CreateWebACL - AWS WAFV2

CreateWebACL

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 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 an Amazon CloudFront distribution, an Amazon API Gateway REST API, an Application Load Balancer, or an AWS AppSync GraphQL API.

Request Syntax

{ "CustomResponseBodies": { "string" : { "Content": "string", "ContentType": "string" } }, "DefaultAction": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "Description": "string", "Name": "string", "Rules": [ { "Action": { "Allow": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Block": { "CustomResponse": { "CustomResponseBodyKey": "string", "ResponseCode": number, "ResponseHeaders": [ { "Name": "string", "Value": "string" } ] } }, "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } } }, "Name": "string", "OverrideAction": { "Count": { "CustomRequestHandling": { "InsertHeaders": [ { "Name": "string", "Value": "string" } ] } }, "None": { } }, "Priority": number, "RuleLabels": [ { "Name": "string" } ], "Statement": { "AndStatement": { "Statements": [ "Statement" ] }, "ByteMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string" }, "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" } }, "LabelMatchStatement": { "Key": "string", "Scope": "string" }, "ManagedRuleGroupStatement": { "ExcludedRules": [ { "Name": "string" } ], "Name": "string", "ScopeDownStatement": "Statement", "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": { }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string" }, "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": { }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "Size": number, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "SqliMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] }, "XssMatchStatement": { "FieldToMatch": { "AllQueryArguments": { }, "Body": { }, "JsonBody": { "InvalidFallbackBehavior": "string", "MatchPattern": { "All": { }, "IncludedPaths": [ "string" ] }, "MatchScope": "string" }, "Method": { }, "QueryString": { }, "SingleHeader": { "Name": "string" }, "SingleQueryArgument": { "Name": "string" }, "UriPath": { } }, "TextTransformations": [ { "Priority": number, "Type": "string" } ] } }, "VisibilityConfig": { "CloudWatchMetricsEnabled": boolean, "MetricName": "string", "SampledRequestsEnabled": boolean } } ], "Scope": "string", "Tags": [ { "Key": "string", "Value": "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.

CustomResponseBodies

A map of custom response keys and content bodies. When you create a rule with a block action, you can send a custom response to the web request. You define these for the web ACL, and then use them in the rules and default actions that you define in the web ACL.

For information about customizing web requests and responses, see Customizing web requests and responses in AWS WAF in the AWS WAF Developer Guide.

For information about the limits on count and size for custom request and response settings, see AWS WAF quotas in the AWS WAF Developer Guide.

Type: String to CustomResponseBody object map

Map Entries: Maximum number of items.

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

Key Pattern: ^[\w\-]+$

Required: No

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.

Type: String

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

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

Required: No

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 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 AWS 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.

Type: String

Valid Values: CLOUDFRONT | REGIONAL

Required: Yes

Tags

An array of key:value pairs to associate with the resource.

Type: Array of Tag objects

Array Members: Minimum number of 1 item.

Required: No

VisibilityConfig

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

Type: VisibilityConfig object

Required: Yes

Response Syntax

{ "Summary": { "ARN": "string", "Description": "string", "Id": "string", "LockToken": "string", "Name": "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.

Summary

High-level information about a WebACL, returned by operations like create and list. This provides information like the ID, that you can use to retrieve and manage a WebACL, and the ARN, that you provide to operations like AssociateWebACL.

Type: WebACLSummary object

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 a parameter name or value that isn't valid.

  • 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 can't 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

You tried to use a managed rule group that's available by subscription, but you aren't subscribed to it yet.

HTTP Status Code: 400

WAFTagOperationException

An error occurred during the tagging operation. Retry your request.

HTTP Status Code: 400

WAFTagOperationInternalErrorException

AWS WAF couldn’t perform your tagging operation because of an internal error. Retry your request.

HTTP Status Code: 500

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: