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chore (docs): update Langfuse instrumentation setup for Next.js 15 #4233

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15 changes: 1 addition & 14 deletions content/providers/05-observability/langfuse.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -65,27 +65,14 @@ Now you need to register this exporter via the OpenTelemetry SDK.
<Tabs items={["Next.js","Node.js"]}>
<Tab>

Next.js has experimental support for OpenTelemetry instrumentation on the framework level. Learn more about it in the [Next.js OpenTelemetry guide](https://nextjs.org/docs/app/building-your-application/optimizing/open-telemetry).
Next.js has support for OpenTelemetry instrumentation on the framework level. Learn more about it in the [Next.js OpenTelemetry guide](https://nextjs.org/docs/app/building-your-application/optimizing/open-telemetry).

Install dependencies:

```bash
npm install @vercel/otel langfuse-vercel @opentelemetry/api-logs @opentelemetry/instrumentation @opentelemetry/sdk-logs
```

Enable the `instrumentationHook` in your `next.config.js`:

```ts filename="next.config.js" highlight="4"
/** @type {import('next').NextConfig} */
const nextConfig = {
experimental: {
instrumentationHook: true,
},
};

module.exports = nextConfig;
```

Add `LangfuseExporter` to your instrumentation:

```ts filename="instrumentation.ts" highlight="7"
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