Note: You are viewing the documentation for an older major version of the AWS CLI (version 1).

AWS CLI version 2, the latest major version of AWS CLI, is now stable and recommended for general use. To view this page for the AWS CLI version 2, click here. For more information see the AWS CLI version 2 installation instructions and migration guide.

[ aws . wafv2 ]



Updates the specified RegexPatternSet .


This operation completely replaces the mutable specifications that you already have for the regex pattern set with the ones that you provide to this call. To modify the regex pattern set, retrieve it by calling GetRegexPatternSet , update the settings as needed, and then provide the complete regex pattern set specification to this call.

When you make changes to web ACLs or web ACL components, like rules and rule groups, WAF propagates the changes everywhere that the web ACL and its components are stored and used. Your changes are applied within seconds, but there might be a brief period of inconsistency when the changes have arrived in some places and not in others. So, for example, if you change a rule action setting, the action might be the old action in one area and the new action in another area. Or if you add an IP address to an IP set used in a blocking rule, the new address might briefly be blocked in one area while still allowed in another. This temporary inconsistency can occur when you first associate a web ACL with an Amazon Web Services resource and when you change a web ACL that is already associated with a resource. Generally, any inconsistencies of this type last only a few seconds.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--name <value>
--scope <value>
--id <value>
[--description <value>]
--regular-expression-list <value>
--lock-token <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--name (string)

The name of the set. You cannot change the name after you create the set.

--scope (string)

Specifies whether this is for an Amazon CloudFront distribution or for a regional application. A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, or an AppSync GraphQL API.

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.

Possible values:


--id (string)

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

--description (string)

A description of the set that helps with identification.

--regular-expression-list (list)


A single regular expression. This is used in a RegexPatternSet .

RegexString -> (string)

The string representing the regular expression.

Shorthand Syntax:

RegexString=string ...

JSON Syntax:

    "RegexString": "string"

--lock-token (string)

A token used for optimistic locking. 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 . 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.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.


To modify the settings for an existing regex pattern set

The following update-regex-pattern-set updates the settings for the specified regex pattern set. This call requires an ID, which you can obtain from the call, list-regex-pattern-sets, and a lock token which you can obtain from the calls, list-regex-pattern-sets and get-regex-pattern-set. This call also returns a lock token that you can use for a subsequent update.

aws wafv2 update-regex-pattern-set \
    --name ExampleRegex \
    --scope REGIONAL \
    --id a1b2c3d4-5678-90ab-cdef-EXAMPLE11111 \
    --regular-expression-list RegexString="^.+$"  \
    --lock-token ed207e9c-82e9-4a77-aadd-81e6173ab7eb


    "NextLockToken": "12ebc73e-fa68-417d-a9b8-2bdd761a4fa5"

For more information, see IP Sets and Regex Pattern Sets in the AWS WAF, AWS Firewall Manager, and AWS Shield Advanced Developer Guide.


NextLockToken -> (string)

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