Notification Module Documentation
Overview
The Notification module provides comprehensive notification and messaging functionality for the telecommunications platform. This module handles system notifications, email communications, and notification preferences across the entire application.
Purpose
- Manage system-wide notifications and alerts
- Handle email notification composition and delivery
- Provide notification preference management
- Support multiple notification channels and types
Module Information
- Path:
src/app/notification - Module File:
notification.module.ts - Routing File:
notification-routing.module.ts - Lazy Loaded: Yes
Components
SystemNotificationComponent
- File:
system-notification/system-notification.component.ts - Purpose: System notification management interface
- Features:
- System alert creation and management
- Notification scheduling and automation
- Priority level configuration
- Target audience selection
- Notification template management
- Real-time notification status tracking
ComposemailComponent
- File:
composemail/composemail.component.ts - Purpose: Email composition interface
- Features:
- Rich text email composer
- Template selection and customization
- Recipient management (individual/bulk)
- Attachment handling
- Email scheduling
- Preview and send functionality
EmailNotificationComponent
- File:
email-notification/email-notification.component.ts - Purpose: Email notification management
- Features:
- Email notification history
- Delivery status tracking
- Email template management
- Automated email workflows
- Performance metrics
- Bounce and complaint handling
NotificationEmailComponent
- File:
notification-email/notification-email.component.ts - Purpose: Notification-specific email handling
- Features:
- System-generated email notifications
- Event-triggered email sending
- Notification email templates
- Delivery confirmation tracking
- Error handling and retry logic
EmailSubscriptionSettingComponent
- File:
email-subscription-setting/email-subscription-setting.component.ts - Purpose: Email subscription and preference management
- Features:
- User subscription preferences
- Email frequency settings
- Notification category management
- Opt-in/opt-out controls
- Preference history tracking
- Bulk preference updates
Services
NotificationService
- File:
notification.service.ts - Purpose: Core notification operations
- Key Methods:
- Notification creation and management
- Email composition and sending
- Subscription management
- Template operations
- Delivery tracking
- Preference handling
File Structure
``
src/app/notification/
├── system-notification/
│ ├── system-notification.component.ts
│ ├── system-notification.component.html
│ ├── system-notification.component.css
│ └── system-notification.component.spec.ts
├── composemail/
│ ├── composemail.component.ts
│ ├── composemail.component.html
│ ├── composemail.component.css
│ └── composemail.component.spec.ts
├── email-notification/
│ ├── email-notification.component.ts
│ ├── email-notification.component.html
│ ├── email-notification.component.css
│ └── email-notification.component.spec.ts
├── notification-email/
│ ├── notification-email.component.ts
│ ├── notification-email.component.html
│ ├── notification-email.component.css
│ └── notification-email.component.spec.ts
├── email-subscription-setting/
│ ├── email-subscription-setting.component.ts
│ ├── email-subscription-setting.component.html
│ ├── email-subscription-setting.component.css
│ └── email-subscription-setting.component.spec.ts
├── notification.service.ts
├── notification-routing.module.ts
└── notification.module.ts
`
Dependencies
- Internal Modules:
- SharedModule (UI components, utilities)
- AuthenticationModule (user authentication)
- UsermanagementModule (user data)
- External Libraries:
- Angular Common
- Angular Forms
- Angular Router
- Rich text editor
- Email validation libraries
Routes Configuration
- Base Route:
/notification
Child Routes:
/notification/system - System notifications
/notification/compose - Email composition
/notification/email - Email notifications
/notification/settings - Subscription settings
/notification/templates - Template management
Key Features
System Notifications
- Real-time system alerts
- Priority-based notification levels
- User role-based targeting
- Scheduled notification delivery
- Notification history and tracking
- Custom notification templates
Email Management
- Rich text email composition
- HTML email templates
- Bulk email operations
- Email scheduling and automation
- Attachment support
- Email delivery tracking
Subscription Management
