AWS SDK Version 3 for .NET
API Reference

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Container for the parameters to the CreateSizeConstraintSet operation. Creates a SizeConstraintSet. You then use UpdateSizeConstraintSet to identify the part of a web request that you want AWS WAF to check for length, such as the length of the User-Agent header or the length of the query string. For example, you can create a SizeConstraintSet that matches any requests that have a query string that is longer than 100 bytes. You can then configure AWS WAF to reject those requests.

To create and configure a SizeConstraintSet, perform the following steps:

  1. Use GetChangeToken to get the change token that you provide in the ChangeToken parameter of a CreateSizeConstraintSet request.

  2. Submit a CreateSizeConstraintSet request.

  3. Use GetChangeToken to get the change token that you provide in the ChangeToken parameter of an UpdateSizeConstraintSet request.

  4. Submit an UpdateSizeConstraintSet request to specify the part of the request that you want AWS WAF to inspect (for example, the header or the URI) and the value that you want AWS WAF to watch for.

For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide.

Inheritance Hierarchy


Namespace: Amazon.WAFRegional.Model
Assembly: AWSSDK.WAFRegional.dll
Version: 3.x.y.z


public class CreateSizeConstraintSetRequest : AmazonWAFRegionalRequest

The CreateSizeConstraintSetRequest type exposes the following members



Public Property ChangeToken System.String

Gets and sets the property ChangeToken.

The value returned by the most recent call to GetChangeToken.

Public Property Name System.String

Gets and sets the property Name.

A friendly name or description of the SizeConstraintSet. You can't change Name after you create a SizeConstraintSet.


The following example creates size constraint set named MySampleSizeConstraintSet.

To create a size constraint

var response = client.CreateSizeConstraintSet(new CreateSizeConstraintSetRequest 
    ChangeToken = "abcd12f2-46da-4fdb-b8d5-fbd4c466928f",
    Name = "MySampleSizeConstraintSet"

string changeToken = response.ChangeToken;
SizeConstraintSet sizeConstraintSet = response.SizeConstraintSet;


Version Information

.NET Standard:
Supported in: 1.3

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms