node_redis_client_set_get_with_ttl_expiration.ts

1import { createClient } from 'redis';
2
3async function redisCachingQuickstart() {
4  // 1. Initialize the Redis client
5  const client = createClient({
6    url: 'redis://localhost:6379'
7  });
8
9  client.on('error', (err) => console.error('Redis Client Error', err));
10
11  // 2. Connect to the server
12  await client.connect();
13
14  // 3. Set a value with a 10-second expiration (standard caching pattern)
15  // 'EX' sets the expiry time in seconds
16  await client.set('user:session:123', 'active', {
17    EX: 10
18  });
19
20  // 4. Retrieve the cached value
21  const value = await client.get('user:session:123');
22  console.log('Cached value:', value);
23
24  // 5. Disconnect
25  await client.disconnect();
26}
27
28redisCachingQuickstart().catch(console.error);