---
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/strongloop/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

<b>Signature:</b>

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

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  ctx | [JSONObject](./context.jsonobject.md) |  |
|  options | [ContextGraphOptions](./context-explorer.contextgraphoptions.md) |  |