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

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[Home](./index.md) &gt; [@loopback/extension-health](./extension-health.md)

## extension-health package

[@loopback/extension-health](https://github.com/strongloop/loopback-next/tree/master/packages/extension-health)

## Classes

|  Class | Description |
|  --- | --- |
|  [HealthComponent](./extension-health.healthcomponent.md) | A component providing health status |

## Namespaces

|  Namespace | Description |
|  --- | --- |
|  [HealthBindings](./extension-health.healthbindings.md) | Binding keys used by this component. |
|  [HealthTags](./extension-health.healthtags.md) | Binding tags for health related services |

## Variables

|  Variable | Description |
|  --- | --- |
|  [DEFAULT\_HEALTH\_OPTIONS](./extension-health.default_health_options.md) |  |

## Type Aliases

|  Type Alias | Description |
|  --- | --- |
|  [HealthConfig](./extension-health.healthconfig.md) | Configuration for health component with optional properties |
|  [HealthOptions](./extension-health.healthoptions.md) | Options for health component |
|  [LiveCheck](./extension-health.livecheck.md) | Functions for liveness check |
|  [ReadyCheck](./extension-health.readycheck.md) | Functions for readiness check |


