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

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[Home](./index.md) &gt; [@loopback/authentication](./authentication.md) &gt; [registerAuthenticationStrategy](./authentication.registerauthenticationstrategy.md)

## registerAuthenticationStrategy() function

Registers an authentication strategy as an extension of the AuthenticationBindings.AUTHENTICATION\_STRATEGY\_EXTENSION\_POINT\_NAME extension point.

<b>Signature:</b>

```typescript
export declare function registerAuthenticationStrategy(context: Context, strategyClass: Constructor<AuthenticationStrategy>): Binding<unknown>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  context | [Context](./context.context.md) | Context object |
|  strategyClass | [Constructor](./context.constructor.md)<!-- -->&lt;[AuthenticationStrategy](./authentication.authenticationstrategy.md)<!-- -->&gt; | Class for the authentication strategy |

<b>Returns:</b>

[Binding](./context.binding.md)<!-- -->&lt;unknown&gt;