[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [SelfDescribingEvent](./browser-tracker.selfdescribingevent.md) ## SelfDescribingEvent interface A Self Describing Event A custom event type, allowing for an event to be tracked using your own custom schema and a data object which conforms to the supplied schema Signature: ```typescript interface SelfDescribingEvent> ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [event](./browser-tracker.selfdescribingevent.event.md) | SelfDescribingJson<T> | The Self Describing JSON which describes the event |