# CONTROLLER_ID_KEY

**Kind:** Constant

**Source:** [`packages/core/injector/constants.ts`](https://github.com/nestjs/nest/blob/master/packages/core/injector/constants.ts#L3)

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

## Definition

```ts
'CONTROLLER_ID'
```

## Value

```ts
'CONTROLLER_ID'
```