# QueryStringCacheKeys
<a name="API_QueryStringCacheKeys"></a>

This field is deprecated. We recommend that you use a cache policy or an origin request policy instead of this field.

If you want to include query strings in the cache key, use `QueryStringsConfig` in a cache policy. See `CachePolicy`.

If you want to send query strings to the origin but not include them in the cache key, use `QueryStringsConfig` in an origin request policy. See `OriginRequestPolicy`.

A complex type that contains information about the query string parameters that you want CloudFront to use for caching for a cache behavior.

## Contents
<a name="API_QueryStringCacheKeys_Contents"></a>

 ** Quantity **   <a name="cloudfront-Type-QueryStringCacheKeys-Quantity"></a>
The number of `whitelisted` query string parameters for a cache behavior.  
Type: Integer  
Required: Yes

 ** Items **   <a name="cloudfront-Type-QueryStringCacheKeys-Items"></a>
A list that contains the query string parameters that you want CloudFront to use as a basis for caching for a cache behavior. If `Quantity` is 0, you can omit `Items`.  
Type: Array of strings  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/cloudfront-2020-05-31/QueryStringCacheKeys) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/QueryStringCacheKeys) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudfront-2020-05-31/QueryStringCacheKeys) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon CloudFront. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query cloudfront` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).