@loopback/docs/site/apidocs/context.contexteventobserver.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: context.contexteventobserver'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/context
permalink: /doc/en/lb4/apidocs.context.contexteventobserver.html
---

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [ContextEventObserver](./context.contexteventobserver.md)

## ContextEventObserver type

Context event observer type - An instance of `ContextObserver` or a function

<b>Signature:</b>

```typescript
export declare type ContextEventObserver = ContextObserver | ContextObserverFn;
```