@loopback/docs/site/apidocs/core.application.setupshutdown.md

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

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[Home](./index.md) &gt; [@loopback/core](./core.md) &gt; [Application](./core.application.md) &gt; [setupShutdown](./core.application.setupshutdown.md)

## Application.setupShutdown() method

Set up signals that are captured to shutdown the application

<b>Signature:</b>

```typescript
protected setupShutdown(): (signal: string) => Promise<void>;
```
<b>Returns:</b>

(signal: string) =&gt; Promise&lt;void&gt;