Cursor auth

Redis Session Storage Fails After Cursor Refactor

User sessions are no longer persisting to Redis after Cursor reorganized your session middleware code. Users are logged out on page refresh, defeating the purpose of persistent sessions.

The Redis client may be misconfigured or the session store initialization was altered during the refactoring.

Error Messages You Might See

Error: connect ECONNREFUSED 127.0.0.1:6379 RedisStore requires a redis client Session undefined Failed to serialize session
Error: connect ECONNREFUSED 127.0.0.1:6379RedisStore requires a redis clientSession undefinedFailed to serialize session

Common Causes

  1. Redis connection not established before session middleware initialization
  2. Session store options (ttl, prefix) changed without updating retrieval logic
  3. RedisStore instantiation missing or using wrong Redis client instance
  4. Session data serialization changed, making old sessions unreadable
  5. Redis key prefix changed, causing session lookups to fail

How to Fix It

Ensure Redis client connects before app.use(sessionMiddleware). Verify RedisStore configuration matches retrieval: new RedisStore({client: redisClient, prefix: 'sess:'}). Check Redis CLI for stored keys: redis-cli KEYS 'sess:*'

Real developers can help you.

Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture Matt Butler Matt Butler Software Engineer @ AWS Matthew Jordan Matthew Jordan I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job. BurnHavoc BurnHavoc Been around fixing other peoples code for 20 years. Daniel Vázquez Daniel Vázquez Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting. MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. Taufan Taufan I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms. Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact. AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Krishna Sai Kuncha Krishna Sai Kuncha Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )

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Frequently Asked Questions

How do I check if sessions are in Redis?

Use redis-cli KEYS 'sess:*' to list sessions. Use redis-cli GET 'sess:sessionid' to view session data.

Why are sessions not surviving restart?

Verify Redis is persisting to disk (RDB or AOF). Check redis.conf configuration.

Related Cursor Issues

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