---
title: "Fastify"
description: "Adds performance instrumentation for Fastify. (default)"
url: https://docs.sentry.io/platforms/javascript/guides/fastify/configuration/integrations/fastify/
---

# Fastify | Sentry for Fastify

For more information on setting up Sentry Fastify support, see the [Fastify Sentry documentation](https://docs.sentry.io/platforms/javascript/guides/fastify.md).

This integration only works in the Node.js and Bun runtimes.

*Import name: `Sentry.fastifyIntegration`*

This integration is enabled by default when performance monitoring is enabled. If you'd like to modify your default integrations, read [this](https://docs.sentry.io/platforms/javascript/guides/fastify/configuration/integrations.md#modifying-default-integrations).

The `fastifyIntegration` adds instrumentation for the Fastify framework to capture spans using [`@opentelemetry/instrumentation-fastify`](https://www.npmjs.com/package/@opentelemetry/instrumentation-fastify).

```JavaScript
Sentry.init({
  integrations: [Sentry.fastifyIntegration()],
});
```

## [Supported Versions](https://docs.sentry.io/platforms/javascript/guides/fastify/configuration/integrations/fastify.md#supported-versions)

* `fastify`: `^3.0.0 || ^4.0.0`