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

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[Home](./index.md) &gt; [@loopback/extension-health](./extension-health.md) &gt; [HealthTags](./extension-health.healthtags.md) &gt; [READY\_CHECK](./extension-health.healthtags.ready_check.md)

## HealthTags.READY\_CHECK variable

Binding tag for readiness check functions

<b>Signature:</b>

```typescript
READY_CHECK = "health.readyCheck"
```

