pg-ratelimit

PostgreSQL-backed rate limiting for Node.js. No Redis required.

import { Pool } from "pg";
import { Ratelimit } from "pg-ratelimit";

const pool = new Pool({ connectionString: process.env.DATABASE_URL });

const ratelimit = new Ratelimit({
  pool,
  limiter: Ratelimit.slidingWindow(10, "1m"),
  prefix: "api",
});

const { success } = await ratelimit.limit("user:123");

Features

• Three algorithms - fixed window, sliding window, token bucket
• Zero runtime deps - just pg as a peer dependency
• Serverless-safe - no background processes, probabilistic inline cleanup, no long-lived state
• Upstash-compatible API - same limit(), blockUntilReady(), getRemaining(), resetUsedTokens() surface

Install

npm install pg-ratelimit pg

Docs

benjick.js.org/pg-ratelimit

License

MIT