Hi, I was wondering if HAProxy has the capability to rate limit HTTP POSTs based on the response from the backend.
The clients identify themselves with an token passed as query parameter in the POST. I would like to implement the business logic for calculating rate limits in my backend app. If the backend decides that a limit has been breached for a particular client token, it would response with a certain non-2xx code and would supply a TTL value to express the period of time that the client will be throttled. Hence I was wondering whether it is possible to configure HAProxy to cache the fact that a given client token is to be throttled for the period expressed by the TTL. Any help is appreciated, Cheers, Ben
