CreateWebACLCommand

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 WebACL, which contains the Rules that identify the CloudFront web requests that you want to allow, block, or count. AWS WAF evaluates Rules in order based on the value of Priority for each Rule.

You also specify a default action, either ALLOW or BLOCK. If a web request doesn't match any of the Rules in a WebACL, AWS WAF responds to the request with the default action.

To create and configure a WebACL, perform the following steps:

  1. Create and update the ByteMatchSet objects and other predicates that you want to include in Rules. For more information, see CreateByteMatchSet, UpdateByteMatchSet, CreateIPSet, UpdateIPSet, CreateSqlInjectionMatchSet, and UpdateSqlInjectionMatchSet.

  2. Create and update the Rules that you want to include in the WebACL. For more information, see CreateRule and UpdateRule.

  3. Use GetChangeToken to get the change token that you provide in the ChangeToken parameter of a CreateWebACL request.

  4. Submit a CreateWebACL request.

  5. Use GetChangeToken to get the change token that you provide in the ChangeToken parameter of an UpdateWebACL request.

  6. Submit an UpdateWebACL request to specify the Rules that you want to include in the WebACL, to specify the default action, and to associate the WebACL with a CloudFront distribution.

For more information about how to use the AWS WAF API, see the AWS WAF Developer Guide .

Example Syntax

Use a bare-bones client and the command you need to make an API call.

import { WAFClient, CreateWebACLCommand } from "@aws-sdk/client-waf"; // ES Modules import
// const { WAFClient, CreateWebACLCommand } = require("@aws-sdk/client-waf"); // CommonJS import
const client = new WAFClient(config);
const input = { // CreateWebACLRequest
  Name: "STRING_VALUE", // required
  MetricName: "STRING_VALUE", // required
  DefaultAction: { // WafAction
    Type: "BLOCK" || "ALLOW" || "COUNT", // required
  },
  ChangeToken: "STRING_VALUE", // required
  Tags: [ // TagList
    { // Tag
      Key: "STRING_VALUE", // required
      Value: "STRING_VALUE", // required
    },
  ],
};
const command = new CreateWebACLCommand(input);
const response = await client.send(command);
// { // CreateWebACLResponse
//   WebACL: { // WebACL
//     WebACLId: "STRING_VALUE", // required
//     Name: "STRING_VALUE",
//     MetricName: "STRING_VALUE",
//     DefaultAction: { // WafAction
//       Type: "BLOCK" || "ALLOW" || "COUNT", // required
//     },
//     Rules: [ // ActivatedRules // required
//       { // ActivatedRule
//         Priority: Number("int"), // required
//         RuleId: "STRING_VALUE", // required
//         Action: {
//           Type: "BLOCK" || "ALLOW" || "COUNT", // required
//         },
//         OverrideAction: { // WafOverrideAction
//           Type: "NONE" || "COUNT", // required
//         },
//         Type: "REGULAR" || "RATE_BASED" || "GROUP",
//         ExcludedRules: [ // ExcludedRules
//           { // ExcludedRule
//             RuleId: "STRING_VALUE", // required
//           },
//         ],
//       },
//     ],
//     WebACLArn: "STRING_VALUE",
//   },
//   ChangeToken: "STRING_VALUE",
// };

Example Usage

 Loading code editor

CreateWebACLCommand Input

See CreateWebACLCommandInput for more details

Parameter
Type
Description
ChangeToken
Required
string | undefined

The value returned by the most recent call to GetChangeToken.

DefaultAction
Required
WafAction | undefined

The action that you want AWS WAF to take when a request doesn't match the criteria specified in any of the Rule objects that are associated with the WebACL.

MetricName
Required
string | undefined

A friendly name or description for the metrics for this WebACL.The name can contain only alphanumeric characters (A-Z, a-z, 0-9), with maximum length 128 and minimum length one. It can't contain whitespace or metric names reserved for AWS WAF, including "All" and "Default_Action." You can't change MetricName after you create the WebACL.

Name
Required
string | undefined

A friendly name or description of the WebACL. You can't change Name after you create the WebACL.

Tags
Tag[] | undefined

CreateWebACLCommand Output

Parameter
Type
Description
$metadata
Required
ResponseMetadata
Metadata pertaining to this request.
ChangeToken
string | undefined

The ChangeToken that you used to submit the CreateWebACL request. You can also use this value to query the status of the request. For more information, see GetChangeTokenStatus.

WebACL
WebACL | undefined

The WebACL returned in the CreateWebACL response.

Throws

Name
Fault
Details
WAFBadRequestException
client

WAFDisallowedNameException
client

The name specified is invalid.

WAFInternalErrorException
server

The operation failed because of a system problem, even though the request was valid. Retry your request.

WAFInvalidAccountException
client

The operation failed because you tried to create, update, or delete an object by using an invalid account identifier.

WAFInvalidParameterException
client

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 DefaultAction Type 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 WafAction Type other than ALLOW, BLOCK, or COUNT.

  • You tried to update a ByteMatchSet with a FieldToMatch Type 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
client

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
client

The operation failed because you tried to create, update, or delete an object by using a change token that has already been used.

WAFTagOperationException
client

WAFTagOperationInternalErrorException
server

WAFServiceException
Base exception class for all service exceptions from WAF service.