IAmazonWAFRegional.CreateSizeConstraintSet Method (CreateSizeConstraintSetRequest)

This is AWS WAF Classic documentation. For more information, see AWS WAF Classic in the developer guide.

For the latest version of AWS WAF, use the AWS WAFV2 API and see the AWS WAF Developer Guide. With the latest version, AWS WAF has a single set of endpoints for regional and global use.

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:

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

Note:

For .NET Core this operation is only available in asynchronous form. Please refer to CreateSizeConstraintSetAsync.

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

Syntax

public abstract CreateSizeConstraintSetResponse CreateSizeConstraintSet(
         CreateSizeConstraintSetRequest request
)

Parameters

request: Type: Amazon.WAFRegional.Model.CreateSizeConstraintSetRequest

Container for the necessary parameters to execute the CreateSizeConstraintSet service method.

Return Value

Type: CreateSizeConstraintSetResponse

The response from the CreateSizeConstraintSet service method, as returned by WAFRegional.

Exceptions

Exception	Condition
WAFDisallowedNameException	The name specified is invalid.
WAFInternalErrorException	The operation failed because of a system problem, even though the request was valid. Retry your request.
WAFInvalidAccountException	The operation failed because you tried to create, update, or delete an object by using an invalid account identifier.
WAFInvalidParameterException	The operation failed because AWS WAF didn't recognize a parameter in the request. For example: You specified an invalid parameter name. You specified an invalid value. You tried to update an object (ByteMatchSet, IPSet, Rule, or WebACL) using an action other than INSERT or DELETE. You tried to create a WebACL with a DefaultActionType other than ALLOW, BLOCK, or COUNT. You tried to create a RateBasedRule with a RateKey value other than IP. You tried to update a WebACL with a WafActionType other than ALLOW, BLOCK, or COUNT. You tried to update a ByteMatchSet with a FieldToMatchType other than HEADER, METHOD, QUERY_STRING, URI, or BODY. You tried to update a ByteMatchSet with a Field of HEADER but no value for Data. Your request references an ARN that is malformed, or corresponds to a resource with which a web ACL cannot be associated.
WAFLimitsExceededException	The operation exceeds a resource limit, for example, the maximum number of WebACL objects that you can create for an AWS account. For more information, see Limits in the AWS WAF Developer Guide.
WAFStaleDataException	The operation failed because you tried to create, update, or delete an object by using a change token that has already been used.

Examples

The following example creates size constraint set named MySampleSizeConstraintSet.

To create a size constraint


var client = new AmazonWAFRegionalClient();
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 Framework:
Supported in: 4.5 and newer, 3.5

IAmazonWAFRegional.CreateSizeConstraintSet (CreateSizeConstraintSetRequest)

Method