# HeaderMatch
<a name="API_HeaderMatch"></a>

Describes the constraints for a header match. Matches incoming requests with rule based on request header value before applying rule action.

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

 ** match **   <a name="vpclattice-Type-HeaderMatch-match"></a>
The header match type.  
Type: [HeaderMatchType](API_HeaderMatchType.md) object  
 **Note: **This object is a Union. Only one member of this object can be specified or returned.  
Required: Yes

 ** name **   <a name="vpclattice-Type-HeaderMatch-name"></a>
The name of the header.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Required: Yes

 ** caseSensitive **   <a name="vpclattice-Type-HeaderMatch-caseSensitive"></a>
Indicates whether the match is case sensitive.  
Type: Boolean  
Required: No

## See Also
<a name="API_HeaderMatch_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/vpc-lattice-2022-11-30/HeaderMatch) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/vpc-lattice-2022-11-30/HeaderMatch) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/vpc-lattice-2022-11-30/HeaderMatch)