Real-time Notifications System

[a7medsa22]

Description

Implement real-time notification system using WebSockets for instant updates on appointments, medical records, and system events.

Requirements

• WebSocket integration with NestJS
• Real-time notifications for appointment changes
• Medical record updates notifications
• User verification status notifications
• Notification persistence and history

Notification Types

• Appointment booked/cancelled/rescheduled
• Medical record added/updated
• Account verification status change
• Doctor schedule changes
• System maintenance notifications

Acceptance Criteria

• WebSocket gateway implementation
• Notification service with different types
• Client connection management
• Notification persistence in database
• Room-based notifications (user-specific)
• Fallback for offline users (email/SMS)

Technical Implementation

• Use @nestjs/websockets
• Room-based architecture for user-specific notifications
• Message queuing for offline delivery
• Notification templates system`