@loopback/docs/site/apidocs/repository.hasmanythroughdefinition.keyfrom.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: repository.hasmanythroughdefinition.keyfrom'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/repository
permalink: /doc/en/lb4/apidocs.repository.hasmanythroughdefinition.keyfrom.html
---

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [HasManyThroughDefinition](./repository.hasmanythroughdefinition.md) &gt; [keyFrom](./repository.hasmanythroughdefinition.keyfrom.md)

## HasManyThroughDefinition.keyFrom property

The foreign key in the source model, e.g. Customer\#id.

<b>Signature:</b>

```typescript
keyFrom: string;
```