View Source AWS.WAFV2 (aws-elixir v1.0.4)
WAF
This is the latest version of the WAF API, released in November, 2019.
The names of the entities that you use to access this API, like endpoints and namespaces, all have the versioning information added, like "V2" or "v2", to distinguish from the prior version. We recommend migrating your resources to this version, because it has a number of significant improvements.
If you used WAF prior to this release, you can't use this WAFV2 API to access any WAF resources that you created before. WAF Classic support will end on September 30, 2025.
For information about WAF, including how to migrate your WAF Classic resources to this version, see the WAF Developer Guide.
WAF is a web application firewall that lets you monitor the HTTP and HTTPS requests that are forwarded to an Amazon CloudFront distribution, Amazon API Gateway REST API, Application Load Balancer, AppSync GraphQL API, Amazon Cognito user pool, App Runner service, or Amazon Web Services Verified Access instance. WAF also lets you control access to your content, to protect the Amazon Web Services resource that WAF is monitoring. Based on conditions that you specify, such as the IP addresses that requests originate from or the values of query strings, the protected resource responds to requests with either the requested content, an HTTP 403 status code (Forbidden), or with a custom response.
This API guide is for developers who need detailed information about WAF API actions, data types, and errors. For detailed information about WAF features and guidance for configuring and using WAF, see the WAF Developer Guide.
You can make calls using the endpoints listed in WAF endpoints and quotas.
* For regional applications, you can use any of the endpoints in the list. A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, an AppSync GraphQL API, an Amazon Cognito user pool, an App Runner service, or an Amazon Web Services Verified Access instance.
* For Amazon CloudFront applications, you must use the API endpoint listed for US East (N. Virginia): us-east-1.
Alternatively, you can use one of the Amazon Web Services SDKs to access an API that's tailored to the programming language or platform that you're using. For more information, see Amazon Web Services SDKs.
Link to this section Summary
Functions
Associates a web ACL with a regional application resource, to protect the resource.
Returns the web ACL capacity unit (WCU) requirements for a specified scope and set of rules.
Creates an API key that contains a set of token domains.
Creates an IPSet, which you use to identify web requests that
originate from specific IP addresses or ranges of IP addresses.
Creates a RegexPatternSet, which you reference in a
RegexPatternSetReferenceStatement, to have WAF inspect a web request
component for the specified patterns.
Creates a RuleGroup per the specifications provided.
Creates a WebACL per the specifications provided.
Deletes the specified API key.
Deletes all rule groups that are managed by Firewall Manager from the specified
WebACL.
Deletes the specified IPSet.
Deletes the LoggingConfiguration from the specified web ACL.
Permanently deletes an IAM policy from the specified rule group.
Deletes the specified RegexPatternSet.
Deletes the specified RuleGroup.
Deletes the specified WebACL.
Provides high-level information for the Amazon Web Services Managed Rules rule groups and Amazon Web Services Marketplace managed rule groups.
Provides high-level information for the managed rule groups owned by a specific vendor.
Provides high-level information for a managed rule group, including descriptions of the rules.
Disassociates the specified regional application resource from any existing web ACL association.
Generates a presigned download URL for the specified release of the mobile SDK.
Returns your API key in decrypted form.
Retrieves the specified IPSet.
Returns the LoggingConfiguration for the specified web ACL.
Retrieves the specified managed rule set.
Retrieves information for the specified mobile SDK release, including release notes and tags.
Returns the IAM policy that is attached to the specified rule group.
Retrieves the IP addresses that are currently blocked by a rate-based rule instance.
Retrieves the specified RegexPatternSet.
Retrieves the specified RuleGroup.
Gets detailed information about a specified number of requests--a sample--that WAF randomly selects from among the first 5,000 requests that your Amazon Web Services resource received during a time range that you choose.
Retrieves the specified WebACL.
Retrieves the WebACL for the specified resource.
Retrieves a list of the API keys that you've defined for the specified scope.
Returns a list of the available versions for the specified managed rule group.
Retrieves an array of managed rule groups that are available for you to use.
Retrieves an array of IPSetSummary objects for the IP sets that you
manage.
Retrieves an array of your LoggingConfiguration objects.
Retrieves the managed rule sets that you own.
