apicache

import express from 'express'; import apicache from 'apicache'; import redis from 'redis'; // Optional: for Redis integration const app = express(); // --- Configuration for in-memory cache --- let cache = apicache.middleware; // --- Configuration for Redis cache (uncomment to use) --- // const redisClient = redis.createClient({ url: process.env.REDIS_URL ?? 'redis://localhost:6379' }); // redisClient.on('error', (err) => console.error('Redis Client Error', err)); // redisClient.connect(); // Connect the client // let cache = apicache.options({ redisClient }).middleware; // Basic cached route (in-memory or Redis based on config above) app.get('/api/data', cache('1 minute'), (req, res) => { console.log('Fetching fresh data for /api/data'); res.json({ timestamp: new Date(), value: Math.random() }); }); // Route to check cache performance and index app.get('/api/cache/performance', (req, res) => { res.json(apicache.getPerformance()); }); app.get('/api/cache/index', (req, res) => { res.json(apicache.getIndex()); }); // Route to manually clear cache (e.g., all entries, or a specific target/group) app.get('/api/cache/clear/:target?', (req, res) => { const target = req.params.target || 'all'; // 'all' clears everything if no target is specified console.log(`Clearing cache for target: ${target}`); res.json(apicache.clear(target)); }); const PORT = process.env.PORT || 3000; app.listen(PORT, () => { console.log(`Server running on http://localhost:${PORT}`); console.log('Try visiting http://localhost:3000/api/data multiple times quickly.'); console.log('Then try http://localhost:3000/api/cache/clear'); });