---
lang: en
title: 'API docs: authentication.authmetadataprovider'
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.authmetadataprovider.html
---

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[Home](./index.md) &gt; [@loopback/authentication](./authentication.md) &gt; [AuthMetadataProvider](./authentication.authmetadataprovider.md)

## AuthMetadataProvider class

Provides authentication metadata of a controller method

**Signature:**

```typescript
export declare class AuthMetadataProvider implements Provider<AuthenticationMetadata[] | undefined> 
```
**Implements:** [Provider](./context.provider.md)<!-- -->&lt;[AuthenticationMetadata](./authentication.authenticationmetadata.md)<!-- -->\[\] \| undefined&gt;

## Example

`context.bind('authentication.operationMetadata').toProvider(AuthMetadataProvider)`

## Constructors

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Constructor


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Modifiers


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Description


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[(constructor)(controllerClass, methodName, options)](./authentication.authmetadataprovider._constructor_.md)


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Constructs a new instance of the `AuthMetadataProvider` class


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## Methods

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Method


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Modifiers


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Description


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[value()](./authentication.authmetadataprovider.value.md)


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