Determines the key to enforce the rate_limit_threshold on. Possible values are: - ALL: A single rate limit threshold is applied to all the requests matching this rule. This is the default value if this field 'enforce_on_key' is not configured. - IP: The source IP address of the request is the key. Each IP has this limit enforced separately. - HTTP_HEADER: The value of the HTTP header whose name is configured under "enforce_on_key_name". The key value is truncated to the first 128 bytes of the header value. If no such header is present in the request, the key type defaults to ALL. - XFF_IP: The first IP address (i.e. the originating client IP address) specified in the list of IPs under X-Forwarded-For HTTP header. If no such header is present or the value is not a valid IP, the key type defaults to ALL. - HTTP_COOKIE: The value of the HTTP cookie whose name is configured under "enforce_on_key_name". The key value is truncated to the first 128 bytes of the cookie value. If no such cookie is present in the request, the key type defaults to ALL.
Constants
UNDEFINED_ENFORCE_ON_KEY
value: 0
A value indicating that the enum field is not set.
ALL
value: 64897
HTTP_COOKIE
value: 494981627
HTTP_HEADER
value: 91597348
IP
value: 2343
XFF_IP
value: 438707118