multibridge/dist/utils/rateLimiter.js

A multi-database connection framework with centralized configuration

"use strict";
/**
 * Simple in-memory rate limiter
 * Prevents excessive connection creation attempts
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.RateLimiter = void 0;
class RateLimiter {
    limits;
    maxRequests;
    windowMs;
    constructor(maxRequests = 10, windowMs = 60000) {
        this.limits = new Map();
        this.maxRequests = maxRequests;
        this.windowMs = windowMs;
    }
    check(key) {
        const now = Date.now();
        const entry = this.limits.get(key);
        if (!entry || now > entry.resetTime) {
            // Create new window
            this.limits.set(key, {
                count: 1,
                resetTime: now + this.windowMs,
            });
            return true;
        }
        if (entry.count >= this.maxRequests) {
            return false; // Rate limit exceeded
        }
        entry.count++;
        return true;
    }
    reset(key) {
        this.limits.delete(key);
    }
    clear() {
        this.limits.clear();
    }
}
exports.RateLimiter = RateLimiter;