@loopback/docs/site/apidocs/openapi-spec-builder.openapispecbuilder.withcomponents.md

Documentation for LoopBack 4

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

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[Home](./index.md) &gt; [@loopback/openapi-spec-builder](./openapi-spec-builder.md) &gt; [OpenApiSpecBuilder](./openapi-spec-builder.openapispecbuilder.md) &gt; [withComponents](./openapi-spec-builder.openapispecbuilder.withcomponents.md)

## OpenApiSpecBuilder.withComponents() method

Define a new ComponentsObject.

<b>Signature:</b>

```typescript
withComponents(spec: ComponentsObject | ComponentsSpecBuilder): this;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  spec | <code>ComponentsObject &#124; ComponentsSpecBuilder</code> | Specification of the components. |

<b>Returns:</b>

`this`