Imported from upstash/ratelimit-js (skills/SKILL.md). Install upstream with npx skills add upstash/ratelimit-js --skill skills. Copyright stays with the author.

Rate Limit TS SDK

Quick Start

• Install the SDK and connect to Redis.
• Create a rate limiter and apply it to incoming operations.

Example:

import { Ratelimit } from "@upstash/ratelimit";
import { Redis } from "@upstash/redis";

const redis = new Redis({ url: "<url>", token: "<token>" });
const limiter = new Ratelimit({ redis, limiter: Ratelimit.slidingWindow(5, "10s") });

const { success } = await limiter.limit("user-id");
if (!success) {
  // throttled
}

Other Skill Files

• algorithms.md: Describes all available rate‑limiting algorithms and how they behave.
• pricing-cost.md: Explains pricing, Redis cost implications, and operational considerations.
• features.md: Lists SDK features such as prefixes, custom keys, and behavioral options.
• methods-getting-started.md: Full method reference for the SDK's API and getting started guide.
• traffic-protection.md: Guidance on applying rate limiting for traffic shaping, abuse prevention, and protection patterns.