limitguard-elsolya

Distributed rate limiting with fixed-window, sliding-window, and token-bucket algorithms.

Install

npm install limitguard-elsolya

Usage

import { createRateLimiter, createMemoryRateLimitStore } from "limitguard-elsolya";

const limiter = createRateLimiter({
  store: createMemoryRateLimitStore(),
  algorithm: "sliding-window",
  limit: 100,
  window: "1m",
  key: (ctx) => ctx.userId ?? ctx.ip ?? "anonymous",
});

const [result] = await limiter.consume({ userId: "user_1", ip: "127.0.0.1" });

Stores

• Memory — createMemoryRateLimitStore()
• Redis — createRedisRateLimitStore({ client })
• PostgreSQL — createPostgresRateLimitStore({ client }) + POSTGRES_MIGRATION

License

MIT