Smaws_Client_WAF.UpdateRateBasedRuleval request :
Smaws_Lib.Context.t ->
update_rate_based_rule_request ->
(update_rate_based_rule_response,
[> Smaws_Lib.Protocols.AwsJson.error
| `WAFInternalErrorException of waf_internal_error_exception
| `WAFInvalidAccountException of waf_invalid_account_exception
| `WAFInvalidOperationException of waf_invalid_operation_exception
| `WAFInvalidParameterException of waf_invalid_parameter_exception
| `WAFLimitsExceededException of waf_limits_exceeded_exception
| `WAFNonexistentContainerException of waf_nonexistent_container_exception
| `WAFNonexistentItemException of waf_nonexistent_item_exception
| `WAFReferencedItemException of waf_referenced_item_exception
| `WAFStaleDataException of waf_stale_data_exception ])
Stdlib.resultThis 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.
Inserts or deletes Predicate objects in a rule and updates the RateLimit in the rule.
Each Predicate object identifies a predicate, such as a ByteMatchSet or an IPSet, that specifies the web requests that you want to block or count. The RateLimit specifies the number of requests every five minutes that triggers the rule.
If you add more than one predicate to a RateBasedRule, a request must match all the predicates and exceed the RateLimit to be counted or blocked. For example, suppose you add the following to a RateBasedRule:
IPSet that matches the IP address 192.0.2.44/32ByteMatchSet that matches BadBot in the User-Agent headerFurther, you specify a RateLimit of 1,000.
You then add the RateBasedRule to a WebACL and specify that you want to block 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. Further, requests that match these two conditions much be received at a rate of more than 1,000 every five minutes. If the rate drops below this limit, AWS WAF no longer blocks the requests.
As a second example, suppose you want to limit requests to a particular page on your site. To do this, you could add the following to a RateBasedRule:
ByteMatchSet with FieldToMatch of URIPositionalConstraint of STARTS_WITHTargetString of loginFurther, you specify a RateLimit of 1,000.
By adding this RateBasedRule to a WebACL, you could limit requests to your login page without affecting the rest of your site.