FetchIntegration
Creates spans and attaches tracing headers to fetch requests in Cloudflare Workers. (default)
This integration only works inside the Cloudflare Workers runtime.
Import name: Sentry.fetchIntegration
This integration is enabled by default. If you want to disable it, you can modify your default integrations.
The fetchIntegration creates spans and attaches tracing headers to fetch requests in Cloudflare Workers.
Sentry.init({
integrations: [Sentry.fetchIntegration()],
});
Type: boolean
If set to false, no breadcrumbs will be captured.
Type: (url: string) => boolean
Allows you to define a method to determine whether or not to create spans to track outgoing requests to the given URL. By default, spans will be created for all outgoing requests.
Sentry.init({
integrations: [
Sentry.fetchIntegration({
shouldCreateSpanForRequest: (url) => {
// Only create spans for external API calls
return url.includes('api.example.com');
},
}),
],
});
The fetch integration automatically instruments all fetch() calls made within your Cloudflare Worker. This includes:
- Creating performance spans for outgoing HTTP requests
- Adding tracing headers to continue distributed traces
- Capturing breadcrumbs for debugging purposes
- Tracking request duration and response status
The integration works with both the standard fetch() API and any libraries that use fetch under the hood.
Note: If you need to disable fetch instrumentation for specific requests, use the shouldCreateSpanForRequest option to filter out unwanted requests.
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").