Limit Count Advanced

Parameters

See plugin common configurations for configuration options available to all plugins.

All parameters can be configured using environment variables. For example, you can save Redis password to an environment variable REDIS_PASSWORD and configure redis_password to be $env://REDIS_PASSWORD.

count
integer
required
vaild vaule:
greater than 0
The maximum number of requests allowed within a given time interval.
time_window
integer
required
vaild vaule:
greater than 0
The time interval corresponding to the rate limiting count in seconds.
window_type
string
default: fixed
vaild vaule:
fixed or sliding
Rate limiting algorithm, fixed window or sliding window.
key_type
string
default: var
vaild vaule:
one of the var, var_combination, or constant
The type of key.
If the key_type is var, the key is interpreted a variable.
If the key_type is var_combination, the key is interpreted as a combination of variables.
If the key_type is constant, the key is interpreted as a constant.
key
string
default: remote_addr
The key to count requests by.
If the key_type is var, the key is interpreted a variable. The variable does not need to be prefixed by a dollar sign ($). See built-in variables for avaialble variables.
If the key_type is var_combination, the key is interpreted as a combination of variables. All variables should be prefixed by dollar signs ($). For example, to configure the key to use a combination of two request headers custom-a and custom-b, the key should be configured as $http_custom_a $http_custom_b.
If the key_type is constant, the key is interpreted as a constant value.
rejected_code
integer
default: 503
vaild vaule:
between 200 and 599 inclusive
The HTTP status code returned when a request is rejected for exceeding the threshold.
rejected_msg
string
default: 503
vaild vaule:
any non-empty string
The response body returned when a request is rejected for exceeding the threshold.
policy
string
default: local
vaild vaule:
one of the local, redis, or redis-cluster
The policy for rate limiting counter. If it is local, the counter is stored in memory locally. If it is redis, the counter is stored on a Redis instance. If it is redis-cluster, the counter is stored in a Redis cluster.
allow_degradation
boolean
default: false
if true, allow APISIX to continue handling requests without the plugin when the plugin or its dependencies become unavailable.
show_limit_quota_header
boolean
default: true
if true, include X-RateLimit-Limit to show the total quota and X-RateLimit-Remaining to show the remaining quota in the response header.
group
string
vaild vaule:
non-empty
The group ID for the plugin, such that routes of the same group can share the same rate limiting counter.
redis_host
string
The address of the Redis node. Required when policy is redis.
redis_port
integer
default: 6379
vaild vaule:
greater or equal to 1
The port of the Redis node when policy is redis.
redis_username
string
The username for Redis if Redis ACL is used. If you use the legacy authentication method requirepass, configure only the redis_password. Used when policy is redis.
redis_password
string
default: 6379
The password of the Redis node when policy is redis or redis-cluster.
redis_database
integer
default: 0
vaild vaule:
greater or equal to 0
The database number in Redis when policy is redis.
redis_ssl
boolean
default: false
if true, use SSL to connect to Redis cluster when policy is redis.
redis_ssl_verify
boolean
default: false
if true, verify the server SSL certificate when policy is redis.
redis_timeout
integer
default: 1000
vaild vaule:
greater or equal to 1
The Redis timeout value in milliseconds when policy is redis or redis-cluster.
redis_cluster_nodes
array[string]
The list of the Redis cluster nodes with at least two addresses. Required when policy is redis-cluster.
redis_cluster_name
string
The name of the Redis cluster. Required when policy is redis-cluster.
redis_cluster_ssl
boolean
default: false
if true, use SSL to connect to Redis cluster when policy is redis-cluster.
redis_cluster_ssl_verify
boolean
default: false
if true, verify the server SSL certificate when policy is redis-cluster.
sync_interval
number
default: -1
vaild vaule:
greater than or equal to 0.1, or the default -1
The frequency of synchronizing counter data to Redis. Available only in Enterprise.
The sync_interval value should be smaller than time_window. A value of 1 results in synchronizing counter data every second. A value of -1 yields no change in synchronizing behaviour, i.e. counter data will be synchronized for each request.

Parameters​

Parameters