@loopback/docs/site/apidocs/rest.defaultsequence._constructor_.md

Documentation for LoopBack 4

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

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

## DefaultSequence.(constructor)

Constructor: Injects findRoute, invokeMethod &amp; logError methods as promises.

<b>Signature:</b>

```typescript
constructor(findRoute: FindRoute, parseParams: ParseParams, invoke: InvokeMethod, send: Send, reject: Reject);
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  findRoute | <code>FindRoute</code> | Finds the appropriate controller method, spec and args for invocation (injected via SequenceActions.FIND\_ROUTE). |
|  parseParams | <code>ParseParams</code> | The parameter parsing function (injected via SequenceActions.PARSE\_PARAMS). |
|  invoke | <code>InvokeMethod</code> | Invokes the method specified by the route (injected via SequenceActions.INVOKE\_METHOD). |
|  send | <code>Send</code> | The action to merge the invoke result with the response (injected via SequenceActions.SEND) |
|  reject | <code>Reject</code> | The action to take if the invoke returns a rejected promise result (injected via SequenceActions.REJECT). |