# QueryStringsConfigProperty

An object that determines whether any URL query strings in viewer requests (and if so, which query strings) are included in requests that CloudFront sends to the origin.

- Source: Generated code
- Type last changed: v2.93.0 · 23 Aug 2023

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_cloudfront as cloudfront } from 'aws-cdk-lib';
const queryStringsConfigProperty: cloudfront.CfnOriginRequestPolicy.QueryStringsConfigProperty = {
  queryStringBehavior: 'queryStringBehavior',

  // the properties below are optional
  queryStrings: ['queryStrings'],
};
```

## Properties

- `queryStringBehavior`: string (required) — Determines whether any URL query strings in viewer requests are included in requests that CloudFront sends to the origin.

  Valid values are:

  - `none` – No query strings in viewer requests are included in requests that CloudFront sends to the origin. Even when this field is set to `none` , any query strings that are listed in a `CachePolicy` *are* included in origin requests.
  - `whitelist` – Only the query strings in viewer requests that are listed in the `QueryStringNames` type are included in requests that CloudFront sends to the origin.
  - `all` – All query strings in viewer requests are included in requests that CloudFront sends to the origin.
  - `allExcept` – All query strings in viewer requests are included in requests that CloudFront sends to the origin, **except** for those listed in the `QueryStringNames` type, which are not included.

- `queryStrings`: string[] — Contains a list of query string names.