@loopback/docs/site/apidocs/rest.toexpresspath.md

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---
lang: en
title: 'API docs: rest.toexpresspath'
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.toexpresspath.html
---

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[Home](./index.md) &gt; [@loopback/rest](./rest.md) &gt; [toExpressPath](./rest.toexpresspath.md)

## toExpressPath() function

Convert an OpenAPI path to Express (path-to-regexp) style

**Signature:**

```typescript
export declare function toExpressPath(path: string): string;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

path


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

string


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

OpenAPI path with optional variables as `{var}`


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

**Returns:**

string