Retrieves a list of the available releases for the mobile SDK and the specified device platform.
Retrieves an array of RegexPatternSetSummary objects for the regex
pattern sets that you manage.
Retrieves an array of the Amazon Resource Names (ARNs) for the regional resources that are associated with the specified web ACL.
Retrieves an array of RuleGroupSummary objects for the rule groups
that you manage.
Retrieves the TagInfoForResource for the specified resource.
Retrieves an array of WebACLSummary objects for the web ACLs that you
manage.
Enables the specified LoggingConfiguration, to start logging from a
web ACL, according to the configuration provided.
Defines the versions of your managed rule set that you are offering to the customers.
Use this to share a rule group with other accounts.
Associates tags with the specified Amazon Web Services resource.
Disassociates tags from an Amazon Web Services resource.
Updates the specified IPSet.
Updates the expiration information for your managed rule set.
Updates the specified RegexPatternSet.
Updates the specified RuleGroup.
Updates the specified WebACL.
Link to this section Functions
Associates a web ACL with a regional application resource, to protect the resource.
A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, an AppSync GraphQL API, an Amazon Cognito user pool, an App Runner service, or an Amazon Web Services Verified Access instance.
For Amazon CloudFront, don't use this call. Instead, use your CloudFront
distribution configuration. To
associate a web ACL, in the CloudFront call UpdateDistribution, set the web
ACL ID
to the Amazon Resource Name (ARN) of the web ACL. For information, see
UpdateDistribution in the Amazon CloudFront Developer Guide.
required-permissions-for-customer-managed-iam-policies
Required permissions for customer-managed IAM policies
This call requires permissions that are specific to the protected resource type. For details, see Permissions for AssociateWebACL in the WAF Developer Guide.
temporary-inconsistencies-during-updates
Temporary inconsistencies during updates
When you create or change a web ACL or other WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.
The following are examples of the temporary inconsistencies that you might notice during change propagation:
* After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.
* After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.
* After you change a rule action setting, you might see the old action in some places and the new action in others.
* After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.
Returns the web ACL capacity unit (WCU) requirements for a specified scope and set of rules.
You can use this to check the capacity requirements for the rules you want to
use in a
RuleGroup or WebACL.
WAF uses WCUs to calculate and control the operating resources that are used to run your rules, rule groups, and web ACLs. WAF calculates capacity differently for each rule type, to reflect the relative cost of each rule. Simple rules that cost little to run use fewer WCUs than more complex rules that use more processing power. Rule group capacity is fixed at creation, which helps users plan their web ACL WCU usage when they use a rule group. For more information, see WAF web ACL capacity units (WCU) in the WAF Developer Guide.
Creates an API key that contains a set of token domains.
API keys are required for the integration of the CAPTCHA API in your JavaScript client applications. The API lets you customize the placement and characteristics of the CAPTCHA puzzle for your end users. For more information about the CAPTCHA JavaScript integration, see WAF client application integration in the WAF Developer Guide.
You can use a single key for up to 5 domains. After you generate a key, you can copy it for use in your JavaScript integration.
Creates an IPSet, which you use to identify web requests that
originate from specific IP addresses or ranges of IP addresses.
For example, if you're receiving a lot of requests from a ranges of IP addresses, you can configure WAF to block them using an IPSet that lists those IP addresses.
Creates a RegexPatternSet, which you reference in a
RegexPatternSetReferenceStatement, to have WAF inspect a web request
component for the specified patterns.
Creates a RuleGroup per the specifications provided.
A rule group defines a collection of rules to inspect and control web requests
that you can use in a WebACL. When you create a rule group, you define an
immutable capacity limit. If you update a rule group, you must stay within the
capacity. This allows others to reuse the rule group with confidence in its
capacity requirements.
Creates a WebACL per the specifications provided.
A web ACL defines a collection of rules to use to inspect and control web
requests. Each rule has a statement that defines what to look for in web
requests and an action that WAF applies to requests that match the statement. 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 Amazon Web Services resources to protect.
The resources can be an Amazon CloudFront distribution, an Amazon API Gateway
REST API, an Application Load Balancer, an AppSync GraphQL API, an Amazon
Cognito user pool, an App Runner service, or an Amazon Web Services Verified
Access instance.
