Integrations

The Sentry SDK uses integrations to hook into the functionality of popular libraries to automatically instrument your application and give you the best data out of the box.

Integrations automatically add error instrumentation, performance instrumentation, and/or extra context information to your application. Some are enabled by default, but you can disable them or modify their settings.

The SvelteKit SDK initializes the SDK in two runtimes: Browser and Node.js. However, it's important to note that not all integrations are compatible with all of these runtimes.

Depending on whether an integration enhances the functionality of a particular runtime, such as the BrowserTracing integration for the browser runtime or the RequestData integration for the Node.js.js runtime, you can only include these integrations in their respective configuration files:

• For the browser runtime integrations, add integrations to Sentry.init in hooks.client.js
• For the Node.js runtime integrations, add integrations to Sentry.init in hooks.server.js

Common Integrations

Browser Integrations

Node.js Integrations

Modifying Default Integrations

To disable system integrations, set defaultIntegrations: false when calling init().

To override their settings, provide a new instance with your config to the integrations option. For example, to turn off browser capturing console calls:

Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",

  integrations: [
    Sentry.linkedErrorsIntegration({
      limit: 7,
    }),
  ],
});

Adding an Integration

You can add additional integrations in your init call:

import * as Sentry from "@sentry/browser";

Sentry.init({
  dsn: "https://examplePublicKey@o0.ingest.sentry.io/0",
  integrations: [Sentry.reportingObserverIntegration()],
});

Alternatively, you can add integrations via Sentry.addIntegration(). This is useful if you only want to enable an integration in a specific environment or if you want to load an integration later. For all other cases, we recommend you use the integrations option.

import * as Sentry from "@sentry/browser";

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

Sentry.addIntegration(Sentry.reportingObserverIntegration());

Lazy Loading Integrations

Lazy-loading lets you add pluggable integrations without increasing the initial bundle size. You can do this in two ways:

1. Dynamic Import (recommended)

You can add the integration with a dynamic import using import(). This method loads the integration from the npm package. To avoid running into issues with import(), you should use a bundler that supports dynamic imports. If you're using a tool like Vite for your project, the bundling process is probably already set up.

Sentry.init({
  // Note, Replay is NOT instantiated below:
  integrations: [],
});

// Sometime later
import("@sentry/sveltekit").then((lazyLoadedSentry) => {
  Sentry.addIntegration(lazyLoadedSentry.replayIntegration());
});

2. Load from CDN with lazyLoadIntegration()

You can also lazy-load pluggable integrations via Sentry.lazyLoadIntegration(). This will attempt to load the integration from the Sentry CDN. Note that this function will reject if it fails to load the integration from the Sentry CDN, which can happen if a user has an ad-blocker or if there's a network problem. You should always make sure that rejections are handled for this function in your application.

async function loadHttpClient() {
  const httpClientIntegration = await Sentry.lazyLoadIntegration(
    "httpClientIntegration",
  );
  Sentry.addIntegration(httpClientIntegration());
}

Lazy loading is available for the following integrations:

• replayIntegration
• replayCanvasIntegration
• feedbackIntegration
• feedbackModalIntegration
• feedbackScreenshotIntegration
• captureConsoleIntegration
• contextLinesIntegration
• linkedErrorsIntegration
• debugIntegration
• dedupeIntegration
• extraErrorDataIntegration
• httpClientIntegration
• reportingObserverIntegration
• rewriteFramesIntegration
• sessionTimingIntegration
• browserProfilingIntegration

Removing a Default Integration

If you only want to remove a single or some of the default integrations, instead of disabling all of them with defaultIntegrations: false, you can use the following syntax to filter out the ones you don't want.

This example removes the integration for adding breadcrumbs to the event, which is enabled by default:

Sentry.init({
  // ...
  integrations: function (integrations) {
    // integrations will be all default integrations
    return integrations.filter(function (integration) {
      return integration.name !== "Breadcrumbs";
    });
  },
});

Custom Integrations

You can also create custom integrations.

Available Integrations