6eee14f8af
- Add admin dashboard with sync controls and data browser - Implement RMM, Auvik, and Addigy organization mappings - Add chunked ticket sync with progress tracking - Implement entity sync service with rate limiting - Add analytics engine and performance optimizer - Create data browser for all PSA entities - Add navigation components and UI improvements - Implement background processing and sync services - Add comprehensive documentation and migration scripts - Update configuration items with multi-system support - Enhance contact management and purchase history - Add issue type assignment and LLM analyzer - Improve error handling and logging utilities
116 lines
2.8 KiB
TypeScript
116 lines
2.8 KiB
TypeScript
/**
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* Rate Limiter Service
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* Implements token bucket algorithm for API rate limiting
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* Limits requests to 10 per second for Autotask API
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*/
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export class RateLimiter {
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private maxRequestsPerSecond: number;
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private requestQueue: Array<() => void> = [];
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private requestTimes: number[] = [];
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private processing = false;
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constructor(maxRequestsPerSecond: number = 10) {
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this.maxRequestsPerSecond = maxRequestsPerSecond;
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}
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/**
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* Throttle a function call to respect rate limits
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* @param fn Function to execute with rate limiting
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* @returns Promise that resolves when function completes
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*/
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async throttle<T>(fn: () => Promise<T>): Promise<T> {
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return new Promise((resolve, reject) => {
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this.requestQueue.push(async () => {
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try {
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const result = await fn();
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resolve(result);
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} catch (error) {
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reject(error);
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}
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});
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this.processQueue();
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});
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}
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/**
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* Process the request queue with rate limiting
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*/
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private async processQueue(): Promise<void> {
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if (this.processing || this.requestQueue.length === 0) {
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return;
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}
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this.processing = true;
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while (this.requestQueue.length > 0) {
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await this.waitIfNeeded();
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const request = this.requestQueue.shift();
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if (request) {
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this.requestTimes.push(Date.now());
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await request();
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}
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}
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this.processing = false;
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}
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/**
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* Wait if we've hit the rate limit
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*/
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private async waitIfNeeded(): Promise<void> {
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const now = Date.now();
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const oneSecondAgo = now - 1000;
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// Remove request times older than 1 second
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this.requestTimes = this.requestTimes.filter(time => time > oneSecondAgo);
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// If we've hit the limit, wait until we can make another request
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if (this.requestTimes.length >= this.maxRequestsPerSecond) {
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const oldestRequest = this.requestTimes[0];
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const waitTime = 1000 - (now - oldestRequest) + 10; // Add 10ms buffer
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if (waitTime > 0) {
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await this.sleep(waitTime);
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}
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}
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}
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/**
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* Sleep for specified milliseconds
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*/
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private sleep(ms: number): Promise<void> {
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return new Promise(resolve => setTimeout(resolve, ms));
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}
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/**
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* Get current queue length
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*/
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getQueueLength(): number {
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return this.requestQueue.length;
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}
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/**
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* Get number of requests in the last second
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*/
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getCurrentRequestCount(): number {
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const oneSecondAgo = Date.now() - 1000;
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return this.requestTimes.filter(time => time > oneSecondAgo).length;
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}
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/**
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* Clear the queue and reset
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*/
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reset(): void {
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this.requestQueue = [];
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this.requestTimes = [];
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this.processing = false;
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}
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}
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// Export singleton instance for Autotask API (10 req/sec)
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export const autotaskRateLimiter = new RateLimiter(10);
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export default autotaskRateLimiter;
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