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

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[Home](./index.md) &gt; [@loopback/express](./express.md) &gt; [BaseMiddlewareRegistry](./express.basemiddlewareregistry.md)

## BaseMiddlewareRegistry class

Base Context that provides APIs to register middleware

**Signature:**

```typescript
export declare abstract class BaseMiddlewareRegistry extends BaseMiddlewareRegistry_base 
```
**Extends:** BaseMiddlewareRegistry\_base