Creates and initializes a
MappedThrottlingPolicy in a heap environment.
Configuration options:
{
"type": "MappedThrottlingPolicy",
"config": {
"throttlingRateMapper" : expression<String> [REQUIRED - The expression that will be
evaluated to lookup for a
throttling rate.]
"throttlingRatesMapping" : { [REQUIRED - This is a in memory map used to
lookup the throttling rate to
apply.]
"<throttlingRateKey>" { : String [REQUIRED - The value to match the
result of the expression
throttlingRateMapper.]
"numberOfRequests" : integer [REQUIRED - The number of requests allowed
to go through this filter during
the duration window.]
"duration" : duration [REQUIRED - The time window during which the
incoming requests are counted.]
}
},
"defaultRate" { : reference [OPTIONAL - the default rate to apply if
there is no match]
"numberOfRequests" : integer [REQUIRED - The number of requests allowed
to go through this filter during
the duration window.]
"duration" : duration [REQUIRED - The time window during which the
incoming requests are counted.]
}
}
}
Example : apply different throttling rates depending of the header 'Origin'. If the header is not specified, let's
apply a default rate of 15 requests per second.
{
"type": "MappedThrottlingPolicy",
"config": {
"throttlingRateMapper" : "${request.headers['Origin'][0]}"
"throttlingRateMapping" : {
"http://www.alice.com" : {
"numberOfRequests" : 30,
"duration" : "1 hour"
},
"http://www.bob.com" : {
"numberOfRequests" : 42,
"duration" : "1 minute"
}
},
"defaultRate" : {
"numberOfRequests" : 15,
"duration" : "1 sec"
}
}
}