function makeIpRateLimiter
makeIpRateLimiter(
prefix: string,
maxAttempts: number,
lockoutMs: number,
): { isLimited: (ip: string) => Promise<boolean>; record: (ip: string) => Promise<boolean>; }

Build a namespaced per-IP limiter: isLimited checks the lockout, record counts one attempt (locking out at maxAttempts for lockoutMs and returning true once locked). Each caller picks its own prefix so counters never collide across features.

Parameters

prefix: string
maxAttempts: number
lockoutMs: number

Return Type

{ isLimited: (ip: string) => Promise<boolean>; record: (ip: string) => Promise<boolean>; }

Usage

import { makeIpRateLimiter } from "doc.ts";