@loopback/docs/site/apidocs/repository.isbsontype.md

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---
lang: en
title: 'API docs: repository.isbsontype'
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.isbsontype.html
---

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[Home](./index.md) &gt; [@loopback/repository](./repository.md) &gt; [isBsonType](./repository.isbsontype.md)

## isBsonType() function

Checks if the value is BsonType (mongodb) It uses a general way to check the type ,so that it can detect different versions of bson that might be used in the code base. Might need to update in the future.

<b>Signature:</b>

```typescript
export declare function isBsonType(value: unknown): value is object;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  value | unknown |  |

<b>Returns:</b>

value is object