@loopback/docs/site/apidocs/context-explorer.contextgraph._constructor_.md

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

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[Home](./index.md) &gt; [@loopback/context-explorer](./context-explorer.md) &gt; [ContextGraph](./context-explorer.contextgraph.md) &gt; [(constructor)](./context-explorer.contextgraph._constructor_.md)

## ContextGraph.(constructor)

Constructs a new instance of the `ContextGraph` class

**Signature:**

```typescript
constructor(ctx: JSONObject, options?: ContextGraphOptions);
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

ctx


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

[JSONObject](./context.jsonobject.md)


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


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

options


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

[ContextGraphOptions](./context-explorer.contextgraphoptions.md)


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

_(Optional)_


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