---
lang: en
title: 'API docs: http-caching-proxy.proxyoptions'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
permalink: /doc/en/lb4/apidocs.http-caching-proxy.proxyoptions.html
---

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

## ProxyOptions interface

<b>Signature:</b>

```typescript
export interface ProxyOptions 
```

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [cachePath](./http-caching-proxy.proxyoptions.cachepath.md) | <code>string</code> | Directory where to keep the cached snapshots. |
|  [port](./http-caching-proxy.proxyoptions.port.md) | <code>number</code> | The port where the HTTP proxy should listen at. Default: 0 (let the system pick a free port) |
|  [ttl](./http-caching-proxy.proxyoptions.ttl.md) | <code>number</code> | How long to keep snapshots before making a new request to the backend. The value is in milliseconds.<!-- -->Default: one day |


