# createMetaReducer

## Syntax

```javascript
createMetaReducer([eventsMap | eventsMapper], target[, extensions]);
```

### Parameters

* `eventsMap | eventsMapper`: [eventsMap](https://rangle.gitbook.io/redux-beacon/index-1/events-map) | [eventsMapper](https://rangle.gitbook.io/redux-beacon/index-1/events-mapper)
* `target`: [target](https://rangle.gitbook.io/redux-beacon/index)
* `extensions` *(optional)*: [extensions](https://rangle.gitbook.io/redux-beacon/index-2).

### Return value

* [ngrx/store meta reducer](https://gist.github.com/btroncone/a6e4347326749f938510#implementing-a-meta-reducer)

## Usage

* [Getting Started](https://rangle.gitbook.io/redux-beacon/getting-started-ngrx-users)
* [Examples & Recipes](https://github.com/rangle/redux-beacon/tree/197992261c3e67a3c0dfe89926419ab98587d577/docs/recipes/index.md)