@loopback/docs/site/apidocs/rest.bindelementprovider.action.md

Documentation for LoopBack 4

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

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [BindElementProvider](./rest.bindelementprovider.md) &gt; [action](./rest.bindelementprovider.action.md)

## BindElementProvider.action() method

<b>Signature:</b>

```typescript
action(key: string): Binding;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  key | <code>string</code> |  |

<b>Returns:</b>

`Binding`