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

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[Home](./index.md) &gt; [@loopback/graphql](./graphql.md) &gt; [GraphQLTags](./graphql.graphqltags.md) &gt; [MIDDLEWARE](./graphql.graphqltags.middleware.md)

## GraphQLTags.MIDDLEWARE variable

Tag for GraphQL middleware bindings

**Signature:**

```typescript
MIDDLEWARE = "graphql.middleware"
```