[PR #2295] RustChain Block Explorer: Real-Time WebSocket Feed — 75 RTC

[kuanglaodi2-sudo]

Bounty #2295: RustChain Block Explorer: Real-Time WebSocket Feed (75 RTC)

Claimed by: kuanglaodi2-sudo
Wallet: C4c7r9WPsnEe6CUfegMU9M7ReHD1pWg8qeSfTBoRcLbg

What Was Implemented

Updated explorer/enhanced-explorer.html with real-time WebSocket integration using Socket.IO.

Real-Time Features Added

• WebSocket connection to RustChain event feed at /ws/feed
• Live block notifications — new slots appear instantly without page refresh
• Live attestation feed — miner attestations stream in real-time with toast notifications
• Epoch settlement alerts — toast + sound when epoch advances
• Auto-reconnect with exponential backoff (3s → 30s max)
• Connection status indicator — colored dot in header (green=connected, amber=connecting, red=offline)
• Sound notifications — press S key to toggle epoch settlement chimes

Bonus Features (10 RTC)

• Toast notifications — up to 3 simultaneous toast popups for live events
• Miner count sparkline — canvas-based attestation rate chart in real-time
• Live table updates — new attestations highlighted with green flash in Recent Miners table

Technical Details

• Uses Socket.IO client (CDN) for WebSocket with automatic fallback to polling
• Subscribes to filtered events: new_block, attestation, epoch_settlement
• nginx-compatible: works behind existing proxy configuration
• Graceful degradation: falls back to 30s polling if WebSocket unavailable

nginx Configuration

location /ws/feed {
    proxy_pass http://127.0.0.1:5001;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_read_timeout 86400;
}

Files Changed

• explorer/enhanced-explorer.html — Added Socket.IO client, WebSocket status indicator, live event handlers, toast notifications, sparkline canvas, sound notifications
• explorer/ws_README.md — Documentation

[github-actions]

Welcome to RustChain! Thanks for your first pull request.

Before we review, please make sure:

• Your PR has a BCOS-L1 or BCOS-L2 label
• New code files include an SPDX license header
• You've tested your changes against the live node

Bounty tiers: Micro (1-10 RTC) | Standard (20-50) | Major (75-100) | Critical (100-150)

A maintainer will review your PR soon. Thanks for contributing!

[Scottcjn]

Thanks for your interest! These PRs have issues: PR #1748 destructively overwrites the project README, multiple PRs contain placeholder data, and 7 high-value bounty claims in one day from a 22-day account suggests bulk generation. Please review our contribution guidelines — start with one small, complete PR and build from there. Quality over quantity.