---
lang: en
title: 'API docs: authentication-passport'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/extensions/authentication-passport
permalink: /doc/en/lb4/apidocs.authentication-passport.html
---

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[Home](./index.md) &gt; [@loopback/authentication-passport](./authentication-passport.md)

## authentication-passport package

[@loopback/authentication-passport](https://github.com/strongloop/loopback-next/tree/master/extensions/authentication-passport)

## Classes

|  Class | Description |
|  --- | --- |
|  [StrategyAdapter](./authentication-passport.strategyadapter.md) | Adapter class to invoke passport-strategy 1. provides express dependencies to the passport strategies 2. provides shimming of requests for passport authentication 3. provides life-cycle similar to express to the passport-strategy 4. provides state methods to the strategy instance see: https://github.com/jaredhanson/passport |


