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Rate Limiting

The Rate Limiting Policy governs the number of times requests made to an API within a specified time period. The requests can be filtered by user, application or API and can set the level of granularity for the time period to second, minute, hour, day, month or year. The intended use of this policy is for fine grained processing, for example limiting the requests to 10 per second.

Configuration Options

OptionTypeDescriptionPossible ValuesDefault
# of requests IntegerNumber of requests that must be received before the policy will trigger.The maximum value you can specify is 9007199254740991 (253 - 1).-
Granularity EnumThe element for which the requests are counted.

Client
User
API
IP Address

None
Period EnumThe time period over which the policy is applied.

Second
Minute
Hour
Day
Month
Year

None
Limit Response Header StringOptional. HTTP response header the API Management will use to store the limit being applied.-X-RateLimit-Limit
Remaining Response Header StringOptional. HTTP response header the API Management will use to store how many requests remain before the limit is reached.-X-RateLimit-Remaining
Reset Response Header StringOptional. HTTP response header the API Management will use to store the number of seconds until the limit is reset.-X-RateLimit-Reset
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