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

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[Home](./index.md) &gt; [@loopback/express](./express.md) &gt; [MiddlewareBindings](./express.middlewarebindings.md) &gt; [CONTEXT](./express.middlewarebindings.context.md)

## MiddlewareBindings.CONTEXT variable

Binding key for setting and injecting the http request context

<b>Signature:</b>

```typescript
CONTEXT: BindingKey<MiddlewareContext>
```