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

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [RestServerResolvedOptions](./rest.restserverresolvedoptions.md) &gt; [listenOnStart](./rest.restserverresolvedoptions.listenonstart.md)

## RestServerResolvedOptions.listenOnStart property

Set this flag to `false` to not listen on connections when the REST server is started. It's useful to mount a LoopBack REST server as a route to the facade Express application. If not set, the value is default to `true`<!-- -->.

<b>Signature:</b>

```typescript
listenOnStart?: boolean;
```