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# AWS::ElasticLoadBalancingV2::ListenerRule QueryStringConfig
<a name="aws-properties-elasticloadbalancingv2-listenerrule-querystringconfig"></a>

Information about a query string condition.

The query string component of a URI starts after the first '?' character and is terminated by either a '\#' character or the end of the URI. A typical query string contains key/value pairs separated by '&' characters. The allowed characters are specified by RFC 3986. Any character can be percentage encoded.

## Syntax
<a name="aws-properties-elasticloadbalancingv2-listenerrule-querystringconfig-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-elasticloadbalancingv2-listenerrule-querystringconfig-syntax.json"></a>

```
{
  "[Values](#cfn-elasticloadbalancingv2-listenerrule-querystringconfig-values)" : {{[ QueryStringKeyValue, ... ]}}
}
```

### YAML
<a name="aws-properties-elasticloadbalancingv2-listenerrule-querystringconfig-syntax.yaml"></a>

```
  [Values](#cfn-elasticloadbalancingv2-listenerrule-querystringconfig-values): {{
    - QueryStringKeyValue}}
```

## Properties
<a name="aws-properties-elasticloadbalancingv2-listenerrule-querystringconfig-properties"></a>

`Values`  <a name="cfn-elasticloadbalancingv2-listenerrule-querystringconfig-values"></a>
The key/value pairs or values to find in the query string. The maximum length of each string is 128 characters. The comparison is case insensitive. The following wildcard characters are supported: \* (matches 0 or more characters) and ? (matches exactly 1 character). To search for a literal '\*' or '?' character in a query string, you must escape these characters in `Values` using a '\\' character.  
If you specify multiple key/value pairs or values, the condition is satisfied if one of them is found in the query string.  
*Required*: No  
*Type*: Array of [QueryStringKeyValue](aws-properties-elasticloadbalancingv2-listenerrule-querystringkeyvalue.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)