---
lang: en
title: 'API docs: http-caching-proxy.proxyoptions.port'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/http-caching-proxy
permalink: /doc/en/lb4/apidocs.http-caching-proxy.proxyoptions.port.html
---

<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[Home](./index.md) &gt; [@loopback/http-caching-proxy](./http-caching-proxy.md) &gt; [ProxyOptions](./http-caching-proxy.proxyoptions.md) &gt; [port](./http-caching-proxy.proxyoptions.port.md)

## ProxyOptions.port property

The port where the HTTP proxy should listen at. Default: 0 (let the system pick a free port)

**Signature:**

```typescript
port?: number;
```