[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Tracer](https://evolu.dev/docs/api-reference/common/Tracer) › TracerConfig

Defined in: [packages/common/src/Tracer.ts:47](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Tracer.ts#L47)

Configuration for tracing.

## Properties

<a id="tracing"></a>

### tracing?

```ts
readonly optional tracing?: Ref<boolean>;
```

Defined in: [packages/common/src/Tracer.ts:49](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Tracer.ts#L49)

When `true`, enables trace data collection. Can be toggled at runtime.