UpdateWebACL - AWS WAFV2

UpdateWebACL

Note

This is the latest version of AWS WAF, named AWS WAFV2, released in November, 2019. For information, including how to migrate your AWS WAF resources from the prior release, see the AWS WAF Developer Guide.

Updates the specified WebACL.

A Web ACL defines a collection of rules to use to inspect and control web requests. Each rule has an action defined (allow, block, or count) for requests that match the statement of the rule. In the Web ACL, you assign a default action to take (allow, block) for any request that does not match any of the rules. The rules in a Web ACL can be a combination of the types Rule, RuleGroup, and managed rule group. You can associate a Web ACL with one or more AWS resources to protect. The resources can be Amazon CloudFront, an Amazon API Gateway API, or an Application Load Balancer.

Request Syntax

{ "DefaultAction": { "Allow": { }, "Block": { } }, "Description": "string", "Id": "string", "LockToken": "string", "Name": "string", "Rules": [ { "Action": { "Allow": { }, "Block": { }, "Count": { } }, "Name": "string", "OverrideAction": { "Count": { }, "None": { } }, "Priority": number, "Statement": { "AndStatement": { "Statements": [ "Statement" ] }, "ByteMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "PositionalConstraint": "string", "SearchString": blob, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "GeoMatchStatement": { "CountryCodes": [ "string" ], "ForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string" } }, "IPSetReferenceStatement": { "ARN": "string", "IPSetForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string", "Position": "string" } }, "ManagedRuleGroupStatement": { "ExcludedRules": [ { "Name": "string" } ], "Name": "string", "VendorName": "string" }, "NotStatement": { "Statement": "Statement" }, "OrStatement": { "Statements": [ "Statement" ] }, "RateBasedStatement": { "AggregateKeyType": "string", "ForwardedIPConfig": { "FallbackBehavior": "string", "HeaderName": "string" }, "Limit": number, "ScopeDownStatement": "Statement" }, "RegexPatternSetReferenceStatement": { "ARN": "string", "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "RuleGroupReferenceStatement": { "ARN": "string", "ExcludedRules": [ { "Name": "string" } ] }, "SizeConstraintStatement": { "ComparisonOperator": "string", "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "Size": number, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "SqliMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "XssMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] } }, "VisibilityConfig": { "CloudWatchMetricsEnabled": boolean, "MetricName": "string", "SampledRequestsEnabled": boolean } } ], "Scope": "string", "VisibilityConfig": { "CloudWatchMetricsEnabled": boolean, "MetricName": "string", "SampledRequestsEnabled": boolean } }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

DefaultAction

The action to perform if none of the Rules contained in the WebACL match.

Type: DefaultAction object

Required: Yes

Description

A description of the Web ACL that helps with identification. You cannot change the description of a Web ACL after you create it.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^[\w+=:#@/\-,\.][\w+=:#@/\-,\.\s]+[\w+=:#@/\-,\.]$

Required: No

Id

The unique identifier for the Web ACL. This ID is returned in the responses to create and list commands. You provide it to operations like update and delete.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Required: Yes

LockToken

A token used for optimistic locking. AWS WAF returns a token to your get and list requests, to mark the state of the entity at the time of the request. To make changes to the entity associated with the token, you provide the token to operations like update and delete. AWS WAF uses the token to ensure that no changes have been made to the entity since you last retrieved it. If a change has been made, the update fails with a WAFOptimisticLockException. If this happens, perform another get, and use the new token returned by that operation.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Required: Yes

Name

The name of the Web ACL. You cannot change the name of a Web ACL after you create it.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: ^[\w\-]+$

Required: Yes

Rules

The Rule statements used to identify the web requests that you want to allow, block, or count. Each rule includes one top-level statement that AWS WAF uses to identify matching web requests, and parameters that govern how AWS WAF handles them.

Type: Array of Rule objects

Required: No

Scope

Specifies whether this is for an AWS CloudFront distribution or for a regional application. A regional application can be an Application Load Balancer (ALB) or an API Gateway stage.

To work with CloudFront, you must also specify the Region US East (N. Virginia) as follows:

  • CLI - Specify the Region when you use the CloudFront scope: --scope=CLOUDFRONT --region=us-east-1.

  • API and SDKs - For all calls, use the Region endpoint us-east-1.

Type: String

Valid Values: CLOUDFRONT | REGIONAL

Required: Yes

VisibilityConfig

Defines and enables Amazon CloudWatch metrics and web request sample collection.

Type: VisibilityConfig object

Required: Yes

Response Syntax

{ "NextLockToken": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

NextLockToken

A token used for optimistic locking. AWS WAF returns this token to your update requests. You use NextLockToken in the same manner as you use LockToken.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 36.

Pattern: ^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$

Errors

For information about the errors that are common to all actions, see Common Errors.

WAFDuplicateItemException

AWS WAF couldn’t perform the operation because the resource that you tried to save is a duplicate of an existing one.

HTTP Status Code: 400

WAFInternalErrorException

Your request is valid, but AWS WAF couldn’t perform the operation because of a system problem. Retry your request.

HTTP Status Code: 500

WAFInvalidOperationException

The operation isn't valid.

HTTP Status Code: 400

WAFInvalidParameterException

The operation failed because AWS WAF didn't recognize a parameter in the request. For example:

  • You specified an invalid parameter name or value.

  • Your nested statement isn't valid. You might have tried to nest a statement that can’t be nested.

  • You tried to update a WebACL with a DefaultAction that isn't among the types available at DefaultAction.

  • Your request references an ARN that is malformed, or corresponds to a resource with which a Web ACL cannot be associated.

HTTP Status Code: 400

WAFInvalidResourceException

AWS WAF couldn’t perform the operation because the resource that you requested isn’t valid. Check the resource, and try again.

HTTP Status Code: 400

WAFLimitsExceededException

AWS WAF couldn’t perform the operation because you exceeded your 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.

HTTP Status Code: 400

WAFNonexistentItemException

AWS WAF couldn’t perform the operation because your resource doesn’t exist.

HTTP Status Code: 400

WAFOptimisticLockException

AWS WAF couldn’t save your changes because you tried to update or delete a resource that has changed since you last retrieved it. Get the resource again, make any changes you need to make to the new copy, and retry your operation.

HTTP Status Code: 400

WAFSubscriptionNotFoundException

HTTP Status Code: 400

WAFUnavailableEntityException

AWS WAF couldn’t retrieve the resource that you requested. Retry your request.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: