@loopback/docs/site/apidocs/rest.restcomponent._constructor_.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: rest.restcomponent._constructor_'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
permalink: /doc/en/lb4/apidocs.rest.restcomponent._constructor_.html
---

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [RestComponent](./rest.restcomponent.md) &gt; [(constructor)](./rest.restcomponent._constructor_.md)

## RestComponent._constructor_

Constructs a new instance of the `RestComponent` class

<b>Signature:</b>

```typescript
constructor(app: Application, config?: RestComponentConfig);
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  app | <code>Application</code> |  |
|  config | <code>RestComponentConfig</code> |  |