Deletes the specified API key.
After you delete a key, it can take up to 24 hours for WAF to disallow use of the key in all regions.
Deletes all rule groups that are managed by Firewall Manager from the specified
WebACL.
You can only use this if ManagedByFirewallManager and
RetrofittedByFirewallManager are both false in the web ACL.
Deletes the specified IPSet.
Deletes the LoggingConfiguration from the specified web ACL.
Permanently deletes an IAM policy from the specified rule group.
You must be the owner of the rule group to perform this operation.
Deletes the specified RegexPatternSet.
Deletes the specified RuleGroup.
Deletes the specified WebACL.
You can only use this if ManagedByFirewallManager is false in the web ACL.
Before deleting any web ACL, first disassociate it from all resources.
To retrieve a list of the resources that are associated with a web ACL, use the following calls:
For regional resources, call ListResourcesForWebACL.
For Amazon CloudFront distributions, use the CloudFront call
ListDistributionsByWebACLId. For information, see
ListDistributionsByWebACLId in the Amazon CloudFront API Reference.
To disassociate a resource from a web ACL, use the following calls:
For regional resources, call DisassociateWebACL.
For Amazon CloudFront distributions, provide an empty web ACL ID in the
CloudFront call
UpdateDistribution. For information, see
UpdateDistribution
in the Amazon CloudFront API Reference.
Provides high-level information for the Amazon Web Services Managed Rules rule groups and Amazon Web Services Marketplace managed rule groups.
Provides high-level information for the managed rule groups owned by a specific vendor.
Provides high-level information for a managed rule group, including descriptions of the rules.
Disassociates the specified regional application resource from any existing web ACL association.
A resource can have at most one web ACL association. A regional application can be an Application Load Balancer (ALB), an Amazon API Gateway REST API, an AppSync GraphQL API, an Amazon Cognito user pool, an App Runner service, or an Amazon Web Services Verified Access instance.
For Amazon CloudFront, don't use this call. Instead, use your CloudFront
distribution configuration. To
disassociate a web ACL, provide an empty web ACL ID in the CloudFront call
UpdateDistribution. For information, see
UpdateDistribution in the Amazon CloudFront API Reference.
required-permissions-for-customer-managed-iam-policies
Required permissions for customer-managed IAM policies
This call requires permissions that are specific to the protected resource type. For details, see Permissions for DisassociateWebACL in the WAF Developer Guide.
Generates a presigned download URL for the specified release of the mobile SDK.
The mobile SDK is not generally available. Customers who have access to the mobile SDK can use it to establish and manage WAF tokens for use in HTTP(S) requests from a mobile device to WAF. For more information, see WAF client application integration in the WAF Developer Guide.
Returns your API key in decrypted form.
Use this to check the token domains that you have defined for the key.
API keys are required for the integration of the CAPTCHA API in your JavaScript client applications. The API lets you customize the placement and characteristics of the CAPTCHA puzzle for your end users. For more information about the CAPTCHA JavaScript integration, see WAF client application integration in the WAF Developer Guide.
Retrieves the specified IPSet.
Returns the LoggingConfiguration for the specified web ACL.
Retrieves the specified managed rule set.
This is intended for use only by vendors of managed rule sets. Vendors are Amazon Web Services and Amazon Web Services Marketplace sellers.
Vendors, you can use the managed rule set APIs to provide controlled rollout of
your versioned managed rule group offerings for your customers. The APIs are
ListManagedRuleSets, GetManagedRuleSet, PutManagedRuleSetVersions, and
UpdateManagedRuleSetVersionExpiryDate.
Retrieves information for the specified mobile SDK release, including release notes and tags.
The mobile SDK is not generally available. Customers who have access to the mobile SDK can use it to establish and manage WAF tokens for use in HTTP(S) requests from a mobile device to WAF. For more information, see WAF client application integration in the WAF Developer Guide.
Returns the IAM policy that is attached to the specified rule group.
You must be the owner of the rule group to perform this operation.
get_rate_based_statement_managed_keys(client, input, options \\ [])
View SourceRetrieves the IP addresses that are currently blocked by a rate-based rule instance.
This is only available for rate-based rules that aggregate solely on the IP address or on the forwarded IP address.
