snowplow/snowplow-javascript-tracker

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[Home](./index.md) &gt; [@snowplow/node-tracker](./node-tracker.md) &gt; [ContextGenerator](./node-tracker.contextgenerator.md)

## ContextGenerator type

A context generator is a user-supplied callback that is evaluated for each event to allow an additional context to be dynamically attached to the event

<b>Signature:</b>

```typescript
type ContextGenerator = (args?: ContextEvent) => SelfDescribingJson | SelfDescribingJson[] | undefined;
```