---
lang: en
title: 'API docs: authentication.userprofile.id'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
permalink: /doc/en/lb4/apidocs.authentication.userprofile.id.html
---

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[Home](./index.md) &gt; [@loopback/authentication](./authentication.md) &gt; [UserProfile](./authentication.userprofile.md) &gt; [id](./authentication.userprofile.id.md)

## UserProfile.id property

<b>Signature:</b>

```typescript
id: string;
```