The maximum number of addresses that can be blocked for a single rate-based rule instance is 10,000. If more than 10,000 addresses exceed the rate limit, those with the highest rates are blocked.
For a rate-based rule that you've defined inside a rule group, provide the name of the rule group reference statement in your request, in addition to the rate-based rule name and the web ACL name.
WAF monitors web requests and manages keys independently for each unique combination of web ACL, optional rule group, and rate-based rule. For example, if you define a rate-based rule inside a rule group, and then use the rule group in a web ACL, WAF monitors web requests and manages keys for that web ACL, rule group reference statement, and rate-based rule instance. If you use the same rule group in a second web ACL, WAF monitors web requests and manages keys for this second usage completely independent of your first.
Retrieves the specified RegexPatternSet.
Retrieves the specified RuleGroup.
Gets detailed information about a specified number of requests--a sample--that WAF randomly selects from among the first 5,000 requests that your Amazon Web Services resource received during a time range that you choose.
You can specify a sample size of up to 500 requests, and you can specify any time range in the previous three hours.
GetSampledRequests returns a time range, which is usually the time range that
you specified. However, if your resource (such as a CloudFront distribution)
received 5,000
requests before the specified time range elapsed, GetSampledRequests returns
an updated time range. This new time range indicates the actual period during
which WAF
selected the requests in the sample.
Retrieves the specified WebACL.
Retrieves the WebACL for the specified resource.
This call uses GetWebACL, to verify that your account has permission to access
the retrieved web ACL.
If you get an error that indicates that your account isn't authorized to perform
wafv2:GetWebACL on the resource,
that error won't be included in your CloudTrail event history.
For Amazon CloudFront, don't use this call. Instead, call the CloudFront action
GetDistributionConfig. For information, see
GetDistributionConfig in the Amazon CloudFront API Reference.
required-permissions-for-customer-managed-iam-policies
Required permissions for customer-managed IAM policies
This call requires permissions that are specific to the protected resource type. For details, see Permissions for GetWebACLForResource in the WAF Developer Guide.
Retrieves a list of the API keys that you've defined for the specified scope.
API keys are required for the integration of the CAPTCHA API in your JavaScript client applications. The API lets you customize the placement and characteristics of the CAPTCHA puzzle for your end users. For more information about the CAPTCHA JavaScript integration, see WAF client application integration in the WAF Developer Guide.
list_available_managed_rule_group_versions(client, input, options \\ [])
View SourceReturns a list of the available versions for the specified managed rule group.
Retrieves an array of managed rule groups that are available for you to use.
This list includes all Amazon Web Services Managed Rules rule groups and all of the Amazon Web Services Marketplace managed rule groups that you're subscribed to.
Retrieves an array of IPSetSummary objects for the IP sets that you
manage.
Retrieves an array of your LoggingConfiguration objects.
Retrieves the managed rule sets that you own.
This is intended for use only by vendors of managed rule sets. Vendors are Amazon Web Services and Amazon Web Services Marketplace sellers.
Vendors, you can use the managed rule set APIs to provide controlled rollout of
your versioned managed rule group offerings for your customers. The APIs are
ListManagedRuleSets, GetManagedRuleSet, PutManagedRuleSetVersions, and
UpdateManagedRuleSetVersionExpiryDate.
Retrieves a list of the available releases for the mobile SDK and the specified device platform.
The mobile SDK is not generally available. Customers who have access to the mobile SDK can use it to establish and manage WAF tokens for use in HTTP(S) requests from a mobile device to WAF. For more information, see WAF client application integration in the WAF Developer Guide.
Retrieves an array of RegexPatternSetSummary objects for the regex
pattern sets that you manage.
Retrieves an array of the Amazon Resource Names (ARNs) for the regional resources that are associated with the specified web ACL.
For Amazon CloudFront, don't use this call. Instead, use the CloudFront call
ListDistributionsByWebACLId. For information, see
ListDistributionsByWebACLId in the Amazon CloudFront API Reference.
required-permissions-for-customer-managed-iam-policies
Required permissions for customer-managed IAM policies
This call requires permissions that are specific to the protected resource type. For details, see Permissions for ListResourcesForWebACL in the WAF Developer Guide.
