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

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[Home](./index.md) &gt; [@loopback/authentication-jwt](./authentication-jwt.md) &gt; [RefreshTokenServiceBindings](./authentication-jwt.refreshtokenservicebindings.md) &gt; [DATASOURCE\_NAME](./authentication-jwt.refreshtokenservicebindings.datasource_name.md)

## RefreshTokenServiceBindings.DATASOURCE\_NAME variable

The backend datasource for refresh token's persistency.

**Signature:**

```typescript
DATASOURCE_NAME = "refreshdb"
```