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

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

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [ContextViewEvent](./context.contextviewevent.md)

## ContextViewEvent interface

An event emitted by a `ContextView`

**Signature:**

```typescript
export interface ContextViewEvent<T> extends ContextEvent 
```
**Extends:** [ContextEvent](./context.contextevent.md)

## Properties

<table><thead><tr><th>

Property


</th><th>

Modifiers


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

[cachedValue?](./context.contextviewevent.cachedvalue.md)


</td><td markdown="1">


</td><td markdown="1">

T


</td><td markdown="1">

_(Optional)_ Optional cached value for an `unbind` event


</td></tr>
</tbody></table>