Retrieves an array of RuleGroupSummary objects for the rule groups
that you manage.
Retrieves the TagInfoForResource for the specified resource.
Tags are key:value pairs that you can use to categorize and manage your resources, for purposes like billing. For example, you might set the tag key to "customer" and the value to the customer name or ID. You can specify one or more tags to add to each Amazon Web Services resource, up to 50 tags for a resource.
You can tag the Amazon Web Services resources that you manage through WAF: web ACLs, rule groups, IP sets, and regex pattern sets. You can't manage or view tags through the WAF console.
Retrieves an array of WebACLSummary objects for the web ACLs that you
manage.
Enables the specified LoggingConfiguration, to start logging from a
web ACL, according to the configuration provided.
This operation completely replaces any mutable specifications that you already have for a logging configuration with the ones that you provide to this call.
To modify an existing logging configuration, do the following:
Retrieve it by calling GetLoggingConfiguration
Update its settings as needed
Provide the complete logging configuration specification to this call
You can define one logging destination per web ACL.
You can access information about the traffic that WAF inspects using the following steps:
1. Create your logging destination. You can use an Amazon CloudWatch Logs log group, an Amazon Simple Storage Service (Amazon S3) bucket, or an Amazon Kinesis Data Firehose.
The name that you give the destination must start with aws-waf-logs-.
Depending on the type of destination, you might need to configure additional
settings or permissions.
For configuration requirements and pricing information for each destination type, see Logging web ACL traffic in the WAF Developer Guide.
2.
Associate your logging destination to your web ACL using a
PutLoggingConfiguration request.
When you successfully enable logging using a PutLoggingConfiguration
request, WAF creates an additional role or policy that is required to write
logs to the logging destination. For an Amazon CloudWatch Logs log group, WAF
creates a resource policy on the log group.
For an Amazon S3 bucket, WAF creates a bucket policy. For an Amazon Kinesis Data
Firehose, WAF creates a service-linked role.
For additional information about web ACL logging, see Logging web ACL traffic information in the WAF Developer Guide.
Defines the versions of your managed rule set that you are offering to the customers.
Customers see your offerings as managed rule groups with versioning.
This is intended for use only by vendors of managed rule sets. Vendors are Amazon Web Services and Amazon Web Services Marketplace sellers.
Vendors, you can use the managed rule set APIs to provide controlled rollout of
your versioned managed rule group offerings for your customers. The APIs are
ListManagedRuleSets, GetManagedRuleSet, PutManagedRuleSetVersions, and
UpdateManagedRuleSetVersionExpiryDate.
Customers retrieve their managed rule group list by calling
ListAvailableManagedRuleGroups. The name that you provide here for your
managed rule set is the name the customer sees for the corresponding managed
rule group.
Customers can retrieve the available versions for a managed rule group by
calling ListAvailableManagedRuleGroupVersions. You provide a rule group
specification for each version. For each managed rule set, you must specify a
version that
you recommend using.
To initiate the expiration of a managed rule group version, use
UpdateManagedRuleSetVersionExpiryDate.
Use this to share a rule group with other accounts.
This action attaches an IAM policy to the specified resource. You must be the owner of the rule group to perform this operation.
This action is subject to the following restrictions:
*
You can attach only one policy with each PutPermissionPolicy
request.
*
The ARN in the request must be a valid WAF RuleGroup ARN and the
rule group must exist in the same Region.
* The user making the request must be the owner of the rule group.
If a rule group has been shared with your account, you can access it through the
call GetRuleGroup,
and you can reference it in CreateWebACL and UpdateWebACL.
Rule groups that are shared with you don't appear in your WAF console rule
groups listing.
Associates tags with the specified Amazon Web Services resource.
Tags are key:value pairs that you can use to categorize and manage your resources, for purposes like billing. For example, you might set the tag key to "customer" and the value to the customer name or ID. You can specify one or more tags to add to each Amazon Web Services resource, up to 50 tags for a resource.
You can tag the Amazon Web Services resources that you manage through WAF: web ACLs, rule groups, IP sets, and regex pattern sets. You can't manage or view tags through the WAF console.
Disassociates tags from an Amazon Web Services resource.
