@loopback/docs/site/apidocs/express.invokemiddlewareprovider.binding.md

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---
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title: 'API docs: express.invokemiddlewareprovider.binding'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
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[Home](./index.md) &gt; [@loopback/express](./express.md) &gt; [InvokeMiddlewareProvider](./express.invokemiddlewareprovider.md) &gt; [binding](./express.invokemiddlewareprovider.binding.md)

## InvokeMiddlewareProvider.binding property

Inject the binding so that we can access `extensionPoint` tag

<b>Signature:</b>

```typescript
protected binding: Binding<InvokeMiddleware>;
```