- User preference controls
- Subscription category management
- Opt-in/opt-out functionality
- Frequency settings
- Preference synchronization
- Compliance with email regulations
Template System
- Reusable notification templates
- Dynamic content insertion
- Template versioning
- A/B testing support
- Brand customization
- Responsive email templates
Notification Types
System Notifications
- Alert Types:
- Critical system alerts
- Maintenance notifications
- Feature announcements
- Security notifications
- Performance alerts
Email Notifications
- Categories:
- Account notifications
- Billing alerts
- Service updates
- Marketing communications
- Technical notifications
Event-Triggered Notifications
- User account events
- System status changes
- Service interruptions
- Security events
- Billing events
Integration Points
With Authentication Module
- User authentication for preferences
- Role-based notification access
- Session management
- Permission verification
With User Management Module
- User profile integration
- Contact information access
- Preference synchronization
- User segmentation
With All Application Modules
- Cross-module notification triggers
- System-wide alert distribution
- Module-specific notifications
- Event-driven notifications
Security Features
Data Protection
- Encrypted notification content
- Secure email transmission
- Personal data protection
- GDPR compliance support
Access Control
- Role-based notification access
- Permission-based operations
- Audit trail for notifications
- Secure template management
Email Security
- SPF/DKIM/DMARC compliance
- Anti-spam measures
- Bounce handling
- Complaint processing
Performance Features
- Asynchronous notification processing
- Bulk operation optimization
- Email queue management
- Delivery rate optimization
- Template caching
Usage Guidelines
For System Administrators
1. System Notifications:
- Create and manage system alerts
- Configure notification priorities
- Set up automated notifications
- Monitor delivery status
2. Email Management:
- Manage email templates
- Configure SMTP settings
- Monitor email performance
- Handle delivery issues
For Marketing Teams
1. Email Campaigns:
- Compose marketing emails
- Manage subscriber lists
- Track campaign performance
- Handle unsubscribes
2. Template Management:
- Create email templates
- Test template rendering
- Optimize for deliverability
- Maintain brand consistency
For Users
1. Preference Management:
- Configure notification preferences
- Manage subscription settings
- Control email frequency
- Update contact information
API Integration
Notification Operations
POST /notifications - Create notification
GET /notifications - List notifications
PUT /notifications/{id} - Update notification
DELETE /notifications/{id} - Delete notification
Email Operations
POST /emails/compose - Compose email
POST /emails/send - Send email
GET /emails/status/{id} - Check delivery status
GET /emails/templates - Get templates
Subscription Management
GET /subscriptions/{userId} - Get user preferences
PUT /subscriptions/{userId} - Update preferences
POST /subscriptions/unsubscribe - Unsubscribe user
GET /subscriptions/categories` - Get categories
Error Handling
- Email delivery failures
- Template rendering errors
- SMTP configuration issues
- Subscription validation errors
- Network connectivity problems
- Rate limiting handling
Performance Considerations
- Email queue management
- Bulk operation optimization
- Template compilation caching
- Delivery rate monitoring
- Resource usage optimization
Testing
Unit Testing
- Component functionality
- Service method testing
- Template rendering
- Preference management
Integration Testing
- Email delivery testing
- SMTP integration
- Database operations
- API endpoint testing
Performance Testing
- Bulk email handling
- Queue processing performance
- Template rendering speed
- Concurrent user testing
Best Practices
Notification Design
- Clear and concise messaging
- Appropriate priority levels
- User-friendly unsubscribe process
- Mobile-responsive templates
- Accessibility compliance
Email Deliverability
- Proper authentication setup
- List hygiene maintenance
- Bounce and complaint handling
- Sender reputation management
- Content optimization
Development
- Efficient queue processing
- Proper error handling
- Comprehensive logging
- Performance monitoring
- Security considerations
Future Enhancements
- Push notification support
- SMS notification integration
- Advanced personalization
- AI-powered content optimization
- Enhanced analytics and reporting
- Multi-language template support
- Real-time notification streaming