Tags are key:value pairs that you can associate with Amazon Web Services resources. For example, the tag key might be "customer" and the tag value might be "companyA." You can specify one or more tags to add to each container. You can add up to 50 tags to each Amazon Web Services resource.
Updates the specified IPSet.
This operation completely replaces the mutable specifications that you already have for the IP set with the ones that you provide to this call.
To modify an IP set, do the following:
Retrieve it by calling GetIPSet
Update its settings as needed
Provide the complete IP set specification to this call
temporary-inconsistencies-during-updates
Temporary inconsistencies during updates
When you create or change a web ACL or other WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.
The following are examples of the temporary inconsistencies that you might notice during change propagation:
* After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.
* After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.
* After you change a rule action setting, you might see the old action in some places and the new action in others.
* After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.
update_managed_rule_set_version_expiry_date(client, input, options \\ [])
View SourceUpdates the expiration information for your managed rule set.
Use this to initiate the
expiration of a managed rule group version. After you initiate expiration for a
version,
WAF excludes it from the response to ListAvailableManagedRuleGroupVersions for
the managed rule group.
This is intended for use only by vendors of managed rule sets. Vendors are Amazon Web Services and Amazon Web Services Marketplace sellers.
Vendors, you can use the managed rule set APIs to provide controlled rollout of
your versioned managed rule group offerings for your customers. The APIs are
ListManagedRuleSets, GetManagedRuleSet, PutManagedRuleSetVersions, and
UpdateManagedRuleSetVersionExpiryDate.
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 a regex pattern set, do the following:
Retrieve it by calling GetRegexPatternSet
Update its settings as needed
Provide the complete regex pattern set specification to this call
temporary-inconsistencies-during-updates
Temporary inconsistencies during updates
When you create or change a web ACL or other WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.
The following are examples of the temporary inconsistencies that you might notice during change propagation:
* After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.
* After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.
* After you change a rule action setting, you might see the old action in some places and the new action in others.
* After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.
Updates the specified RuleGroup.
This operation completely replaces the mutable specifications that you already have for the rule group with the ones that you provide to this call.
To modify a rule group, do the following:
Retrieve it by calling GetRuleGroup
Update its settings as needed
Provide the complete rule group specification to this call
A rule group defines a collection of rules to inspect and control web requests
that you can use in a WebACL. When you create a rule group, you define an
immutable capacity limit. If you update a rule group, you must stay within the
capacity. This allows others to reuse the rule group with confidence in its
capacity requirements.
temporary-inconsistencies-during-updates
Temporary inconsistencies during updates
When you create or change a web ACL or other WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.
The following are examples of the temporary inconsistencies that you might notice during change propagation:
* After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.
* After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.
* After you change a rule action setting, you might see the old action in some places and the new action in others.
* After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.
Updates the specified WebACL.
While updating a web ACL, WAF provides continuous coverage to the resources that you have associated with the web ACL.
This operation completely replaces the mutable specifications that you already have for the web ACL with the ones that you provide to this call.
To modify a web ACL, do the following:
Retrieve it by calling GetWebACL
Update its settings as needed
Provide the complete web ACL specification to this call
A web ACL defines a collection of rules to use to inspect and control web
requests. Each rule has a statement that defines what to look for in web
requests and an action that WAF applies to requests that match the statement. 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 Amazon Web Services resources to protect.
The resources can be an Amazon CloudFront distribution, an Amazon API Gateway
REST API, an Application Load Balancer, an AppSync GraphQL API, an Amazon
Cognito user pool, an App Runner service, or an Amazon Web Services Verified
Access instance.
temporary-inconsistencies-during-updates
Temporary inconsistencies during updates
When you create or change a web ACL or other WAF resources, the changes take a small amount of time to propagate to all areas where the resources are stored. The propagation time can be from a few seconds to a number of minutes.
The following are examples of the temporary inconsistencies that you might notice during change propagation:
* After you create a web ACL, if you try to associate it with a resource, you might get an exception indicating that the web ACL is unavailable.
* After you add a rule group to a web ACL, the new rule group rules might be in effect in one area where the web ACL is used and not in another.
* After you change a rule action setting, you might see the old action in some places and the new action in others.
* After you add an IP address to an IP set that is in use in a blocking rule, the new address might be blocked in one area while still allowed in another.