Handling Multiple User Sessions in Node.js with Express and Redis - Session Expiry Issues
I'm updating my dependencies and I've hit a wall trying to I'm building a Node.js application using Express and Redis to manage user sessions, but I'm running into issues with session expiry. I set up the session middleware like this: ```javascript const session = require('express-session'); const RedisStore = require('connect-redis')(session); const redisClient = require('redis').createClient(); app.use(session({ store: new RedisStore({ client: redisClient }), secret: 'mySecret', resave: false, saveUninitialized: false, cookie: { maxAge: 1000 * 60 * 10 } // 10 minutes })); ``` The question arises when multiple users log in. It seems that the session for one user is expiring unexpectedly, while others remain active. Here’s the scenario: 1. User A logs in and their session is established with a 10-minute expiry. 2. User B logs in shortly after, and their session also gets created without any issues. 3. However, after a few minutes, User A gets logged out even though their activity is still ongoing. I see the following warning in the server logs: ``` Warning: Session is expired or invalid. ``` I’ve confirmed that the Redis store is set up correctly and that sessions are being saved. I tried adjusting the `maxAge` in the cookie settings, but it didn’t seem to have any effect. I also checked for any potential race conditions or shared state, but I couldn’t find any. I’m using Redis v3.0.0 and express-session v1.17.1. Is there something I’m missing in the configuration or is there a best practice I should follow to avoid this scenario? How can I ensure that user sessions are handled correctly without interfering with each other? I'm coming from a different tech stack and learning Javascript. I'm using Javascript LTS in this project. Any pointers in the right direction?