custom OpenTelemetry setup so that I can enable Sentry for error tracking but use langfuse for LLM tracing

Actual Result

Type errors

[mydea]

Hey, thanks for writing in. Yeah, the type is not exposed there, this we can/should fix for sure. Other than this, is this working for you (except for the type error)? We have not really tested this yet, but we could/should def. expose docs for this then!

[markwitt1]

I am not sure how to check this, but it seems like it is not working, as Langfuse is not working until I completely remove Sentry

[andreiborza]

@markwitt1 could you provide a small reproduction repo please to help chase this down?