The Predicates object contains one Predicate
element for each ByteMatchSet, IPSet, or
SqlInjectionMatchSet object that you want to include in a
RateBasedRule.
A friendly name or description for the metrics for a
RateBasedRule. 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 the RateBasedRule.
The field that AWS WAF uses to determine if requests are likely arriving
from single source and thus subject to rate monitoring. The only valid value
for RateKey is IP. IP indicates that
requests arriving from the same IP address are subject to the
RateLimit that is specified in the RateBasedRule.
The maximum number of requests, which have an identical value in the field
specified by the RateKey, allowed in a five-minute period. If
the number of requests exceeds the RateLimit and the other
predicates specified in the rule are also met, AWS WAF triggers the action
that is specified for this rule.
A unique identifier for a RateBasedRule. You use
RuleId to get more information about a
RateBasedRule (see GetRateBasedRule), update a
RateBasedRule (see UpdateRateBasedRule), insert a
RateBasedRule into a WebACL or delete one from a
WebACL (see UpdateWebACL), or delete a
RateBasedRule from AWS WAF (see DeleteRateBasedRule).