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

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [MiddlewareSequence](./rest.middlewaresequence.md) &gt; [(constructor)](./rest.middlewaresequence._constructor_.md)

## MiddlewareSequence.(constructor)

Constructor: Injects `InvokeMiddleware` and `InvokeMiddlewareOptions`

**Signature:**

```typescript
constructor(context: Context, invokeMiddleware: InvokeMiddleware, options?: InvokeMiddlewareOptions);
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

context


</td><td markdown="1">

[Context](./context.context.md)


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

invokeMiddleware


</td><td markdown="1">

InvokeMiddleware


</td><td markdown="1">

invoker for registered middleware in a chain. To be injected via RestBindings.INVOKE\_MIDDLEWARE\_SERVICE.


</td></tr>
<tr><td markdown="1">

options


</td><td markdown="1">

InvokeMiddlewareOptions


</td><td markdown="1">

_(Optional)_


</td></tr>
</tbody></table>