@loopback/docs/site/apidocs/health.healthcomponent._constructor_.md

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

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[Home](./index.md) &gt; [@loopback/health](./health.md) &gt; [HealthComponent](./health.healthcomponent.md) &gt; [(constructor)](./health.healthcomponent._constructor_.md)

## HealthComponent.(constructor)

Constructs a new instance of the `HealthComponent` class

**Signature:**

```typescript
constructor(application: Application, healthConfig?: HealthConfig);
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

application


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

[Application](./core.application.md)


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


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

healthConfig


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

[HealthConfig](./health.healthconfig.md)


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

_(Optional)_


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