Rate Limiter
Rate limiters add configurable origin request rate limiting to a service. This information is part of a limited availability release. For more information, see our product and feature lifecycle descriptions. To use this feature you must purchase a Professional or Premier Platform subscription for either Signal Sciences Cloud WAF or Signal Sciences Next-Gen WAF and have a paid account with a contract for full-site delivery.
Data model
action | string | The action to take when a rate limiter violation is detected. | |
client_key | array | Array of VCL variables used to generate a counter key to identify a client. Example variables include req.http.Fastly-Client-IP, req.http.User-Agent, or a custom header like req.http.API-Key. | |
feature_revision | integer | Revision number of the rate limiting feature implementation. Defaults to the most recent revision. | |
http_methods | array | Array of HTTP methods to apply rate limiting to. | |
logger_type | string | Name of the type of logging endpoint to be used when action is log_only. The logging endpoint type is used to determine the appropriate log format to use when emitting log entries. | |
name | string | A human readable name for the rate limiting rule. | |
penalty_box_duration | integer | Length of time in minutes that the rate limiter is in effect after the initial violation is detected. | |
response | object | Custom response to be sent when the rate limit is exceeded. Required if action is response. | |
response_object_name | string | Name of existing response object. Required if action is response_object. Note that the rate limiter response is only updated to reflect the response object content when saving the rate limiter configuration. | |
rps_limit | integer | Upper limit of requests per second allowed by the rate limiter. | |
uri_dictionary_name | string | The name of an Edge Dictionary containing URIs as keys. If not defined or null, all origin URIs will be rate limited. | |
window_size | integer | Number of seconds during which the RPS limit must be exceeded in order to trigger a violation. | |
created_at | string | Date and time in ISO 8601 format. Read-only. | |
deleted_at | string | Date and time in ISO 8601 format. Read-only. | |
id | string | Alphanumeric string identifying the rate limiter. | |
service_id | string | Alphanumeric string identifying the service. Read-only. | |
updated_at | string | Date and time in ISO 8601 format. Read-only. | |
version | integer | Integer identifying a service version. Read-only. |