@loopback/docs/site/apidocs/authentication-jwt.refreshtokenconstants.md

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---
lang: en
title: 'API docs: authentication-jwt.refreshtokenconstants'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
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editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/authentication-jwt
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[Home](./index.md) &gt; [@loopback/authentication-jwt](./authentication-jwt.md) &gt; [RefreshTokenConstants](./authentication-jwt.refreshtokenconstants.md)

## RefreshTokenConstants namespace

Constant values used when generating refresh token.

**Signature:**

```typescript
export declare namespace RefreshTokenConstants 
```

## Variables

<table><thead><tr><th>

Variable


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

[REFRESH\_EXPIRES\_IN\_VALUE](./authentication-jwt.refreshtokenconstants.refresh_expires_in_value.md)


</td><td markdown="1">

The default expiration time for refresh token.


</td></tr>
<tr><td markdown="1">

[REFRESH\_ISSUER\_VALUE](./authentication-jwt.refreshtokenconstants.refresh_issuer_value.md)


</td><td markdown="1">

The default issuer used when generating refresh token.


</td></tr>
<tr><td markdown="1">

[REFRESH\_SECRET\_VALUE](./authentication-jwt.refreshtokenconstants.refresh_secret_value.md)


</td><td markdown="1">

The default secret used when generating refresh token.


</td></tr>
</tbody></table>