CreateRegexPatternSet
Note
Deprecation notice: AWS WAF Classic support will end on September 30, 2025.
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 RegexPatternSet
. You then use UpdateRegexPatternSet to specify the regular expression (regex) pattern that you want AWS WAF to search for, such as B[a@]dB[o0]t
. You can then configure AWS WAF to reject those requests.
To create and configure a RegexPatternSet
, perform the following steps:
-
Use GetChangeToken to get the change token that you provide in the
ChangeToken
parameter of aCreateRegexPatternSet
request. -
Submit a
CreateRegexPatternSet
request. -
Use
GetChangeToken
to get the change token that you provide in theChangeToken
parameter of anUpdateRegexPatternSet
request. -
Submit an UpdateRegexPatternSet request to specify the string that you want AWS WAF to watch for.
For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide.
Request Syntax
{
"ChangeToken": "string
",
"Name": "string
"
}
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.
- ChangeToken
-
The value returned by the most recent call to GetChangeToken.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 128.
Pattern:
.*\S.*
Required: Yes
- Name
-
A friendly name or description of the RegexPatternSet. You can't change
Name
after you create aRegexPatternSet
.Type: String
Length Constraints: Minimum length of 1. Maximum length of 128.
Pattern:
.*\S.*
Required: Yes
Response Syntax
{
"ChangeToken": "string",
"RegexPatternSet": {
"Name": "string",
"RegexPatternSetId": "string",
"RegexPatternStrings": [ "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.
- ChangeToken
-
The
ChangeToken
that you used to submit theCreateRegexPatternSet
request. You can also use this value to query the status of the request. For more information, see GetChangeTokenStatus.Type: String
Length Constraints: Minimum length of 1. Maximum length of 128.
Pattern:
.*\S.*
- RegexPatternSet
-
A RegexPatternSet that contains no objects.
Type: RegexPatternSet object
Errors
For information about the errors that are common to all actions, see Common Errors.
- WAFDisallowedNameException
-
The name specified is invalid.
HTTP Status Code: 400
- WAFInternalErrorException
-
The operation failed because of a system problem, even though the request was valid. Retry your request.
HTTP Status Code: 500
- WAFLimitsExceededException
-
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 AWS WAF Classic quotas in the AWS WAF Developer Guide.HTTP Status Code: 400
- WAFStaleDataException
-
The operation failed because you tried to create, update, or delete an object by using a change token that has already been used.
HTTP Status Code: 400
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following: