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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) > [@loopback/rest](./rest.md) > [DefaultSequence](./rest.defaultsequence.md) > [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.
<b>Signature:</b>
```typescript
handle(context: RequestContext): Promise<void>;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| context | [RequestContext](./rest.requestcontext.md) | The request context: HTTP request and response objects, per-request IoC container and more. |
<b>Returns:</b>
Promise<void>