Claude Code api

WebSocket Connection Dropped Unexpectedly

Real-time features using WebSocket connections drop unexpectedly. Client loses connection to server with no reconnection attempt. Users experience gaps in real-time updates or are suddenly disconnected.

Connection works initially but doesn't handle network interruptions or server resets gracefully.

Error Messages You Might See

WebSocket closed unexpectedly Connection lost without reconnect Real-time updates stop suddenly
WebSocket closed unexpectedlyConnection lost without reconnectReal-time updates stop suddenly

Common Causes

  1. No heartbeat/ping-pong to keep connection alive
  2. No reconnection logic, drops permanently on disconnection
  3. Server timeout killing idle connections
  4. Network interruption not detected by client
  5. Large messages causing buffer overflow and disconnect

How to Fix It

Implement ping-pong heartbeat: server sends ping every 30s, client responds pong. Implement auto-reconnect with exponential backoff: 1s, 2s, 4s, etc. Set reasonable timeouts. Handle onclose event to trigger reconnect. Queue messages while disconnected, flush on reconnect. Monitor connection state in UI: show 'offline' badge when disconnected.

Real developers can help you.

Jaime Orts-Caroff Jaime Orts-Caroff I'm a Senior Android developer, open to work in various fields Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure Nam Tran Nam Tran 10 years as fullstack developer Victor Denisov Victor Denisov Developer Yovel Cohen Yovel Cohen I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well. Daniel Vázquez Daniel Vázquez Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting. Franck Plazanet Franck Plazanet I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth. Core Expertise: 🚀 Leadership: Managing and coaching teams of 15+ engineers, fostering a culture of accountability and continuous improvement. 🏗️ Architecture: Enterprise Core Systems, Multi-system Integration (ERP/API/ETL), and Core Database Structure. ☁️ Cloud & Scale: AWS Expert; architected systems handling 10B+ monthly requests and managing 100k+ SKUs. 📈 Business Impact: Aligning tech strategy with P&L goals to drive $70k+ in monthly recurring revenue. I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

Get Help

Frequently Asked Questions

How to keep WebSocket alive?

Implement ping-pong. Server sends ping frame every 30s. Client responds pong. Resets timeout counter.

How to reconnect automatically?

onclose event triggers reconnect with exponential backoff: setTimeout(() => connect(), delay). Delay grows: 1s, 2s, 4s, etc.

Should messages be queued while offline?

Yes. Store in array while disconnected. On reconnect, flush queue: queue.forEach(msg => send(msg)).

Related Claude Code Issues

Can't fix it yourself?
Real developers can help.

You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.

Get Help