---
lang: en
title: 'API docs: rest.openapispecform.format'
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.openapispecform.format.html
---

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [OpenApiSpecForm](./rest.openapispecform.md) &gt; [format](./rest.openapispecform.format.md)

## OpenApiSpecForm.format property

**Signature:**

```typescript
format?: string;
```