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

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [uuid](./context.uuid.md)

## uuid() function

> Warning: This API is now obsolete.
> 
> Use `generateUniqueId`<!-- -->, \[uuid\](https://www.npmjs.com/package/uuid) or \[hyperid\](https://www.npmjs.com/package/hyperid) instead.
> 

A utility to generate uuid v4

**Signature:**

```typescript
export declare function uuid(): string;
```
**Returns:**

string