bigcapital/server/src/api/middleware/RateLimiterMiddleware.ts

import { Container } from 'typedi';
import { Request, Response, NextFunction } from 'express';

/**
 * Rate limiter middleware.
 */
export default (req: Request, res: Response, next: NextFunction) => {
  const requestRateLimiter = Container.get('rateLimiter.request');

  requestRateLimiter.attempt(req.ip).then(() => {
    next();
  })
  .catch(() => {
    res.status(429).send('Too Many Requests');
  });
}