@mark01/express-utils/lib/middlewares/rate-limit.js

npm package that contains utilities for express.js

import rateLimiter from 'express-rate-limit';
import { RedisStore } from 'rate-limit-redis';
import { AppError } from '../error';
export const rateLimit = (redis, max, prefix = 'common', minutes = 15) => {
    const store = new RedisStore({
        prefix: `rl-${prefix}:`,
        sendCommand: (...args) => redis.call(...args),
    });
    return rateLimiter({
        store,
        max,
        windowMs: minutes * 60 * 1000,
        standardHeaders: true,
        legacyHeaders: false,
        handler(_, __, next) {
            next(new AppError(`Too many requests! Please try again in ${minutes} minute(s)!`, 429));
        },
    });
};
export default rateLimit;