---
lang: en
title: 'API docs: rest.defaultsequence.handle'
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.defaultsequence.handle.html
---

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

## DefaultSequence.handle() method

Runs the default sequence. Given a handler context (request and response), running the sequence will produce a response or an error.

Default sequence executes these steps - Executes middleware for CORS, OpenAPI spec endpoints - Finds the appropriate controller method, swagger spec and args for invocation - Parses HTTP request to get API argument list - Invokes the API which is defined in the Application Controller - Writes the result from API into the HTTP response - Error is caught and logged using 'logError' if any of the above steps in the sequence fails with an error.

**Signature:**

```typescript
handle(context: RequestContext): Promise<void>;
```

## 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">

[RequestContext](./rest.requestcontext.md)


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

The request context: HTTP request and response objects, per-request IoC container and more.


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

**Returns:**

Promise&lt;void&gt;