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What it is
A fixed-window rate limiter divides time into equal slots and counts requests within each. When a slot’s count reaches the cap, further requests are rejected until the next slot begins, at which point the counter resets to zero.
On the public ring
The Credicorp public ring uses a fixed 60-second window with a cap of 60 requests per IP per route. It is simple and predictable: you know the reset boundary from the Retry-After header. The trade-off of any fixed window is a possible burst at the slot boundary; the public ring’s modest cap makes that a non-issue in practice.
Frequently asked questions
How is fixed-window different from a sliding window?
A fixed window resets on hard boundaries; a sliding window measures the trailing N seconds continuously. The public ring uses fixed windows for simplicity and predictability.
Funding for UK limited companies
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