Breadcrumbs

What they are

A breadcrumb is one step in a short trail: a navigation, an HTTP call, or a custom label you send. The trail is attached to the error event and shown on the issue.

Example trail on an issue.

Types

Type	Use for	name	value
route	navigation	e.g. pathname	/checkout
request	HTTP calls	e.g. API [POST]	URL; optional status and duration (ms)
common	anything else	short label	detail

On an issue

Each event can carry up to 24 breadcrumbs (oldest drop first). Use them to see the path to the crash — which page, which request failed, what the user did last.

Keep values small: paths and short labels, not request bodies or tokens.

In the SDK

Network fetch / XHR are recorded automatically after init. Routes and custom steps need addBreadcrumb. API and hooks: SDK → Breadcrumbs.