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

Documentation for LoopBack 4

---
lang: en
title: 'API docs: openapi-spec-builder.openapispecbuilder._constructor_'
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._constructor_.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; [(constructor)](./openapi-spec-builder.openapispecbuilder._constructor_.md)

## OpenApiSpecBuilder.(constructor)

Constructs a new instance of the `OpenApiSpecBuilder` class

<b>Signature:</b>

```typescript
constructor();
```