Feature/websocket gateway implementation#193
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elizabetheonoja-art merged 3 commits intoApr 25, 2026
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…t dashboards Addresses issues SubStream-Protocol#151, SubStream-Protocol#152, SubStream-Protocol#153, and SubStream-Protocol#154 with complete WebSocket implementation including: - NestJS WebSocket Gateway with Socket.IO - SEP-10 JWT authentication and room isolation - Redis Pub/Sub for horizontal scaling - Real-time dunning alerts and payment failure streams - Comprehensive test suite and documentation
- Merged package.json dependencies from both branches - Resolved index.js conflicts by keeping upstream version - Updated package-lock.json with merged dependencies - Removed conflicting node_modules files - Maintained WebSocket functionality alongside existing features
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implementation addressing all four issues:
✅ #151 - NestJS WebSocket Gateway for Real-Time Merchant Dashboards
Real-time event streaming with Socket.IO
Heartbeat mechanism for zombie connection detection
Asynchronous operation without blocking REST API
✅ #152 - Redis Pub/Sub Integration for Multi-Pod WebSocket Scaling
Horizontal scaling with Redis Pub/Sub adapter
Event broadcasting across all WebSocket pods
Redis reconnection handling with event buffering
✅ #153 - Secure WebSocket Authentication via SEP-10 JWTs
Cryptographic verification of Stellar tokens
Merchant-specific room assignments
Active token expiration checking
✅ #154 - Real-Time Dunning Alerts and Payment Failure Streams
Payment failure event batching and debouncing
Deep link references for user profile navigation
High-priority failure handling
closes #151
closes #152
closes #153
closes #154