Basic rate-limiting middleware for Express. Use to limit repeated requests to public APIs and/or endpoints such as password reset. Plays nice with express-slow-down and ratelimit-header-parser.

The full documentation is available on-line.

import { rateLimit } from 'express-rate-limit'

const limiter = rateLimit({
	windowMs: 15 * 60 * 1000, // 15 minutes
	limit: 100, // Limit each IP to 100 requests per `window` (here, per 15 minutes).
	standardHeaders: 'draft-7', // draft-6: `RateLimit-*` headers; draft-7: combined `RateLimit` header
	legacyHeaders: false, // Disable the `X-RateLimit-*` headers.
	// store: ... , // Redis, Memcached, etc. See below.
})

// Apply the rate limiting middleware to all requests.
app.use(limiter)

The rate limiter comes with a built-in memory store, and supports a variety of external data stores.

All function options may be async. Click the name for additional info and default values.

Sponsored by Zuplo a fully-managed API Gateway for developers. Add dynamic rate-limiting, authentication and more to any API in minutes. Learn more at zuplo.com

Thanks to Mintlify for hosting the documentation at express-rate-limit.mintlify.app

Finally, thank you to everyone who's contributed to this project in any way! 🫶

If you encounter a bug or want to see something added/changed, please go ahead and open an issue! If you need help with something, feel free to start a discussion!

If you wish to contribute to the library, thanks! First, please read the contributing guide. Then you can pick up any issue and fix/implement it!

MIT © Nathan Friedly, Vedant K