create_rule
¶
create_rule(
name: ResourceName,
metric_name: MetricName,
change_token: ChangeToken,
*,
config_overrides: Optional[WAFClientConfig] = None,
tags: Optional[TagList] = None,
) -> CreateRuleResponse
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 Rule, which contains the IPSet objects, ByteMatchSet objects, and other predicates that identify the requests that you want to block. If you add more than one predicate to a Rule, a request must match all of the specifications to be allowed or blocked. For example, suppose that you add the following to a Rule:
-
An
IPSetthat matches the IP address192.0.2.44/32 -
A
ByteMatchSetthat matchesBadBotin theUser-Agentheader
You then add the Rule to a WebACL and specify that you want to blocks requests that satisfy the Rule. For a request to be blocked, it must come from the IP address 192.0.2.44 and the User-Agent header in the request must contain the value BadBot.
To create and configure a Rule, perform the following steps:
-
Create and update the predicates that you want to include in the
Rule. For more information, see CreateByteMatchSet, CreateIPSet, and CreateSqlInjectionMatchSet. -
Use GetChangeToken to get the change token that you provide in the
ChangeTokenparameter of aCreateRulerequest. -
Submit a
CreateRulerequest. -
Use
GetChangeTokento get the change token that you provide in theChangeTokenparameter of an UpdateRule request. -
Submit an
UpdateRulerequest to specify the predicates that you want to include in theRule. -
Create and update a
WebACLthat contains theRule. For more information, see CreateWebACL.
For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide.
Parameters:
-
name(ResourceName) –A friendly name or description of the Rule. You can't change the name of a
Ruleafter you create it. -
metric_name(MetricName) –A friendly name or description for the metrics for this
Rule. 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 the name of the metric after you create theRule. -
change_token(ChangeToken) –The value returned by the most recent call to GetChangeToken.
-
tags(Optional[TagList], default:None) –
Raises:
-
WAFBadRequestException– -
WAFDisallowedNameException–The name specified is invalid.
-
WAFInternalErrorException–The operation failed because of a system problem, even though the request was valid. Retry your request.
-
WAFInvalidParameterException–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, orWebACL) using an action other thanINSERTorDELETE. -
You tried to create a
WebACLwith aDefaultActionTypeother thanALLOW,BLOCK, orCOUNT. -
You tried to create a
RateBasedRulewith aRateKeyvalue other thanIP. -
You tried to update a
WebACLwith aWafActionTypeother thanALLOW,BLOCK, orCOUNT. -
You tried to update a
ByteMatchSetwith aFieldToMatchTypeother than HEADER, METHOD, QUERY_STRING, URI, or BODY. -
You tried to update a
ByteMatchSetwith aFieldofHEADERbut no value forData. -
Your request references an ARN that is malformed, or corresponds to a resource with which a web ACL cannot be associated.
-
-
WAFLimitsExceededException–The operation exceeds a resource limit, for example, the maximum number of
WebACLobjects that you can create for an AWS account. For more information, see Limits in the AWS WAF Developer Guide. -
WAFStaleDataException–The operation failed because you tried to create, update, or delete an object by using a change token that has already been used.
-
WAFTagOperationException– -
WAFTagOperationInternalErrorException– -
UnknownServiceError–The service returned an error code this client does not model.
Examples:
To create a rule The following example creates a rule named WAFByteHeaderRule.
>>> client.create_rule(name='WAFByteHeaderRule', metric_name='WAFByteHeaderRule', change_token='abcd12f2-46da-4fdb-b8d5-fbd4c466928f')