snowplow/snowplow-javascript-tracker

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[Home](./index.md) &gt; [@snowplow/node-tracker](./node-tracker.md) &gt; [CorePlugin](./node-tracker.coreplugin.md) &gt; [contexts](./node-tracker.coreplugin.contexts.md)

## CorePlugin.contexts property

Called when constructing the context for each event Useful for adding additional context to events

<b>Signature:</b>

```typescript
contexts?: () => SelfDescribingJson[];
```