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.

Pratik Pratik SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software. ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. Prakash Prajapati Prakash Prajapati I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale. Costea Adrian Costea Adrian Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system. Caio Rodrigues Caio Rodrigues I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures. I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** Rudra Bhikadiya Rudra Bhikadiya I build and fix web apps across Next.js, Node.js, and DBs. Comfortable jumping into messy code, broken APIs, and mysterious bugs. If your project works in theory but not in reality, I help close that gap. Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups Nam Tran Nam Tran 10 years as fullstack developer

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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)).

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