A production-grade blueprint for building horizontally scalable WebSocket hubs with Redis coordination and connection management.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install websocket-hub-patterns
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install websocket-hub-patterns using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is WebSocket Hub Patterns?
This skill provides a comprehensive architecture for developers building real-time bidirectional communication systems that need to scale beyond a single server instance. By utilizing Openclaw Skills for WebSocket management, you gain access to proven patterns for lazy Redis subscriptions, connection registries, and graceful shutdowns. It bridges the gap between simple socket implementations and high-availability infrastructure, ensuring that your real-time gateway remains performant and reliable even under heavy concurrent load.
WebSocket Hub Patterns Use Cases
- Scaling chat and messaging platforms across multiple backend nodes to support millions of users.
- Coordinating real-time state in collaborative editing and productivity tools across distributed instances.
- Maintaining live dashboard connections with efficient resource management and automatic cleanup.
- Implementing resilient gateways that handle load balancer timeouts through automated ping/pong cycles.
How WebSocket Hub Patterns Works
- The hub initializes internal state maps to track local active connections and channel-based subscriptions.
- When a client connects, the hub registers the connection locally and updates a distributed Redis registry for cross-instance visibility.
- Upon joining a channel, the system employs lazy subscription logic, only connecting to Redis Pub/Sub if it is the first local subscriber on that node.
- Messages received via Redis are forwarded into the hub's internal broadcast loop for local distribution.
- A dedicated write pump manages outbound messages, utilizing batch draining and pings to maintain connection health.
- During shutdown, the hub gracefully closes all Redis subscriptions and notifies clients to prevent orphaned registry data.
WebSocket Hub Patterns Setup
To get started with these architectural patterns, install the skill via the CLI:
npx clawhub@latest install websocket-hub-patterns
You should have a Go development environment and access to a Redis instance to leverage the horizontal scaling features provided by these Openclaw Skills.
WebSocket Hub Patterns Data Schema & Taxonomy
| Component | Description |
|---|---|
| Hub Struct | Manages local connection state, Redis clients, and synchronization locks. |
| Connection Registry | Uses Redis keys like ws:conn:{id} to track client locations and metadata. |
| Instance Info | Periodically heartbeats instance health and connection counts to Redis. |
| Event Object | A standardized payload format containing the target channel and raw message data. |
WebSocket Hub Patterns Advanced Features
- Lazy Redis subscription management to significantly reduce network overhead in multi-channel environments.
- Automated instance heartbeat system to prune dead connections from the global registry.
- Batch-draining write pumps that protect the server from slow-client bottlenecks.
- Comprehensive graceful shutdown hooks for clean resource release and client notification.
- Support for multi-instance routing to enable targeted messaging across a distributed gateway fleet.
SKILL.md
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