var cacheManager = require('cache-manager'); var redisStore = require('cache-manager-redis-store').redisStore; var config = { socket: { host: 'localhost', // default value port: 6379, // default value }, password: 'XXXXX', db: 0, ttl: 600 }; var redisCache = cacheManager.caching({ store: await redisStore(config), }); // listen for redis connection error event var redisClient = redisCache.store.getClient(); redisClient.on('error', (error) => { // handle error here console.log(error); }); var ttl = 5; await redisCache.set('foo', 'bar', { ttl: ttl }); // You can use either a Promise... var result = await redisCache.get('foo'); console.log(result); // ...or a callback redisCache.get('foo', (err, result) => { if (err) { // handle error here } console.log(result); }); // >> 'bar' console.log(await redisCache.del('foo')); // >> 1 function getUser(id, cb) { setTimeout(() => { console.log("Returning user from slow database."); cb(null, { id: id, name: 'Bob' }); }, 100); } var userId = 123; var key = `user_${userId}`; // Note: ttl is optional in wrap() redisCache.wrap(key, (cb) => { getUser(userId, cb); }, { ttl: ttl }, (err, user) => { console.log(user); // Second time fetches user from redisCache redisCache .wrap(key, () => getUser(userId)) .then(console.log) .catch(err => { // handle error }); });

var cacheManager = require('cache-manager'); var redisStore = require('cache-manager-redis-store').redisStore; var redisCache = cacheManager.caching({ store: await redisStore({ ...config, db: 0, ttl: 600 }) }); var memoryCache = cacheManager.caching({ store: 'memory', max: 100, ttl: 60 }); var multiCache = cacheManager.multiCaching([memoryCache, redisCache]); var userId2 = 456; var key2 = `user_${userId2}`; // Set value in all caches await multiCache.set('foo2', 'bar2', { ttl: ttl }); // Fetches from highest priority cache that has the key var result = await multiCache.get('foo2'); console.log(result); // >> 'bar2' // Delete from all caches await multiCache.del('foo2'); // Note: ttl is optional in wrap multiCache.wrap(key2, (cb) => { getUser(userId2, cb); }, (err, user) => { console.log(user); // Second time fetches user from memoryCache, since it's highest priority. // If the data expires in the memory cache, the next fetch would pull it from // the 'someOtherCache', and set the data in memory again. multiCache.wrap(key2, (cb) => { getUser(userId2, cb); }, (err, user) => { console.log(user); }); });