Spaces:
Sleeping
Sleeping
| /** | |
| * React hook to keep the backend warm during user sessions. | |
| * Pings the /health endpoint every 5 minutes while the user is active. | |
| * This prevents Render free-tier spin-down (15-minute idle timeout). | |
| */ | |
| import { useEffect, useRef } from 'react'; | |
| import { keepAlive } from '../services/api'; | |
| const PING_INTERVAL_MS = 5 * 60 * 1000; // 5 minutes | |
| export function useKeepAlive(enabled: boolean = true) { | |
| const intervalRef = useRef<ReturnType<typeof setInterval> | null>(null); | |
| useEffect(() => { | |
| if (!enabled) return; | |
| // Initial ping on mount | |
| keepAlive().catch(() => {}); | |
| // Periodic ping every 5 minutes | |
| intervalRef.current = setInterval(() => { | |
| keepAlive().catch(() => {}); | |
| }, PING_INTERVAL_MS); | |
| return () => { | |
| if (intervalRef.current) { | |
| clearInterval(intervalRef.current); | |
| } | |
| }; | |
| }, [enabled]); | |
| } | |