rate-limiter-custom/dist/fixedWindow.js

A fast, customizable, and efficient rate-limiting middleware for Express in TypeScript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fixedWindowRateLimiter = fixedWindowRateLimiter;
const requestCounts = new Map();
function fixedWindowRateLimiter(options) {
    setInterval(() => {
        requestCounts.clear(); // Reset every windowMs
    }, options.windowMs);
    return (req, res, next) => {
        var _a;
        const ip = (_a = req.ip) !== null && _a !== void 0 ? _a : "unknown";
        const currentCount = requestCounts.get(ip) || 0;
        if (currentCount >= options.maxRequests) {
            return res.status(429).json({ message: options.errorMessage || "Too many requests, please try again later." });
        }
        requestCounts.set(ip, currentCount + 1);
        next();
    };
}