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# CachedURLResponse

A cached response to a URL request.

```
class CachedURLResponse
```

## Overview

A [`CachedURLResponse`](/documentation/Foundation/CachedURLResponse) object provides the server’s response metadata in the form of a [`URLResponse`](/documentation/Foundation/URLResponse) object, along with an [NSData](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/PropertyLists/OldStylePlists/OldStylePLists.html#//apple_ref/doc/uid/20001012-47169) object containing the actual cached content data. Its storage policy determines whether the response should be cached on disk, in memory, or not at all.

Cached responses also contain a user info dictionary where you can store app-specific information about the cached item.

The [`URLCache`](/documentation/Foundation/URLCache) class stores and retrieves instances of [`CachedURLResponse`](/documentation/Foundation/CachedURLResponse).

## Topics

### Creating a cached URL response

[`init(response:data:)`](/documentation/Foundation/CachedURLResponse/init(response:data:))

Creates a cached URL response instance.

[`init(response:data:userInfo:storagePolicy:)`](/documentation/Foundation/CachedURLResponse/init(response:data:userInfo:storagePolicy:))

Creates a cached URL response with a given server response, data, user-info dictionary, and storage policy.

### Getting cached URL response properties

[`data`](/documentation/Foundation/CachedURLResponse/data)

The cached response’s data.

[`response`](/documentation/Foundation/CachedURLResponse/response)

The URL response object associated with the instance.

[`storagePolicy`](/documentation/Foundation/CachedURLResponse/storagePolicy)

The cached response’s storage policy.

[`userInfo`](/documentation/Foundation/CachedURLResponse/userInfo)

The cached response’s user info dictionary.

### Setting cache storage policies

[`URLCache.StoragePolicy`](/documentation/Foundation/URLCache/StoragePolicy)

These constants specify the caching strategy used by an [`CachedURLResponse`](/documentation/Foundation/CachedURLResponse) object.


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