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

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [DefaultKeyValueRepository](./repository.defaultkeyvaluerepository.md) &gt; [ttl](./repository.defaultkeyvaluerepository.ttl.md)

## DefaultKeyValueRepository.ttl() method

**Signature:**

```typescript
ttl(key: string, options?: Options): Promise<number>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  key | string |  |
|  options | [Options](./repository.options.md) | _(Optional)_ |

**Returns:**

Promise&lt;number&gt;