api-docs/docs/node-tracker/markdown/node-tracker.contextevent.eventschema.md
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[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [ContextEvent](./node-tracker.contextevent.md) > [eventSchema](./node-tracker.contextevent.eventschema.md)
## ContextEvent.eventSchema property
The event schema where one is available, or empty string
<b>Signature:</b>
```typescript
eventSchema: string;
```
## Example
'iglu:com.snowplowanalytics.snowplow/ad\_impression/jsonschema/1-0-0'