---
lang: en
title: 'API docs: express.expressmiddlewareinterceptorprovider.middlewareconfig'
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.expressmiddlewareinterceptorprovider.middlewareconfig.html
---

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[Home](./index.md) &gt; [@loopback/express](./express.md) &gt; [ExpressMiddlewareInterceptorProvider](./express.expressmiddlewareinterceptorprovider.md) &gt; [middlewareConfig](./express.expressmiddlewareinterceptorprovider.middlewareconfig.md)

## ExpressMiddlewareInterceptorProvider.middlewareConfig property

<b>Signature:</b>

```typescript
protected middlewareConfig?: CFG;
```