Provides a default throttling rate if the delegating throttling policy returns null.


   "type": "ThrottlingFilter",
   "config": {
       "requestGroupingPolicy": expression,
       "throttlingRatePolicy": {
           "type": "DefaultRateThrottlingPolicy",
           "config": {
               "delegateThrottlingRatePolicy": reference or inline declaration,
               "defaultRate": {
                   "numberOfRequests": integer,
                   "duration": duration string


"delegateThrottlingRatePolicy": reference, required

The policy to which the default policy delegates the throttling rate. The DefaultRateThrottlingPolicy delegates management of throttling to the policy specified by delegateThrottlingRatePolicy.

If delegateThrottlingRatePolicy returns null, the defaultRate is used.

For information about policies to use, see "MappedThrottlingPolicy" and "ScriptableThrottlingPolicy".

"defaultRate": object, required

The default throttling rate to apply if the delegating policy returns null.

"numberOfRequests": integer, required

The number of requests allowed through the filter in the time specified by "duration".

"duration": duration string, required

A time interval during which the number of requests passing through the filter is counted.

For information about supported formats for duration, see duration.


For an example of how this policy is used, see "Example of a Scriptable Throttling Policy" .

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