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---
lang: en
title: 'API docs: context.notification'
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.notification.html
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->
[Home](./index.md) > [@loopback/context](./context.md) > [Notification](./context.notification.md)
## Notification interface
Event data for observer notifications
<b>Signature:</b>
```typescript
export interface Notification extends ContextEvent
```
<b>Extends:</b> [ContextEvent](./context.contextevent.md)
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [observers](./context.notification.observers.md) | Set<[ContextEventObserver](./context.contexteventobserver.md)<!-- -->> | A snapshot of observers when the original event is emitted |