# ContextIdResolverFn

**Kind:** Type

**Source:** [`packages/core/helpers/context-id-factory.ts`](https://github.com/nestjs/nest/blob/master/packages/core/helpers/context-id-factory.ts#L17)

**Part of:** [Core](subsystem-packages-core)

## Definition

```ts
(info: HostComponentInfo) => ContextId
```