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

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[Home](./index.md) &gt; [@loopback/service-proxy](./service-proxy.md) &gt; [ServiceProxyMetadata](./service-proxy.serviceproxymetadata.md) &gt; [dataSource](./service-proxy.serviceproxymetadata.datasource.md)

## ServiceProxyMetadata.dataSource property

<b>Signature:</b>

```typescript
dataSource?: juggler.DataSource;
```